Lin Frank Hurst sold GCT

Footnotes

Represents 129,796 class A ordinary shares sold by DCM IV, L.P ("DCM IV") and 3,301 class A ordinary shares sold by DCM Affiliates Fund IV, L.P. ("Affiliates IV").; Represents the weighted average sale price. The lowest price at which shares were sold was $30.00 and the highest price at which shares were sold was $30.96.; Includes class A ordinary shares directly held by each of DCM IV, Affiliates IV, DCM IX, L.P. ("DCM IX") and DCM Affiliates Fund IX, L.P. ("Affiliates IX").; DCM Investment Management IV, L.P. ("DGP IV") is the general partner of each of DCM IV and Affiliates IV. DCM International IV, Ltd. ("UGP IV") is the general partner of DGP IV. DGP IV and UGP IV may each be deemed to have sole voting and investment power over, and may be deemed to be an indirect beneficial owner of, the securities held by DCM IV and Affiliates IV.; DCM Investment Management IX, L.P. ("DGP IX") is the general partner of each of DCM IX and Affiliates IX. DCM International IX, Ltd. ("UGP IX") is the general partner of DGP IX. DGP IX and UGP IX may each be deemed to have sole voting and investment power over, and may be deemed to be an indirect beneficial owner of, the securities held by DCM IX and Affiliates IX.; Frank Hurst Lin ("Lin") and Matthew C. Bonner ("Bonner") are the directors of UGP IV and UGP IX and may each be deemed to have share voting and investment power with DGP IV, UGP IV and DGP IX and UGP IX over, and may be deemed to be an indirect beneficial owner of, the securities held by DCM IV, Affiliates IV, DCM IX and Affiliates IX.; DGP IV, UGP IV, DGP IX, UGP IX, Lin and Bonner each disclaim beneficial ownership of the reported securities, except to the extent of any pecuniary interest therein. This report shall not be deemed an admission that any of the reporting persons is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.