Glencore will own 100% of the mine after the deal, a spokesperson at Sumitomo said.

The move comes in line with the Japanese company's policy to tackle climate change, which was revised in May and included a goal to cut its thermal coal output to zero by 2030, the spokesperson said.

Sumitomo's remaining interest in thermal coal mines is a 37.13% stake in the Clermont mine in Australia, but the company plans to keep its stake as the mine life is expected to end by 2030, the spokesperson said.

(Reporting by Yuka Obayashi; Editing by Lincoln Feast.)