The results for the second quarter ended 30 June 2023 will be published on Friday 25 August 2023 at 08:00 (CET) on the Oslo Stock Exchange (ticker code: SIOFF) and on Siem Offshore Inc.'s website www.siemoffshore.com.

A conference call will be held on the same day at 13:00 (CET) to review the presentation and discuss the second quarter 2023 release. The call will be hosted by Bernt Omdal – CEO, Siem Offshore Inc. and Vidar Jerstad - CFO, Siem Offshore Inc.

To join the audio conference, please click here or use the link below:

https://events.teams.microsoft.com/event/f1383898-ac7a-4484-878f-45e44fbd1d04@6c794fcd-8416-4d55-9e1b-6142103a80fd

The conference call will be recorded and made available on www.siemoffshore.com