Notice is hereby given that the Annual General Meeting of Shareholders of Siem Offshore Inc. will be held at 01:00 PM UK time on Wednesday, 10 May 2023, at 40 Brighton Road, Sutton, SM2 5BN, England.

The Notice, Proxy Statement and Proxy Card for the AGM are available on the website and will be sent to all shareholders on or about 24 April 2023.

For further information, please contact:

Bernt Omdal, Chief Executive Officer, Siem Offshore Inc. Phone +47 915 22 299

Vidar Jerstad, Chief Financial Officer, Siem Offshore Inc. Phone +47 934 26 335

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