GreenLight Biosciences Secures Belgian Emergency Use Authorization for first RNA-Based Insecticide in the EU

Durham, North Carolina (May 6, 2026) - Belgian authoritieshave granted Emergency Use Authorization (EUA) for GreenLight BiosciencesRNA-based insecticide, Calantha®, to control Colorado Potato Beetle (CPB) inpotatoes during the 2026 growing season. The authorization marks the first useof RNA technology for crop protection in the European Union and providesgrowers with a new, targeted tool to address severe pest pressure and increasingresistance to conventional chemistries.

The Emergency Use Authorization supported by key Belgianpotato growers, Belgapom and other stakeholders allows the use of Calantha fora 120-day period from May 1 through August 28, 2026, covering the criticalwindow for CPB control in Belgium.

This new authorization reflects a response to both theseverity of current infestations and the increasing challenges of managing CPBresistance with conventional chemistries. Calantha, powered by ledprona,provides a novel mode of action that offers an additional tool forresistance-management programs while leaving no detectable residues onharvested potatoes.

Using RNA technology for precise activity against the targetpest, Calantha is designed to not harm bees, beneficial insects, or othernon-target organisms, supporting growers in meeting increasing environmentaland stewardship expectations.

Registered by the EPA for use in the United States, Calanthahas demonstrated effective control of the Colorado Potato Beetle undercommercial growing conditions while meeting strict regulatory and safetystandards.

GreenLight Biosciences is working in collaboration with FineAgrochemicals B.V., part of De Sangosse Group, to support product deployment,technical guidance, and stewardship throughout the authorization period inBelgium. This partnership - leveraging Fine B.V.'s strong presence in thepotato segment - ensures Belgian growers have access to local expertise andsupport as they implement this new mode of action. More information can befound on, finebv.eu/fr-be/product/calantha/

"This represents an important step in bringing RNA-basedcrop protection to European agriculture," said Steven Victor Turbes, SeniorVice President of Sales and Marketing at GreenLight Biosciences. "Our goal isto develop innovative solutions that help address urgent crop protectionchallenges while providing growers with precise, effective tools that helpprotect yield."

About GreenLight Biosciences

GreenLight Biosciences is a global crop protection and beehealth company developing novel modes of action that equip growers witheffective, easy-to-use tools to manage pests in increasingly challengingconditions. Its proprietary RNA technology platform enables the rapiddevelopment of targeted solutions with improved environmental profiles,designed to integrate seamlessly into existing pest management programs.Underpinned by fully integrated capabilities across design, development,manufacturing and commercialization, GreenLight Bio is advancing a growingpipeline of innovations that help growers to address shifting pest pressuresand maximize ROI. For more information, please visit greenlightbio.com.

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