Anhui Wanwei Group Co., Ltd. has attained mastery over a vast array of crucial technologies for PVA production through continuous technological innovation and upgradation. This proficiency enables the company to produce polyvinyl alcohol (PVA) products with varying degrees of polymerization and alcoholysis. Its PVA production process is fully integrated with PLC and DCS distributed system control technology. It has successfully achieved certification under the ISO9001 Quality Management System and ISO14001 Environmental Management System, reflecting the company's commitment to excellence and sustainability.

Originating from the Anhui Vinylon Factory, established in 1969, Wanwei Group was listed on the Shanghai Stock Exchange in May 1997. In 2000, the company underwent a name change to "Anhui Wanwei Advanced Materials Co., Ltd." After nearly three decades of development, the company has emerged as the largest producer of polyvinyl alcohol (PVA) series products in China, boasting the most advanced technology, comprehensive industrial chain, and the widest range of product varieties. With PVA as it's core and high-end functional membrane materials as its leader, Wanwei Group has cultivated five major industrial chains, encompassing chemicals, chemical fibers, new materials, and building materials, offering over 40 products across four major series. As a significant integrated manufacturer in the chemical, chemical fiber, building materials, and new material industries in Anhui Province, the company boasts total assets exceeding 10 billion yuan, annual sales revenue of 10.206 billion yuan, and export earnings surpassing 300 million US dollars. The company's primary business revolves around the research, development, production, and sales of polyvinyl alcohol (PVA) and its derivative products.

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During the "13th Five-Year Plan" period, guided by industrial restructuring, the domestic polyvinyl alcohol (PVA) industry embarked on a capacity reduction initiative. Currently, only eight enterprises in the country retain their PVA production capacity, with a combined output of 1.096 million tons, significantly enhancing the concentration of the industry. Among these, only Wanwei Hi-Tech is planning to expand its production capacity. Additionally, Wanwei adheres to a low-carbon economic development path. Its wholly-owned subsidiary, Guangxi Wanwei Biomass Technology Co., Ltd., utilizes the local abundance of sugarcane resources to produce PVA, pioneering a third raw material route beyond the traditional calcium carbide acetylene method and petroleum/natural gas ethylene method, laying a solid foundation for the company's sustainable development. Furthermore, Wanwei's holding subsidiary, Mengwei Technology, leverages the rich resources of coal, electricity, and calcium carbide in Inner Mongolia, along with the company's comprehensive PVA production technology, to construct production facilities in phases, capable of annually producing 200,000 tons of vinyl acetate and 100,000 tons of PVA. With an annual PVA output of 250,000 tons, accounting for more than 20% of the national total, Wanwei's product capacity leads the industry.

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