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Indonesia's contact member

John Slack is appointed as the contact member to help promote ICAEW's strategy and brand in Indonesia. For enquiries around membership or student support, please get in touch with your local office in Jakarta.

Contact Member's details

Mr John S A Slack BSc FCA

Strategy Director for PT Wintermar Offshore Marine Tbk

Tel:+62 811 102049


John Slack is the Strategy Director for PT Wintermar Offshore Marine Tbk since 2012 and also serves as an Independent Commissioner and Chair of Audit Committee for PT Jakarta Setiabudi Internasional, a listed property and hotel company. He is a Fellow of the Institute of Chartered Accountants in England & Wales (1975) and holds a Bachelor’s Degree in Chemical Engineering from Manchester University UMIST (1972).

Mr Slack has been a prominent figure in the finance industry in Indonesia since he arrived with Price Waterhouse in 1978. Since then he has gained experience in a number of industries including property, plantations, banking, power generation, education and mining prior to his present position with the largest Indonesian fleet owner of vessels supporting the offshore oil and gas exploration and production industry. He served as Finance Director for PT Astra International Tbk from 2000 to 2005 and his responsibilities there included serving as a Commissioner in PT Astra Agro Lestari Tbk, PT Toyota Astra motor, PT Astra Graphia Tbk, PT FIF and ACC Credit Companies.

Married for 33 years with three grown up children, Mr Slack is also a Board member of the British Chamber of Commerce in Indonesia.