The 11th Revised Edition of the United Nations' Globally Harmonized System of Classification and Labeling of Chemicals (GHS Rev. 11) was officially released on September 12,2025.Major countries and regions worldwide have synchronously updated their GHS implementation regulations.To comply with the GHS regulatory requirements of various countries,the GHS information on the labels of all TIANGEN products will be updated accordingly. The changes to the inner and outer labels of products after the GHS information update are shown in the example figure below:

Comparison of GHS Information on Product Inner Labels Before and After Update (Example Figure)

Comparison of GHS Information on Product Outer Labels Before and After Update (Example Figure)

Specifically, exported products will adopt the new labels with updated GHS information starting from December 8, 2025.For domestic trade products, the new labels will be implemented on January 1, 2026.During the transition period, both old and new labels (with respective GHS information) may coexist and be used simultaneously. We sincerely apologize for any inconvenience this may cause.

Please be advised. Should you have any questions, please contact the person in charge of this notice. Thank you!

Marketing Department of TIANGEN                                                                                                                                                                             

December 8, 2025