Southeast New Materials (Hangzhou) Co., Ltd. is a wholly-owned subsidiary of Zhejiang Southeast Space Frame Co., Ltd. (stock code: 002135), an affiliate of Southeast Space Frame Group. Established in January 2011 and located in Linjiang High-tech Zone, Qiantang New Area, the company has a total investment of 2 billion yuan. It has introduced world-class production equipment such as Germany’s Barmag, boasting an annual production capacity of 500,000 tons of differentiated and functional polyester fiber products.

The company has been recognized as a National High-Tech Enterprise, a Model Enterprise for "Machine Replacement" (replacing manual labor with machinery), and a Pilot Enterprise for Factory IoT and Industrial Internet. It has also obtained certifications for quality, environment, and occupational health and safety management systems. Leveraging the Group’s Postdoctoral Research Workstation and Academician Expert Workstation, the company actively develops new types of differentiated and functional polyester fiber products. Currently, its products are sold both domestically and internationally, enjoying high popularity among users.