1, Zhongke Electric (300035) : is the \"magnetic electric equipment lithium negative electrode\" dual main business, integrated production layout is deep, two wholly-owned subsidiaries Star City Graphite and Greit New materials are engaged in the research and development, production and sales of carbon composite materials.
< br >
2. Baotailong (601011) : Beijing Graphene Research Institute developed graphene single crystal wafers. In the second quarter of 2021, the net profit withholding was 35.74 million yuan, an increase of 728.18%. Gross profit is $115.8 million.
< br >
3. Jinbo Shares (688598) : The company has been deeply engaged in the field of carbon-based composite materials for 15 years, is an industry standard setter, has mastered core technologies such as high-temperature purification and high-purity coating preparation, and is a cutting-edge manufacturer of carbon-based composite materials.
< br >
4. Yinlong Co., LTD. (603969) : Tianjin Polymerization Carbon Base Research Institute focuses on the research and application of carbon materials. In the second quarter of 2021, net profit reached 71.91 million yuan.