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Sinopec turns crude oil into the fuels, plastics, and chemicals that keep China running, selling them through its own vast network of gas stations and to factories across the country.
Sinopec is China's biggest oil refiner and one of its largest chemical makers. It buys crude oil, runs it through massive refineries, and sells the results — gasoline, diesel, jet fuel, plastics, and industrial chemicals — to drivers, factories, and businesses across mainland China. If you've ever filled up at a Sinopec station in China, you've been its customer.

The company works in two big chunks. The refining and petrochemical side is the industrial heart: it turns oil into fuel and chemicals, and it also makes the raw materials that go into everyday products like plastic bottles, synthetic fibers, and fertilizer. The marketing side is what most people see: Sinopec runs one of the largest gas station networks in China, where it sells gasoline, diesel, and increasingly electric-vehicle charging and convenience-store goods. It also pipes natural gas and sells it to cities and factories. What makes Sinopec strong is scale and location. Its stations sit on busy roads across the country, and its refineries are among the biggest in the world. But there's a catch: refining is a low-margin, price-taken business. Sinopec buys crude at global prices and sells fuel at prices the Chinese government largely controls, so its profits swing with oil prices and policy. When crude is cheap and demand is strong, it makes money; when crude spikes or demand sags, margins get squeezed. Its chemical plants face the same pressure, plus competition from new mega-plants in China and the Middle East.
The company spends heavily on keeping its refineries running and upgrading them to make cleaner fuels and more chemicals. It pays a large dividend to its biggest shareholder, the Chinese state, and to ordinary investors. And it's slowly adapting to the electric-vehicle boom by adding charging and battery-swap services at its stations. Sinopec isn't a growth story — it's a giant, steady utility-like business that keeps China's cars and factories fueled, for better and sometimes for worse.
Saved answer · last researched 12 Nov 2026