The petroleum industry is an industrial sector that extracts and refines petroleum (including natural oil, shale oil, and natural gas). Composed of units involved in oilfield geological exploration, oilfield development, oil extraction, transportation, refining and processing. Petroleum is the "blood" of industry and an important industrial energy source.

The chemical industry includes sectors such as chemical engineering, refining, metallurgy, energy, light industry, petrochemicals, environment, medicine, environmental protection, and military industry engaged in engineering design, fine and daily chemical engineering, energy and power, technology development, production technology management, and scientific research.

The metallurgical industry refers to the industrial sector that mines, selects, and sinter metal ores, and then refines and processes them into metallic materials.

A power station is a factory that converts various primary energy sources in nature into electrical energy (secondary energy). The development of motor manufacturing technology, the expansion of the application scope of electric energy, and the rapid growth of production demand for electricity have led to the emergence of power plants.

The shipbuilding industry is an industrial sector that manufactures various types of ships. The shipbuilding industry is a comprehensive industry that provides technical equipment for the shipping industry, ocean development, and national defense construction. It plays a strong driving role in the development and expansion of key industries such as steel, petrochemicals, light industry, textiles, equipment manufacturing, and electronic information exports.

The papermaking industry is an industrial sector that manufactures various types of paper and cardboard. It includes several aspects such as pulp manufacturing using wood, reed, sugarcane bagasse, straw, wheat straw, cotton straw, hemp stalks, cotton and other raw materials to produce pulp, paper and paperboard manufacturing, as well as processing paper manufacturing for coating, polishing, gluing, laminating and other processing paper and font paper plates.

Natural gas is a general term for mixed gases mainly composed of hydrocarbons that exist in underground rock reservoirs. It is a high-quality fuel and chemical raw material. Due to the increasing demand for clean energy in environmental protection and the impact of high oil prices, the natural gas industry has become a new economic growth point.

New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy. Refers to newly developed or actively researched energy sources that need to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, and nuclear fusion energy.