Main business: R&D, producing and selling ice making, storage and transportation equipment and systems, and designing and producing cold water equipment, refrigeration, air conditioning, environmental protection and other related refrigeration products.

2. Tianneng shares: current price: 32.7 1 yuan.

Mainly engaged in the power battery business of electric light vehicles, integrating R&D and production of multi-category batteries such as power batteries for electric special vehicles, power batteries for new energy vehicles, start-stop batteries for automobiles, energy storage batteries, 3C batteries and spare batteries.

3. Dongyue silicon material: current price: 19.08 yuan.

The company specializes in the production and sales of R&D and silica gel materials. The main products include silicone rubber, silicone oil, fumed silica and other downstream deep processing products in silicone and silicone intermediates.

4. Jin Feng Science and Technology: Current price: 10.4438+0 yuan.

Wind turbine manufacturing, wind power service, wind farm investment and development, water affairs and other businesses.

5. Sanfu shares: current price: 47.30 yuan.

The company is a high-tech chemical enterprise with comprehensive utilization of resources and development of recycling industry. Based on the development concept of environmental protection, the company's "two silicon and two potassium" production system of trichlorosilane, silicon tetrachloride, potassium hydroxide and potassium sulfate has realized collaborative production, resource recycling and product mutual support, initially formed a circular industrial chain, and embarked on a new road of green circular development in the chemical industry.

6. Chongqing Three Gorges A: Current price: 6.20 yuan.

The company closely follows the development direction of the industry, constantly meets the market demand and adjusts the product structure in time. In recent years, a series of coating products with independent intellectual property rights have been launched: low carbon and environmental protection.

7. Meijin Energy: Current price: 14.46 yuan.

It is one of the largest independent producers of commercial coke and coking coal in China, the head enterprise of the whole industrial chain layout of hydrogen energy, and the first innovator in the transformation and upgrading of the energy industry.

8. Dayang Electric: Current price: 6.37 yuan.

Products such as powertrain system of new energy vehicles, hydrogen fuel cell system, hydrogen engine system and rotating electrical appliances for vehicles are high-tech enterprises integrating "highly independent research and development, lean manufacturing and intelligent marketing".