Announcement PDF Market Announcement 2 November 2026 2 November 2026 35 8.0 Market Announcement 1/1 #11165249v1 Ocean Sciences Ltd (ASX: OSS) – Trading Halt Trading in the securities of Ocean Sciences Ltd (‘OSS’) will be halted at the request of OSS, pending the release of an announcement by OSS. Unless ASX decides otherwise, the securities will remain in trading halt until the earlier of: • the commencement of normal trading on Wednesday, 4 November 2026; or • the release of the announcement to the market. OSS’s request for a trading halt is attached below for the information of the market. Issued by ASX Supervision 1854 6.0 Ocean Sciences Ltd | ASX: OSS | 2 November 2026 Ocean Sciences Ltd Phone: 03 9008 2049 Address: Suite 303, 365 Little Collins St Melbourne VIC 3000 Page 1 of 1 2 November 2026 ASX Listings Compliance 39 Martin Place, Sydney NSW 2000 Email: tradinghaltssydney@asx.com.au Trading Halt Request Ocean Sciences Ltd (ASX:OSS) (“the Company”) requests a trading halt pursuant to ASX Listing 17.1 pending an announcement in relation to a material capital raising. The trading halt will remain in place until the earlier of the commencement of normal trading on Wednesday 4 November 2026, or until the release of the announcement in respect of the above matter. The Company is not aware of any reason why this trading halt request should not be granted or of any other information necessary to inform the market about the trading halt. This trading halt request has been approved by the Board of Directors. ENDS