ADX Disclosures: NMDC Resumption

Disclosures: National Marine Dredging Co. Financial Results for the Period Ended June 30,2021

Disclosures: National Marine Dredging Co. Management Discussion and Analysis Report for the Period Ended June 30,2021

Disclosures: National Marine Dredging Co. Board Meeting Results held on 15/07/2021 at 12:00

ADX Disclosures: Temporary suspension of trading on the shares of National Marine Dredging Co.

Disclosures: National Marine Dredging Co. Announcement of Board Meeting to be held on 15/07/2021 at 12:00

Disclosures: Notification regarding new projects awarded to NMDC

Disclosures: National Marine Dredging Co. sustainability report 2020

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

Disclosures: National Marine Dredging Co. New Project

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

Disclosures: National Marine Dredging Co. Management Report for the Period Ended March 31,2021