Agustiawan is an Of-Counsel of the Firm. He holds a Law Degree (Sarjana Hukum) from Airlangga University in Indonesia and LL.M Degree from the Southern Methodist University, Dallas, USA. Mr. Agustiawan joined the Firm as a Partner on 1st February 2007. As of August 2020, Mr. Agustiawan acted as an Of-Counsel of the Firm. His area of practice includes energy and natural resources law, particularly the oil and gas law. Prior to joining the Firm, Agustiawan was General Counsel of PT. Caltex Pacific Indonesia (now, known as PT. Chevron Pacific Indonesia).