Sambo Mining is the main supplier of dolomite in South Korea, selling the product to the Asian steelmakers. In 2017, the production of -30mm end-product grew close to 100,000 tonnes to total of 800,000 tonnes a year. Of this, 200,00 tonnes of premium light-burnt dolomite (LBD) was produced for POSCO, one the largest steelmaking companies of the world, in addition to same amount of regular dolomite. To meet the high demand, Sambo Mining has invested heavily in developing both its dolomite mine and subsidiary’s Kwang Jin’s limestone quarry with Metso solutions