The premium of the most active COMEX copper futures over the LME benchmark fell to 26% from last week's 30% after Chile, the world's top supplier of the metal, said the U.S. copper tariffs would be ...

By David Lawder, Greta Rosen Fondahn and Maria Martinez STOCKHOLM (Reuters) -U.S. and Chinese officials agreed to seek an extension of their 90-day tariff truce on Tuesday, following two days of what ...