Income investors are constantly looking for stocks that pay out sustainable dividends. Such stocks should also have an attractive dividend yield that helps them to beat inflation. Blue-chip stock Keppel Ltd (SGX: BN4) is one stock that is popular with investors for its long track record and healthy dividend payments. The stock is providing a yield of around 4.8% presently. However, we managed to uncover four Singapore stocks that provide a higher dividend yield than Keppel. Read on to find out more about these businesses. OCBC Ltd (SGX: O39) OCBC is Singapore’s second-largest bank by market capitalisation and offers a comprehensive range of banking, insurance, and investment services for its customers. The lender reported a sparkling set of earnings for 2023 as higher interest rates boosted its net interest margin and net interest income. Total income climbed 25% year on year to S$13.5 billion, buoyed by a 25% year-on-year rise in net interest income to S$9.6 billion....