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Clean Seed Receives U.S. Patent Allowance for Residue Management Technology, Further Strengthening Its Agricultural Innovation Portfolio

Tuesday, June 16, 2026 6:00 AM PDT

(via TheNewswire)

VANCOUVER, BC – TheNewswire - June 16, 2026 – Clean Seed Capital Group Ltd. (TSX.V: CSX) (“Clean Seed” or the “Company”) is pleased to announce that the United States Patent and Trademark Office has issued a Notice of Allowance for its patent application covering the Company’s innovative Residue Management System.

This Notice of Allowance represents another significant achievement in Clean Seed’s intellectual property strategy and further reinforces the depth, breadth, and commercial value of the Company’s growing portfolio of proprietary agricultural technologies.

The Notice of Allowance relates to U.S. Patent Application No. 18/557,669 entitled “Residue Management System for an Agricultural Row Unit Assembly” covering technology designed to improve residue handling and field performance at the row-unit level. Clean Seed will proceed promptly with its submission to have the patent granted.

The patented technology is designed to improve residue flow and debris management at the row-unit level, helping maintain seeding performance in challenging field conditions and varying crop residue environments while reducing interruptions caused by debris accumulation and field obstructions. The innovation complements Clean Seed’s existing precision seeding technologies and further strengthens the Company’s growing portfolio of proprietary agricultural innovations.

The allowance comes at a time when Clean Seed is entering a new phase of commercial growth, advancing multiple commercialization initiatives including manufacturing activities with Mahindra and Mahindra Limited, international market development programs, and broader deployment opportunities through strategic partnerships. The Company believes a strong and expanding intellectual property portfolio remains a key component of its long-term growth strategy.

“This latest patent allowance is another important validation of the technology platform we have spent years developing,” said Graeme Lempriere, Chief Executive Officer of Clean Seed Capital Group Ltd. “Our intellectual property portfolio continues to advance and expand, creating meaningful barriers to entry while protecting the value of years of engineering, field validation, and investment. As we continue advancing commercialization initiatives in multiple markets, this patent strengthens the foundation for future manufacturing, licensing and strategic partnership opportunities.

This latest allowance underscores Clean Seed’s ongoing commitment to innovation and its vision of developing and deploying next-generation agricultural technologies that help farmers produce more with fewer inputs while supporting healthier soils, improved sustainability outcomes, and increased farm profitability.

ON BEHALF OF THE BOARD

“Graeme Lempriere” Chairman & Chief Executive Officer glempriere@cleanseedcapital.com

About Clean Seed Capital Group Ltd.

Clean Seed is an agricultural technology company commercializing its award-winning, internationally patented, SMART Seeder™ technologies. Designed for real-world conditions these tools can significantly reduce fertilizer usage while supporting higher crop performance and overall farm profitability.

At the heart of Clean Seed’s offering is the SMART Seeder™ system—a breakthrough in precision seeding that combines advanced electronic metering with intuitive software control. Its ability to row-by-row variable rate agricultural inputs facilitates sustainable farming.

Clean Seed is partnered with Mahindra and Mahindra Limited, one of the world’s largest farm equipment manufacturer’s, supporting the Company’s global commercialization strategy and path to large-scale market adoption.

The common shares of Clean Seed Capital Group Ltd. trade on the TSX Venture Exchange under the symbol “CSX”.

For further information please contact Clean Seed at info@cleanseedcapital.com and visit our website at www.cleanseedcapital.com.

Neither the TSX Venture Exchange, the NEX nor their Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

This press release is not an offer or a solicitation of an offer of securities for sale in the United States. The common shares of Clean Seed Capital Group Ltd. have not been and will not be registered under the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States absent registration or an applicable exemption from registration.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION:

This news release includes certain “forward-looking statements” as defined under applicable Canadian securities legislation. All information and statements contained herein that are not clearly historical in nature constitute forward-looking information, and the words “anticipate”, “estimate”, “believe”, “continue”, “could”, “expects”, “intend”, “plans”, "postulates", "predict", “will”, “may” or similar expressions suggesting future conditions or events or the negative of these terms are generally intended to identify forward-looking information. Forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable, are subject to known and unknown risks, uncertainties, and other factors which may cause the actual results and future events to differ materially from those expressed or implied by such forward-looking statements. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. While we expect that the patent will be granted upon our submission, there is no assurance that Clean Seed will be granted the patent. Clean Seed disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.