Goldenmax International Group Ltd. is a national high-tech enterprise located in Shanghai, China. The company specializes in the research, production, and sales of copper-clad laminates for printed circuit boards. Its main products include copper-clad laminates and related products for printed circuits. 

The company owns two brands, "Jinan" and "Guoji," with "Jinan" being one of the highest quality copper-clad laminate brands in the industry. The company holds patents for manufacturing methods of halogen-free FR-4, high-temperature resistant copper-clad laminates, high CTI copper-clad laminates, and high thermal conductivity copper-clad laminates. It is a member of the China Printed Circuit Association (CPCA) and the Copper Clad Laminate Materials Branch (CCLA), as well as a bank-credited AAA-level enterprise. 

The company has received honors such as the "National Torch Program Project Certificate," "Shanghai High-Tech Enterprise," and "Shanghai Famous Trademark Certificate." On September 10, 2022, the company changed its Chinese name from "Jinan Guoji Technology Co., Ltd." to "Jinan Guoji Group Co., Ltd."