Technological Innovation Takes China's Membrane Technology to the World
The nation highly values the development of private enterprises. As a key force driving economic growth, promoting innovation, and enhancing international competitiveness, private enterprises are seen as a vital force in advancing China's modernization. Recently, authoritative media outlets such as CNR.cn, Xinhua News Agency, People's Daily Online, Reform.cn, Xiamen Daily, Xiamen Radio and Television, and Haixi Morning Post have focused on reporting Changsu Industry's achievements in cultivating the "high-precision" materials sector and contributing to the high-quality development of China's new materials industry.
Xinhua News Agency:
With a 20% global market share and business spanning over 40 countries and regions, Changsu Industry, a Chinese private enterprise originating from Haicang, Xiamen, is at the forefront of this "membrane revolution." Its 100-meter-long world-class new energy film production line operates smoothly in its cleanroom in Haicang, resembling an "industrial artery." As one of the world's largest BOPA (biaxially oriented polyamide film) manufacturers, Changsu Industry has completed a remarkable transformation from a "hidden champion" in functional membrane materials to a global technology leader in new energy membrane materials.
People's Daily Online:
Changsu lithium battery film, Changsu vector film, and other new film materials have entered the supply chains of internationally renowned companies thanks to their stable quality and technological advantages. From "Made in China" to "Intelligent Manufacturing in China," from "product export" to "brand establishment," the stories of Chinese brands "going global" share a common foundation: winning respect through technology, winning hearts through service, and establishing a foothold in the market through long-termism. They are not merely "going out," but "going in"—entering the cultural contexts of different countries, into the daily lives of local users, and into the core areas of the global industrial chain.
Reform.cn:
In March 2025, Changsu Industry successfully developed the industry's first BOPA specifically for solid-state batteries, filling a technological gap in the industry. In terms of new energy layout, the company invested 2.5 billion yuan to build a new energy film material project, producing two high-end new materials: ultra-thin capacitor film and composite current collector base film. These "future materials," due to their excellent high-temperature resistance and voltage resistance, have become key materials for the new energy industry.
Xiamen Daily:
A nearly 100-meter-long world-class new energy film production line comes into view—from the material hoppers in the feeding area to the melt extruders, to the precision chain clamps densely packed in the stretching area, and finally to the winding and slitting devices, the highly automated production equipment is all installed. It is expected that this technologically advanced production line will be operational in October this year, producing ultra-thin capacitor films. This is an important measure for Changsu Industry to enrich its high-precision product portfolio and enhance its market competitiveness.
Xiamen Broadcasting:
Behind the deployment of the world's most advanced new energy film materials is Changsu Industry's forward-looking product development and technological reserves. Compared with other similar production lines, the company relies on its independently developed fifth-generation low-carbon biaxial stretching technology for film materials, achieving advantages such as wider production width, faster production speed, and lower carbon emissions. Changsu Industry adopts a product development model of "exploring one generation, pre-researching one generation, and developing one generation," accelerating the transition from R&D to industrialization. Currently, the company has more than 200 core patents in key technology areas.
Haixi Morning Post:
Driven by technological innovation, Changsu Industry has continuously broken industry records: the first domestically produced ultra-high barrier functional membrane material, the first new bio-based biodegradable membrane material, the first new energy membrane material that breaks through the "bottleneck" problem, the first BOPA for solid-state batteries... Behind a series of "firsts" is the company's persistent cultivation of the new materials industry, and it is also a vivid microcosm of Chinese manufacturing moving towards the global high-end value chain.
