Santoso Widjojo, born in Pekalongan, Indonesia, holds a Bachelor's degree in Mechanical Engineering from Atmajaya Catholic University, Jakarta (1984) and earned his MBA from the University of Miami, USA, in 1988. Widjojo is a senior executive with over 35 years of leadership experience in the Capital Markets, Trade, and Hospitality sectors, known for his strategic vision, strong execution, and extensive network within the Indonesian business community.

He began his career in Indonesia’s capital market by joining Multicor Securities in 1990, later becoming President Director of PT Peregrine Sewu Securities in 2000. He then served as President Director of PT Dinamika Usahaja (a member of the Djarum Group), which later became PT BCA Sekuritas, until the end of 2012. In 2013, he became a commissioner at PT Trisula Textile Industries and served as President Director of PT Trisula International Tbk from 2018 to 2022. He also held the position of President Commissioner at PT Sequis Asset Management from 2015 to 2023.

Currently, he serves as an Independent Commissioner at PT Sunter Lakeside Hotel Tbk.

Cunfei Yu, originally from Shanxi Province, China, holds a bachelor's degree in Business Administration from Shaanxi University of Science and Technology. He brings extensive management experience in the logistics and energy sectors, having served as Station Manager at Yangyuan Jintong Logistics Co., Ltd., and as Director of Railway Transportation at an energy company. Since March 2022, he has led the Indonesia Expansion Project Department within the Sales and Marketing Division of a major Indonesian mining company, driving strategic development and international business initiatives. Yu is recognized for his strong leadership skills, dedication, and ability to work effectively in a team. He possesses a proactive mindset, excellent problem-solving abilities, and consistently ensures high operational efficiency and successful project delivery.

Surono Salem is an experienced finance and accounting professional with a strong track record across various leading companies and professional service firms. He holds a Bachelor's degree in Accounting from Tarumanagara University and is a Certified Public Accountant (CPA) accredited by the Indonesian Institute of Certified Public Accountants (IAPI). With over 15 years of experience, Surono has held key leadership roles such as Financial Controller at Masterbuilders Indonesia and Finance Manager at APP Sinarmas. His foundational years at PwC and Ernst & Young equipped him with solid expertise in auditing, financial analysis, compliance, and strategic planning—establishing him as a capable, results-oriented leader in financial operations.

A professional with over two decades of experience in the coal industry, Chen holds dual bachelor's degrees in Mining Engineering and Engineering Management, a master's degree in Mining Engineering, and is currently pursuing an Executive MBA at Fudan University—enhancing his strategic leadership and managerial skills to complement his technical expertise. Chen has held prominent leadership roles, including Director of the Taiyuan Coal Design and Research Institute and Principal Engineer of a major mining group. As a certified Senior Engineer, he has successfully led the design and implementation of large-scale coal mining projects. Recognized for his strengths in project management, mine planning, and technical supervision, Chen has received ministerial awards and authored several publications on mining engineering and blasting technology—strengthening his reputation as a respected expert and leader in the field.