Author: basoridotcom@gmail.com

Jakarta, October 16, 2025 – PT Sumbawa Timur Mining (STM), a copper exploration company holding a 7th Generation Contract of Work, shared insights on critical mineral exploration at the Mineral & Coal Convention–Expo (Minerba Convex) 2025. The event, held at the Jakarta International Convention Center (JICC), was organized by the Directorate General of Mineral and Coal, Ministry of Energy and Mineral Resources (ESDM) as a forum for exchanging innovations and opening up investment opportunities in the Indonesian mining sector.

STM President Director, Bede Evans, was one of the speakers at the discussion session themed “Critical & Strategic Minerals to Strengthen National Industrialization.” In addition to Bede Evans, there were other speakers, namely the Division Head of Downstream Strategy, Research, and Process Engineering MIND ID, Muhidin; Deputy Chair of Data and Information of the Electric Vehicle Industry Association (Periklindo), Puryanto; and Indonesian Advanced Materials Expert Koesnohadi Kuncoro. This discussion was also attended by experts from relevant ministries and institutions as respondents, as well as the general public.

Critical minerals, the main topic of discussion, are minerals that play a vital role in the national economy, strategic technology, and the global energy transition. However, these minerals are vulnerable in terms of supply availability. According to the discussion moderator, Resvani, who also serves as Chair of the Minerba Convex 2025 Implementing Committee, cross-sector collaboration is needed in the development of critical minerals to increase competitiveness on the global stage.

“Critical mineral exploration is not easy. The process requires significant investment, is often located in difficul locations, and faces various technical and non-technical challenges. We need strong collaboration, research development, and human resource capacity development,” said Resvani, who is also Deputy Chairperson of the Indonesian Mining Experts Association (Perhapi).

Copper is a critical mineral and a key component of global energy transition plans. However, according to a 2022 study by S&P Global, the gap between copper supply and demand is expected to be significant by 2035—doubling compared to 2022. Substitution and recycling will not be sufficient to meet the needs of electric vehicles, electricity infrastructure, and renewable energy generation.

In his presentation, Bede Evans also stated that the demand for the critical mineral copper continues to increase both nationally and globally. “As a Company, Sumbawa Timur Mining is ready to meet the requirement through the development of the Hu’u Project. This copper exploration project is home to the Onto Deposit, the largest deposit discovered in the last 15 years, with a future production capacity estimated at 24 Mtpa in Lift 1 and 48 Mtpa in Lift 2,” he said.

Bede also explained that STM’s approach to becoming a world-class copper mining company encompasses several strategies, including the integration of science and technology, cross-sector collaboration, and a commitment to implementing Environmental, Social, and Governance (ESG) values. “To realize a company that can contribute optimally and sustainably, we will also utilize the potential of geothermal energy to support the low-carbon energy needs of our activities,” he explained.

Bede believes that each stakeholder has a crucial role to play in developing Indonesia’s critical minerals sector. He also believes that STM’s role as part of the industry is to invest in appropriate technology and methodology, adhere to transparency principles and international standards to ensure recognition of exploration results in the global market, and commit to social and environmental responsibility.

“Through aligned policies, research collaboration, the application of advanced technology, and strong human resource capacity, Indonesia has a significant opportunity to become a global leader in critical mineral exploration. STM is committed to participating in national efforts to strengthen the critical mineral supply chain through world-class, collaborative, and sustainability-oriented exploration,” he concluded.

This year’s Minerba Convex attracted over six thousand visitors from diverse backgrounds, including businesspeople, government officials, academics, associations, and the general public. In addition to thematic discussions, Minerba Convex 2025 also featured a variety of engaging booths, a forum for assistance with compliance with mining regulations, and a Mining Kids Adventure, a fun way for children to learn about the world of mining.

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture company between PT Aneka Tambang Tbk (20%) and Eastern Star Resources Pty Ltd (80%). STM manages the Hu’u Project, a copper exploration project operating under a 7th Generation Contract of Work (CoW) located in Hu’u Subdistrict, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW area also contains geothermal resources. To explore this potential, STM established its affiliate company, PT Sumbawa Timur Geothermal, which has received a Geothermal License (IPB) from the government. STM continues its journey toward realizing its vision of becoming a world-class copper mining operation powered by renewable energy.

For more information, please contact STM Communication Team .

Mataram, October 7, 2025 – PT Sumbawa Timur Mining (STM), a copper exploration company holding a 7th Generation Contract of Work, supported the success of the MotoGP Mandalika 2025 by providing one unit of helicopter as a facility for air transport and medical evacuation. The helicopter was stationed around the Pertamina Mandalika International Circuit, West Nusa Tenggara (NTB) Province, from the preparation period through the MotoGP event held on October 3–5, 2025.

MotoGP is the premier class of motorcycle racing world championship organized by the Fédération Internationale de Motocyclisme (FIM) and promoted by Dorna Sports. MotoGP has been held in various countries. Indonesia first hosted MotoGP in 1996–1997 at the Sentul Circuit, West Java Province. After a 25-year hiatus, Indonesia regained the honor of hosting MotoGP in 2022 to the present, held at the Mandalika Circuit.

In addition to serving as an air transport facility, the helicopter is also a vital part of safety and medical protocols in international sporting events, including MotoGP. This facility is one of the main requirements that must be fulfilled by the organizers. The availability of a helicopter strengthens emergency health services for racers, crew members, and visitors who require prompt treatment and medical evacuation.

The Governor of NTB, Dr. Lalu Muhamad Iqbal, expressed his appreciation for STM’s support. “We warmly welcome the support of PT Sumbawa Timur Mining in ensuring the success of MotoGP Mandalika 2025. This helicopter is used for air transport and medical evacuation needs if required, thereby enhancing NTB’s readiness to host international events with high safety standards,” said the Governor on Monday (6/10).

He added that the support represents a good synergy between the industrial sector and the government. “This is a concrete example of how the industrial sector in NTB and we, the Provincial Government, can support each other for regional growth. MotoGP Mandalika is a major agenda with great potential to boost the local economy, therefore cross-sector synergy is important to maintain,” he said.

STM Principal Communications, Cindy Elza, expressed her gratitude to the Governor of NTB for the opportunity given. “We are grateful and proud of the opportunity given by the Governor, allowing STM to be directly involved in the success of MotoGP Mandalika 2025. We also congratulate the NTB Provincial Government and all parties involved for the success of this event,” she said.

STM’s support for MotoGP Mandalika, Cindy continued, aligns with the company’s ongoing efforts to develop NTB’s economy, where STM operates. “This support is one form of our participation in regional economic development, in addition to the programs we carry out in Dompu Regency, our operational area. This support also aligns with STM’s core value, Life Matters Most, so we are pleased to provide our facilities and expertise to help realize a safe and successful MotoGP Mandalika,” she said.

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture company between PT Aneka Tambang Tbk (20%) and Eastern Star Resources Pty Ltd (80%). STM manages the Hu’u Project, a copper exploration project operating under a 7th Generation Contract of Work (CoW) located in Hu’u Subdistrict, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW area also contains geothermal resources. To explore this potential, STM established its affiliate company, PT Sumbawa Timur Geothermal, which has received a Geothermal License (IPB) from the government. STM continues its journey toward realizing its vision of becoming a world-class copper mining operation powered by renewable energy.

For more information, please contact the STM Communications Team.

Jakarta, September 30, 2025 – The Village Participation Program (PPD) initiated by PT Sumbawa Timur Mining (STM) successfully received the Silver category award at the 2025 Corporate Social Responsibility and Sustainable Village Development (CSR & PDB) Awards. This award was organized by the Indonesian Social Sustainability Forum (ISSF) in collaboration with the Ministry of Villages and Development of Disadvantaged Regions.

The CSR & PDB Awards is a recognition event for companies that have contributed to accelerating village and disadvantaged region development through innovative and collaborative programs. This year, the CSR & PDB Awards ceremony was held at Hotel Bidakara Jakarta on Tuesday (30/9), and was attended by the Minister of Villages and Development of Disadvantaged Regions H. Yandri Susanto, S.Pt., M.Pd., the Coordinating Minister for Food Affairs Dr. (H.C.) H. Zulkifli Hasan, S.E., M.M., other ministry officials, and several regional heads.

Chairman of ISSF, Dr. Sudarmanto, AAK., expressed his appreciation to the award recipients who have contributed to creating social sustainability. “The CSR and PDB Awards activities have impacted economic development in 431 villages. Today we are proud that corporations are contributing to transforming disadvantaged villages into developing ones, then into advanced and independent villages,” said Sudarmanto in his speech.

He also explained that there has been an increase in the number of villages being assisted since the award program was first held in 2022, which at that time involved 93 villages. According to Sudarmanto, this award program aligns with Presidential Asta Cita number 6, which is to build from the village and from the grassroots for economic equity and poverty eradication.

The effectiveness of PPD in Dompu Regency, West Nusa Tenggara Province, enabled STM to become one of the winners of the 2025 CSR & PDB Awards. PPD, which has been running since 2017, is STM’s form of support for the Village Medium-Term Development Plan (RPJMDes) established through village deliberations. In 2024, the budget allocated for PPD amounted to approximately IDR 1.83 billion, focusing on health, economy, and education sectors.

STM’s Senior Community Relations Analyst, Vovia Witni, explained that PPD is implemented in 8 villages in Hu’u District and 2 villages in Pajo District, Dompu Regency. “Each village has its own priority program determined through village deliberations. In Cempi Jaya Village, for example, last year they agreed to use PPD funds to improve posyandu facilities, revitalize early childhood education (PAUD), procure public toilets, and construct retaining walls,” said Witni.

Witni stated that through PPD, STM is present to support various community needs around the company’s operational area so that they can grow together. “We are here to support various community needs, always involving the local government as a form of collaboration and transparency. All PPD implementations are carried out by professional work partners agreed upon together,” said Witni after receiving the 2025 CSR & PDB Awards, which was directly presented by the Expert Staff for Strategic Planning at the Ministry of Energy and Mineral Resources, Jisman P. Hutajulu.

PPD is part of STM’s integrated community development and empowerment program (PPM) around the Hu’u Project area, a copper exploration project managed by STM. This program also received the Top CSR Awards in the 4-Star category in June 2025 for its contribution to social development. In addition to PPD, STM also has several flagship programs such as the Education Quality Improvement Program (EQUIP), Achievement Scholarship Program, MSME Development Program, Community Sanitation Program, and other programs that continue to be developed according to the potential and needs around the company’s operational area.

“We are proud that STM’s PPD was selected as one of the winners of the 2025 CSR & PDB Awards. This achievement is inseparable from solid teamwork, supportive company management, and support from various other parties. We thank everyone for their support and hope this award will motivate us to create the best and most sustainable contributions for the community,” Witni concluded.

Head of Adu Village, Alwi H. Arsyad, whose village is one of the PPD recipients from STM, said that this annual program greatly helps the community in meeting priority needs. “STM’s support through PPD is very beneficial for village development and helps the people of Adu Village. On behalf of the Adu community, I express my deepest gratitude to STM,” he said during the PPD program evaluation in Adu Village, Thursday (18/9).

In the 2025 PPD, the people of Adu Village planned a health program consisting of sports field improvements, family latrines, and equipping the village maternity clinic (polindes) with medical equipment. In the economic sector, they plan to procure agricultural tools such as hand tractors and sprayers. Meanwhile, in the education sector, they will improve facilities and infrastructure for early childhood education (PAUD) and Qur’an education parks (TPQ), as well as procure marawis instruments.

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture company between PT Aneka Tambang Tbk (20%) and Eastern Star Resources Pty Ltd (80%). STM manages the Hu’u Project, a copper exploration project operating under a 7th Generation Contract of Work (CoW) located in Hu’u Subdistrict, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW area also contains geothermal resources. To explore this potential, STM established its affiliate company, PT Sumbawa Timur Geothermal, which has received a Geothermal License (IPB) from the government. STM continues its journey toward realizing its vision of becoming a world-class copper mining operation powered by renewable energy.

For more information, please contact the STM Communications Team.

