Diesel switch sends rocketing rhodium market to new heights

Rhodium and ruthenium are having a banner week. Rhodium, mainly used in autocatalysts to curb harmful emissions, is benefiting as more European consumers choose gasoline-powered cars and trucks over diesel, said Jonathan Butler, a precious metals strategist at Mitsubishi Corp. in London. Drivers for ruthenium include demand for applications such as organic light-emitting diodes and water purification purposes, he said.