CEO Resignation

08/06/2026 08:30 NZST, ADMINP

8 June 2026: ArborGen Holdings Limited (NZX: ARB) (ArborGen or the Company) announces that Justin Birch has resigned as Chief Executive Officer after three years in the role. The Board has commenced planning and will undertake a structured process to identify and appoint a new CEO.

Current VP of Product Development at ArborGen, Patrick Cumbie, has been appointed as interim CEO pending the appointment of a permanent CEO. Patrick joined ArborGen in 2010 and is a seasoned forestry executive, with more than 23 years’ industry experience.

ArborGen Chair, Dave Knott, said: “Justin played an important role strengthening our Brazil operations and navigating the challenges of the US market, with a number of milestones now achieved. The Board thanks him for his contributions and wishes him well for the future.

“Patrick has strong operational knowledge and a deep understanding of our business. The Board has full confidence in his ability to lead the business as we continue to execute on our strategy, deliver value for our customers and position the business for long-term success.”

ENDS

Authority for this announcement:

Dave Knott, Chair, ArborGen Holdings Limited

For more information, please contact:

Jackie Ellis, Ellis and Co e: jackie@ellisandco.co.nz, t: +64 27 246 2505