Pursuant to Article 11, Paragraph 2 of the Act on External Audit of Corporations, etc., the Company has entered into a contract with an external auditor designated by the Securities and Futures Commission and hereby announces the following in accordance with Article 12 of the Act.

- Below -

1. External Audit Firm: Samil PWC

2. Audit period (3 years) : 8th ~ 10th period (January 1, 2022 ~ December 31, 2024)

SIMMTECH Co,. Ltd.

CEO Si-don Choi