LONDON (Reuters) – Commodities trader Gunvor Group has appointed Jeff Webster as its chief financial officer, replacing Muriel Schwab, it said on Tuesday. Webster is joining Geneva-based Gunvor after being treasurer at rival trading firm Mercuria since 2018. He previously held several roles at the Swiss bank UBS, including Treasury CFO, EMEA Treasurer and Global Head of Liquidity Management between 2005 and 2018. He has a Master’s degree in mathematics from the University of Cambridge and an Executive MBA from IMD (International Institute for Management Development). He is expected to start in…