Dompu, August 9, 2025 — The Indonesian Journalists Association (PWI) of Dompu Regency, supported by PT Sumbawa Timur Mining (STM), held the PWI Cup 2025 futsal tournament on August 9–10. This inter-media tournament was organized to celebrate the 80th Anniversary of the Republic of Indonesia. A total of 10 local media outlets competed to win the tournament, which took place at the STKIP YAPIS Dompu futsal court.

In this tournament, STM not only acted as a sponsor but also enlivened the event by participating in a friendly match against PWI Dompu. STM’s players consisted of representatives from the Community Relations team working on the Hu’u Project. The event was also attended by representatives from journalist organizations, press companies, and local government, demonstrating synergy in sports development in Dompu Regency.

Dompu Deputy Regent, Syirajuddin, expressed appreciation for the organization of the PWI Cup 2025. “On behalf of the Dompu Regency Government, we thank all parties, especially STM, for their support in making this tournament possible,” he said during his opening remarks at the tournament.

Meanwhile, Acting Assistant I of the Dompu Regional Secretariat, H. Khairul Insan, who represented the Regent of Dompu at the tournament’s closing ceremony, stated that this collaboration reflects the company’s openness to the public and government. “On behalf of the regional government, we express our appreciation and gratitude for STM’s ongoing support. We hope this good cooperation can be maintained and continued in the future,” he said.

Media Amanat emerged as the champion of the tournament after defeating Koran Pagi Dompu in the final match, while Tambora Post and Suara Nusantara shared third place. The Chairman of PWI Dompu Regency, Drs. Muhyiddin, thanked all parties who supported the success of the tournament.

“Thank you to everyone who contributed to the success of the PWI Cup 2025. This event is not just a sports activity, but also a moment of camaraderie. Congratulations to the champions, and don’t be discouraged for those who didn’t win. Let’s keep practicing and look forward to the next tournament,” he said.

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture company between PT Aneka Tambang Tbk (20%) and Eastern Star Resources Pty Ltd (80%). STM manages the Hu’u Project, a copper exploration project operating under a 7th Generation Contract of Work (CoW) located in Hu’u Subdistrict, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW area also contains geothermal resources. To explore this potential, STM established its affiliate company, PT Sumbawa Timur Geothermal, which has received a Geothermal License (IPB) from the government. STM continues its journey toward realizing its vision of becoming a world-class copper mining operation powered by renewable energy.

For more information, please contact the STM Communications Team.

Dompu, July 21, 2025 — PT Sumbawa Timur Mining (STM), a copper exploration company managing the Hu’u Project, demonstrated its support for the development of tourism in Dompu Regency, West Nusa Tenggara Province (NTB), by contributing to the success of the Lakey Festival. Held from July 12–20, 2025, along Lakey Beach in Hu’u District, the festival drew more than 30.000 visitors.

Lakey Festival showcased breathtaking natural scenery blended with cultural richness, diverse culinary offerings, and various sporting events. Activities included the Lakey Fun Run, mini boat races, a surfing tournament, cultural camps, mass traditional dance performances, and much more. The appearance of special guest Juan Reza, a singer from East Nusa Tenggara known for the hit song Pica-Pica, added to the festive atmosphere.

Festival visitors and participants came not only from Dompu and other parts of NTB, but also from across Indonesia and abroad. For example, in the surfing tournament held from July 15–17, tourists from Australia, Germany, the Netherlands, China, South Africa, and the United States competed on Lakey’s unique “left-handed” waves, which break to the left.

Over the nine-day event, the Lakey Festival contributed significantly to the local economy. The Dompu Department of Culture and Tourism estimated that the festival generated around Rp15 billion in economic activity, particularly in the micro, small, and medium enterprise (MSME) sector. One of the festival’s main events, the Ou Balumba dance, even set a national record with the Indonesian World Records Museum (MURI), performed by 21.220 dancers, the largest ever recorded in Indonesia.

Dompu Regent Bambang Firdaus expressed special appreciation for STM, one of the festival’s main sponsors. “Sumbawa Timur Mining played a key role in organizing the Lakey Festival, helping to realize what we all envisioned. It was a remarkable success,” he stated amid the celebration.

The Regent also emphasized the need to continue the well-established partnership between the Dompu Regency Government and STM. “This is part of our joint effort to grow the economy and build the Dompu we all love. Once again, thank you to STM and its outstanding management,” he said.

STM’s contribution went beyond sponsorship. The company renovated the Lakey Beach pedestrian path, assisted with festival site preparation using heavy machinery for three days, and provided two garbage trucks and cleaning personnel to help maintain cleanliness.

Abdul Muis, the Head of Dompu’s Department of Culture and Tourism, also praised STM’s support. “From the bottom of our hearts, we thank STM for their incredible contribution, which helped make the Lakey Festival a success,” he said.

STM also empowered its assisted MSME group, the Jara Hu’u MSME Association, to take part in the festival. The group sold a variety of locally made products such as menepela chips, moringa sticks, fish floss, salted peanuts, and assorted traditional cakes. Two of these entrepreneurs were even selected to be part of the festival’s core organizing committee, collaborating with Dompu’s Cooperative and MSME Office to prepare meals for VIP guests.

Ulya Defretes, STM’s Community Relations Manager, said the company’s involvement reflects its commitment to local economic development through both tourism and MSMEs. “We’re proud to have been part of the 2025 Lakey Festival. This event has a broad impact on Dompu, not just in promoting tourism but also in creating opportunities for MSMEs to grow. We hope the positive effects of this festival will continue to benefit the Dompu community long after the event ends,” she said.

The excitement of the Lakey Festival also attracted attention from provincial and national government representatives. Among the attendees were NTB Governor Dr. H. Lalu Muhamad Iqbal, Special Presidential Envoy for Tourism Zita Anjani, and Director of ICT Services at the Ministry of Creative Economy, Dr. H. Abdul Malik, along with several other officials. This multi-level collaboration played a vital role in the success of the festival and further strengthened the spirit of unity in advancing Dompu’s tourism sector.

 

***

 

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture company between Eastern Star Resources Pty Ltd (80%), a subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM manages the Hu’u Project, a copper exploration project operating under a 7th Generation Contract of Work (CoW) located in Hu’u Subdistrict, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW area also contains geothermal resources. To explore this potential, STM established its affiliate company, PT Sumbawa Timur Geothermal, which has received a Geothermal License (IPB) from the government. STM continues its journey toward realizing its vision of becoming a world-class copper mining operation powered by renewable energy.

For more information, please contact the STM Communications Team.

 

 

Jakarta, June 26, 2025 — PT Sumbawa Timur Mining (STM), a copper exploration company holding a 7th Generation Contract of Work (CoW), held an audience with the Press Council to express its support for the principle of responsible press freedom. STM sought guidance from the Press Council on how to build communication with the press community in accordance with prevailing laws and ethical codes. Additionally, STM aligned its media development plans in its operational area with the program orientations of the Press Council.

The meeting, held at the Press Council Building in Central Jakarta, was attended by Vice Chairperson of the Press Council and Chair of the Inter-Institutional and Foreign Relations Commission, Totok Suryanto, along with Abdul Manan, Chair of the Legal and Legislation Commission. Representing STM was Principal Communications Cindy Elza, accompanied by several members of her team.

Vice Chairperson Totok Suryanto welcomed STM’s initiative to support the Press Council in fulfilling its mandate. “At the Press Council, we continuously encourage the media to fulfill its role as a public watchdog while upholding journalistic principles and ethics. Media verification is indeed important as an indicator of professionalism, but more crucially, all journalistic products must be based on the journalistic code of ethics,” he explained during the session.

STM’s Principal Communications Officer Cindy Elza expressed her appreciation for the warm reception by the Press Council. “This audience not only gave us the opportunity to build rapport with the new members of the Press Council but also reinforced our commitment to supporting better and more responsible journalistic practices,” said Cindy.

Cindy added that journalistic work can influence public opinion and attitudes. Therefore, sound journalistic practices that adhere to laws and ethical standards must be supported. “We are very concerned about how unverified issues can create negative perceptions about the industry. That is why we believe in the importance of constructive partnerships between industry and the media,” she stated.

In recent years, STM has actively supported the development of quality journalism in its working area in Dompu Regency, West Nusa Tenggara Province, through various programs such as writing and photography training, as well as scientific seminars, particularly related to mineral exploration. STM collaborates with journalists, experts, and reputable organizations in carrying out these programs.

***

 About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture company between Eastern Star Resources Pty Ltd (80%), a subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM manages the Hu’u Project, a copper exploration project operating under a 7th Generation Contract of Work (CoW) located in Hu’u Subdistrict, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW area also contains geothermal resources. To explore this potential, STM established its affiliate company, PT Sumbawa Timur Geothermal, which has received a Geothermal License (IPB) from the government. STM continues its journey toward realizing its vision of becoming a world-class copper mining operation powered by renewable energy.

For more information, please contact the STM Communications Team.

 

Jakarta, June 12, 2025 — PT Sumbawa Timur Mining (STM) has once again earned national-level recognition in community development and empowerment, this time at the 2025 TOP CSR Awards. The copper exploration company, holder of a 7th Generation Contract of Work (CoW), received two accolades: the 4-Star category award and the TOP Leader on CSR Commitment award.

The 4-Star category award acknowledges STM’s achievement of an “Very Good” rating for its systems, policies, and implementation of Corporate Social Responsibility (CSR) programs that support sustainable business growth. The TOP Leader on CSR Commitment award was presented to STM’s President Director, Bede Evans, in recognition of his strong commitment to building robust systems, good governance, and successful CSR implementation within the company.

To receive these awards, STM first underwent a rigorous evaluation process that included documentation submission, presentations, and a series of assessments by a panel of judges. The panel consisted of academic experts and industry practitioners from a range of organizations, including universities, CSR consultants, media, and industry players. Based on their comprehensive evaluation, the judges declared STM worthy of receiving both awards.

STM’s flagship CSR programs include the Village Participation Program (PPD), Education Quality Improvement Program (EQUIP), merit-based scholarships, MSME development, organic farming, stunting prevention, and basic literacy programs. The 2025 TOP CSR Awards jury highlighted that these initiatives, strongly supported by the company’s leadership, contribute significantly to the Asta Cita and the 17 Priority Programs of the 2024–2029 Merah Putih Cabinet.

The theme of this year’s award was “CSR for Sustainable Business Growth and Asta Cita Government Programs.” According to M. Lutfi Handayani, M.M., M.B.A., Chief Organizer of the 2025 TOP CSR Awards and Editor-in-Chief of Top Business magazine, the theme aims to encourage various stakeholders to jointly support the government’s programs.

“We encourage CSR implementation in companies to align with their business growth strategies so that it supports long-term sustainability. In addition, we hope that CSR programs can make real contributions to national development, especially those aligned with the Asta Cita priority programs,” said Lutfi during the award ceremony held in Jakarta on Wednesday, (11/6).

Lutfi also congratulated STM on its achievement in winning the 4-Star category and the TOP Leader on CSR Commitment award. “The accomplishment of PT Sumbawa Timur Mining is remarkable. Receiving the 4-Star rating shows that the company’s CSR programs are well-aligned with its business strategy,” he said. He added that the company has also adopted the principles of ISO 26000 as a guideline for carrying out its social responsibility efforts.

Ulya Defretes, STM’s Community Relations Manager—whose department oversees community development and empowerment programs—expressed her gratitude to the organizers of the 2025 TOP CSR Awards for their trust in STM. “This award further motivates us to continue making a meaningful impact on the development and empowerment of communities around our operational area in Dompu Regency, West Nusa Tenggara Province. We are committed to growing together with the community,” she said.

According to Ulya, STM’s community empowerment programs reached more than 10,960 direct beneficiaries throughout 2024. These beneficiaries were served through several program pillars: economic development, health, education, and infrastructure. “We are thankful to the community and company partners who have been involved in all of our programs. Without their support, these initiatives would not have been successfully implemented,” she added.

The 2025 TOP CSR Awards further affirm STM’s strong commitment to community development and empowerment throughout its exploration journey. Just six months ago, STM also received the Gold Award at the Indonesian SDGs Awards (ISDA) for its EQUIP program, and another Gold Award at the Indonesian CSR Awards (ICA) for its merit-based college scholarship program. At the same time, STM was also named “Most Committed Company in Community Engagement and Development” by the Corporate Forum for CSR Development (CFCD).

