© 2026 Xiamen Changsu Industrial Co., Ltd. All rights reserved.
Founded in Xiamen; Acquired Wuxi Hongming production line; Listed as Xiamen Key Preliminary Project.
Became China's largest BOPA supplier, leading domestic capacity and market share.
Successfully retrofitted mechanical synchronous stretching production line, mastered third-generation film technology, and entered a period of building core technical barriers.
Global leader in BOPA functional capacity and market share, with business covering major countries and regions worldwide. Pioneered fourth-generation film technology with the successful commissioning of the world's most advanced maglev synchronous stretching production equipment, entering a new phase of leading global R&D and production of functional films. Became first Chinese member of FAO's SAVE FOOD initiative. Launched China's first ultra-high barrier fresh-lock BOPA (EHA), filling a gap in the international high-end market.
Launched China's first linear tear BOPA (TSA), enhancing consumer experience. Launched China's first ultra-high impact PHA-Lithium Battery Package BOPA Film, achieving import substitution.
Successfully commissioned the world's largest (at the time) 6.6-meter wide maglev synchronous stretching production equipment, adding a significant number of independently innovated and proprietary key core preparation technologies.
Pioneered fifth-generation film technology (low-carbon biaxial stretching). Established Fujian Changsu Industrial (Quanzhou). Launched China's first mass-produced, novel bio-based compostable BOPLA (BiONLY), supporting the national "Carbon Peak and Carbon Neutrality" goals.
Launched China's first bio-based BOPA (BiOPA), enabling new possibilities for green and low-carbon development. Launched China's first antibacterial BOPA, continuously safeguarding consumer health and safety. Commissioned the first 7.4-meter wide BOPA production line.
Fujian Changsu's Quanzhou production base was successfully commissioned (the industry's first integrated upstream-downstream base for functional films), marking a 2.0 upgrade of the industrial chain. Invested in and began construction of the new energy film project, laying the groundwork for advanced new energy film materials. Formed a strategic cooperation agreement with TotalEnergies Corbion to jointly promote the upgrading of the polylactic acid (PLA) industry.
Sinolong New Materials, the parent company of Changsu Industrial, completed its initial public offering (IPO) and listed on the ChiNext market | Stock Code: 301565. Sinolong New Materials and the Haicang District Government of Xiamen held an investment signing ceremony at the 24th China International Fair for Investment & Trade (CIFIT), planning to invest 2.5 billion CNY in a new energy film project. Changesu Indonesia commenced groundbreaking, marking a new phase in global expansion. Fujian Changsu's Phase II project began construction, initiating a new round of development at the Quanzhou integrated base. Functional film was listed in the National Annual Catalogue of Patent-Intensive Products. Bio-based compostable film was included in the Catalogue for Guiding the Transition of Industries to Green and Low-Carbon Energy.
The new generation of Changsu high-performance capacitor film made its global debut, marking another strategic move in the new energy advanced materials field. The BOPLA national standard, led by Changsu Industrial in drafting, was officially implemented, signifying the BOPLA industry's entry into a new phase of standardized and scaled development. Changsu Industrial successfully developed BOPA specifically for solid-state batteries. Fujian Changsu was officially certified as a National High-Tech Enterprise. Fujian Changsu's Line 2 was officially commissioned. The Party branch of Sinolong New Materials, Changsu Industrial's parent company, received the Excellence Award in the "Party Strength Driving All-Domain Empowerment" grassroots Party building innovation case. Changsu Industrial was recognized as an Outstanding Enterprise in the fourth batch of Xiamen's Independent Foreign Trade Brand Cultivation initiative.
Who We Are
Xiamen Changsu Industrial Co., Ltd. (“Changsu Industrial”), a member company of Sinolong New Materials, is a world-leading supplier of high-performance film, dedicated to the R&D innovation and intelligent manufacturing of film materials. Its subsidiaries include Fujian Changsu Industrial Co., Ltd. and PT Changsu Industrial Indonesia.
We focus on green technological film materials essential for human health and safety. With domestic industrial bases in Xiamen and Quanzhou, and an overseas base in Indonesia, our total land area isapproximately 450,000 square meters. Currently, our product portfolio encompasses high-end materials such as new energy films, bio-based compostable films, and functional films, widely used in industries including new energy (lithium batteries, solid-state batteries, wind-solar-storage systems), biomedicine, food, and daily chemicals. Notably, we are the global leader in BOPA film production and sales.
