| 01/04/2019 | Reports on the operating results for 2016 |
| 25/03/2019 | Result of the Case for Claiming Deposit Against Biogas Power Plant Project in Kamphaeng Phet Province |
| 19/03/2019 | Announcement of Special Holiday |
| 07/03/2019 | Notice of Invitation to the 2019 AGM Available on Corporate Website |
| 06/03/2019 | Exercise schedule and price for the warrants to purchase ordinary shares of The International Engineering Public Company Limited No. 2 (IEC-W2) 12 round of exercise (March 2019) |
| 14/02/2019 | Agenda for the 2019 Annual General Meeting of Shareholders |
| 30/01/2019 | Report of the utilization of Capital Increase Fund |
| 08/01/2019 | Report on the results of sales of securities (F53-5) |
| 18/12/2018 | Reports on the operating results for Quarter 3/2016 |
| 18/12/2018 | Reviewed Quarter 3 and Consolidated F/S (F45-3) |