Certificate of completion for online safety assessment course in cosmetics, issued by Vrije Universiteit Brussel to Chen, dated May 23, 2022, with signatures and university seal.

歐盟化妝品安全評估人員資格

Certificate of completion for Hsieh at Kaohsiung Medical University, Taiwan, dated April 30, 2021, with signatures and a red stamp.

台灣化妝品安全評估人員資格

Training certificate from the Taiwan Accreditation Foundation, awarded to an individual for successfully completing a training session from May 28 to 29, 2024, signed by the President of the Taiwan Accreditation Foundation, dated June 3, 2024.

測試實驗室主管訓練資格

Certificate of completion for Taiwan Biological Safety Management training, with ornate border, Chinese text, and a red seal stamp.

生物安全管理人員資格