Hong Kong-listed Panva Gas said it has entered into a sale and purchase agreement to acquire 104 million shares or a 13% stake in the Chengdu City Gas from its existing owners for RMB170,352,000 (US$1=RMB8.27) representing RMB1.638 per share. The owners include Chengdu City (41%), the employees of Chengdu City Gas (10%) and an unnamed…