Red Crescent Resources (RCB.TO: Quote) said on Monday that South African miner Petmin (PEMJ.J: Quote) has agreed to acquire a 10.1 percent stake in the Canadian exploration company for C$4.64 million ($4.78 million). Separately, Red Crescent said it had signed a new definitive agreement with privately held Gensay to acquire a 75 percent interest in the Sivas copper project in central Turkey.