Disclosures: National Marine Dredging Co - Uncollected cash dividends distributions by the Shareholders for the period before 1 March, 2015.

Disclosures: National Marine Dredging Co. AGM Minutes held on 14/12/2020 at 16:00

Disclosures: National Marine Dredging Co. AGM Results held on 14/12/2020 at 16:00

Disclosures: National Marine Dredging Co - Uncollected cash dividends distributions by the Shareholders for the period before 1 March, 2015.

Disclosures: NMDC - Shareholder’s letter regarding the proposed transaction

Disclosures: NMDC GAM - Newspaper publication

Disclosures: NMDC - Disclosure Clarifying Attendance at the AGM Meeting and Approving Proxies

Disclosures: NMDC - Clarifying disclosure regarding the approval of agencies

Disclosures: National Marine Dredging Co. Invitation to Attend AGM to be held on AGM at 14/12/2020

ADX Disclosures: NMDC Resumption

Disclosures: National Marine Dredging Co. Management Discussion and Analysis Report for the Period Ended September 30,2020

Disclosures: National Marine Dredging Co. Financial Results for the Period Ended September 30,2020