The petroleum industry is an important component of the fuel industry, covering multiple links such as exploration, extraction, refining, storage and transportation of natural petroleum and oil shale, providing various fuel oils for various sectors of the national economy.

The chemical industry is a general term for enterprises and units engaged in the production and development of the chemical industry. This industry penetrates into various fields and is an indispensable and important component of the national economy.

The metallurgical industry refers to the industrial sector that explores, mines, selects, refines, and rolls metal minerals into materials, including two major categories: black metallurgical industry and non-ferrous metallurgical industry.

The power industry is an industrial sector that converts various types of primary energy into electrical energy through power generation facilities and delivers it to end-users. It is an important foundational industry of the national economy.

The water treatment industry is about purifying, softening, disinfecting, and removing iron and manganese from water that does not meet the requirements. Removing heavy metal ions and filtering a project. Important areas to meet different water needs.

Natural gas is a clean and efficient fossil energy source, mainly composed of methane. It covers the entire industry chain from natural gas exploration, development, production, purification, storage, transportation to sales and utilization.

The pharmaceutical industry refers to the industry engaged in drug research and development, production, sales, and after-sales service, covering multiple fields such as chemical pharmaceuticals, biopharmaceuticals, and traditional Chinese medicine. It plays a crucial role in safeguarding human health and improving quality of life.

The paper industry is an industry that mainly uses wood and other raw materials to develop and produce pulp, paper, cardboard, and other fiber matrix products. It is one of China's the Four Great Inventions.

New energy refers to renewable energy that can be systematically developed and utilized based on new technologies, including solar energy, wind energy, hydro energy, biomass energy, geothermal energy, ocean energy, nuclear energy, etc.