FOR IMMEDIATE RELEASE        

19 June 2026

Nanoco Group PLC

("Nanoco" or the "Company")

Adjournment of General Meeting

Further to the announcement made on 18 June 2026, the Company announces that the General Meeting originally scheduled for 10:30am this morning has been adjourned sine die.

The Board will continue to explore further options and engage in further constructive engagement and dialogue with shareholders.

Unless otherwise defined herein, the capitalised terms used in this announcement have the same meaning as those used in the Company's announcement released on 27 May 2026.

- Ends

Nanoco Group plc:

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

Liam Gray, Interim CEO & Company Secretary

Sodali & Co

Pete Lambie

Elly Williamson                                                                                                                                                +44 (0)79 3535 1934

Anthony Kluk
Keyvan Amirghassemi

[email protected]

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