To further optimize service workflows and improve your inquiry experience, we will fully upgrade and revamp our existing report and certificate inquiry system and methods effective from the release date of this notice.

To keep pace with industry development, better meet customers’ growing demands and deliver higher-quality, more convenient experiences for visitors, we have completed meticulous preparations for the official website upgrade. The new website went live on April 8, 2025. This website upgrade is Tongzhou Testing‘s in - depth implementation of its digital strategy, demonstrating our determination to embrace changes and keep innovating....

In this rapidly changing business era, the establishment and upgrading of a company represent an innovation and transformation, as well as setting sail anew in pursuit of dreams. Tongzhou Testing, as the guardian of product quality you can trust and the witness of export certifications, is honored to announce that we have successfully completed the renovation and upgrading of the company‘s office environment, the supplementation and improvement of laboratory testing equipment, and the optimization of internal efficient operation processes. A brand - new environment is waiting for every dr...