PT Pamapersada Nusantara (PAMA) is a leading mining contractor in Indonesia, specializing in coal mining, energy, and heavy equipment services. As a subsidiary of PT United Tractors Tbk, which is part of the Astra International Group, PAMA has established itself as a pioneer in the mining industry since its inception in 1974. Initially a division within PT United Tractors, PAMA became a standalone company in 1993.
PAMA is committed to sustainable mining practices and adheres to Environmental, Social, and Governance (ESG) principles. The company focuses on providing comprehensive solutions for energy and mineral supply while prioritizing environmental sustainability and continuity. PAMA manages various mining projects, including coal, gold, and quarry operations, as well as construction projects such as dam building and road construction across Indonesia.

PT Pelita Air Service (PAS), established in 1970 in Indonesia, began its journey in the exploration and exploitation of oil and natural gas fields. Over the years, PAS has evolved into a leading provider of aviation and industrial services, offering award-winning solutions that cater to diverse needs. As part of its commitment to excellence, the company has built a reputation for reliability and innovation in transportation, training, maintenance, and other specialized services.
In aviation, PAS has demonstrated exceptional capabilities, logging 37,884 flight hours between 2014–2017. Its extensive network includes five base stations, with a fleet comprising 15 rotary-wing aircraft (helicopters) and nine fixed-wing planes. Notably, PAS plays a crucial role in Papua’s "1 Fuel Price" program, transporting over 150 kiloliters of fuel monthly to support equitable fuel access in remote areas.

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.

PT Elnusa Tbk is a leading energy services company in Indonesia that has been operating since 1969. Headquartered in Jakarta, the company is a subsidiary of PT Pertamina Hulu Energi and is listed on the Indonesia Stock Exchange under the ticker symbol ELSA. Over the decades, Elnusa has built a strong reputation as an integrated service provider in the oil and gas sector, combining upstream, support, and downstream activities to deliver comprehensive solutions for its clients.

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 Pertamina Training & Consulting (PTC) is a subsidiary of PT Pertamina (Persero), Indonesia’s state-owned oil and gas company. Established in 1999 under the name PT Patra Tridaya, the company officially began its operations in 2002. PTC was formed to support Pertamina’s strategic objectives in human resource development and operational excellence. Over the years, PTC has evolved into a multifaceted service provider offering a wide range of solutions in training, consulting, manpower supply, security services, event management, and competency assessment. Its role within the Pertamina Group is to ensure that the workforce and organizational systems are aligned with global standards and capable of supporting the dynamic needs of the energy sector.

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 Pos Indonesia (Persero) is Indonesia’s oldest state-owned enterprise, established in 1746, and today it operates as a modern postal, logistics, and financial services provider with a nationwide reach. It has transformed from a traditional mail carrier into a diversified company supporting digital services, logistics, and financial inclusion across the archipelago.
PT Pos Indonesia (Persero) traces its origins back to August 26, 1746, when the first post office was founded in Batavia, now Jakarta, by Governor General G.W. Baron van Imhoff. Initially created to secure correspondence for traders and maintain communication between the Netherlands and the East Indies, the company gradually expanded with additional post offices in Semarang and other key trading hubs. By the late nineteenth century, postal services merged with telegraph operations, and in 1877, Indonesia’s postal system joined the Universal Postal Union, enabling international connectivity. During the colonial and wartime periods, the postal service operated under the Post, Telegraph, and Telephone (PTT) administration, functioning as a public service rather than a commercial entity. Following Indonesia’s independence in 1945, the postal system was taken over by Indonesian staff, marking the beginning of its role as a national institution.