A substantial shareholder in Hongkong-listed Panva Gas has sold off 48 million shares representing 5.09% of its issued capital for HK$156 million or about HK$3.25 per share. (US$1=HK$7.87). Sinolink Worldwide Holdings Limited said the sale through the open market was made by its wholly-owned subsidiary Kenson Investment Limited last week. Before the sale,…