Sony is one of the leading advisors on structuring and tax issues in Indonesia. He spent most of his career working for major international accounting firms, including three years in Melbourne, Australia, before setting up his own business advisory practice. He was Chairman of a major accounting firm in Indonesia and is now Chairman of Harsono Strategic Consulting (HSC).
During his career Sony has gained in-depth knowledge of the commercial aspects of doing business in Indonesia including financial, accounting, regulatory and tax issues. His expertise includes corporate restructuring, transfer pricing issues, taxation on cross-border transactions, and project formation and planning. He specializes in servicing major Japanese, US and European corporations.
Sony has extensive knowledge of business structuring and taxation issues in a number of industries, in particular infrastructure and energy. His positions include:
Member of the Investment Committee of Daya Anagata Nusantara (Danantara), the newly established Indonesia Sovereign Wealth Fund as the institution focusing on handling government investment
Member of the Board of Advisors to the United States-Indonesia Society (USINDO)
Independent Commissioner PT Harum Energy Tbk (an energy company listed on the Jakarta Stock Exchange)
Former Independent Commissioner PT Tokio Marine Indonesia, a subsidiary of Tokio Marine, Japan
Advisor to significant infrastructure projects including Jakarta MRT, various power projects (IPP companies), Jakarta Port Expansion Project and the world's largest geothermal power plant (in Sumatra)