Qualitech Public Company Limited informed that the Board of Director's Meeting No. 5/2024 held on April 2, 2024 has passed the material resolution as follows: To acknowledge the resignation from the director Mr. Somkiat Aramruangkul has resigned from the Director effective March 31, 2024 onwards. To appoint Directors in replacement of the vacant positions are as follows: Mr. Sitthi Ngamlumyoung to be the independent director and member of the audit committee in replacement of Mr. Lersak Kancvalskul (who resigned on March 7, 2024).

Mr. Phethai Wattanasiri to be the independent director in replacement of Mr.Somkiat Aramruangkul The effective is April 2, 2024, onwards and will hold positions for the remaining term of the resigned director. The Audit Committee: Mr. Thatchaphong Thamputthipong independent director /Chairman of the Audit Committee; Colonel Assoc. Prof. Dr. Chanyapat Wiphatthannananthakul, independent director /The Audit Committee; Mr. Sitthi Ngamlumyoung independent director /The Audit Committee.