Rasto graduated from Gunadharma University majoring in computer engineering. He has worked for more than 20 years in various fields and companies. Rasto worked as finance manager at several securities companies such as PT Asia Kapitalindo Securities and PT Majapahit Securities, Tbk. In 2014 joined PT Tempirai Energy Resources as Director. In 2016 she was appointed as President Director. Rasto is responsible for various aspects of management, operations, and regulatory compliance, with a focus on safety, environment, and profitability. Formulating the company’s vision, mission and long-term strategy. This includes business planning covering mine development, investment and future growth. Ensure the company carries out its social responsibilities, including environmental impact management. Ensure the company implements Corporate Social Responsibility (CSR) programs that have a positive impact on the surrounding community, such as economic empowerment and local infrastructure development.

Estu graduated with a bachelor’s degree in economics from the Yogyakarta Cooperation College of Economics. She has worked for more than 30 years in various companies. Prior to serving as finance director at PT Tempirai Energy Resources, Estu worked as finance manager at several securities companies such as PT Asia Kapitalindo Securities and PT Majapahit Securities, Tbk. In 2014 joined PT Tempirai Energy Resources as Finance Manager. In 2016 she was appointed as finance director. Estu Responsible for managing all company financial functions, including financial planning, financial performance analysis and financial reporting. Develop and implement long-term financial strategies to support company growth and sustainability. Leading the finance team in preparing budgets, financial projections and investment evaluation. Oversee internal and external audit processes, and ensure compliance with applicable financial regulations and standards