We conduct 100% incoming material inspection for all raw materials, plates, inks, copper foils, and auxiliary materials that enter the factory. The quality inspection team examines each item in detail regarding the material specifications, material parameters, and qualification certificates, and conducts sampling performance tests on key raw materials to prevent any unqualified, non-compliant, or abnormal batch materials from entering the production process.

We have long maintained deep cooperation with leading raw material brands in the industry, establishing strict supplier admission and rating mechanisms to ensure stable supply chain quality. At the same time, we have improved the management of raw material ledgers and batch traceability archives, ensuring that all material batch information is fully archived and traceable, allowing for verification and tracing throughout the production process, thus cutting off potential quality risks at the source.