Breaking Through ‘Chokepoint’ Technology: China Risun’s Hexamethylenediamine Plant Commenced Production
HONG KONG, May 4, 2026 – (ACN Newswire via SeaPRwire.com) – At 6:18 a.m. on May 4, 2026, with the successful completion of the final production process, China Risun Group’s 50,000-ton/year caprolactam-to-hexamethylenediamine (HMDA) plant at the Yuncheng Production Base was fully integrated, achieving a one-time successful start-up and producing qualified products. By directly producing HMDA from caprolactam, China Risun has broken the long-standing foreign monopoly on adiponitrile technology (adiponitrile is the key raw material for HMDA, the intermediate for nylon 66, and is regarded as the “throat” of the nylon industry chain). This breakthrough in “chokepoint” technology lays the foundation for China Risun’s strategic deployment in high-end new materials, gradually building a million-ton-scale “nylon 6 + nylon 66 + specialty nylon” industrial cluster, and establishing a national-level nylon new materials base.Industry Background and Current Developm…






