May 7 (Reuters) - Arcadium Lithium ( ARLTF ), formed

earlier this year by the merger of U.S. lithium miner Livent and

Australia's Allkem, on Tuesday posted lower first-quarter

profit, hit by a decline in prices.

The producer of key electric vehicle (EV) battery metal

posted net income of $15.6 million, or 1 cent per share, for the

three months ended March 31, down from $114.8 million, or 23

cents per share, last year. The results were consolidated

between the two combined companies.