In order to further optimize the service process and enhance your query experience, starting from the date of this notice release, our company will comprehensively upgrade and change the existing query system and query methods. This change aims to use more advanced technology to ensure that you can query your report and certificate information more quickly and conveniently...

In line with the development of the industry, in order to better meet customers‘ ever - increasing demands and bring more high - quality and convenient experiences to visitors, meticulous preparations have been made to upgrade the official website, which was launched 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...