20 April 2026

NANOCO GROUP PLC

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

NOTIFICATION OF TRANSACTIONS BY PERSONS DISCHARGING MANAGERIAL RESPONSIBILITY

Nanoco (LSE: NANO), a world leader in the development and manufacture of cadmium-free quantum dots and other specific nanomaterials emanating from our technology platform, announces that on 20 April 2026 nil-cost options over ordinary shares of 10 pence each in the Company ("Ordinary Shares") were granted under the Nanoco 2015 Deferred Bonus Plan (the "DBP") to the executive director and others as noted below.

These DBP options relate to the year ended 31 July 2025. The number of options awarded has been calculated by reference to the average closing mid-market share price for the three days after the announcement of the Group's results for the year ending 31 July 2025. This was 9.3467 pence.

The DBP options are subject to a two-year holding period and ordinarily will vest following the announcement of Nanoco's results for its financial year ending 31 July 2027. There are no further performance conditions for the DBP options.

This notification is made pursuant to the requirements under the UK Market Abuse Regulation.

For further information, please contact:

Nanoco Group plc:

Jalal Bagherli, Executive Chairman                                                                                                              +44 (0)1928 761 404

Liam Gray, Interim CEO & Company Secretary

Sodali & Co

Elly Williamson                                                                                                                                              +44 (0)79 3535 1934

Pete Lambie

Oliver Banks

Nanoco@sodali.com

Cavendish Capital Markets Limited (Financial Adviser and Corporate Broker):

Ed Frisby / George Lawson (Corporate Finance)                                                                                      +44 (0) 20 7220 0500

Ella Bedford (Corporate Broking)

Jasper Berry (Sales)

Notes for editors:

About Nanoco Group plc

Nanoco (LSE: NANO) is a nanomaterial production and licensing group, specialising in the production of its patented cadmium free quantum dots (CFQD®) 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 Forms

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