To verify the authenticity of wire material RoHS certification, you can quickly judge it using the "three-step check": Look at the report. The footer of a legitimate report must contain a "report query website" and a 10-digit number; if there is no website, no number, or the format is rough, it is directly judged as fake. Go to the official website. Enter the "report number + applicant company name" in the website provided in the footer of the report. If it can be found and the product model and date are completely consistent with what you have in hand, it is authentic; if it cannot be found or the information does not match, it is fake. Check the institution. If the report is issued by SGS / TÜV / UL, etc., you can go to the "Report Verification" section of the official website of that institution for a second review; at the same time, check whether the report seal and QR code watermark are clear and consistent. In a nutshell: first find the query website in the footer of the report. If it can be found and the information matches 100%, it is authentic; if it cannot be found or the information does not match, it is fake.