Mr. Nattapong Seetavorarat During 6 June 2019 to 27 May 2020, Mr. Nattapong Seetavorarat failed to report his acquisition and disposition of Simat Technologies Public Limited (“SIMAT”) shares held in

Mr. Thanayous Kositsakul During 13 November 2018 to 16 November 2018, Mr. Thanayous Kositsakul failed to report his acquisition and disposition of Simat Technologies Public Limited (“SIMAT”) shares

Mr. Supant Mongkolsuthree Mr. Supant Mongkolsuthree, President and Chief Executive Officer of T.K.S. Technologies Company Limited (“TKS”) during the time of incident had changed securities holding of