Copper prices retreated on Wednesday after fresh hostilities in the Iran war punctured optimism that a resolution was imminent and lifted the dollar, though the prospect of U.S. tariffs limited the downside. Benchmark three-month copper on the London Metal Exchange was down 0.9% at $13,914 a metric ton by 0930 GMT. It had touched its highest in more than two weeks in the previous session, when it gained 1.5%. Gulf hostilities flared on Wednesday as diplomacy between Washington and Tehran showed little progress. “Clearly an exchange of fire doesn’t give much confidence in the ability to get a lasting ceasefire, so the ... (full story)