| 21/03/2018 | Notice of Invitation to the 2018 AGM Available on Corporate Website |
| 16/03/2018 | Subsidiary's re-acquisition of GIDEC's common stocks from EGCO |
| 09/03/2018 | Agenda for the 2018 Annual General Meeting of Shareholders |
| 08/03/2018 | Exercise schedule and price for the warrants to purchase ordinary shares of the International Engineering Public Company Limited No. 2 (IEC-W2) 8 round of exercise ( March 2018 ) |
| 02/03/2018 | Delayed Submission of year 2017 Financial statements Ending 31 December 2017 |
| 28/02/2018 | Result of shareholder Participation in Proposing Agenda of Meeting and Nominating Candidate (s) for Director in the 2018 AGM |
| 27/02/2018 | Disposition of investment in subsidiary and sales of right of claim the Company owed to the subsidiary to a third party |
| 12/02/2018 | Deposit Lawsuit against Biogas power plant project in Kamphaeng Phet province |
| 03/01/2018 | Report on the results of the Exercise of IEC-W2 (F53-5) |
| 08/12/2017 | Report on the results of the sale of securities (F53-5) |