PT Dian Swastatika Sentosa Tbk is an Indonesian diversified energy company with a primary focus on coal mining and trading. The company generates most of its revenue from the production and sale of thermal coal, serving a broad geographical footprint that includes Indonesia, China, India, Korea, and other international markets. In addition to its core coal operations, it is active in segments such as electricity and steam supply, fertilizer and chemicals trading, and asset rentals, reflecting a vertically integrated business model within the energy sector. The company employs over 2,000 people and supports critical energy supply chains in Asia, impacting industries that rely on coal-fired power and basic materials. Its financial metrics indicate robust operational efficiency in asset utilization and capital management. As a large-cap stock within the thermal coal industry, PT Dian Swastatika Sentosa Tbk plays a significant role in meeting regional energy demand and supporting the ongoing development of energy infrastructure.