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a wholly-owned subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM owns the Hu’u Project, a copper exploration project operating under the 7th Generation Mineral Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW also holds geothermal resources. To explore this potential, the company has completed the Preliminary Survey and Geothermal Exploration Assignment. The CoW area spans 19,260 hectares across Dompu and Bima Regency. STM is continuing its journey to achieve its vision of becoming a world-class copper mining operation supported by renewable energy.

For further information, please contact STM Communication Team

Dompu, June 5, 2025 — PT Sumbawa Timur Mining (STM), a copper exploration company managing the Hu’u Project, distributed 11 sacrificial cows to communities in Dompu Regency in celebration of Eid al-Adha. This donation also serves as part of the company’s support for public nutrition improvement programs in line with government initiatives.

Nine of the sacrificial animals were allocated to villages in the Hu’u Subdistrict, while the remaining were given to the community of Pajo Subdistrict and to the management of Baiturrahman Grand Mosque in Dompu. All animals will be slaughtered by local Eid committees at each location and the meat will be distributed to eligible recipients.

Hu’u Village Head, Mujahidin, S.Sos., expressed his appreciation for STM’s support in providing the sacrificial animals. The animal for Hu’u Village is planned to be slaughtered at Al-Falah Mosque in Sigi Hamlet. “Every Eid al-Adha, STM consistently supports us with sacrificial animals. We distribute the meat to those in need. We are truly grateful and appreciative,” said Mujahidin.

As in previous years, STM’s donation is not limited to the Hu’u Subdistrict, which is located near the company’s operational area, but also includes Pajo Subdistrict. While last year’s donation went to the community of Tembalae Village, this year it was the turn of Ranggo Village to receive the support.

“Alhamdulillah, this is the third year Pajo Subdistrict has received sacrificial animals from STM. We are grateful, this shows the company’s care for our community,” said Pajo Subdistrict Head, Imran, SE., after receiving the donation at the Ranggo Village office.

Meanwhile, the sacrificial animal for Baiturrahman Grand Mosque in Dompu was symbolically received by mosque representative Abdul Farid. The year 2025 marks the fourth year the mosque has received such a donation from STM. “After the slaughter and meat distribution, we always report back to the donor as a form of accountability,” said Abdul Farid.

STM’s Community Relations representative, Igo Pardede, who was involved in the distribution, stated that this program is part of STM’s ongoing efforts to strengthen relationships with the local communities. “We hope the meat is well received and enjoyed by the community, and that it adds warmth to the Eid celebration,” he said.

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a wholly-owned subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM owns the Hu’u Project, a copper exploration project operating under the 7th Generation Mineral Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW also holds geothermal resources. To explore this potential, the company has completed the Preliminary Survey and Geothermal Exploration Assignment. The CoW area spans 19,260 hectares across Dompu and Bima Regency. STM is continuing its journey to achieve its vision of becoming a world-class copper mining operation supported by renewable energy.

For further information, please contact STM Communication Team

 

Dompu, June 5, 2025 — PT Sumbawa Timur Mining (STM), a copper exploration company operating under a 7th Generation Contract of Work (CoW), joined the commemoration of World Environment Day through environmental greening and plastic waste reduction programs. These initiatives align with the national theme adopted for the mineral and coal mining subsector: “Plant More Trees and Stop Plastic Pollution.” STM collaborated with its partners to create a positive impact as part of this annual United Nations (UN)-initiated event held every June 5.

Through its Sustainability Department, STM continues to enhance environmental rehabilitation in its former exploration areas. In addition to fulfilling regulatory compliance, reforestation reflects the company’s commitment to long-term environmental preservation. One testament to STM’s dedication is its achievement in 2024, when it exceeded its annual reclamation target by approximately 43.3%. Areas that have not yet been reclaimed are still in use for exploration facilities.

STM has also earned the ISO 14001:2015 certification for environmental management, underscoring its commitment to sustainable mining practices even during the exploration phase. This certification was issued by the British Standards Institution (BSI), an international certification body. During the certification process, STM was assessed on several key aspects, including its understanding of environmental management systems, comprehensive planning, and effective operations.

In parallel, STM conducted a plastic waste reduction campaign through educational and environmental cleanup activities in Dompu Regency and Mataram City, West Nusa Tenggara Province (NTB). These activities included a World Environment Day seminar with Muhammadiyah University of Mataram (UMMAT), the Sustainability Goes to School program at SDN 12 Hu’u, and a Clean the Ocean event with local residents at Jala Beach. These initiatives also align with the 2025 global World Environment Day theme: “Beat Plastic Pollution.”

According to data from the National Waste Management Information System (SIPSN) of the Ministry of Environment and Forestry, the waste generated in West Nusa Tenggara (NTB) Province in 2024 reached 626,286 tons. Of this total, 20.11 percent—or approximately 125,893 tons—was plastic waste. Unlike organic waste, plastic waste is extremely difficult to decompose. If not properly managed, it has the potential to contaminate water and soil, leading to health problems.

STM’s Sustainability Advisor, Ratri Auliandari, emphasized that protecting the environment is a shared responsibility, and therefore cross-sector collaboration is essential. She expressed hope that STM’s joint efforts with its partners will lead to a positive impact in the future.
“We hope that these educational and cleanup activities will encourage participants to become more mindful in their use of plastic and manage their waste responsibly,” she stated on Thursday (5/6).

Professor Joni Safaat Adiansyah, Ph.D., Head of the Center for Environmental Studies and Disaster Mitigation (PSLHMB) at Muhammadiyah University of Mataram (UMMAT), welcomed the collaboration with STM, which included a sustainable environment seminar attended by more than 140 participants. He noted that this event served as a reminder of the importance of environmental preservation. “By protecting the environment, we create benefits not only for humans but also for nature,” he said. Professor Joni was also one of the speakers at the seminar held in the UMMAT Rectorate Hall on Monday (2/6).

Meanwhile, the Principal of SDN 12 Hu’u, M. Said, S.Pd., expressed his appreciation to STM for holding the Sustainability Goes to School program at his school. The event included crafting workshops using plastic waste and environmental education. He noted that thanks to STM’s ongoing support, SDN 12 Hu’u was successfully designated as an Adiwiyata School—a title awarded to schools that are environmentally conscious and support sustainable development.
“STM’s programs are both educational and enjoyable for our students,” he said on Tuesday (3/6).

On another front, Jala Village Head, Sadam Husain, voiced his strong support for the beach cleanup program in collaboration with STM. Around 70 participants took part in the activity and managed to collect 200 kilograms of plastic waste. This initiative not only made the area cleaner and more comfortable but also helped prevent various diseases that can arise from waste accumulation. “STM has consistently shown its concern and inspired residents to maintain environmental cleanliness,” he said on Wednesday (4/6), while participating in the beach cleanup.

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a wholly-owned subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM owns the Hu’u Project, a copper exploration project operating under the 7th Generation Mineral Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW also holds geothermal resources. To explore this potential, the company has completed the Preliminary Survey and Geothermal Exploration Assignment. The CoW area spans 19,260 hectares across Dompu and Bima Regency. STM is continuing its journey to achieve its vision of becoming a world-class copper mining operation supported by renewable energy.

For further information, please contact STM Communication Team

 

Dompu, May 31, 2025 — The scholarship program of PT Sumbawa Timur Mining (STM), a copper exploration company holding a 7th Generation Contract of Work (CoW), has successfully supported students from Dompu Regency in achieving accomplishments at both national and international levels. Since 2021, STM has provided 109 scholarship slots for the youth of Dompu. These students are enrolled in various universities across Indonesia in diverse fields of study.

The scholarship is one of STM’s active contributions to improving the quality of education in Dompu. Based on data from the Dompu Regency Office of Population and Civil Registration in 2024, the number of D1–S3 (Diploma to Doctorate) graduates in the region is only 19.965, or about 7,19 percent of the total population. The scholarship program aims to increase the number of highly qualified university graduates who can contribute to the development of the region.

Darmansyah Putra, a young man from Daha Village, Hu’u District, is one of the 2021 STM scholarship recipients who has made notable achievements. As a Geological Engineering student at AKPRIND University Yogyakarta, he won 1st Place in the Student Research Poster Competition at the 2024 Indonesian Society of Economic Geologists (MGEI) Convention. He was also a finalist for abstract and poster presentations at the 2024 Society of Economic Geologists (SEG) event in Namibia, Africa.

Another inspiring story comes from Dede Ramadhan, an Agroecotechnology student at Brawijaya University in Malang. He is a 2023 STM scholarship recipient from Kandai 1 Subdistrict, Dompu District. Dede won 1st Place in the 2024 College Students Essay Competition at the University of Jember. He also earned a Silver Medal at the 2024 Youth International Science Fair in the technology category, competing among approximately 2.400 participants from 16 countries.

The success stories continue with Salahudin, a Nursing Science student at Tribhuwana Tunggadewi University (UNITRI) in Malang. He is a 2023 STM scholarship recipient from Bakajaya Village, Woja District. Salahudin’s remarkable achievements include being named the Best Graduate at both faculty and university levels for UNITRI’s 2025 undergraduate program, as well as winning 2nd Place in the 2023 National Nursing Skill Lab Competition.

Salahudin stated that his achievements would not have been possible without the support of various parties, especially STM through its scholarship program. “I want to express my deepest gratitude. Thanks to the scholarship I received from PT Sumbawa Timur Mining, I was able to complete my studies quickly and without obstacles. That’s what I’m truly grateful for,” he said on Thursday (29/5), just a few days after his graduation ceremony.

The Head of the Dompu Regency Office of Education, Youth, and Sports (Dikpora), Drs. H. Rifaid, M.Pd., said that STM’s support in advancing human resources in Dompu goes beyond formal education and extends to non-formal education as well. According to him, STM frequently collaborates with the local government on various educational programs, even starting from early childhood education (PAUD). “This reflects the company’s commitment to advancing the region where it operates,” he stated on Friday (30/5).

Rifaid added that STM’s other collaborations also include the development of teacher capacity and school education management. This is carried out through various seminars and intensive training sessions. “These are good practices that may not have been fully utilized by teachers in Dompu before,” Rifaid said.

STM’s Community Relations Manager, Ulya Defretes, stated that the higher education scholarship program is part of STM’s integrated education development initiatives, aligned with educational programs promoted by the local government. In addition to college scholarships, there are also programs such as student seminars and training, improvement of teaching staff quality, and support for educational infrastructure.

“Last year, we also provided full scholarships for 100 students from Dompu Regency for a specialized study program, it was D1 in Heavy Equipment Engineering at the Olat Maras Community Academy (AKOM) in Sumbawa Regency. All of our efforts are a testament to our commitment to enhancing the quality of education and human resources in Dompu Regency, for a brighter future of the region,” Ulya said.

For its commitment to educational development programs, STM was awarded the Gold Medal at the 2024 Indonesian SDGs Awards (ISDA) for its Education Quality Improvement Program (EQUIP) and the Gold Medal at the 2024 Indonesian CSR Awards (ICA) for its Achievement Scholarship Program. In the same year, STM was also named “The Most Committed Company in Community Engagement and Development” by the Corporate Forum for CSR Development (CFCD).

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a wholly-owned subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM owns the Hu’u Project, a copper exploration project operating under the 7th Generation Mineral Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW also holds geothermal resources. To explore this potential, the company has completed the Preliminary Survey and Geothermal Exploration Assignment. The CoW area spans 19,260 hectares across Dompu and Bima Regency. STM is continuing its journey to achieve its vision of becoming a world-class copper mining operation supported by renewable energy.

For further information, please contact STM Communication Team

Dompu, May 5, 2025 — The Provincial Government of West Nusa Tenggara (NTB) and the Regional People’s Representative Council (DPRD) of Dompu Regency conducted a visit to PT Sumbawa Timur Mining’s (STM) copper exploration area in Hu’u District, also known as the Hu’u Project. This joint visit aimed to obtain a clear picture of STM’s environmental management programs within its working area, including water quality monitoring and land reclamation efforts.

