June 29, 2025 –
Shanghai’s Puxijing New Materials Secures 500M Yuan Investment for Specialty Polymer Expansion
AsiaMB Exclusive – Puxijing New Materials has closed a landmark 500 million yuan Series B+ funding round, marking a significant milestone for China’s specialty polymer sector. Zhejiang Energy Group led the investment consortium in this latest financing, which follows previous backing from Sequoia Capital China and other prominent investors.
The fresh capital injection will accelerate completion of Phase 1 at the company’s Jinshan production complex within Shanghai Chemical Industry Park. When operational, this facility is projected to become one of the world’s largest ultra-high-purity, high-molecular-weight polyethylene production bases, boasting an annual capacity of 280,000 metric tons.
“Puxijing’s technological breakthroughs in lithium battery separator materials have positioned them as a global leader,” commented a Zhejiang Energy Group representative. The company’s proprietary 5-9μm purity separator materials currently outperform most international competitors in critical performance metrics.
Beyond energy storage applications, Puxijing has diversified into multiple high-tech sectors. Its polymer solutions now enable advancements in medical devices, semiconductor filtration systems, and specialized fibers. The company recently expanded through its Longpu Technology subsidiary, initiating a 130 million yuan wet-process lithium battery separator project in Quzhou.
Industry analysts highlight this funding round as particularly noteworthy given current market conditions. “The strong show of confidence from industrial investors validates Puxijing’s technical capabilities and market positioning,” noted an AsiaMB industry consultant. With the Jinshan facility nearing completion, the company is poised to significantly enhance China’s self-sufficiency in advanced polymer materials.