HONG KONG (AFX-ASIA) – Heng Tai Consumables Group Ltd (197.HK) said it will acquire a 18.83% stake in Daqing Petroleum and Chemical Group Ltd for HK$86.9 million in a bid to expand into northern China, where Daqing operates. (US$1HK$7.78). In a statement, Heng Tai said it will get a combined 175.56 million Daqing shares at…