HONG KONG (AFX-ASIA) – China Petroleum & Chemical Corp (Sinopec) said it will get 663 petrol stations and an oil depot from its parent Sinopec Group Co through an asset swap, which could boost its pretax profit by 60.36 million yuan a year. (US$1=8.28 yuan). The assets are valued at 1.031 billion yuan. Sinopec is…