Announcement PDF ASX Announcement 20 April 2026 Page | 1 Sea Forest enters agreement with Avondale Ag to supplement 5,000 head of cattle HIGHLIGHTS  12-month exclusive agreement with Avondale Ag, a family-owned farming enterprise  Agreement covers 5,000 head of cattle  Sea Forest now has agreements to supplement approximately 123,000 head of livestock with SeaFeedTM , reflecting growing farmer adoption Sea Forest Limited (ASX:SEA) (Sea Forest or the Company) is pleased announce it has entered into an agreement with Avondale Ag, a family-owned, environmentally focused mixed farming enterprise located in Rowena, New South Wales. Under the agreement, approximately 5,000 head of cattle will be supplemented with SeaFeedTM. The full cohort is expected to be inducted onto SeaFeed by October 2026. The agreement is for an initial term of 12-months, with an option for Avondale to extend on an ongoing basis. Under the agreement, Avondale Ag will exclusively supplement with SeaFeed, with no competing or similar products permitted for the duration of the contract. Following finalising the agreement with Avondale Ag, Sea Forest now has approximately 123,000 head of livestock under agreement to be supplemented with SeaFeed, demonstrating strong adoption of the product across Australian livestock farms. Sea Forest Chief Executive Officer, and Co-Founder, Sam Elsom, said: “We are proud to be partnering with family-owned Australian farming businesses like Avondale Ag, who share our focus of sustainable and responsible farming practices. This agreement reflects the strong momentum and engagement we continue to see from farmers and producers across the country, driven by both the positive environmental outcomes and productivity benefits of SeaFeed1,2. We have a strong pipeline of new customers and expect to have more customers signed over the coming months.” This announcement has been authorised by the Board of Sea Forest Limited. 1 George MM, Platts S V, Berry BA, Miller MF, Carlock AM, Horton TM, George MH. 2024. Effect of SeaFeed, a canola oil infused with Asparagopsis armata, on methane emissions, animal health, performance, and carcass characteristics of Angus feedlot cattle. Translational Animal Science. 8:txae116. doi:10.1093/tas/txae116. 2 Kinley, R.D., Roque, B.M., Mackenzie, S.L., Fortes, M.R.S., Palmieri, C., Tarr, G., Cuthbertson, H., Polkinghorne, R. and Cowley, F.C. (2024) Productivity of Commercial Feedlot Beef Production Significantly Improved by Asparagopsis Bioactives Stabilized in Canola Oil. American Journal of Plant Sciences , 15, 899-929. https://doi.org/10.4236/ajps.2024.1510058 INVESTOR AND MEDIA ENQUIRIES Aileen Bodart +61 432 160 136 Aileen.bodart@sodali.com Jack Gordon +61 478 060 362 Jack.gordon@sodali.com ABOUT SEA FOREST Sea Forest Limited (ASX:SEA) is a science-based, leading Australian livestock feed additive manufacturer, utilising and replicating the science of methane abating Asparagopsis seaweed through its proprietary product SeaFeed™ to generate productivity gains for farmers whilst reducing methane emissions created by ruminant livestock. Page | 2 SeaFeed™ has been scientifically formulated to replicate the beneficial properties of the red seaweed Asparagopsis and is proven to generate productivity gains of over 6%1 while reducing methane emissions in ruminant livestock by up to 80%2. For more information, please visit: https://www.seaforest.com.au/ 1 George MM, Platts S V, Berry BA, Miller MF, Carlock AM, Horton TM, George MH. 2024. Effect of SeaFeed, a canola oil infused with Asparagopsis armata, on methane emissions, animal health, performance, and carcass characteristics of Angus feedlot cattle. Translational Animal Science. 8:txae116. doi:10.1093/tas/txae116. 2 Cowley FC, Kinley RD, Mackenzie SL, Fortes MRS, Palmieri C, Simanungkalit G, Almeida AK, Roque BM. 2024. Bioactive metabolites of Asparagopsis stabilized in canola oil completely suppress methane emissions in beef cattle fed a feedlot diet. Journal of Animal Science. 102:skae109. doi:10.1093/jas/skae109