Why does Baosteel have to import all its iron ore?

1, close to the port, easy to import.

2. Most foreign imports are rich in iron ore, with little waste residue, and the steelmaking process is slightly simple.

3. Iron ore is relatively cheap (unit steel steelmaking cost)

4. Government policy encouragement

5. Strategic significance

Iron is the earliest discovered, most widely used and most used metal in the world, and its consumption accounts for about 95% of the total metal consumption. Iron ore is mainly used in iron and steel industry to smelt pig iron with different carbon content (generally above 2%) and steel (generally below 2%).

Pig iron is usually divided into steelmaking pig iron, casting pig iron and alloy pig iron according to different uses. Steel is divided into carbon steel and alloy steel according to different composition elements. Alloy steel is a kind of steel in which one or more elements are intentionally added on the basis of carbon steel to improve or obtain certain properties. There are many kinds of elements added to steel, mainly chromium, manganese, vanadium, titanium, nickel, molybdenum and silicon. In addition, iron ore is also used as a catalyst for synthetic ammonia (pure magnetite), natural mineral pigments (hematite, specularite and limonite), feed additives (magnetite, hematite and limonite) and precious medical stone (magnet), but the dosage is very small. Iron and steel products are widely used in all sectors of the national economy and all aspects of people's lives, and are essential basic materials for social production and public life. Since the invention of converter steelmaking in the middle of19th century, steel has been the most important structural material, occupying an extremely important position in the national economy, an important pillar industry of social development, and the most important and widely used metal material in modern industry. Therefore, people often regard the output, variety and quality of steel as an important symbol to measure the development level of a country's industry, agriculture, national defense and science and technology.