The NTB Provincial Government was represented by the Energy and Mineral Resources Office (ESDM) and the Environmental and Forestry Office (LHK), accompanied by the Environmental Office (LH) of Dompu Regency. The Dompu DPRD was represented by the Chairman and Vice Chairman of the council, along with seven other members. During the visit, the delegation participated in a discussion session led by STM’s Head of Mining Engineering (KTT), followed by a direct field observation.

During the joint visit, the team reviewed the former drilling point of the Test Pumping Bore Program (TPBP), which tested a method for deep groundwater cooling. The TPBP was previously conducted to ensure that STM’s future underground mining can be carried out safely, as the Onto copper deposit lies 500 meters below the surface and is located near a geothermal system with temperatures ranging from 80 to 110 degrees Celsius.

Near the TPBP area, the visiting guests observed a deep groundwater holding pond that was previously used as one of the test facilities. This pond is still maintained today as it will be used for future testing. STM’s Sustainability Team routinely monitors and maintains the pond to ensure that it meets the applicable regulatory water quality standards.

The Acting Head of the NTB Environmental and Forestry Office, Mursal, S.P., M.Si., stated that STM is a verified company that complies with environmental procedures. He clarified that claims suggesting the TPBP support pond is a mining waste pond are inaccurate. “We have seen with our own eyes that the reports are not true — they do not match the actual facts,” he said.

This statement was reinforced by the Head of Dompu Regency’s Environmental Office, Jufri, ST, M.Si. He noted that STM pays serious attention to the environment around the holding pond. “STM is so cautious about soil contamination that they installed a geomembrane. The geomembrane in this pond prevents water from directly touching the ground. Its function is to prevent water from seeping into the soil — it is held back by the geomembrane,” he explained.

Chairman of the Dompu DPRD, Ir. Muttakun, also provided clarification regarding the circulating issue about an alleged discovery of a mining waste pond in STM’s exploration area.
“We’ve come here, and so far, we see that the pond is not as massive as claimed. This has been clarified,” he stated. According to Muttakun, the pond measures approximately 12×10 meters with a depth of around 1 to 1.5 meters.

“I saw two ponds. The first is a mud pond, and the other is a water pond. Each has a different function. The mud pond is used to collect water (with carried sediment) that comes out during drilling. Meanwhile, the water pond is used as a reserve in case of water loss during the drilling process. So, the water is indeed used to facilitate the drilling process,” Muttakun explained.

Vice Chairman of the Dompu DPRD, Kurnia Ramadhan, S.E., M.E., expressed appreciation for the transparency shown by STM through this visit. “STM is very open in sharing information regarding its exploration activities. This is important for us, the people of Dompu — that we must remain open to anyone who wishes to invest in our region, as long as the investment brings benefits and advantages to the area,” he stated.

STM’s Head of Mining Engineering (KTT), Yan Fuadi, emphasized that environmental conservation is an integral part of STM’s exploration journey. The company continuously strives to ensure that exploration activities coexist harmoniously with nature and surrounding communities. “PT Sumbawa Timur Mining consistently adheres to environmental management procedures and coordinates with the government in fulfilling its obligations,” he stated.

Beyond water monitoring, he also cited sustainable environmental management through land reclamation. “In 2024, STM exceeded its reclamation target by approximately 43.3 percent, successfully reclaiming 11.51 hectares of land compared to the planned 8.03 hectares,” he said. The remaining areas not yet reclaimed, according to Yan Fuadi, are still being used to support ongoing exploration activities and will be reclaimed in accordance with applicable regulations.

To support sustainable environmental management, STM also operates a 0.44-hectare nursery with a capacity of 20,000 ready-to-plant seedlings. The seedlings are dominated by pioneer plant species that accelerate natural succession and support the growth of local plant communities. This nursery is powered by renewable energy sourced from solar panels, reflecting STM’s commitment to emission reduction and environmental sustainability.

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a wholly-owned subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM owns the Hu’u Project, a copper exploration project operating under the 7th Generation Mineral Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW also holds geothermal resources. To explore this potential, the company has completed the Preliminary Survey and Geothermal Exploration Assignment. The CoW area spans 19,260 hectares across Dompu and Bima Regency. STM is continuing its journey to achieve its vision of becoming a world-class copper mining operation supported by renewable energy.

 

For further information, please contact STM Communication Team

 

Dompu, April 30, 2025 – PT Sumbawa Timur Mining (STM), a copper exploration company managing the Hu’u Project, supports the Dompu Regency Government of West Nusa Tenggara (NTB) Province in preventing youth violence and creating safe spaces in schools through student seminars and teacher workshops. The week-long series of activities was held at three schools, involving around 600 students and 115 teachers.

Youth violence not only disrupts the learning process but also has the potential to damage students’ social and emotional development. The escalation of youth violence cases may also lead to material losses and even fatalities. Contributing factors include difficulties in emotional regulation, conflict resolution, and building healthy peer relationships.

In response to this situation, STM held student seminars and teacher workshops at SMPN 1 Hu’u, SMAN 1 Hu’u, and SMKN 1 Hu’u as an educational and preventive effort to foster a safe, inclusive, and violence-free school environment. This initiative was carried out in collaboration with the Kanaka Foundation, a nonprofit organization whose mission includes improving access to and the quality of education.

The student seminar was themed “No Drama, No Fights: Cool Ways to Handle Conflict.” The expected outcomes of this interactive seminar include students identifying conflict triggers and how to avoid them, mastering emotional regulation techniques, enhancing empathy, and committing to maintaining a safe school environment.

Meanwhile, the teacher workshop carried the theme “Creating Safe Spaces in Schools.” The aim of the activity was to equip teachers with the ability to identify early signs of violence and carry out appropriate interventions, strengthen relationships with students to foster safe environments, implement de-escalation strategies, and develop school-based violence prevention action plans.

The series of events was led by Kanaka Foundation facilitator Yudo H.B. Timtim, and supported by STM’s Community Development team. The methods used in both the student seminar and teacher workshop included interactive discussions and case studies, mindfulness and relaxation exercises, conflict resolution simulations, and the development of follow-up action plans. Importantly, the sessions also included a declaration of anti-violence commitment from participants.

STM Community Development team member Vovia Witni stated that the role of parents and educators is crucial in supporting students’ growth. “We see the need for character development among the younger generation, particularly children—how they can recognize their own emotions to avoid becoming bullies either at school or in the community,” she said.

Witni added that STM continues to identify educational needs in Dompu Regency, aligning with government educational plans. To date, STM has carried out various education support programs from early childhood education (PAUD) to higher education, including technical and non-technical training, scholarships, and support for teaching and learning facilities.

The seminar and workshop were warmly welcomed by participants. Ummul Khairat, S.Pd., a teacher at SMPN 1 Hu’u, said that the workshop facilitated by STM helped her better understand her students. “This is a basic need for us as teachers—to understand the psychology of our students. Our grasp of psychology is still limited, especially since, as human beings, we can be emotionally affected by our environment,” she expressed.

Drs. H. Rifaid, M.Pd., Head of the Dompu Regency Office of Education, Youth, and Sports (Dikpora), acknowledged that violence in schools can be influenced by problems outside of school. According to him, the student seminar and teacher workshop facilitated by STM are expected to serve as a teaching model to create violence-free schools, which can also be applied in other schools across Dompu Regency.

“The presence of PT Sumbawa Timur Mining has greatly supported us in preparing teachers in Hu’u Subdistrict and surrounding areas to develop best practices that can be shared with other teachers throughout Dompu Regency,” said Rifaid.

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a wholly-owned subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM owns the Hu’u Project, a copper exploration project operating under the 7th Generation Mineral Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW also holds geothermal resources. To explore this potential, the company has completed the Preliminary Survey and Geothermal Exploration Assignment. The CoW area spans 19,260 hectares across Dompu and Bima Regency. STM is continuing its journey to achieve its vision of becoming a world-class copper mining operation supported by renewable energy.

For further information, please contact STM Communication Team

 

 

Jakarta, April 15, 2025 – PT Sumbawa Timur Mining (STM) has introduced a new logo as part of the company’s ongoing growth and development. This new identity reflects the spirit and resilience of the company as it continues to advance in copper exploration, supported by responsible and effective innovation. A new chapter has begun in STM’s journey to become a world-class copper mining company.

The new logo consists of three core elements: balance, mountain, and mining. The balance element symbolizes the company’s dedication to maintaining harmony between environmental conservation and human needs. The mountain represents the vast and valuable natural resources. The mining element conveys STM’s expertise in extracting mineral content and its contribution to the global supply chain.

STM’s Principal Communications Officer, Cindy Elza, stated that the new identity strengthens the company’s commitment to the development of the Hu’u Project. “We are affirming our presence as a company that aims to deliver long-term value to all stakeholders through a clear vision based on sustainability, responsibility, and inclusivity,” she said.

Cindy also emphasized that the company’s vision, mission, and core values remain unchanged despite the new logo. “We continue to aspire to become a world-class copper company powered by renewable energy. Our core values also remain the same. We uphold safety, trust, integrity, supportiveness, and strong communication and coordination. We are a trusted partner, always striving to bring maximum benefits to communities and the environment,” she added.

The logo refresh energizes STM’s commitment to the success of the Hu’u Project. The company is currently moving beyond the pre-feasibility phase and continues to conduct in-depth studies to ensure the mineral resources can be mined safely and optimally. According to the company’s second public announcement in 2022 on the estimated resources of the Onto Deposit, the total resources are estimated at 2.1 billion tonnes, with each tonne containing 0.86% copper (Cu) and 0.48 grams of gold (Au).

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a wholly-owned subsidiary of Vale Base Metals, and PT Aneka Tambang Tbk (20%). STM owns the Hu’u Project, a copper exploration project operating under the 7th Generation Mineral Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW also holds geothermal resources. To explore this potential, the company has completed the Preliminary Survey and Geothermal Exploration Assignment. The CoW area spans 19,260 hectares across Dompu and Bima Regency. STM is continuing its journey to achieve its vision of becoming a world-class copper mining operation supported by renewable energy.

For further information, please contact STM Communication Team

Toronto, March 7, 2025 — The Prospectors & Developers Association of Canada (PDAC), a leading global mineral exploration and development community, has awarded the 2025 Thayer Lindsley Award to the Onto Deposit Discovery Team. This award is given to individuals or exploration teams who have made a significant discovery with economic feasibility potential. The Onto Deposit Discovery Team consists of experts from PT Sumbawa Timur Mining (STM), Vale Exploration Pty Ltd, and PT Vale Eksplorasi Indonesia.

Since the discovery of the Onto Deposit in 2013, in-depth studies and further exploration have been carried out by PT Sumbawa Timur Mining, known as the Hu’u Project. This world-class copper–gold deposit has an estimated resource of approximately 2.1 billion tonnes, with each tonne containing 0.86% copper (Cu) and 0.48 grams of gold (Au). The economic significance of the Onto Deposit, combined with its technical challenges and the innovative exploration methods used, led to the team being recognized for their contribution to the global mining industry.

On its official website, PDAC stated that the Onto Deposit is an extraordinary “blind mineral discovery.” The discovery was made in a densely forested mountainous area with no surface mineralization, through deep drilling (holes up to 800 meters) following mapping, river sediment and soil sampling, and airborne geophysical surveys (LiDAR, magnetic, and radiometric). The deposit is located 500 meters below the surface, hidden beneath a layer of unmineralized volcanic rock.

The award was presented on March 4, 2025, during the PDAC Awards Gala & Nite Cap event held in Toronto, Canada. This event honors outstanding achievements in the global mineral exploration and mining industry. In addition to the Thayer Lindsley Award, other award categories include the Bill Dennis Award, Skookum Jim Award, Sustainability Award, and Viola R. MacMillan Award. STM congratulates all the outstanding winners!

***

About PT Sumbawa Timur Mining

PT Sumbawa Timur Mining (STM) is a joint venture company between PT Aneka Tambang Tbk (20%) and Eastern Star Resources Pty Ltd (80%). STM manages the Hu’u Project, a copper exploration project operating under a 7th Generation Contract of Work (CoW) located in Hu’u Subdistrict, Dompu Regency, West Nusa Tenggara Province, Indonesia.

