Longshan's 30-year journey in high-end modified plastics — powered by 60+ patents, automated production, and unwavering commitment to quality and innovation.
Jiangyin Longshan Synthetic Materials Co., Ltd. has dedicated itself to high-end modified plastics since 1996 — integrating R&D, production, and sales under one roof. Now a nationally recognized High-Tech Enterprise and "Little Giant" company, Longshan serves global clients with customized, quality-assured plastic solutions built to last.
Our subsidiary Wuxi Aliz 3D Technology Co., Ltd. extends our reach into 3D printing materials, bringing the same commitment to precision that defines everything Longshan makes.
With a professional R&D team, complete testing equipment, and strict quality control system, we continuously promote technological innovation and product upgrading to meet the diversified needs of global customers.
Create high-value polymer materials, promote industrial upgrading, and contribute to a smarter and more sustainable future.
Become a world-leading high-end modified plastic solution provider and a benchmark enterprise in the new material industry.
Integrity-based, Innovation-driven, Quality-first, Customer-centric, Win-win cooperation.
Longshan owns a modern production base of over 20,000 square meters, equipped with fully automated production lines and advanced testing equipment. Our R&D center gathers senior engineers and material experts to provide strong technical support for product innovation.
National-level certification
Specialized & Sophisticated Enterprise
ISO9001/14001/TS16001
International Safety Standard
Environmental Protection Certification
Panasonic Certified Supplier
60+ Utility Patents
AAA Level Credit Rating
Three decades of deliberate growth — hover each card to explore.
In-house lab since 2001. 60+ utility patents. Continuous material science research and formulation development for custom applications worldwide.
Automated production lines commissioned 2012. Precision manufacturing with SPC monitoring. Reliable, consistent output for global OEM partners.
ISO 9001 / 14001 / TS 16949 multi-system certified. UL Yellow Card. RoHS-compliant since 2005. Zero-compromise quality at every process step.
Long-term Panasonic supplier. International brand partnerships. Application-specific custom material engineering — not catalog products.
Longshan will continue to deepen technology innovation and management excellence — focused on premium customization, not indiscriminate scale. Guided by quality and service, we will steadily expand into automotive, build toward a platform enterprise, and set the benchmark for high-end modified plastics in China and globally.
Jiangyin Longshan Synthetic Materials Co., Ltd. is a modified plastics company integrating R&D, production and sales, specializing in the development of medium and high-end modified materials.
R&D Laboratory / 研发实验室
Automated Production Line / 自动化产线
Factory & Lab Overview / 工厂实验室全景