SINGAPORE, Nov 3 (Reuters) - EDP Renewables (EDPR) (EDPR.LS) has purchased a majority stake in Southeast Asian renewables firm Sunseap Group, in a deal that values the Singapore-based company at S$1.1 billion ($816 million), Sunseap said in a statement on Wednesday. This follows a Reuters report last week that EDPR, 75% owned by Energias de Portugal (EDP.LS), Portugal"s biggest utility, was in late-stage talks to buy out the stake held in Sunseap by Thai energy firm Banpu, Singapore state investor Temasek Holdings, a Temasek-backed fund and other investors. Earlier on Wednesday, Banpu PCL (BANPU.BK) said it had agreed to sell its 47.5% shareholding in Sunseap for about S$490 million. ($1 = 1.3483 Singapore dollars) Reporting by Anshuman Daga; Editing by Himani Sarkar; Editing by Christopher Cushing