ASE Technology Holding Co., Ltd.

We have adopted a Code of Business Conduct and Ethics (the “Code of Ethics”), which satisfies the requirements of Item 16B of Form 20-F and applies to all employees, officers, supervisors, and directors of our Company and subsidiaries, including our principal executive officer, chief financial officer, and principal accounting officer. The Code of Ethics contains the policies with respect to anti-corruption, fair competition, anti-money laundering, whistleblowing, and regulatory compliance. The robust and effective policies and procedures have been built in the Code of Ethics to enable us to persistently maintain high ethical standards of business conduct. We have continued to implement the Code of Ethics through promoting awareness and educational activities among our employees, officers, supervisors, and directors of our Company and subsidiaries in daily operation. For further details on the Code of Ethics, please refer to our website athttps://ir.aseglobal.com/html/ir_doc.php