Disclosures: National Marine Dredging Co. By Circulation of Board Meeting to be held on 18/05/2023 at 15:00

Disclosures: National Marine Dredging Co. AGM Minutes held on 28/04/2023 at 15:00

Disclosures: National Marine Dredging Co. Management Discussion and Analysis Report for the Period Ended March 31,2023

Disclosures: National Marine Dredging Co. Financial Results for the Period Ended March 31,2023

Disclosures: NMDC- NPCC contract termination

Disclosures: National Marine Dredging Co. AGM Results held on 28/04/2023 at 15:00

Disclosures: National Marine Dredging Co. Board Meeting Results held on 28/04/2023 at 18:00

Disclosures: National Marine Dredging Co. By Circulation of Board Meeting to be held on 28/04/2023 at 18:00

Disclosures: National Marine Dredging Co. Postponement of Board Meeting

Disclosures: National Marine Dredging Co. Announcement of Board Meeting to be held on 27/04/2023 at 16:30

Disclosures: National Marine Dredging Co. Corporate Governance Report for the year December 31,2022

Disclosures: NMDC-Letter of recommendation to the Company's Shareholders to Approve the Acquisition of Assets