(Bloomberg) -- Thai Airways International Pcl has dropped Rolls-Royce Holdings Plc as its sole supplier of next-generation widebody engines in favor of General Electric Co. — a blow to the UK company as it tries to improve profitability.Most Read from BloombergMusk Says Putin Can’t Lose in Ukraine, Opposes Senate BillStanChart Weighs Break Up of Corporate, Investment BankThe Brutal Reality of Plunging Office Values Is HerePutin Seeks Revenge on a World Order He Once Wanted to JoinRetail Traders