Has been acquired and now serves as the holding company of the Sumeru Group. It oversees strategic functions including capital financing, legal compliance, internal audits, and HR development and training. The company also manages the overall corporate administration of all subsidiaries under the group.

Operates in coal mining with a strong focus on sustainable and responsible extraction practices. The company strives to optimize production efficiency while minimizing its environmental impact. It adheres to strict safety and operational standards to ensure long-term resource viability.

A company engaged in coal trading, committed to delivering high-quality coal products. It serves both domestic and international markets with a robust and efficient supply chain. The company emphasizes consistency, reliability, and strong partnerships in meeting client demands.

Specializes in the mining and trading of premium-grade silica sand used in various industrial sectors. The company ensures quality assurance, regulatory compliance, and efficient distribution. It continues to expand its market reach by offering reliable supply and customized solutions for clients.