The deal will see Utico subscribe to S$300 million in Hyflux shares, giving it a 95% stake, and inject working capital of S$100 million, the Singapore company said in a statement.

The agreement comes after debt-laden Hyflux - once lauded as a national champion running a strategically important water source for the city-state - entered a court-supervised restructuring process this year that threatened to wipe out the holdings of tens of thousands of retail investors.

(Reporting by John Geddie; Editing by Tom Hogue)