The CoW area also contains geothermal resources. To explore this potential, STM established its affiliate company, PT Sumbawa Timur Geothermal, which has received a Geothermal License (IPB) from the government. STM continues its journey toward realizing its vision of becoming a world-class copper mining operation powered by renewable energy.

For more information, please contact the STM Communications Team.

PT Sumbawa Timur Mining (STM), the holder of the Contract of Work for the Hu’u Project (copper mineral exploration project) in Dompu Regency, West Nusa Tenggara, conducted a series of socialization of mineral performance achievements in 2023 and mineral work plans in 2024 to the Central, Provincial and Regency Governments. The socialization activities began in Mataram, the capital of NTB province on 30 April 2024, continued on 7 May 2024 at the Dompu Regent Hall and closed with a meeting with the Minister of Energy and Mineral Resources in Jakarta on 13 May 2024. All were attended by regional leaders, relevant agencies and institutions.   

“This is our initiative, as a form of information transparency to the government. We hope that STM’s investment and exploration efforts at the Hu’u Project receive full support and can run smoothly,” said Yan Fuadi, STM’s Head of Mining Engineering, on Tuesday (5/7).

2024 Work Plan 

Regarding STM’s 2024 work plan, Yan explained that STM will drill approximately 30 drill holes for the purposes of Area Sterilization, Mine Hydrology, Mine Geotech, Resource and Brown Field Exploration. To support exploration drilling activities this year, STM will utilize 5 units of drilling Rigs, including the use of Horizontal Drilling Rig to support Geotechnical studies.

“This year we will continue the geotechnical & hydrological study to increase the amount of data and sharpen the technical analysis as a continuation program that has been started last year, including the horizontal drilling method that will be carried out to support this geotechnical study,” he said.

The Onto deposits, as these mineral deposits are known, offer technical challenges including geological complexity and deposits located 400-600 meters below the earth’s surface. The depth of the Onto deposits makes underground Block Cave mining the only viable mining method for future production operations. The Onto deposits also intersect with geothermal systems, with temperatures ranging from 80 to 110 degrees Celsius, forcing STM to apply appropriate and sophisticated technology to reduce the temperatures and make it feasible for humans to work underground in the future.

In addition to focusing on Geotechnical and Hydrogeological studies, Yan said STM will also carry out other important activities this year, such as increasing the confidence in Onto’s mineral resources and completing the Brown field and regional exploration program to look for other prospects besides the Onto deposits. There are also other planned exploration support activities to be carried out this year, including drill site preparation and rehabilitation, helicopter activities, supporting infrastructure development, and maintenance of exploration access roads.

2023 Work Performance 

Throughout 2023, PT Sumbawa Timur Mining has conducted engineering (technical) studies in the Pre-Feasibility Study stage. The activities carried out include completing the exploration drilling interval to increase resource confidence, conducting geological, geohydrological (Pumping test hole), geochemical and geotechnical studies by operating 7 rigs in the exploration area.

On the same occasion, STM also conveyed the progress of the preliminary survey and geothermal exploration assignment, with the results showing the potential for electricity generation reaching 60 MW. Yan said, “If it is realized, STM will be the only copper mining company powered by its own geothermal power source. With the support of electricity from renewable energy, it will certainly contribute to efforts to reduce carbon emissions in Indonesia.” STM is currently participating in the limited tender process for WKP Hu’u Daha to obtain a Geothermal License from the Directorate General of New and Renewable Energy (EBTKE).

STM also conducts regular and more coordinated environmental management and monitoring, and implements Community Development programs.

Community Relations Manager, Ulya Defretes said that STM also ensures the sustainability of environmental protection activities, mining safety, human resource development, and community development and empowerment. The company will continue its Impactful Community Development activities with three program focuses, namely strategic partnerships, village participation program, as well as donations and sponsorships.

“Some of STM’s flagship empowerment programs in 2023 are cataract surgery and eye examinations with beneficiaries reaching 3,211 patients. There are also 100 scholarships for D1 Heavy Equipment Engineering students, 40 Prestasi Scholarships for Dompu Regency students of various majors, and completion of the basic literacy program for 148 learning citizens,” he said.

Regarding donations and sponsorships, Ulya explained that it is done by considering proposals from residents and the benefits of the program. The community development and empowerment program covers health, education, economic empowerment, institutional, infrastructure, environmental, social and cultural sectors.

“We want to continue to promote the involvement of all stakeholders in our activities and make a positive contribution to regional development in West Nusa Tenggara. We hope that the ongoing cooperation with the local government and the people of West Nusa Tenggara can be even closer to achieve sustainable development,” he ended.

* * *

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%) – a subsidiary 100% owned by Vale Holding B.V., and PT Antam Tbk (20%). STM is the owner of the 7th generation Hu’u Project Work Contract (KK) and has completed the Preliminary Survey and Geothermal Exploration Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The Contract of Work area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, STM is carrying out mineral exploration activities to realize its vision of becoming a world-class copper mining operation powered by renewable energy.

 For further information, please contact Sumbawa Timur Mining Team

Mataram, 21 February 2024 – PT Sumbawa Timur Mining (STM) and the West Nusa Tenggara Environmental and Forestry Agency (DLHK NTB) have signed a Memorandum of Understanding (MoU) today. The purpose of this MoU is to support and accompany STM in implementing a forest protection program within the Forest Area Utilization Agreement (PPKH) for the period 2024-2025. Currently, STM is conducting mineral exploration in the Dompu Regency, known as the Hu’u Project.

The MoU aims to support STM in fulfilling its responsibilities as the holder of PPKH (Forest Area Utilization Permit) based on Minister of Environment and Forestry Decree Number: SK.708/MENLHK/SETJEN/PLA.0/6/2023.

Sustainability & External Affairs Manager of STM, Razky Akbar, stated, “We extend our gratitude to DLHK NTB for their support and guidance in this matter. Furthermore, we are committed to diligently implementing this forest protection program, and this MoU signifies the synergy between PT STM and DLHK of the NTB Province in preserving the forest, particularly within STM’s operational area and the NTB Province in general.”

The forestry program covered by the MoU includes forest patrols and surveillance in the STM PPKH area, forestry regulation awareness campaigns, wildfire prevention, the NTB Green program, installation of forestry information boards, as well as assistance and supervision of STM’s forestry programs.

The MoU signing was attended by representatives from DLHK NTB, the Department of Sustainability, and Government Relations at PT STM. The event concluded with the endorsement of the MoU between the Morowali and Toffo Pajo Soromandi (Topaso) Forest Area Strengthening Agency (BPKH).

Forest Management in the STM PPKH Area

STM has been the holder of PPKH since 2010. PPKH is essential as it grants permission to enter forest areas for mineral exploration activities. The goal is to strike a balance between forest conservation and development. “Striving for a balance between forest conservation and operational mineral mining development is one of our primary goals. As a result, we have implemented a series of sustainable forestry management practices with a comprehensive approach since acquiring the Forest Area Utilization Agreement (PPKH),” explained Razky. This forestry management encompasses land opening planning, tree management system implementation, forest seedling care, post-land opening rehabilitation, and reclamation activities.

Over the past 5 years, the post-land opening rehabilitation and reclamation efforts have successfully planted over 13,500 trees. The planning for these activities begins with technical design documents prepared by STM’s forestry team. These plans serve as a guide to ensure rehabilitation objectives are met.

In addition to the forestry management practices, STM conducts routine assessments to mitigate the risk of fallen trees among mature plants within work areas or near supporting facilities. The physical strength of trees is influenced by factors such as age, damage caused by pests and genetics, and weaknesses in internal stem structures. This means that trees may not be as robust as they appear. STM utilizes a resistograph to provide comprehensive information about tree conditions. This tool can detect internal damage without the need to fell or harm the tree. This information enables STM’s forestry team to evaluate and monitor the condition of trees around the camp and operational facilities.

“May today’s signing of the MoU further enhance STM’s efforts and achievements in managing its PPKH area in tandem with the growth of the Hu’u Project,” concluded Razky.

–end–

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world class copper mining operation supported by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Dompu, 21 Februari 2024 – PT Sumbawa Timur Mining (STM), the owner of the 7th generation Contract of Work (CoW) for the Hu’u Project in Dompu Regency, West Nusa Tenggara, Indonesia, officially closed the series of activities for the National Occupational Safety and Health Month (K3) 2024 through a ceremony held on Wednesday (21/02) at the STM new staging area in Hu’u District. 

The Closing Ceremony of the K3 Month was attended by representatives of the NTB Provincial Manpower and Transmigration Office (Disnakertrans), Head of the Dompu Regency Disnakertrans Miftahul Su’adah, STM Chief of Mine Operations, employees, and representatives of all contractors involved in the Hu’u Project. The event continued with the announcement of the winners of the competitions held during the K3 Month and a workshop on occupational safety delivered by the NTB Provincial Disnakertrans.

From January 12 to February 12, 2024, STM held a series of National K3 Month 2024 activities in the Hu’u Project area. Activities included K3-themed competitions involving STM employees and contractors, education for the community on fire management in the home, and education for school students on safe driving and the dangers of drug abuse. In addition, STM also held a blood donation program for employees and contractors and managed to collect 86 blood bags.

In the closing moment of the K3 Month, the Chief of Mine Operations STM, Yan Fuadi also conveyed several K3 culture implementations in the Hu’u Project that have been carried out by the company so far. The program covers all lines from frontliners to management through K3 training for local and national employees, as well as K3 socialization to the community around the mining area. One of the programs implemented is Stop Work Authorization, a right that every employee must stop work that is seen as unsafe and management guarantees that there will be no consequences from the termination.

“With the implementation of the K3 culture, it is hoped that every employee involved can continue to work safely, return home safely, and all Hu’u Project activities can run smoothly according to the target, in line with this year’s theme of Cultivating K3, Healthy and Safe Work, Maintaining Business Continuity,” said Yan Fuadi.

STM Achieves 6 Million Hours of Work Without a Serious Accident

The closing ceremony of this K3 Month also marks and celebrates STM’s commitment to prioritizing occupational safety, as evidenced by the achievement of 6 million hours of work without LTI (Lost Time Injury) since 2022.

Yan Fuadi stated that this achievement is a valuable thing for the company considering that exploration activities in the mining industry are a high-risk work environment.

“Our top priority during the exploration phase of mining operations is safety. We attach great importance to compliance with strict safety protocols to ensure a safe working environment for all workers involved in the Hu’u Project employees. We are united in maintaining the highest standards, reducing the risk of potential work accidents, and creating a healthy and safe workplace,” he said.

–end–

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world class copper mining operation supported by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Dompu, 18 December 2023 – PT Sumbawa Timur Mining (STM), owner of the 7th generation Contract of Work for the Hu’u Project, Dompu Regency, West Nusa Tenggara in collaboration with the John Fawcett Foundation (JFF), an organization that covers the field of vision restoration and prevention blindness, and the Dompu District Health Service provides free eye health services for people in Dompu District. This service is a manifestation of the company’s concern for the welfare and health of the community around the STM operational area, especially around Hu’u District and the capital of Dompu Regency.

“With this free cataract treatment, we hope that residents who experience eye health problems, especially cataracts, can live their daily lives better and more productively,” said STM Community Relations Manager, Ulya Defretes, in Dompu, Monday (18/ 12).

This free eye health service takes place in two locations, namely Sawe Village Field, Hu’u District (18 – 19 December 2023) and Beringin Field, Dompu Regional Government Office (21 – 22 December 2023). Services provided include cataract surgery, eye examinations, administering eye drops and providing glasses based on examination results. This activity is designed to help people in need, especially in terms of preventing and treating cataracts.

JFF was once again trusted to be the implementing partner by bringing in two Mobile Eye Clinic cars directly from Bali for cataract surgery. A total of 23 medical personnel were also prepared to provide services during the activity.

Ulya explained, over the four days, it is estimated that more than 2000 residents will receive eye examinations and it is targeted that 200 people will undergo cataract surgery in this program. Apart from the general public, this activity is also aimed at students at 4 schools in Dompu Regency. The series of activities carried out range from free eye examinations to eye health education.

“We are committed to contributing to the health and welfare of the community, especially in the STM work area. “This activity makes it easier for people to access quality eye health services,” said Ulya.

