Mr. Sarath Teganjanavanich During the period of 9 to 16 October 2015 and 12 to 26 April 2016, Mr. Sarath Teganjanavanich, Vice President of Business Planning and Finance of Thai Optical Group Public

Miss Malita Limlomwongse During the period of 9 to 16 October 2015 and 12 to 26 April 2016, Mr. Sarath Teganjanavanich, Vice President of Business Planning and Finance of Thai Optical Group Public

Mrs. Chamaiporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the

Miss Natthaporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the

Miss Lalinporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the inside

Mr. Permsin Yongvongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the inside