Shell (China's largest international oil equity producer and one of the largest traders of crude oil and its products)
Mobil Mobil (the world's largest non-governmental oil and gas producer and the world's largest non-governmental gas seller)
Castrol (Castrol is a world-recognized lubricant expert, a world-famous brand, and the engine oil brand in 1899).
BP (one of the largest petroleum and petrochemical group companies in the world, one of the top 500 companies in the world, engine oil brand)
Total (one of the four largest petrochemical companies in the world and one of the largest producers of liquefied natural gas in the world)
Great Wall (China well-known trademark, China Petrochemical Lubricant Company, the largest professional production and sales group of advanced lubricants in China)
Uni-President (one of the most influential brands in China, China well-known trademark, national key protected trademark and China well-known trademark).
Flowserve (Germany Flowserve Petroleum Group 193 1, the world's largest lubricant manufacturer and engine oil brand)
Compton (famous brand product, famous trademark of Shandong Province, Qingdao Compton Petrochemical Co., Ltd., 1992)
Kunlun (China Petroleum Lubricating Oil Company is a directly affiliated enterprise of China Petroleum and Natural Gas Co., Ltd., engine oil)