Yinyu cares a lot on the quality of its products,it is the only PBT producer who is walking along the line of the branding operation.The quality of its products have made Yinyu leader in China's PBT yarn industry.All of the production plants fulfil the strict requirement necessary for customers' consistent trust and long term business relationship.

The company has ISO quality management system certification.It also has ISO 9001 standard certification that covers the design, development and production of yarns in the different industrial processes.The company's commitment to conserving and improving our surroundings prompted the implementation of an ISO 14001 certified environmental management system, which guarantees preservation of the environment.