The ROHS certificate indicates that a product meets certain environmental standards and is free of certain hazardous substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE).

ISO (International Organization for Standardization) certificate is a certification that indicates a company's compliance with internationally recognized standards in quality management, environmental management, occupational health and safety, information security, and other areas. The ISO certification process involves a rigorous audit of a company's processes, procedures, and systems to ensure that they meet the requirements of the relevant ISO standard.