Sinopec is a trademark that China Petrochemical Corporation applied for registration with the China Trademark Office on April 11, 2007, and Sinopec’s refueling discount days are on the 5th, 15th, and 25th of every month. , at the same time, Sinopec will also launch various recharge activities from time to time. China National Petroleum Corporation is an important state-owned enterprise and one of the world's major oil and gas producers and suppliers. It is a comprehensive international company integrating domestic and foreign oil and gas exploration and development, new energy, refining and chemical sales, new materials, support and services. The energy company was established in July 1998 with a registered capital of 486.9 million yuan. Among the top 500 Chinese companies in 2023, PetroChina ranked first.