John is President of the PNGCCI. He has practised law for ten years and is partner in commercial firm, Leahy Lewin Lowing Sullivan. He was Managing Partner in PNG of Deloitte and later PricewaterhouseCoopers. He practises mainly in resource law, taxation, new businesses establishment, acquisitions, telecommunications and government relations. He has been on the boards of BCL, BNG Trading and PIPSO among others. He is currently on the Board of the Bank of Papua New Guinea.