SocGen said this month it would cut 1,600 jobs to boost profits after poor performance last year and exit over-the-counter commodities trading.

SocGen declined to comment on its resignation.

In over-the-counter trading deals are done bilaterally between banks and brokers rather than on a financial exchange. London is the world's largest over-the-counter gold trading hub, overseen by the LBMA.

Market makers commit to provide liquidity to the market. SocGen's exit leaves 12 LBMA market-making banks including JPMorgan, HSBC and BNP Paribas.

(This story has been amended after SocGen corrects its statement that it made markets only in gold)

(Reporting by Peter Hobson; editing by Veronica Brown and Dale Hudson)

By Peter Hobson