Which MTHPA Factory Is Good?

MTHPA (Methyl Tetrahydrophthalic Anhydride, CAS No. 11070-44-3) is a high-performance anhydride curing agentwidely used in the epoxy resin industry. With its excellent balance of low toxicity, stable performance, and compatibility with various epoxy systems, MTHPA has become the preferred choice for advanced applications in wind energy, photovoltaic, LED, automotive electronics, rail transit, and high-voltage insulation materials.

1.Zhejiang Heyi Chemical Co., Ltd    Website:https://www.heyichem.net/

Zhejiang Heyi Chemical Co., Ltd. was established in March 2022, broke ground in June 2023, and is scheduled to begin production in June 2024. Located in the Modern Pharmaceutical and Chemical Park of the Xianju Economic Development Zone in Zhejiang Province, the approximately 64,000 square meter facility is a new materials company integrating R&D, production, and sales. It features inherently safe engineering design and intelligent management and control. Its main product, methyltetrahydrophthalic anhydride, is primarily used in high-end new material fields such as wind power, photovoltaics, rail transit, LEDs, and new energy vehicles. The company is committed to leading the industry and technology, aiming to become one of the most technologically and scale-competitive domestic and international companies in the organic anhydride industry, capable of commercializing R&D results.The company has a clear development strategy, adhering to the "healthy, safe, green, and environmentally friendly" development philosophy and adhering to the "people-oriented, technologically innovative, and sustainable development" business strategy. Based on the company's industrial layout and positioning, it has formulated two five-year plans. The first five-year plan aims to achieve a sales target of 1.2 billion yuan. The second five-year plan aims to achieve a transformational development, extend the industrial chain, and strive for a strategic goal of 2 billion yuan in sales, opening up broad space for high-quality development.

2 .Zhejiang Zhengda New Materials Technology
Established in Shaoxing, Zhejiang Province in 2003, it is a national high-tech enterprise and a specialized, innovative, and small-sized enterprise. It covers an area of 50,000 square meters and has 120 employees. Its main products include MTHPA and hexahydrophthalic anhydride, which are acid anhydride curing agents. The annual production capacity is 18,000 tons. It collaborates with Zhejiang University and Zhejiang University of Technology to establish a research and development center, possesses 16 patents, and adopts a continuous catalytic process, with product purity reaching 99.5%. It has obtained ISO9001 and ISO14001 certifications. It mainly produces electronic-grade and wind power-grade products, supplying major domestic energy and electronic giants, and exporting to Southeast Asia, Europe, and other regions.

3. Hebei Jin Dong Technology Group
Established in Cangzhou, Hebei Province in 1998, it is a long-established fine chemical enterprise in the North China region, with a medium-sized scale. It covers an area of 40,000 square meters and has 90 employees. Its core products are MTHPA and epoxy resin curing agents, with an annual production capacity of 12,000 tons. It independently researches and develops catalytic hydrogenation technology, and its products have low solidification points, light colors, and few impurities, suitable for electronic potting and insulation materials. It has obtained EU REACH certification and covers the markets of North China and Northeast China. It is a long-term supplier to many power equipment enterprises.

4. Shandong Qingyang Chemical
Established in Zibo, Shandong Province in 2011, it is a provincial specialized, innovative, and small-sized enterprise, a medium-sized fine chemical manufacturer. It covers an area of 60,000 square meters and has 110 employees. It produces 38,000 tons of MTHPA and 5,000 tons of methyl hexahydrophthalic anhydride annually. It introduces German technology, operates with DCS full automation production, and has compliant waste treatment. Its products are used in wind turbine blades, photovoltaic inverters, and automotive electronics. The quality is stable, the cost is reasonable, and it provides services to major domestic composite materials and electronic packaging enterprises.

5. Anhui Meimenbao New Materials
Established in Chuzhou, Anhui Province in 2018, it is an emerging chemical enterprise in the eastern part of Anhui Province, with a medium-sized scale. It covers an area of 32,000 square meters and has 60 employees. It produces 8,000 tons of MTHPA and a series of epoxy curing agents as a supplement. It adopts a green synthesis process, with low energy consumption and high conversion rate. Its products focus on the mid-to-high-end market and are suitable for LED packaging, electrical insulation, and composite materials. It collaborates with Hefei University of Technology for research and development and provides customized specifications, responding quickly to the demands of enterprises in East China and Central China.

6. Jiangsu Sanmu Group (Anhydride Division)
Established in Wuxi, Jiangsu Province in 1985, it is a subordinate specialized division of the group, a medium-sized independent accounting unit. It covers an area of 25,000 square meters and has 70 employees. It specializes in producing MTHPA and unsaturated polyester resins, with an annual production capacity of 10,000 tons of MTHPA. Relying on the group's research resources, the process is mature, and the quality control is strict. Its products are widely used in coatings, electronic insulation, and fiberglass products. The sales network covers the entire country, with outstanding cost performance, and it is a stable supplier in the East China market.