China is the largest VC producer and exporter. At present, the four major VC producers, Northeast Pharmaceutical, North China Pharmaceutical, Unacon Pharmaceutical and Jiangshan Pharmaceutical, have a total production capacity of 82, tons, accounting for about 68% of the global production. At the peak, there were 28 domestic VC manufacturers. Later, after market integration, Shijiazhuang Pharmaceutical, Huabei Pharmaceutical, Jiangshan Pharmaceutical and Dongbei Pharmaceutical "four VC giants" were formed in China. As the largest producer and exporter of vitamin C(VC) in the world, the combined production capacity of China's four VC giants can meet half the demand of the global VC market.

Overview of vitamin concept stocks:

Zhejiang Medicine: Zhejiang Medicine is an important manufacturer of raw materials and preparations in China, and an important production base of vitamins, antibiotic-resistant bacteria and quinolones. The company has formed a series of specialized and large-scale production of fat-soluble vitamins, retinoids, quinolones and antibiotic-resistant antibiotics. Vitamin e production is the largest in China and the second largest producer in the world; The output of natural vitamin E is the largest in China and the third largest in the world. Guangji Pharmaceutical: Guangji Pharmaceutical is the largest riboflavin production base in China. The leading product riboflavin (namely vitamin B2) has become stronger and bigger, ranking first in the world in production and sales, and establishing a strong brand of national VB industry. The industrialized large-scale production technology of riboflavin-producing strain won the second prize of national progress and the first prize of scientific and technological progress in Hubei Province, and was evaluated as "the first technology in the world" by experts.

xinhecheng: xinhecheng is a domestic vitamin giant. the production, sales and export of its leading products, such as vitamin e, vitamin a and ethylidene, rank first in China. the company has become one of the four largest vitamin manufacturers in the world and a large-scale vitamin feed additive enterprise in China. The brand of "New Hecheng NHU" was awarded as a well-known trademark in China, and the feed-grade vitamins of NHU brand were famous products in China. Huabei Pharmaceutical Co., Ltd.: Huabei Pharmaceutical Co., Ltd. is the largest pharmaceutical enterprise in China. The company's vitamin C has successfully passed the audit of the world's largest food manufacturer and become its qualified supplier. Among them, the production and sales of penicillin, streptomycin, 6-APA, amoxicillin, cefradine and vitamin B12 are leading in China.

Northeast Pharmaceutical (joining stock selection and participating in simulated stock trading): Northeast Pharmaceutical has become one of the largest comprehensive pharmaceutical industrial enterprises in China, which mainly focuses on chemical synthesis, as well as biological fermentation and preparation products, and is also an important production and export base of pharmaceutical products in China. The company has the world's largest single 1,-ton vitamin C production line and products such as berberine, which enjoy independent intellectual property rights. Three products, sucralfate amantadine and rimantadine, have successfully passed the US FDA certification inspection. In the process of vitamin C production, the company started from the processes of fermentation, extraction, transformation and refining, boldly carried out research and innovation on new technologies and new equipment, and spontaneously developed a new process of two-step fermentation and alkali transformation, which filled the gap in China.

Xinfu Pharmaceutical Co., Ltd.: Xinfu Pharmaceutical Co., Ltd. is a high-tech listed company, the world's largest producer in calcium pantothenate and the only manufacturer of provitamin B5 in China. The company focuses on the development of pillar industries such as chemical industry (biochemical industry and fine chemical industry), new biodegradable materials and new materials for environmental protection and energy saving, and 7% of its products are sold to European and American countries and Southeast Asia. Brother Technology: Brother Technology is the largest supplier of vitamin K3 in the world. In order to further improve the product structure in the field of vitamins and meet the supply of nicotinamide, one of the raw materials needed to produce vitamin K3, the company plans to adopt the current advanced technology to build a project with an annual output of 1, tons of nicotinamide, with a total investment of 196 million yuan.

Jin Dawei: Jin Dawei is one of the well-known manufacturers of food nutrition fortifiers and feed additives in the industry.