Gulf Marine Services : Standard form for notification of major holdings

In reference to section 9, the shares detailed are managed by the named discretionary investment management entity within multiple portfolios on behalf of underlying clients, based on investment management agreements whereby the client has delegated the exercise of the voting power to the referenced investment manager.

This disclosure also reflects the fact that the voting rights held indirectly by the underlying intermediate holding company Standard Life Investments (Holdings) Limited ('SLIHL') increased above the 5% notifiable threshold due to trading on 1 August 2018. 'SLIHL' effectively holds the delegated voting rights to 5.01% of the shares in Gulf Marine Services PLC.