 Theta Gold Mines Ltd ASX:TGM OTCMKTS:TGMGF looks set to become a key player in the South African mining industry through plans to begin operations at open pit and underground mines in the Eastern Transvaal Gold Fields. In order to unlock at least 6 million ounces of gold resources, the company plans to start four mines within five years to build an annual production profile of more than 160,000 ounces. 