Workers at the world's No. 2 copper mine, Chile's Chuquicamata, voted on Tuesday to end a two-day strike and accept an improved wage offer from top global copper producer Codelco, a union leader at the ballot count said.

The union leader said a majority of workers had voted to end the strike at the complex, which accounts for about 4 percent of the world's mined copper. Work would resume early on Wednesday.