PDMR Shareholding & Issue of Equity.

SRT MARINE SYSTEMS PLC

(AIM: SRT)

("SRT" or the "Company")

Grant of Options, Exercise of Options, Director Dealing, Issue of Equity and Total Voting Rights

SRT Marine Systems plc ("SRT"), a global provider of maritime domain awareness systems and technologies for security, safety and environmental protection, announces that Neil Peniket, Chief Operating Officer of the Company has exercised 920,000 options at a price of 0.1 pence each (the "Exercise"), and following this Exercise has sold 420,000 ordinary shares of 0.1 pence each in the Company ("Ordinary Shares"), at an average price of 76.9 pence per Ordinary Share, to satisfy associated tax obligations.

Application has been made for the 920,000 new Ordinary Shares to be admitted to trading on AIM which is expected to occur on 1 September 2025 ("Admission").

In addition to the above, the Company confirms it has granted 500,000 new Options to Simon Tucker, Chief Executive Officer of the Company, 250,000 new Options to Richard Hurd, Chief Financial Officer of the Company, and 250,000 new Options to Neil Peniket (the "Grants"). The new Options issued pursuant to the Grants will have an exercise price of 0.1 pence each. The new Options will vest in three equal tranches when the Company's average mid-market closing share price exceeds each £1.00, £1.50 and £1.75 for a period of 20 continuous business days.

Following the Exercise of Options and sale of Ordinary Shares, Mr Peniket holds 1,600,000 Ordinary Shares in the Company, representing 0.6 per cent. of the Company's issued share capital. Following the Exercise and the Grants, Mr Peniket holds 1,280,000 Options in the Company. Following the Grants Mr Tucker holds 4,500,000 Options and Mr Hurd holds 1,300,000 Options, respectively, and in total the Company has 11,787,000 Options in issue, representing 4.7 per cent. of the Company's enlarged issued share capital.

Following Admission, the Company will have 251,215,656 Ordinary Shares in issue with each share carrying the right to one vote. This is the total voting rights figure which may be used by shareholders as the denominator for the calculations by which they will determine whether they are required to notify their interests in, or a change to their interest in the Company under the Financial Conduct Authority's Disclosure Guidance and Transparency Rules.

About SRT Marine Systems plc:

SRT Marine Systems PLC is a global company which develops and provides integrated maritime surveillance, monitoring, management and safety systems used by coast guards, fishery authorities, infrastructure and vessel owners for the purposes of managing and controlling their maritime domain.  Applications include security, safety, search & rescue, law enforcement, fisheries management, illegal fishing detection and environment monitoring. 

Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them