Glencore Loses Senior Aluminum Traders to Rivals Vitol, Mercuria

Two of the top traders in Glencore Plc’s aluminum department are leaving for Vitol Group and Mercuria Energy Group Ltd — the latest sign of how a return into metals by energy firms is fueling a talent war in the sector.

Sam Imfeld, a longstanding trader in Glencore’s aluminum and alumina team, will be joining Vitol in Singapore, according to people familiar with the matter. Meanwhile alumina trader Steven Rojas will join Mercuria later this year. They both worked under Robin Scheiner, Glencore’s head of alumina and aluminum trading.

The moves are the latest signs that Glencore ...