THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF ARTICLE 7 OF THE MARKET ABUSE REGULATION (596/2014/EU) AS THE SAME HAS BEEN RETAINED IN UK LAW AS AMENDED BY THE MARKET ABUSE (AMENDMENT) (EU EXIT) REGULATIONS (SI 2019/310) ("UK MAR").

FOR IMMEDIATE RELEASE        

18 June 2026

Nanoco Group PLC

("Nanoco" or the "Company")

Intention to adjourn General Meeting

On 27 May 2026, the Board of Nanoco issued a Circular and Notice of General Meeting convening a General Meeting to be held at 10.30 a.m. on Friday 19^th June 2026 in order to seek shareholder approval for the proposed cancellation of the Ordinary Shares from the Official List, and from admission to trading on the main market for listed securities of the London Stock Exchange.

As outlined in full on 27 May 2026, and as detailed in the Circular, the Board believes that by taking further measures to reduce the Company's operating costs and carefully investing its remaining resources in existing high-potential business areas, greater value can be generated for Shareholders.

The Board have engaged extensively in dialogue with the Company's shareholder base, noting in particular the concerns around the potential lack of liquidity that would result were the Company's shares to be delisted. The Board continues to believe that a delisting would be in the best interests of all shareholders but recognises that the resolutions are unlikely to meet the required approval threshold of 75% of votes cast by shareholders at the General Meeting.

It is therefore the Board's intention to propose the adjournment of the General Meeting to explore further options and allow for 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

MAR

The information contained within this announcement is considered by the Company to contain inside information for the purposes of UK MAR. Upon the publication of this announcement via a Regulatory Information Service, this inside information will be considered to be in the public domain.

The person responsible for arranging for the release of this announcement on behalf of Nanoco is Liam Gray, Interim Chief Executive Officer.

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