Power Solution Technologies Public Company Limited at its Board of Directors' meeting held on 12 November 2021 appointed Mr. Rachanan Chanamai as the director and the member of the Executive Committee of the Company which shall be effective on 15 November 2021 onwards. Approve the change of authorized director as follows- Existing: "Mr.Kampol Tatiyakavee, Miss Piyapat Suwannasang, Mr. Prachaya Niyomthai or Mr. Luechai Soodsakorn, two directors signed and affixed the seal of the company." New - "Mr.Rachanan Chanamai, Miss Piyapat Suwannasang, Mr. Prachaya Niyomthai or Mr. Luechai Soodsakorn, two directors signed and affixed the seal of the company".