6 December 2023

HeiQ Plc

("HeiQ" or "the Company")

Agreed Changes to Concert Party

HeiQ (LSE:HEIQ), a leading company in materials innovation and hygiene technologies announces recent changes to the composition of the concert party in respect of the Company.

Under the City Code on Takeovers and Mergers (the "Code") published by the Panel on Takeovers and Mergers (the "Panel"), a concert party arises where persons who, pursuant to an agreement or understanding (whether formal or informal), co-operate to obtain or consolidate control (as defined in the Code) of a company or to frustrate the successful outcome of an offer for a company.

Certain persons will be presumed, as set out in the Definitions in the Code, to be persons acting in concert with other persons in the same category unless the contrary is established, including shareholders in a private company who sell their shares or interests in consideration for the issue of new shares in a company to which the Code applies, or who, in connection with an initial public offering or otherwise, become shareholders in a company to which the Code applies.

In its Prospectus dated 12 November 2020, HeiQ stated that it had agreed with the Panel that a concert party (the "2020 Concert Party") existed in the context of the Company. The 2020 Concert Party comprised each of Carlo Centonze, Cortegrande AG, Emanuele Centonze, Annica Centonze, Esther Dale-Kolb, Xaver Hangartner, Benjamin Bergo, Dr Murray Height, Trevor Height, Robyn Height and Darren Morcombe.

The Company has now agreed with the Panel that Darren Morecambe is no longer part of the 2020 Concert Party, such that it now comprises the following members.

The individual members of the 2020 Concert Party (as comprised pursuant to the table above) can now acquire further shares in the Company without triggering an obligation under Rule 9 of the Code to make an offer for the whole of its issued share capital, provided that such acquisitions do not cause the aggregate interest of the 2020 Concert Party to reach or exceed 30 per cent. of the Company's issued share capital.

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About HeiQ

HeiQ is a Swiss-based international company that innovates pioneering and differentiating materials in partnership with established global brands. We bridge the academic and commercial worlds to conceive performance-enhancing materials and technologies, working with aligned brands to research, manufacture and bring products to market, aiming for lab to consumer in months. Our goal is to improve the lives of billions by innovating the materials that go into everyday products, making them more hygienic, comfortable, protective, and sustainable.

Our strong IP portfolio positions us as an innovation leader for niche, premium and high-margin products in the textile chemicals, man-made fibers, paints and coatings, antimicrobial plastics, probiotics and household cleaner markets. We have also expanded into healthcare facilities, probiotic cleaning, and hygiene coatings markets to help make hospitals and healthcare environments more hygienic.

We have developed over 200 technologies in partnership with 300 major brands. With a substantial research and development pipeline, including key technology development projects HeiQ AeoniQ, HeiQ ECOS, HeiQ GrapheneX, and HeiQ Synbio, HeiQ aims to deliver shareholder value through sales growth and entry into new lucrative markets through disruptive innovation and M&A.

We have built a strong reputation for ESG & sustainable innovation, having won multiple awards including the Swiss Technology Award twice and the Swiss Environmental Award. Under experienced leadership, we are committed to driving our profit in close connection with people and the planet. For more information, please visit www.heiq.com.