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.

Bank Central Asia (BCA) is one of Indonesia's largest private banks, established in 1957. Over the years, BCA has grown significantly and now operates a vast network of branches and ATMs across the country. The bank is known for its wide range of financial services, including savings accounts, credit cards, loans, and investment products.
The bank has a strong reputation for its customer service and innovative banking solutions. BCA offers various digital banking services through its online platform, myBCA, which allows customers to manage their accounts, apply for loans, and perform other banking transactions conveniently from their homes.
In addition to its extensive branch network, BCA also provides specialized services for businesses and corporations, offering tailored solutions to meet their financial needs. The bank is committed to supporting local businesses and has various promotional offers and partnerships to help them grow.
BCA's headquarters is located in Jakarta, and the bank is regulated and supervised by the Financial Services Authority (OJK) and Bank Indonesia. The bank's mission is to provide reliable and efficient banking services to its customers while contributing to the economic development of Indonesia.

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.