Suriamartara Tjahaja stepped down as PSL Holdings' executive director
He is to pursue personal interests and business.
Mr. Tjahaja, 51, is responsible for strategic planning, corporate management, operations and business development of the group until January 31, 2017.
He earned his Bachelor of Science in Business Administration from California State University Fresno, Fresno, California, USA and Master of Business Administration in Corporate Finance from Golden State University, San Francisco, California, USA.