 

– finish –

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world class copper mining operation supported by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

 A Form of Responsibility for Open Areas 

Dompu, 29 November 2023: PT Sumbawa Timur Mining (STM), the owner of Hu’u Project Contract of Work in Dompu Regency, West Nusa Tenggara Province, Indonesia commemorates the National Tree Planting Day in Indonesia. The highlight of this commemoration was held on Sunday, November 26, 2023 in the Hu’u Project area, Nangadoro Village, Dompu Regency, West Nusa Tenggara. The event involved STM employees and contractors, who managed to plant 300 trees. 

Apart from the tree planting agenda in the Project area, STM also collaborated with the Dompu Regency Environmental Office (DLH) to celebrate the Tree Planting Day together with the community on November 27, 2023. In this activity, 100 tree seedlings were successfully planted along Jalan Raya Pajo. Quoted from the website of the Ministry of Environment and Forestry (KLHK), the determination of Indonesian Tree Planting Day refers to Presidential Decree Number 24 of 2008. The decree signed by Indonesian President Susilo Bambang Yudhoyono (SBY) decided November 28 as Indonesian Tree Planting Day.

STM regularly commemorates Tree Planting Day since 2019, supported by a nursery facility with a capacity of 12,500 seedlings in Wadbura and Nangadoro areas. The nursery facility also supports forest management efforts in exploration area, as explained by Razky Akbar, External Relations & Sustainability Manager of STM. “In the process of developing sustainable mineral mines, proper forestry management is required to minimize the impact on forest areas. Since 2017 to 2023, STM has planted totally 13,525 tree seedlings, covering an area of ​​68,1356 hectares spread across 97 locations in the Hu’u Project exploration area. All of the planting aim to revegetate and rehabilitate forests or open land used by exploration drilling that is no longer in use. The trees are also to replace trees in other areas that may be affected,” said Razky.

In general, planting trees is useful for anticipating global climate change, preventing a decrease in environmental carrying capacity, overcoming deforestation, and preventing other environmental damage which results in a decrease in natural productivity and environmental sustainability.

All the participants joining the national Tree Planting Day held by STM seemed enthusiastic. Razky hopes that the involvement of all employees and contractors will inspire good habits. “We hope that the consistent steps we take will provide a good legacy for future generations, as well as fostering an awareness of love for the environment inside all of us,” he said.  

STM Forestry Management

Razky said further that efforts to minimize impacts on forest areas during the construction of mining operations are not only carried out by planting trees, but by adopting sustainable forestry management practices through a comprehensive approach implementation. Forestry management includes land clearing planning, implementing tree management system, caring for forest plant seeds, post-land clearing rehabilitation, and reclamation activities.

STM always strives to return open areas and areas that are no longer used for exploration to their original condition by routinely carrying out rehabilitation, reclamation and revegetation activities as part of this commitment. Planning for these activities begins with a technical design document, prepared by the STM forestry team. This plan then serves as a guide to ensure that rehabilitation goals are well-achieved.

STM collaborates with the Toffo Pajo Soromandi Forest Management Unit (KPH TOPASO) in protecting the forest area of ​​the STM PPKH area. This form of cooperation is stated in the MoU which contains forestry management activities, such as patrolling and guarding mineral and Ex-geothermal PPKH forestry gates, assisting in preventing forest fires, developing forest honey cultivation, and succeeding the Green NTB program. Apart from guarding the PPKH STM area, STM also supports guarding the forest area around the RTK 65 area. KPH TOPASO also helps in providing outreach and assistance to the community regarding the management and guarding of forest areas.

In addition to the above activities of forestry management, STM also carries out routine assessments as a form of mitigating the risk of trees falling on mature plants in work areas or around supporting facilities. A tree’s physical strength is influenced by several factors including age, damage caused by pests and genetics, and weak internal trunk structure. This means that the tree may not be as strong as it seems. STM uses a resistograph to provide comprehensive information about the condition of the tree. This tool can show whether there is internal damage without having to cut or damage the tree. This information allows the STM forestry team to evaluate and monitor the condition of trees around camps and operational facilities.

All forestry management efforts undertaken by STM are solely to ensure that forest preservation can be taken up side by side with the development of mining operations. 

* * *

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Dompu, 1 November 2023:  PT Sumbawa Timur Mining (STM), the owner of Hu’u Project 7th generation Contract of Work (CoW) in Dompu Regency, West Nusa Tenggara Province handed over Beasiswa Prestasi to 40 outstanding students from Dompu. The scholarship awarding confirms the company’s commitment to supporting education and human resources development, particularly in Dompu. 

“We hope this scholarship will encourage the beneficiaries to make higher achievements, as well as inspire other students to strive for their best achievements,” said Community Relations Manager of PT STM, Ulya Defretes during the awarding ceremony of Beasiswa Prestasi at Dompu Regent’s Office, Wednesday (11/1).

The awarding ceremony of PT STM’s Beasiswa Prestasi was symbolically opened by the Regent of Dompu, H. Kader Jaelani. Head of Dompu local Education Office and families of the scholarship beneficiaries also attended the ceremony. Parents of the scholarship beneficiaries were deliberately invited to attend the awarding in order to strengthen the relationship between PT STM and the parents, as well as to show pride and gratitude for the achievements of the scholarship recipients. 

The scholarship beneficiaries come from various study programs, which are divided into two main categories, namely the engineering and non-engineering programs. The engineering programs include mining engineering, civil engineering, environmental engineering, logistic engineering, electrical engineering, industrial engineering, geodetic engineering, informatics engineering, and medical laboratory engineering. Meanwhile, the non-engineering programs include international relations, accounting, agro-eco technology, nutritional science, mathematics, management, public health, soil science, nursing, and environmental science. 

They are studying at 18 state and private universities located in West Nusa Tenggara Province and outside the province, such as Mataram University, Indonesian Islamic University, Brawijaya University, Bogor Agriculture Institute, Diponegoro University, Indonesian Education University, Muhammadiyah University of Malang, Muhammadiyah University of Mataram, and some other universities.

Before receiving the scholarship, the students previously had gone through a strict selection process starting on July 24 until September 29, 2023. The selection process involved 97 students who had to undergo stages of administrative selection, basic ability test and case study, interview test, and final selection that selected 40 outstanding students. 

Ulya explained that the number of this year’s Beasiswa Prestasi beneficiaries had increased more than two times.  Last year, the scholarship beneficiaries were 19 students. This year, it increased to 40 students. The higher number of Beasiswa Prestasi program beneficiaries is also based on the input from the local government of Dompu Regency. 

“STM apprehends the input and tries to realize the aspiration. We are grateful for the support of Dompu Regent and his staff, and also other parties that have paid attention to this program. I believe that the support from all parties will encourage the best 40 students to face a brighter future,” he said.

* * *

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Lombok, September 16th 2023 – PT Sumbawa Timur Mining (STM), owner of the Hu’u Project 7th generation Contract of Work (CoW) in Dompu Regency, West Nusa Tenggara is holding a series of seminars and mini workshops in the cities of Mataram, Makassar and Yogyakarta. This event is targeting students from Dompu Regency who are pursuing higher education in the cities. The aim of this activity is to provide students with broader insight about various opportunities and career choices after they graduate from college.

“This activity is facilitated by the Persolkelly Human Resources (HR) development agency. The facilitators help develop students’ soft skills as preparations for entering the business world or the world of work,” said PT STM Principal Communication, Cindy Elza, on Saturday (9/16).

In addition to providing career insight, the company will also use this event to disseminate information regarding the Hu’u Project. This will provide students with a deeper understanding of various aspects of the Hu’u Project, which is still in the exploration phase.

This activity was first held in Mataram City on Saturday, September 16 2023. Similar activities will be held in Makassar City on October 5 2023, and Yogyakarta in November 2023. 

In Mataram, the seminar and mini workshop ‘Yang Muda Yang Siap Kerja’ (Young People Ready to Work) takes place at the Aston Inn Hotel , where 50 students from Dompu take part in this activity.

Cindy explained that this socialization was a form of disclosure of company information.

“We want students to get the right information regarding the Hu’u Project. The information provided includes a general overview of exploration and various aspects and their impact on society, including aspects of employment, environmental management, business opportunities and community development,” he said.

According to her, these students will soon enter the competitive labor market. There are also those who want to return to their hometown and are very interested in joining STM.

“However, as an educated group, students need to understand that the ratio between the availability of job opportunities and the number of job seekers is not always balanced. We hope that after returning from this activity, students will have increased insight into the various career options they can choose after graduating from college, as well as how to achieve them. “In this way, they will be better prepared to compete and develop their abilities in whatever industry they are interested in,” she said.

The expert from Persolkelly, Christina Nangoi, added that this provision begins by helping participants understand their goals and career choices that can be taken based on their respective interests and abilities. Then proceed with helping participants understand the three main skills that workers need to have, namely in terms of character, functional and technical. 

“We guide participants to create self-marketing tools in the form of concise and attractive personal resumes. Apart from that, facilitators also share tips and tricks related to the use of digital technology in accessing various information about job opportunities and conducting interviews,” she said.

— finish —

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

 

STM strives to improve the quality of mining industry education in Dompu Regency with Diploma 1 heavy duty scholarships at Akademi Komunitas Olat Maras (AKOM)

Sumbawa, 14 August 2023: PT Sumbawa Timur Mining (STM), a joint venture between Eastern Star Resources Pty Ltd and PT Antam Tbk, together with the Provincial Government of Nusa Tenggara Barat (NTB) announced today a pilot project to launch a new scholarship program, aimed at fostering talent and providing educational opportunities in the field of heavy mining equipment operation.

With a commitment to sustainable development and community empowerment, PT STM recognizes the importance of investing in education and developing skilled professionals who can contribute to the advancement of the mining industry. Through this scholarship program, the company aims to identify and support aspiring individuals who have a passion for heavy equipment engineering and a desire to contribute to the growth of the mining sector.

Bede Evans, President Director of PT STM said that the scholarship program is one of the activities the company is undertaking to help develop the quality of human resources, especially in the field of education, in the Dompu region. 

“We believe that fostering local talent is crucial to the long-term success and sustainability of the mining sector. Through this scholarship program, we aim to promote diversity and inclusion within the industry, empowering individuals from various backgrounds to pursue a career in heavy equipment engineering and contribute to the advancement of the mining sector. This scholarship program will fund the education of 100 Dompu students as they undergo studies in heavy equipment engineering. When they complete their studies, they will be equipped with the skills and knowledge needed to work in the mining industry or any other related industries,” said Mr Evans.

The scholarship program will provide financial assistance and educational opportunities to deserving students wishing to pursue a degree in heavy equipment engineering. The program is open to students from Dompu and its surrounding areas. Candidates for the scholarship are selected based on exceptional academic performance, a strong work ethic, and a genuine interest in the mining industry. 

Candidates will be selected by Badan Riset dan Inovasi Daerah NTB (BRIDA) and Akademi Komunitas Olat Maras (AKOM), a vocational school that offers a diploma program (D1) in Heavy Equipment Engineering. For prospective participants who are interested, they can look for further information from BRIDA and AKOM.

In addition to financial support, the scholarship program will also open up opportunities for participants to have a career in various companies that require experts in the field of heavy equipment, whether in STM or other companies. These initiatives will enable the recipients to gain practical experience, enhance their technical skills, and forge valuable connections within the mining industry.

“PT STM’s commitment is to benefit the human resources in the Dompu region so that the local community can be part of the development of the Hu’u Project,” Mr Evans continued.

This scholarship program is one of PT STM’s commitments to enhance education in NTB. Previously, the company has provided scholarships to students in Hu’u district, mentoring programs for teachers, and eco-friendly farming education for school children. In addition to the special scholarship for heavy equipment, PT STM also provided 40 scholarship beneficiaries this year. Achievement scholarships are awarded to outstanding students with high GPA scores from Dompu Regency. These scholarship recipients are studying at public and private universities and are prioritized for those studying majors related to mining and its supporters.

In recognition of its education-focused programs, the Corporate Forum for CSR Development (CFCD) and the Indonesian Ministry of National Development Planning gave two awards to PT STM in the Sustainable Development Goals Award (ISDA) 2022 event. The two awards were the Gold Award for Illiteracy Program and the Gold Award for Education Quality Improvement Program.

