Aterian PlcLSE: ATN

2026 Annual General Meeting Results

· Issued by Aterian Plc

25 June 2026

Aterian Plc
("Aterian"
or the "Company" or the "Group")

2026 Annual General Meeting Results

Aterian plc (LSE: ATN), the African-focused critical minerals exploration, development and trading company, is pleased to announce that at the Company's Annual General Meeting held earlier today, all resolutions were duly passed.

The results of the poll were as follows:

Resolution

For

Against

Withheld

Total

01

8,032,034

Nil

2,700

8,034,734

02

8,032,034

Nil

2,700

8,034,734

03

8,032,034

Nil

2,700

8,034,734

04

8,032,034

Nil

2,700

8,034,734

05

8,032,034

Nil

2,700

8,034,734

06

8,032,034

Nil

2,700

8,034,734

07

8,032,034

Nil

2,700

8,034,734

08

8,032,034

Nil

2,700

8,034,734

09

7,981,802

50,232

2,700

8,034,734

10

7,567,844

466,690

200

8,034,734

11

8,032,034

Nil

2,700

8,034,734

In accordance with UK Listing Rule 22.2.6 copies of all the resolutions passed other than resolutions concerning ordinary business have been submitted to the Financial Conduct Authority via the National Storage Mechanism and will shortly be available for inspection at:

https://data.fca.org.uk/#/nsm/nationalstoragemechanism

A copy of the poll results for the Annual General Meeting will also be available on the Aterian plc
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 visit the Company's website: www.aterianplc.com or contact:

Aterian Plc:

Charles Bray, Executive Chairman - charles.bray@aterianplc.com

Simon Rollason, Director - simon.rollason@aterianplc.com

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 / Devik Mehta

Tel: +44 20 3470 0470

Financial PR:

Bald Voodoo - ben@baldvoodoo.com

Ben Kilbey
Tel: +44 (0)7811 209 344

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 eleven mineral prospecting licences for copper-silver in the world-renowned Kalahari Copperbelt and three for lithium and salt brine exploration in the Makgadikgadi Pans region. The Company also 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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