Documents and Environmental Regulations文件與環保法規

A mill test certificate is a document issued by the company that made the material. It lists test results such as grade, batch (lot) number, chemical composition, and mechanical properties. It is used to show that the material meets the ordered specification.

RoHS is the EU directive on hazardous substances (Directive 2011/65/EU). It limits lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four phthalates (DEHP, BBP, DBP, DIBP) in electrical and electronic equipment. Limits apply to each "homogeneous material": 0.01% for cadmium and 0.1% for each of the others.

When no suitable substitute material exists yet, RoHS lets a product use certain substances above the limits. These exemptions are listed in Annex III of the directive and have end dates. The lead exemptions related to metals are: steel (machining steel, lead up to 0.35%; batch hot-dip galvanized steel components, lead up to 0.2%), aluminum (only aluminum made from recycled lead-bearing aluminum scrap, or aluminum for machining, lead up to 0.4%), and copper alloy (lead up to 4%). Each exemption has an expiry date, so please check the latest EU notice before you rely on one.

REACH is the EU regulation on the registration, evaluation, authorization, and restriction of chemicals (Regulation (EC) No 1907/2006). Two parts matter most for metals. One is the list of substances of very high concern (SVHC): if any SVHC in an article is above 0.1%, the supplier must give safe-use information to the next buyer. The other is the restrictions in Annex XVII, such as limits on nickel, lead, and cadmium in certain end products. The 0.1% figure is a reporting threshold, not a ban limit.

California Proposition 65 is a warning-label system. It is not a ban or a content limit. The list covers hundreds of chemicals that cause cancer or reproductive harm. If a person's exposure from using a product is above the safe harbor level, the product must carry a clear and reasonable warning. Metals-related substances on the list include lead, nickel, beryllium, and cobalt.

PFAS is the short name for per- and polyfluoroalkyl substances. They are a large group of man-made chemicals that contain carbon-fluorine bonds. They resist heat, oil, and water, and they break down very slowly, so they are often called "forever chemicals". Under the 2021 OECD definition, a substance is a PFAS if its molecule has at least one fully fluorinated methyl (–CF₃) or methylene (–CF₂–) carbon atom.

Conflict minerals are minerals from areas of armed conflict or human rights abuse. The term usually means tin, tantalum, tungsten, and gold (3TG). Customers often ask suppliers to fill in survey templates from the Responsible Minerals Initiative (RMI). The CMRT covers 3TG. The EMRT also covers cobalt, copper, natural graphite, lithium, natural mica, and nickel. Sursun Metals reviews its supply chain using the RMI survey framework.

Sursun Metals has RoHS test reports from third parties such as SGS, and our materials meet RoHS requirements. For details, please refer to the report for each material.

Sursun Metals reviews its supply chain using the RMI survey framework and works to avoid minerals from areas of armed conflict or human rights abuse.