Announcement PDF 15 September 2026 Articore upgrades US OTC listing Articore advises that its issuer-sponsored listing on the OTC Markets has been upgraded from the Pink Limited Market to the OTCQB Venture Market, effective in the US, 15 September 2026. OTCQB is a market tier for established companies that meet higher financial and disclosure standards, and trading on it is intended to enhance visibility and accessibility for US investors. In connection with this upgrade, the Group’s OTC ticker symbol has changed from ‘RDBBF’ to ‘ATGRF’. This change relates solely to the Group’s quotation on OTC Markets and has no effect on its ASX listing. For more information, please contact: Virginia Spring VP, Investor Relations virginia.spring@articore.com Join Articore’s interactive Investor Hub For more information and to engage with management by asking questions about Articore’s latest announcements and updates, please visit our website, www.articore.com. About Articore Group Founded as Redbubble in 2006, ASX-listed Articore Group Limited (Articore or the Group) owns and operates the leading global online marketplaces Redbubble, TeePublic and Frankly Wearing and an emerging creator storefront platform, Dashery. Powered by more than three million independent creators, Articore’s community of passionate creatives sell uncommon designs on high-quality, everyday products such as apparel, stationery, housewares, bags, wall art and more. Through Redbubble, TeePublic, Frankly Wearing and Dashery, independent artists are able to profit from their creativity and connect with customers looking for original and meaningful ways to express themselves. For more information please visit: www.articore.com. This announcement was authorised for release by the Articore Group CEO and Managing Director, Vivek Kumar. Page 1