Calyxt appoints Dr Yves Ribeill as Board Chairman alongside Laurent Arthaud joining as new Board member

– USA, MN –  Calyxt, Inc. (NASDAQ: CLXT), a plant-based technology company, today announced the appointment of current board member Dr Yves Ribeill, Ph.D., as Chairman. Additionally, Calyxt also announced the appointment of Laurent Arthaud to its Board of Directors. These changes are effective immediately.

This appointment coincides with the decision of Dr. André Choulika to wholly focus his energy on Cellectis’ clinical development activities, and thus, retiring as Chairman of Calyxt’s Board.

“On behalf of the Calyxt Board of Directors, I would like to express my deep gratitude and appreciation for André’s guidance and commitment to Calyxt’s success over the past decade,” said Yves Ribeill. “Under André’s leadership over the last ten years, Calyxt has demonstrated its ability to invent, develop, market, and supply a gene-edited crop, starting with its first high oleic soybean. With the immense progress, Calyxt has made, we are now uniquely positioned to use our leading-edge TALEN® technology to bring healthier, more sustainable products to market. I’m honored and excited to guide Calyxt in its next development phase and hope we can continue the legacy André established for us.”

About Dr Yves Ribeill

Yves Ribeill, Ph.D., founded SCYNEXIS, Inc (NASDAQ: SCYX) and served as President and CEO from 1999 to 2015. Dr. Ribeill has more than 35 years of experience in the healthcare industry, with expertise in anti-infective diseases including bacterial, fungal, viral and parasiticidal and in microbiome-centric diseases. Prior to moving to the U.S. 23 years ago, Dr. Ribeill held several management positions during his international career with Rhône-Poulenc and Aventis in France and in the UK. Dr. Ribeill was a member of the Scientific Advisory Committee of the World Health Organization, the Medicines for Malaria Venture and is currently the CEO of Ribogenics, Inc., an early-stage R&D company.

About Laurent Arthaud

In addition, the Calyxt Board of Directors appointed Laurent Arthaud, a member of Cellectis’ Board of Directors since 2011, as Director. Mr. Arthaud was designated to serve as a director by Cellectis, Calyxt’s parent company, pursuant to an existing Stockholders Agreement between Calyxt and Cellectis. Cellectis holds 68.9% of Calyxt shares as of December 31, 2019. Mr. Arthaud served as a member of Calyxt’s Board of Directors until May 2019 and is a member of Cellectis’ Board of Directors since 2011. Mr. Arthaud has been the Managing Director of Life Sciences and Ecotechnologies for Bpifrance Investissement (formerly CDC Enterprises, a subsidiary of Caisse des Dépôts) since 2012.

“I’m honored to join the Board of Directors at Calyxt and to support the impressive team that CEO Jim Blome has built. I’m confident the company will continue to build significant value for its stakeholders,” said Laurent Arthaud.

About Calyxt

Calyxt, based in Roseville, Minnesota, is a plant-based technology company. We partner with like-minded farmers and companies to deliver plant-based products with wellness and sustainability benefits. We use cutting edge plant breeding techniques to innovate and develop solutions to address unmet consumer and market demands.

For more information: https://calyxt.com

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