BUMA Board of Directors


Ronald Sutardja - President Director

Mr. Ronald Sutardja has served as President Director of BUMA since March 2014 following his prior position as Vice President Director from June 2012. Since 2010, he has been professionally associated with Northstar, in the role of Head of Field Operations. During that time he held a Director position at PT Trikomsel Oke Tbk. Previously he has worked at Infineum Singapore PTE LTD, Michelin Malaysia and Singapore. He holds Bachelor Degree in Mechanical Engineering from University of California at Berkeley, USA (1989), Master of Science from Massachusetts Institute of Technology, USA (1991) and Master of Manufacturing Management from Northwestern University-Kellog Graduate School of Management, USA (1995). He started his professional career as a consultant at Booz, Allen & Hamilton.

Sorimuda Pulungan - Director

Mr. Sorimuda Pulungan served as Director of BUMA since January 2012. He has 23 years experience in mining industry. He worked at PT Aurora Gold (1994 - 2002), and prior to joining BUMA, he spent nine years with PT International Nickel Company, with his last position as General Manager at Mining Technology Division. He graduated from Bandung Institute of Technology with a degree in Mining Technology (2004), and obtained a Master Degree in Financial Management from Hasanuddin University, South Sulawesi, Indonesia.

Indra Kanoena - Director

Mr. Indra Kanoena served as Director of BUMA since January 2013. He has more than 20 years experiences in various positions in organization and human resources management, government and community relation, and heavy equipment maintenance management. He worked at PT International Nickel Indonesia (PT INCO) Tbk. (1997-2007) and PT Freeport Indonesia (2007-2012) with last position as Vice President of Human Resources. Prior to joining BUMA, he worked at PT HM Sampoerna Tbk. as Head of Organization and Management Strategy. He obtained a Bachelor’s Degree of Science in Industrial Engineering from Indonesia Institute of Technology and Master Degree in Strategic Management from Binus Business School – Bina Nusantara University, Jakarta.

Una Lindasari - Director

Ms. Una Lindasari was appointed as Director of BUMA in August 2014. She has more than 30 years experiences as a senior management positions within in Finance area in many companies including as a Finance Controller of BP Indonesia. Prior to joining BUMA, she worked at Noble Group Indonesia as Chief Financial Officer since 2008. She started her professional career as an Auditor at Arthur Andersen Indonesia. She obtained a Bachelor’s Degree in Accounting from University of Indonesia and later obtained her Master of Management and Master of Business Administration double-degree from IPMI-Monash University.

Jason Thompson - Director

Mr. Jason Thompson was appointed as Director of BUMA in August 2014. He has more than 25 years of experiences in mining industry in Australia, South America and Indonesia with mine owners such as Mt Isa Mines Ltd and Minera Alumbrera Ltd (now Glencore) as well contract miner Thiess. Prior to joining BUMA, he worked for PT Leighton Contractors Indonesia since 2008 with latest position as Mining Development Manager. He holds a Bachelor’s Degree in Mining Engineering from Sydney University, Australia and a Master’s Degree in Business Administration from Queensland University, Australia.