Mr Hambro is the Chairman, Non-Executive Director and Chairman of Nomination Committee of IRC. He was an Executive Director and the Chairman of Petropavlovsk PLC for 23 years until June 2017. Mr Hambro was a Director of a number of public companies listed on the London Stock Exchange from 1973 to 2017 and has spent 40 years in the metals business. He was the Deputy Managing Director of London-based bullion trader, Mocatta and Goldsmid Limited, and served on the Mocatta Group Executive Committee. He is the Chairman of Peter Hambro Limited and founded Peter Hambro Mining PLC, now renamed Petropavlovsk PLC, with Dr Pavel Maslovskiy. Mr Hambro is also a Director of a number of unlisted family companies.