Gulf Marine Services : Withdrawal of support for resolution 5 by Ithmar

Gulf Marine Services PLC

('Gulf Marine Services', 'GMS', the 'Company' or the 'Group')

11 March 2019

Withdrawal of support for resolution 5 by Ithmar and other Shareholders
at Requisitioned General Meeting on 18 March 2019

Further to the announcements made on 22 February, 4 March and 8 March 2019, Gulf Marine Services (LSE: GMS), the leading provider of advanced self-propelled self-elevating support vessels (SESVs) serving the offshore oil, gas and renewable energy sectors, provides the following update.

The Board of GMS notes the statement made by a consortium of shareholders represented by Ithmar Capital Partners Limited (the 'Ithmar Requisitionists') on 8 March 2019 which stated that the Ithmar Requisitionists have withdrawn their support for resolution 5 (proposing to appoint Faisal Bin Juma Belhoul as director of the Company) set out in the notice of meeting contained in the first circular published by the Company on 22 February 2019 in relation to the general meeting to be held on 18 March 2019 (the 'Requisitioned General Meeting').

The Company therefore intends to seek the consent of the Requisitioned General Meeting to withdraw resolution 5, in addition to resolutions 1 and 2 as announced by the Company on 8 March 2018, and not put these resolutions to a vote.

Despite the Ithmar Requisitionists' withdrawal of their support for resolution 5 and Seafox International Limited's withdrawal of its support for resolutions 1 and 2, the Board continues to urge Shareholders to continue to complete, sign and return forms of proxy to VOTE AGAINSTall of the proposed resolutions, including resolutions 1, 2 and 5, as indicated in the red boxes on the forms of proxy as soon as possible.

All duly completed forms of proxy must be received by post or, during normal business hours only, by hand, by the Registrar, Equiniti Limited, at Aspect House, Spencer Road, Lancing, West Sussex, BN99 6DA, by no later than 9.00 a.m. on Thursday, 14 March 2019.

- Ends -

This announcement contains inside information and is provided in accordance with the requirements of Article 17 of the EU Market Abuse Regulation.

John Brown

Company Secretary (responsible for arranging the release of this announcement)

Gulf Marine Services PLC

11 March 2019

Enquiries

For further information please contact:

Gulf Marine Services PLC Duncan Anderson John Brown Tel: [phone] Anne Toomey Tel: [phone]

Brunswick Patrick Handley- UK Will Medvei - UK Tel: [phone] Jade Mamarbachi - UAE Tel: [phone]

Notes to Editors:

Gulf Marine Services PLC, a company listed on the London Stock Exchange, was founded in Abu Dhabi in 1977 and has become the world's leading provider of advanced self-propelled self-elevating support vessels (SESVs). The fleet serves the oil, gas and renewable energy industries from its offices in the United Arab Emirates, Saudi Arabia and the United Kingdom. The Group's assets are capable of serving clients' requirements across the globe, including those in the Middle East, South East Asia, West Africa and Europe.

The GMS core fleet of 13 SESVs is amongst the youngest in the industry, with an average age of eight years. The vessels support GMS' clients in a broad range of offshore oil and gas platform refurbishment and maintenance activities, well intervention work and offshore wind turbine maintenance work (which are opex-led activities), as well as offshore oil and gas platform installation and decommissioning and offshore wind turbine installation (which are capex-led activities).

The SESVs are categorised by size - Small, Mid-Size and Large Class - with these capable of operating in water depths of 45m to 80m depending on leg length. The vessels are four-legged and are self-propelled, which means they do not require tugs or similar support vessels for moves between locations in the field; this makes them significantly more cost-effective and time-efficient than conventional offshore support vessels without self-propulsion. They have a large deck space, crane capacity and accommodation facilities (for up to 300 people) that can be adapted to the requirements of the Group's clients. In addition, an innovative well workover cantilever system commissioned on a Large Class SESV in 2017 allows GMS to increase the well intervention activities carried out from the vessel and to supplant higher cost non-propelled drilling rigs.

Gulf Marine Services PLC's Legal Entity Identifier is 213800IGS2QE89SAJF77

www.gmsuae.com

Disclaimer

The content of the Gulf Marine Services PLC website should not be considered to form a part of or be incorporated into this announcement.

Cautionary Statement

This announcement includes statements that are forward-looking in nature. All statements other than statements of historical fact are capable of interpretation as forward-looking statements. These statements may generally, but not always, be identified by the use of words such as 'will', 'should', 'could', 'estimate', 'goals', 'outlook', 'probably', 'project', 'risks', 'schedule', 'seek', 'target', 'expects', 'is expected to', 'aims', 'may', 'objective', 'is likely to', 'intends', 'believes', 'anticipates', 'plans', 'we see' or similar expressions. By their nature these forward-looking statements involve numerous assumptions, risks and uncertainties, both general and specific, as they relate to events and depend on circumstances that might occur in the future.

Accordingly, the actual results, operations, performance or achievements of the Company and its subsidiaries may be materially different from any future results, operations, performance or achievements expressed or implied by such forward-looking statements, due to known and unknown risks, uncertainties and other factors. Neither Gulf Marine Services PLC nor any of its subsidiaries undertake any obligation to publicly update or revise any forward-looking statement as a result of new information, future events or other information. No part of this announcement constitutes, or shall be taken to constitute, an invitation or inducement to invest the Company or any other entity, and must not be relied upon in any way in connection with any investment decision. All written and oral forward-looking statements attributable to the Company or to persons acting on the Company's behalf are expressly qualified in their entirety by the cautionary statements referred to above.