* * *

About PT Sumbawa Timur Mining – PT STM 

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mining operation supported by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

 

Dompu, 24 July 2023 – PT Sumbawa Timur Mining (STM), the owner of the 7th generation Contract of Work for the Hu’u Project in Dompu District, West Nusa Tenggara, demonstrated its commitment to work safety by achieving 4 million hours of accident-free work (4 million hours LTI Free).

President Director of PT STM Bede Evans stated that this achievement is a valuable thing for the company considering that exploration activities in the mining industry are a high-risk work environment.

“Safety is our top priority in the exploration phase of mining operations. We strictly adhere to strict safety protocols, ensuring a safe working environment for all employees. Together, we strive to maintain the highest standards, reduce potential risks, and foster a safe and healthy workplace,” he said.

Bede explained that a Lost Time Injury or LTI is hours wasted due to a workplace accident that results in an employee being injured, or experiencing functional impairment so that the worker is unable to return to work. This important achievement reflects the efforts of STM, its employees, and contractors to always carry out a full commitment to workplace safety.

Awards for Employees and Contractors

To strengthen awareness of work safety in the company’s internal environment, PT STM also gives appreciation to employees and contractors or company vendors who contribute to the application of work safety principles in the company environment.

“There were 4 company vendors and 3 employees who were awarded by PT STM management for their commitment to the implementation of work safety at PT STM,” Bede Evans explained.

The four vendors who received awards from STM are Garuda Muda Elektrik (The Best Local Contractor of Safety KPI Record), Indodrill Indonesia (The Best National Contractor of Safety KPI Record), Coates Hire Indonesia (The Most Safety Progressive Contractor), and Technical Drilling Department (The Most Dedicated Contract Owner – Field Leaders Department).

Bede Evans explained that safety has become even more significant for PT STM this year, following the company’s plan to focus on the test pumping bore program (TPBP).

“This activity aims to collect groundwater data and thermal conditions in the earth’s surface, which play an important role as one of the data references in building underground designs that are safe for all,” he explained.

Meanwhile, PT STM Principal Communication Cindy Elza stated that PT STM’s work safety commitment is also shown by the awarding of the company from the Ministry of Manpower, Directorate General of Manpower Supervision Development and Occupational Safety and Health in June 2023.

“The two categories of awards given to PT STM are the Zero Work Accident Award and the Covid-19 Prevention and Countermeasure Program Award in the Workplace,” she explained.

–end–

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

PT Sumbawa Timur Mining Waste Bank Empowers Communities

PT STM commemorates World Environment Day with the spirit of reducing plastic pollution through the community empowerment program ‘Waste Bank’

Sumbawa, 5 June 2023: PT Sumbawa Timur Mining (STM), the owner of Hu’u Project Contract of Work  in Dompu Regency, West Nusa Tenggara Province, Indonesia also celebrated the World Environment Day on June 4th 2023 with the theme of reducing plastic pollution. PT STM invites all stakeholders to reduce the use of single-use plastic and recycle it.

In line with the theme of World Environment Day celebrations celebrated by PT STM, one concrete manifestation of the spirit of reducing plastic pollution is through the ‘Waste Bank’ community empowerment program. The waste banks fostered by STM include 8 waste banks units in Hu’u District and 1 main waste bank in Hu’u Village.

“People collect plastic and receive rewards for every kilogram of plastic collected. From January 2022 to April 2023, the main waste bank has succeeded in collecting more than 23.8 tons of plastic waste with an economic value of IDR 43,446,350. This activity reduces the amount of plastic waste that is usually thrown onto Cempi Beach. “So the benefits can be twofold, namely we can support a cleaner environment and residents can gain financial benefits,” said PT STM President Director Bede Evans.

PT STM’s World Environment Day celebrations were also centered in the Nangadoro area by carrying out plogging activities (picking up litter while walking) around the New Staging area, Jl. Lintas Lakey, Hu’u District, Dompu Regency, NTB. This activity is a reminder of the spirit of caring for the environment for STM. 

Plogging Activities Around The Hu’u Project Area

This plogging activity began in Finish Hamlet, Hu’u Village, Hu’u District, Dompu Regency, West Nusa Tenggara (NTB) Province on Friday (2/6/2023) morning. This clean-up movement was attended by the Head of Mining Operation (Kepala Tehnik Tambang / KTT) STM, Hendra Sebayang, contractors of STM, and other STM staff. 

Hendra Sebayang said that the movement to clean up the environment from plastic waste is a form of the company’s commitment to protecting the environment. Moreover, the company is committed to carrying out sustainable mining, so environmental management is a priority in maintaining the balance of the ecosystem around the exploration area. “Moreover, this area is our daily route,” he said. Hendra also hopes that this plastic beat movement will not only be a ceremonial activity carried out at certain times. But will remain sustainable, thereby giving rise to collective awareness.

Meanwhile the villagers and the head of the villages were also involved in this plogging activity. The Head of Hu’u Village, Mujahidin expressed his appreciation to STM who always pays attention to Hu’u Village, including the environmental cleanup program. He hopes that this clean-up movement will raise collective awareness to protect the environment, “PT STM always provides attention and support for the progress and empowerment of the Hu’u community. This support must be utilized properly for mutual progress,” he said.

* * *

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM is the manager of the Hu’u Project through the 7th generation Contract of Work (KK) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The area of KK is 19,260 hectares, covering Dompu Regency and Bima Regency. Currently, PT STM is carrying out mineral exploration activities to create a world-class copper mine supported by geothermal renewable energy.

For further information, please contact Sumbawa Timur Mining Team

PT STM successfully completes sub-2000m drill hole using helicopter-mounted drill rig

Sumbawa, June 2023: PT Sumbawa Timur Mining (STM), which is currently conducting mineral exploration in the Hu’u area, Dompu Regency, announced that it has reached a record drilling depth. The drilling process, which took 3.5 months, successfully reached a depth of 2,050 meters on March 19, 2023. This is an important milestone in PT STM’s exploration activities.

PT STM’s President Director, Bede Evans shared one of the challenges, “PT STM is one of a small number of operators using the Indodrill ID2000 rig, a versatile and robust drilling rig that can be used in remote locations and challenging topographic and downhole conditions.”

PT STM’s exploration drilling is supported by PT Indodrill, a member of The Global Drilling and Exploration Group (GDE Group) which provides high quality drilling services to the minerals, energy, civil, environmental and agricultural industries.

Operations Manager of PT Indodrill Indonesia, Matt Glossop, said, “This is the second sub-2000 meter drill hole we have successfully completed at the Hu’u Project and we will continue to work with PT STM to continue their deep hole drilling program.”

PT STM Exploration Manager, Galih Perdana said, “This is the deepest hole at the Hu’u Project optimized to obtain rock characterization data for geological and engineering studies. Core samples from this deep borehole will provide important data that will allow us to understand the rock characterization data for geological and engineering studies.

* * *

About PT Sumbawa Timur Mining – PT STM 

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100% owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM is the owner of the 7th generation Hu’u Project Contract of Work (CoW) and Geothermal Preliminary Survey and Exploration Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The Contract of Work area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision of becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Some of the company’s energy efficiency initiatives have reduced carbon gas emissions

Sumbawa, May 2023: PT Sumbawa Timur Mining (STM), the owner of Contract of Work of the Hu’u Project in Dompu Regency, West Nusa Tenggara Province, Indonesia, is implementing energy efficiency management as part of its commitment to sustainable mining practices. PT STM recognizes the importance of environmental management and monitoring efforts to maintain a balanced ecosystem around the exploration area.

President Director of PT STM, Bede Evans said that any development, for whatever purpose, will potentially have impacts on the environment. PT STM is therefore committed to ensuring that work at the Hu’u Project is carried out to high environmental standards. 

“We see ourselves as part of the community and as contributors to progress and prosperity. Our consistent efforts to protect the environment around our exploration areas demonstrate the high priority we place on responsible and sustainable mining practices,” said Bede Evans.

Among the energy efficiency management strategies that PT STM has implemented include the use of solar panels for supplementary power sources and replacement of lamp types for lighting efficiency. In its energy efficiency efforts, the company noted that PT STM’s use of solar panels has reduced carbon emissions by 75 tons of CO2eq.

Evans said that although PT STM’s activities at the moment are still limited to exploration and mining activities, the company’s energy efficiency efforts have been implemented.

Water Management and Air Quality

Meanwhile, to maintain surface water quality, PT STM has taken various measures including strict monitoring of water usage. Every three months, various tests are conducted at 38 separate surface water, groundwater and seawater locations to determine the water quality at these test points.  Water quality monitoring, testing and analysis are conducted by independent and accredited laboratories. 

PT STM also runs a Waste Water Treatment Plant (WWTP) and the fuel storage site, effluent storage site, and generator site are protected by impermeable barriers to safeguard the surrounding areas from contamination. While these measures are in line with a comprehensive approach to maintaining water quality, a long-term assessment of the Hu’u Project’s water vulnerability was also conducted and this will inform the development of a more in-depth clean water support program.

In terms of air quality management and monitoring, PT STM has undertaken several measures such as irrigating the helipad area, routinely maintaining emissions from operational equipment and vehicles, and undertaking necessary dust abatement measures. PT STM also regularly monitors and measures the concentration of air pollutants such as heavy metals and particulate matter generated by exploration activities to maintain air quality in accordance with recognized environmental standards.

The native flora and fauna of the Hu’u Project are also important for their benefits to the local community. To ensure minimal impacts of mining activities on flora and fauna, PT STM has a rigorous program to mitigate the impacts of land clearing and reclamation by preserving topsoil during these activities and using the preserved topsoil as part of the revegetation process. The success of soil rehabilitation and revegetation is constantly monitored, including the use of surveillance cameras within rehabilitation areas to ensure activities do not impact animal life in the project area.

Evans said, “As we plan to develop the Hu’u Project into a world-class copper mine, we recognize the need to apply strict environmental measures and standards in all that we do.  This includes applying best practices and doing the things we should be doing, even if they are not required by law. We are grateful that our efforts to protect the environment at the Hu’u Project have been recognized by relevant agencies such as the West Nusa Tenggara Energy and Mineral Resources Agency, the Dompu Environmental Agency, and the Bima Environmental Agency.”

* * *

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM manages the Hu’u Project through a 7th generation Contract of Work (CoW) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The KK area is 19,260 hectares, covering Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

The public is urged to be alert and reconfirm to STM

Sumbawa, April 2023: PT Sumbawa Timur Mining (STM) advises the public to remain cautious of individuals or entities claiming to be affiliated with or having working relationships (directly or indirectly) with STM and its parent company (in this case, Vale) concerning the mineral mining exploration activities currently conducted by STM in Dompu and Bima Regencies, West Nusa Tenggara Province, based on a Contract of Work and other relevant permits (the Hu’u Project).

As may be known, various forms of communication materials have circulated widely among the public, including letters, handbooks, the use of logos, announcements (through social media or other means), which falsely appear to represent or have connections with the Hu’u Project. These communications relate to the procurement of goods and services, workforce recruitment, and land acquisition for the Hu’u Project.

In relation to the above, the management of STM has identified several companies that are suspected, and unlawfully, misrepresent STM (including Vale) by disseminating false and irresponsible information to the general public. The companies in question include PT Abdi Karya Usaha Raya (AKUR), STM Vale Hu’u – Vale Global Group (STM VH VGG), PT Main Cone Vale Global, PT Vale GG, and PT SVH – VGG.

“We remind the public that the mentioned companies have no direct or indirect affiliations with the Hu’u Project, STM, or Vale,” stated Cindy Elza, Principal Communication of STM.

The management of STM also affirms that STM is the sole holder of a Contract of Work legally recognized by the Government (both Central and Regional) to exclusively carry out the development of the Hu’u Project.

“We urge the public not to easily believe in any form of investment offers related to the Hu’u Project that do not originate from official sources of STM. Be sure to verify any offers, either by contacting STM or through other means,” Cindy informed.