Driven by the dual engines of “forward-looking R&D” and “intelligent manufacturing”, we have established a product development model of “Explore the Future, Research the Next, Develop the Present”, achieving full-chain innovation from fundamental material research to large-scale production. On the R&D front, we have a technical team of over 100 members and have built research platforms including a National Enterprise Technology Center, a Key Laboratory for Polymer Functional Film Materials, and a CNAS-accredited Testing Center. Through deep collaboration with top-tier research institutions such as Xiamen University and Beijing University of Chemical Technology, we have achieved multiple technological breakthroughs, filling gaps in high-end markets both domestically and internationally. On the smart manufacturing front, we have mastered key preparation technologies with independent intellectual property rights, pioneered fourth-and fifth-generation film technologies, implemented full-process digital management from order to delivery, and gained significant cost advantages.
Changsu Industrial is committed to being a responsible corporate citizen, driving industrial upgrading through materials science innovation, and working hand-in-hand with global partners to create a healthier, safer, and more sustainable future.
Products
New Energy Films
Changsu Lithium Battery Film (PHA)
Successfully overcome the technical bottlenecks of the domestic industry to achieve self-substitution.
Properties: The films exhibit excellent puncture resistance, impact resistance and other properties, protect the battery substrate from damage, and resist accidental impacts to improve battery capacity.
Use: As a core material for packaging soft-pack lithium batteries, which are extensively applied in new energy vehicles, mobile phones, smart wearable devices, drones, etc.
Changsu Solid State Battery Specialised Film
New energy packaging material of the next generation.
Properties: The films exhibit excellent flexibility, puncture resistance, impact resistance, and other properties, protecting electrodes, electrolytes and other components from outside forces (such as impacts, extrusions, and frictions).
Use: As a core material for packaging solid-state batteries, which have vast potential for use in new energy vehicles, energy storage, eVTOL, humanoid robots, etc.
Changsu Battery Cell Film (Composite Current Collector Base Film)
"Trendsetter" new energy film material.
Properties: The films exhibit high energy density and high safety.
Use: As a core material for power batteries, energy storage batteries, consumer batteries, etc.
Changsu Capacitor Film
"High precision" new energy film material.
Properties: The films exhibit high voltage resistance, high temperature resistance, and long service life.
Use: For new energy vehicles, photovoltaic systems, wind power systems, household appliances, etc.
Functional Film Materials--Ultrany
World's largest BOPA film producer and seller, with a 20% global market share.
Properties: The films exhibit excellent tensile strength, puncture resistance, printability, good oxygen barrier properties, chemical resistance, and wide temperature range usability.
Use: Widely used in the mass consumer sector (food, daily chemicals, pharmaceuticals, industrial products, etc).
Functional Film Materials--Supamid
Key material for preserving fresh produce, ensuring safe and healthy consumption.
Properties: The films exhibit excellent oxygen barrier properties, easy-tear linearity, anti-bacterial properties, etc.
Use: Supplies new consumer brands with packaging materials. Through physical preservation methods, the films help extend the shelf life of food, ensure food security and protect public health, hence winning the reputation of being the "chip" of packaging materials.
Functional Film Materials--BioPA
Combining "Low Carbon Footprint" with "High Performance".
Properties: The films exhibit low carbon footprints and are eco-friendly, having a lower carbon footprint than traditional plastics; exhibiting excellent tensile strength, impact resistance, puncture resistance, good toughness and excellent barrier properties.
Use: Widely used in the mass consumer sector (food, daily chemicals, pharmaceuticals, industrial products, etc).
Bio-Based Biodegradable Film Material--BiONLY
To support China's "peak carbon emissions, carbon neutralisation" objectives, and promote green development.
As the first to achieve large-scale production in China, it is a revolutionary green technology product.
Properties: The films exhibit controllable degradation, good tensile strength, high transparency, high gloss, sealing ability, and excellent printability.
Use: Extensively used in e-commerce logistics, flower and plant packing, high-end food packaging, electronic product packaging, publication and printing, clothing, etc.
Awards & Certifications
National Enterprise Technology Centre
National Level Manufacturing Single Champion Demonstration Enterprise
National Green Factory
National Green Supply Chain Management Enterprise
National Specialised and Sophisticated "Little Giant" Enterprise
National Intelligent Manufacturing Pilot Demonstration Project
National High-tech Enterprise
China Manufacturing Invisible Champion
First Prize for Innovation Achievement in China Industry-University-Research Cooperation
National Intellectual Property Advantage Enterprise
First Chinese Member of the UN FAO "SAVE FOOD" Initiative
……
Company Culture
Company Business Philosophy: Respect for Nature, Joy in Collaboration
Mission: Provide green technology materials for human health and safety
Vision: Become the World’s Strongest Supplier of High-Performance Film Materials
Core Values: Continuous Innovation, Efficient Collaboration, Responsibility and Perseverance, Learning and Growth
Management Concept: Empower Talent, Customer-Centric Continuous Innovation
BOPP Capacitor Film
