1 July 2026

NANOCO GROUP PLC

("Nanoco", the "Group" or the "Company")

Exercise of Deferred Bonus Options

NOTIFICATION OF TRANSACTIONS BY PERSONS DISCHARGING MANAGERIAL RESPONSIBILITY

Nanoco Group plc ("Nanoco") announces that on 30 June 2026 Nanoco received notice that Liam Gray, Interim CEO and company secretary has exercised in full options granted to him on 27 October 2022 and 23 January 2024. These options are in respect of bonuses earned in previous years which were deferred.

The shares have been issued from the Employee Benefit Trust. In order to comply with the rules of the scheme, a number of the shares have been sold to meet tax and fee obligations.

The details of the awards and subsequent exercise and retention of shares are as follows:

This notification is made pursuant to the Disclosure Guidance and Transparency Rules.

For further information please contact:

Liam Gray

Interim CEO and Company Secretary

Telephone : +44 (0) 1928 761422

Notes for editors:

About Nanoco Group plc

Nanoco (LSE: NANO) is a world leader in the development and manufacture of cadmium-free quantum dots and other specific nanomaterials emanating from its technology platform. In particular, Nanoco is a nanomaterial production and licensing group, specialising in the production of its patented cadmium free quantum dots (CFQD® materials) and other patented nanomaterials for use in the electronics industries. Founded in 2001 and headquartered in Runcorn, UK, Nanoco continues to build out a world-class, patent-protected IP portfolio alongside its existing scaled up production facilities for commercial orders.

Nanomaterials are materials with dimensions typically in the range 1 - 100 nm. Nanomaterials have a range of useful properties, including optical and electronic. Quantum dots are a subclass of nanomaterial that have size-dependent optical and electronic properties. Within the sphere of quantum dots, the Group exploits different characteristics of the quantum dots to target different performance criteria that are attractive to specific markets or end-user applications such as the Sensor, Electronics and Display markets. Nanoco's CFQD® quantum dots are free of cadmium and other toxic heavy metals, and can be tuned to emit light at different wavelengths across the visible and infrared spectrum, rendering them useful for a wide range of display applications. Nanoco's HEATWAVE® quantum dots can be tuned to absorb light at different wavelengths across the near-infrared spectra, rendering them useful for applications including cameras and image sensors.

Nanoco is listed on the Main Market of the London Stock Exchange, holds the LSE's Green Economy Mark, and trades under the ticker symbol NANO. For further information please visit: www.nanocotechnologies.com

Notification of Dealing Form

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