Pryme N.V.

Board/Management Information • Aug 4, 2025

Pryme N.V. Appoints Guus Lemmers as New Chief Executive Officer

Rotterdam, August 4, 2025

The Supervisory Board of Pryme N.V. is pleased to announce the appointment of Gerardus ("Guus") Lemmers as Chief Executive Officer, effective September 5, 2025.

Guus Lemmers is a Dutch national bringing over 20 years of experience, of which more than a decade in leading large offshore projects with Petrodec, a Perenco¹ subsidiary. He holds a Bachelor of Science degree in Naval Architecture and Mechanical Engineering from the University of Applied Sciences in Haarlem, the Netherlands. Throughout his career, Guus has led a range of large-scale, technically complex projects and has consistently delivered strong operational and strategic results.

In his latest role with Petrodec, Guus has assumed various senior positions including Operations Engineer, Technical Manager, Operations Manager and Project Manager. He was responsible for overseeing the planning, development, and execution of major offshore projects. His leadership in managing multidisciplinary teams and navigating complex, first of a kind engineering challenges is particularly aligned with Pryme's needs.

The Supervisory Board is confident that Guus' proven track record in project execution and technical leadership will be instrumental in advancing Pryme's growth ambitions. His experience will support the further development of Pryme One, our first commercial plant, and guide the expansion into future facilities. His comprehensive understanding of technical operations, combined with strategic oversight, makes him well-suited to lead Pryme into its next phase.

Until Guus assumes his role, Benoît Morelle will continue to serve as interim CEO. The Supervisory Board extends its sincere gratitude to Benoît for his exceptional leadership during this transitional period. His science and data-driven approach has significantly enhanced the reliability and technical performance of Pryme One. We are pleased that Benoît will remain available to support a smooth transition.

The Supervisory Board welcomes Guus to Pryme and looks forward to working with him to continue building a sustainable and innovative future for the company and its stakeholders.

For investor inquiries: ir@pryme-cleantech.com

About Pryme | www.pryme-cleantech.com

Pryme N.V. is an innovative cleantech company focused on converting plastic waste into pyrolysis oil through chemical recycling on an industrial scale. Its efficient and scalable

¹ Perenco is the parent company of Taranis Operations Ltd, one of the largest shareholders in Pryme N.V.

technology is based on a proven process that has been further developed and enhanced with proprietary characteristics.

The company has initialized production at its first plant in the port of Rotterdam, with an expected nameplate intake capacity of about 26,000 tons of plastic waste annually.

Pryme's ambition is to contribute to a low-carbon circular plastic economy and to realize the large rollout potential of its technology through the development of a broad portfolio of owned-operated plants with strategic partners.

The company is listed on Euronext Growth Oslo.

Pryme can be followed on LinkedIn.