PT Saptaindra Sejati (SIS) is one of Indonesia’s leading mining contractors, specializing in coal mining services. As a subsidiary of PT Alamtri Resources Indonesia Tbk (formerly known as PT Adaro Energy Indonesia Tbk), SIS plays a crucial role in supporting Adaro’s mining operations by providing a broad range of services, including contract mining, civil works, infrastructure development, and land logistics. Over the years, SIS has developed a strong reputation for its expertise, efficiency, and commitment to safety in the mining industry.
SIS was established to meet the growing demand for reliable mining services in Indonesia. With its headquarters in Jakarta, the company operates across various mining sites throughout the country. SIS has continuously expanded its operations, investing in advanced technologies, modern equipment, and workforce training to ensure optimal efficiency in coal extraction. Through strategic planning and engineering solutions, SIS has contributed significantly to Indonesia’s coal industry, ensuring the smooth transportation and production of coal for domestic and international markets.

PT Vale Indonesia was established by Deed No. 49 dated July 25, 1968, drawn up before Eliza Pondaag, a public notary in Jakarta. We operates under a Contract of Work, which was amended with a Special Mining Business Permit (IUPK) on May 13, 2024. The contract is valid until December 28, 2035, and the concession covers an area of 118,017 Ha covering South Sulawesi (70,566 hectares), Central Sulawesi (22,699 hectares) and Southeast Sulawesi (24,752 hectares).
In producing nickel in the Sorowako Block, we use pyro metallurgical technology (in melting the laterite nickel ore). The Company mines laterite nickel ore and processes it into the final product of nickel in matte.
The Company also continues its plan to developing integrated mining practices through the Indonesia Growth Project (IGP) in Morowali Regency, Central Sulawesi, and in Kolaka Regency, Southeast Sulawesi. The development project also targets existing operational locations, in East Luwu Regency, South Sulawesi.
As the two largest shareholders, MIND ID (PT Mineral Industri Indonesia) and Vale Canada Limited (VCL) jointly control PT Vale Indonesia Tbk. MIND ID holds the largest share in the company at 34.00%, while VCL holds approximately 33.88%.

PT Patra Drilling Contractor (PDC) is a national company in Indonesia that specializes in providing drilling services for the oil and gas industry. Established on September 11, 1981, PDC was the first Indonesian company to offer offshore drilling services, marking a significant milestone in the country’s energy sector. Headquartered in Jakarta, PDC has grown into a reputable service provider with a workforce ranging from 1,001 to 5,000 employees. Over the years, the company has expanded its capabilities to include onshore drilling support, auxiliary well services, and integrated support functions such as catering and logistics.

PT Reska Multi Usaha, also known as KAI Services, is a subsidiary of PT Kereta Api Indonesia (Persero) established in 2003 with more than two decades of experience. The company was founded to implement and support the policies and programs of PT Kereta Api Indonesia (Persero) as the parent company, particularly in the railway restaurant business and other related services. PT Reska Multi Usaha operates in three core business areas: On Board Services, which include Sales On Train, On Train Cleaning, and Passenger Amenities; Integrated Facility Services, which consist of Security, Parking, Cleaning Service, and Outsourcing; and Commercial Services, which cover Restaurant, General Service, Cafe, and Catering.

Petroliam Nasional Berhad (PETRONAS) is a leading global energy company committed to powering society’s progress in a responsible and sustainable manner. With close to 50,000 employees and a global reach spanning over 100 countries, we are ranked among the world’s largest corporations by revenue in the Fortune Media IP Ltd’s 2022 FortuneGlobal500®list.
With over two decades of presence in Indonesia, PETRONAS currently holds participating interests in four contract areas across the country, all of which are in the exploration and development stages. PETRONAS has also consistently implemented a wide range of social and community programmes focused on education, capacity building, environmental stewardship, health, and community wellbeing and development, guided by its Corporate Sustainability Framework.

PT Astra International Tbk. - Daihatsu Sales Operation (AI-DSO) is a prominent entity within the automotive industry in Indonesia. Established in 1973, AI-DSO operates as a significant division under PT Astra International Tbk., one of the largest and most diversified conglomerates in Indonesia. The primary focus of AI-DSO is the distribution, sales, and after-sales service of Daihatsu-branded vehicles. This division plays a crucial role in ensuring that Daihatsu vehicles are accessible to consumers across Indonesia, providing comprehensive support and services to meet the diverse needs of its customers.
AI-DSO's operations are supported by PT Astra Daihatsu Motor (ADM), an associated entity formed through a collaboration between Astra, Daihatsu Motor Co., Ltd., and Toyota Tsusho Corporation. ADM serves as the brand holder agent for Daihatsu in Indonesia and acts as the main production base for Daihatsu and Toyota automotive groups outside Japan. This strategic partnership enables AI-DSO to leverage ADM's manufacturing capabilities and expertise, ensuring a steady supply of high-quality vehicles to the Indonesian market.

Bank Syariah Nasional is a sharia-based financial institution that represents a new chapter in Indonesia’s banking industry. Established on October 2, 2025, the bank operates as a subsidiary of Bank Tabungan Negara and is headquartered at Menara Bank BTN, Jakarta. The institution was created to strengthen the presence of Islamic banking in Indonesia, offering financial services that comply with sharia principles while addressing the needs of both individual and business customers. Its foundation reflects the growing demand for ethical and faith-based financial solutions in the country, positioning itself as a trusted partner for communities seeking transparency, fairness, and inclusivity in financial transactions.

PT Sarana Multi Infrastruktur (Persero) (PT SMI) is a state-owned enterprise in Indonesia that plays a crucial role in financing and supporting infrastructure development across the country. Established on February 26, 2009, PT SMI operates under the Ministry of Finance and serves as a Special Mission Vehicle (SMV) to accelerate infrastructure projects that contribute to Indonesia’s economic growth and sustainable development.
PT SMI provides various financial solutions, including project financing, advisory services, and project preparation assistance. Its primary focus is on infrastructure sectors such as transportation, energy, water supply, telecommunications, and social infrastructure. By offering innovative and flexible financing schemes, PT SMI helps bridge the gap between government funding and private sector investment, ensuring that critical infrastructure projects can be realized efficiently.