BEIJING (AFX-ASIA) – The Shanghai Bureau of Commodity Prices has raised the retail price of liquefied petroleum gas (LPG) by another 3.4% to 2.15 yuan per liter, due to rising international oil prices, an official surnamed Hong in the bureau told AFX-Asia. (US$1=8.27 yuan). In March, the local government lifted retail LPG prices to 2.08…