Castles Technology Co., Ltd. announced the establishment of a company audit committee. Name of the new position holder: Gong Hsi-Hsun(Independent Director); Kung Hsin-Kai(Independent Director); Huang Nai-Kuan(Independent Director). Resume of the new position holder: Gong Hsi-Hsun: COS Engineering Co., Ltd. Chairman and General Manager; Kung Hsin-Kai: SIM Card CPAs Firm, CPA; Huang Nai-Kuan: RFIC Technology Corporation Director Everlasting Digital ESG Co., Ltd. Director. Effective date of the new members: August 24, 2021.