Triharyo Soesilo | Green Economy Council Vice Chairman
Indonesia Carbon Trade Association (IDCTA)

Triharyo Indrawan Soesilo (Hengki) is an experienced Indonesian engineering and energy executive with extensive expertise in industrial project development and infrastructure across Indonesia and Southeast Asia. He has held senior leadership and advisory positions, including CEO of PT Rekayasa Industri and Supreme Energy, Commissioner of PT Pertamina (Persero), Project Director for the Energy Sector at the Committee for Acceleration of Priority Infrastructure Delivery, and Special Advisor to the Minister of Energy and Mineral Resources for the acceleration of infrastructure and investment. With a career spanning fertilizer, petrochemical, power, oil and gas, refinery, geothermal, and other major infrastructure projects, he has been involved in projects representing billions of dollars in investment. Since September 2024, he has served as Project Development Specialist at the Center of Excellence for Carbon Capture and Storage (CCS) at Institut Teknologi Bandung and the Indonesia Carbon Trade Association (IDCTA), where he is involved in the development of more than 30 CCS projects in Indonesia, international cooperation for CCS carbon credit trading, and green industry development. He holds a Master’s degree in Chemical Engineering from the University of Arizona and a Bachelor’s degree in Chemical Engineering from Institut Teknologi Bandung.