The parent company of Tasmanian coal miner Cornwall Coal has decided to keep the business. Cement Australia put the company on the market six months ago to see if there was a prospective owner who would be able to add more value to the operation. However, Cement Australia’s chief executive, Chris Leon, says after an exhaustive process, a decision has been made to keep the business. Cornwall Coal employs 69 people and operates two mines in the Fingal Valley.