ATERIAN PLC — AGM Information 2026

Jun 1, 2026

National Storage Mechanism | Additional information

RNS Number : 5052G

Aterian PLC

01 June 2026

01 June 2026

Aterian Plc

("Aterian" or the "Company")

AGM Announcement

Aterian plc (LSE: ATN), the critical mineral exploration and development company focused on Africa, announces that its Annual General Meeting ("AGM") will be held on 25 June 2026 at the offices of Hill Dickinson LLP, The Broadgate Tower, 20 Primrose Street, London, EC2A 2EW at 11 a.m.

The Notice of AGM and Form of Proxy will be posted to shareholders today. Copies of these documents will shortly be available from the Company's website:  www.aterianplc.com

- ENDS -

This announcement contains information which, prior to its disclosure, was inside information as stipulated under Regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310 (as amended).

Engage directly with the Aterian PLC management team by asking questions, watching video summaries, and seeing what other shareholders have to say. Please navigate to our interactive investor
hub here: https://aterianplc.com/s/fcf8eb

For further information, please contact:

Investor questions on this announcement We encourage all investors to share questions on this announcement via our investor hub	https://aterianplc.com/s/fcf8eb

Aterian Plc:

Charles Bray, Executive Chairman - [email protected]

Simon Rollason, Director - [email protected]

Financial Adviser and Joint Broker:

AlbR Capital Limited

David Coffman / Dan Harris

Colin Rowbury

Tel: +44 (0)207 7469 0930

Joint Broker:

SP Angel Corporate Finance LLP

Ewan Leggat / Adam Cowl 

Tel: +44 20 3470 0470

Financial PR:

Bald Voodoo - [email protected]

Ben Kilbey

Tel: +44 (0)7811 209 344

Subscribe to our news alert service: https://atn-l.investorhub.com/auth/signup

Notes to Editors:

About Aterian plc

www.aterianplc.com

Aterian plc is an LSE-listed exploration and development company with a diversified African portfolio of critical metals projects.

Aterian plc is actively seeking to acquire and develop new critical metal resources to strengthen its existing asset base while supporting ethical and sustainable supply chains as the world transitions to a sustainable, renewable future. The supply of these metals is vital for developing the renewable energy, automotive, and electronic manufacturing sectors, which are increasingly important in reducing carbon emissions and meeting global climate ambitions.

Aterian has a portfolio of multiple copper-silver (+ gold) and base metal projects in Morocco. Aterian holds a 90% interest in Atlantis Metals, a private Botswana-registered company holding ten mineral prospecting licences for copper-silver in the world-renowned Kalahari Copperbelt and three for lithium brine exploration in the Makgadikgadi Pans region. The Company holds an exploration licence in southern Rwanda, where it is evaluating the tantalum and niobium opportunity, in addition to further exploring for pegmatite-hosted lithium.

The Company's strategy is to seek new exploration and production opportunities across the African continent and to develop new sources of critical mineral assets for exploration, development, and trading.

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