A SingPost wholly owned subsidiary, TG Acquisition Corp., is buying the TradeGlobal shares from Bregal Sagemount, a U.S. private-equity fund, in a transaction due for completion in the coming months.      TradeGlobal provides e-commerce operation services, including website building, supply chain management and fulfillment services, to various global companies. It has over 60 clients, including luxury fashion brands such as MCM, Versace and Tory Burch, as well as well-known cosmetics brands like Shiseido.      TradeGlobal's client mix complements that of Jagged Peak, a U.S. company in which SingPost earlier announced it was taking a 71.1% stake for $15.8 million....