Therefore, Cindy noted that STM provides a helpline for the public who wish to confirm or report fraudulent activities misrepresenting STM and Vale, through the email address infoSTM1@vale.com or by contacting the STM Community Relations Team in Project Hu’u Staging at Hu’u District.

In conclusion, Cindy added that “STM will not hesitate to use all available legal measures under applicable laws to protect the legal interests of STM against any individuals, companies, or entities intentionally and unlawfully creating an impression among the general public that their business activities are related or associated with the development activities of the Hu’u Project, which is currently legally conducted by STM and its parent company (Vale).

* * *

About PT Sumbawa Timur Mining – PT STM 

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Dompu, 23 March 2023 – PT Sumbawa Timur Mining (STM) provided assistance to fulfill the clean water needs of residents of Marada Village, Hu’u District in the form of water well and facilitation of the formation of clean water management institutions so that the availability of clean water for residents can be managed properly and sustainably. 

The handover of the clean water facilities was conducted by Didit Susiyanto, representing the management of STM, to the District Chief of Hu’u, Muhammad Iswan, SKM at the borehole location in Ompu Mbeka Hamlet, Marada Village, Hu’u District, on Wednesday (22/3/2023). Also present were the Head of Marada Village, Abdullah Idris, the Clean Water Manager of Marada Village, Sudirman, along with local youth leaders and residents. 

Didit Susiyanto stated that the handover of the clean water well facility is a manifestation of STM’s commitment to growing and developing alongside the community through its empowerment programs.

“We hope that the clean water well facilities can address the issue of clean water access for the residents of Marada Village. Now, water is readily available, and the infrastructure is in place. In the past, people might have had to travel quite a distance to collect water, but now it is distributed to their homes,” he said. 

He expressed hope that through the construction of these clean water facilities, the community can show their support for the presence of STM, enabling the company to further empower the local residents and utilize the shared potential.

Meanwhile, Hu’u District Head Muhammad Iswan, SKM welcomed the handover of clean water facilities to the residents of Marada Village and stated that STM has made a significant contribution to the empowerment and development of Hu’u in various areas.

“PT STM’s contribution to health, education, empowerment, and public facilities has been quite a lot done by PT STM. Likewise in the field of agriculture with environmentally friendly plants (organic plants). I even participated in the harvest together in Daha yesterday,” he said.

Head of Marada Village, Abdullah Idris, on the other hand, expressed his gratitude and thanks because STM’s assistance has made clean water accessible to the residents. The water is now directly distributed to each household, which is a form of care by the company after witnessing the difficulties the Marada residents faced with clean water following the damage to the water source pipes during the floods in early 2021.

He also urged the residents to continue supporting STM so that it can continue its activities and empowerment programs. “In Marada, there is no more water scarcity. This is extraordinary. Unlike before, where one water tank was shared by the entire village,” he said.

The clean water provided by STM is managed by the Marada Village government through an institution established by the village government. The water is directly supplied to the residents’ homes and is equipped with water meters. Residents are charged Rp. 20,000 per household (KK) for maintenance and incentives for the staff. This cost is much lower than when based on water consumption.

–End–

 About PT Sumbawa Timur Mining – PT STM 

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Content Significant Copper and Small Amount of Gold

Jakarta, 21 April 2022 – PT Sumbawa Timur Mining (STM) announced today a newly concluded mineral resource estimate of the Onto copper-gold deposit in Nusa Tenggara Barat Province. The mineral resource estimate, which was completed in December 2021, reported a total 2.1 billion tonnes (Bt) with each ton containing 0.86% of copper and 0.48 gram of gold. Details of these updated mineral resources estimated as follows: total Indicated mineral resource of 1.1 billion tonnes (Bt) @ 0.96% Cu and 0.58 g/t Au and a total Inferred mineral resource of approximately 1.0 Bt @ 0.7% Cu and 0.4 g/t Au.

The first public announcement of the Onto Deposit mineral resource estimate in December 2019 reported a total Inferred mineral resource of 0.76 Bt @ 0.93% Cu and 0.56 g/t Au and a total Inferred mineral resource of 0.96 Bt @ 0.87% Cu and 0.44 g/t Au. This represents an increase in the size of the Onto deposit of 0.4 Bt or equivalent to >20% since the announcement of the first resource estimate.

The Onto deposit is part of STM’s Hu’u Project, which is a 7th generation Contract of Work (CoW) entered into with the Government of Indonesia on 19 February 1998 located in Dompu and Bima Regencies in Nusa Tenggara Barat. STM is majority owned (80%) by Vale S.A., through Eastern Star Resources Pty Ltd, and Antam Tbk (20%).

Bede Evans, President Director of STM said, “This latest mineral resource estimate strengthener view that the Onto deposit has the potential to be developed into a world-class copper mining operation. The increase in the Onto mineral resource by 0.4 Bt is the result of the effort, support and commitment of the Hu’u Project team over the last two years. This provides the STM shareholders and the STM team with cautious optimism as we enter into more advanced stages of project development .”

STM has conducted exploration activities within the Hu’u Project CoW since 2010. The mineral resource estimate is based on 74 holes, with a total length of 74,130 meters, drilled into the Onto deposit. Drilling will continue in 2022 and beyond to support studies to further define the size, extent and characteristics of the mineral resource and provide input to engineering studies. In total, STM has completed 108 drill holes (115,591 meters) within the CoW (at Onto and other prospects) since exploration began in 2010.

Mr Evans continued, “Whilst we are very pleased to report an increase of the Onto deposit mineral resource, much work remains to be undertaken to assess technical, environmental, social and financial factors as part of our ongoing feasibility studies. Ultimately, it is our hope that these feasibility studies will define a technically and economically viable mining operation for STM to take into further development.”

Hashari Kamaruddin, Director of STM, reaffirmed his confidence in the Hu’u Project, “I am very pleased with the progress of the Hu’u Project and the new mineral resource statement announced today. The strong collaborative relationship between the STM shareholders and the solid support from the Government of Indonesia and Government of West Nusa Tenggara Province gives us confidence that the Hu’u Project has the potential to be a significant mining operation in Indonesia.”

STM is currently undertaking feasibility studies aimed at further mineral resource definition and to assess hydrogeological, geothermal, and geotechnical characteristics of the deposit. Several technical challenges need to be overcome as part of the feasibility studies in order to confirm that the Onto deposit and Hu’u Project can be developed into a world-class underground mining operation.

*****

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM is the manager of the Hu’u Project through the 7th generation Contract of Work (KK) in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The area of KK is 19,260 hectares, covering Dompu Regency and Bima Regency. Currently, PT STM is carrying out mineral exploration activities to create a world-class copper mine supported by geothermal renewable energy.

For further information, please contact Sumbawa Timur Mining Team

 

Jakarta, Indonesia: 22 October 2020. PT Sumbawa Timur Mining (STM or the Company) announces the assay results from VHD096; a 2,042.72m vertical drill hole into the Onto deposit. The assay results confirm that the Onto deposit extends >500m below the previously-defined depth of mineralization. With assay results having successfully undergone comprehensive quality assurance/quality control processes, STM is pleased to report a 1,594.7m intercept grading @ 1.00% Cu and 0.40g/t Au. This includes an outstanding intercept of 100m grading @ 5.99 % Cu and 1.11 g/t Au.

On 19 February 2020, the Company announced the discovery of the Onto copper-gold deposit, a world-class discovery that positions the Company to be a leading copper producer in Indonesia. STM is the owner of the Hu’u Project 7th generation Contract of Work (CoW) in Nusa Tenggara Barat Province (Indonesia). The Company is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%).

President Director of STM, Mr Bede Evans, emphasized the Company’s excitement with the results. “We are extremely enthused by the results from VHD096. It was a challenging drill hole and was achieved through the hard work of our dedicated staff and contractors. We’re very much now focused on assessing the opportunities presented by these results”.

Coinciding with the release of the results from VHD096, the Company also received impressive assay results from VHD091 (a 1,420.2m drill hole into the south-west part of the deposit from the same drill pad). VHD091 intercepted 1,010.2m grading @ 1.11% Cu and 0.84 g/t Au. This includes an intercept of 318.0m grading @ 1.81% Cu and 1.32 g/t Au.

STM Vice-President Director, Mr Bronto Sutopo, reaffirmed the excitement of STM and its shareholders, “The results from VHD096 and VHD091 present numerous opportunities for STM. We are encouraged by the strong collaborative relationship developed with the Government of Indonesia and believe these results provide a solid foundation for the continued development of the Hu’u Project.”

The significance of the Onto deposit and Hu’u Project to the mining industry in Indonesia was recently reflected with STM being awarded Best Exploration Expenditure, Best Discovery and Best in Class by the Association of Indonesian Geologists (IAGI) during their IAGI Awards 2020. STM Director of Operations, Mr James Connolly, emphasized the significance of the three IAGI Awards: “It’s a proud moment for the STM team and the shareholders to be awarded such prestigious accolades. We thank IAGI for this recognition and thank the STM team, past and present, who contributed to the Onto deposit discovery and the operation of the Hu’u Project.”

STM also confirmed that site operations have recommenced following a temporary suspension of operations due the coronavirus pandemic. As Bede Evans stated, “We undertook a number of measures in March and April 2020 to temporarily slow down our operations. Through our close working relationship with the Dompu Regency government, we are remobilizing our staff and contractors to the Hu’u Project site.”

* * *

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team

Jakarta, Indonesia: 19 February 2020. PT Sumbawa Timur Mining (STM or the Company) is pleased to announce the discovery of the Onto copper-gold deposit, a world-class discovery that positions the company to be a leading copper producer in Indonesia. STM is the owner of the Hu’u Project 7th generation Contract of Work (CoW) in Nusa Tenggara Barat Province (Indonesia). The Company is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%).

STM has been conducting exploration activities within the Hu’u Project CoW since 2010. The Onto deposit was discovered in August 2013 and, since that time, 64 diamond drill holes (equivalent to 61,000m) have been drilled to determine the size, extent and characteristics of the deposit. 

The December 2019 STM resource estimate reports a total Indicated resource of 0.76 billion tonnes (Bt) @ 0.93% Cu and 0.56 g/t Au and a total Inferred resource of 0.96 Bt @ 0.87% Cu and 0.44 g/t Au. This equates to a total of 1.7 Bt @ 0.89% Cu and 0.49 g/t Au. In addition to these resources, an exploration target of 0.6-1.7 Bt @ 0.2-0.7% Cu and 0.1-0.3 g/t Au has been defined surrounding the resource. STM will continue diamond drilling within and surrounding this Onto deposit to determine the margins and depth extent of the mineralisation.

STM confirmed the Company’s enthusiasm with the Onto discovery. President Director of STM, Mr Bede Evans, stated “The Onto deposit discovery demonstrates the value and opportunity associated with the Hu’u Project. With the project now in the feasibility study in exploration stage, we look forward to advancing the project with the aim of developing a world-class mining operation.” 

The successful conclusion of negotiations on 7 May 2019 with the Government of Indonesia on an Amendment to the CoW provides a basis for the company to continue feasibility study and resource drilling activities. With this CoW Amendment in place, the Company is now committed to confirming the technical and economic feasibility of an underground block cave mining operation.

STM Vice-President Director, Mr Bronto Sutopo, reaffirmed the commitment of STM and its shareholders, “The amended CoW in 2019 and the Onto discovery allows the Hu’u Project to advance. We are encouraged by the strong collaborative relationship developed with the Government of Indonesia and believe that a firm foundation is set for the continued development of the Hu’u Project.”

* * *

About PT Sumbawa Timur Mining – PT STM

PT Sumbawa Timur Mining (STM) is a joint venture between Eastern Star Resources Pty Ltd (80%), a 100%-owned subsidiary of Vale SA, and PT Antam Tbk (20%). Established in 1998, STM became the owner of the Hu’u Project 7th generation Contract of Work (CoW) and Geothermal Preliminary & Exploration Survey Assignment in Hu’u District, Dompu Regency, West Nusa Tenggara Province, Indonesia. The CoW area covers 19,260 hectares in Dompu Regency and Bima Regency. Currently, PT STM is conducting mineral exploration activities to realize its vision in becoming a world-class copper mine powered by renewable energy.

For further information, please contact Sumbawa Timur Mining Team