Zhejiang Heyi Chemical Co., Ltd. is a new material enterprise integrating R&D, production and operation. It has intrinsically safe engineering design and information-based intelligent management and control. Its main product, methyltetrahydrophthalic anhydride, is mainly used in high-end new material fields such as wind power, photovoltaics, rail transit, LED, and new energy vehicles. The company will be committed to industry navigation and technology leadership, and plans to become one of the most technologically and scale-competitive enterprises in the organic anhydride industry at home and abroad with the ability to transform R&D results.

Largest production capacity, price advantage - superior product quality, low toxicity and environmental protection - suitable for high-end electronics, wind power, and new energy vehicles. It is China's leading MTHPA (methyltetrahydrophthalic anhydride) manufacturer. We operate one of the largest MTHPA production facilities in the country with an annual production capacity of 80,000 tons, ensuring high purity, stable quality and reliable global supply.