20 October 2025

ACG METALS LIMITED

("ACG" or the "Company")

Q3 2025 YTD Operations and Capital Structure Update

ACG on track for annual production and AISC guidance

ACG Metals Limited (LSE:ACG) is pleased to announce its operations and capital structure update for the third quarter 2025 year to date ("Q3 2025 YTD").

Q3 2025 YTD Summary

·    Q3 2025 YTD production remains on track to meet full-year guidance of 36-38koz AuEq.

·    AISC costs YTD were US$1,131/oz AuEq, remaining within guidance; YTD C1 cash costs fell by 30% to US$432/oz AuEq compared to Q3 2024 YTD, reflecting continued operational efficiency.

·    Q3 2025 production was seasonally lower, consistent with the mine plan and previous years' production sequencing.

·    The Gediktepe Sulphide Expansion Project continues to progress on schedule and budget, with first concrete and steel, and significant site infrastructure milestones being achieved in Q3 2025.

·    ACG Metals continues to advance technical work to unlock value from transitional ore.

·    Gold and silver prices increased in Q3 YTD 2025 compared to Q3 YTD 2024 by 34% and 26%, to US$3,054/oz Au and US$34.19/oz Ag, supporting strong revenues.

·    ACG's net debt as of September 30, 2025 of $64 million remains low, supported by a strong cash balance of $137 million (including a restricted balance of $46 million).

Artem Volynets, Chairman and CEO of ACG, said:

"We delivered solid progress in Q3 2025 and remain firmly on track to achieve our full-year guidance. With disciplined execution, the Sulphide expansion is on schedule and within budget, targeting full commercial production by the end of H1 2026. Major milestones have been achieved, including concrete pouring and steel installation"

Q3 YTD 2025 Operating Summary

Strong Momentum Continues Across Sulphide Expansion Works

·    The Gediktepe Copper Sulphide Expansion Project has achieved key milestones, including the completion of the MSE wall administration area, a significant step in the site's infrastructure development.

·    Earthworks at the TSF are progressing well, supported by favourable weather throughout September. Notable progress includes the installation of underdrains and embankment foundation preparation.

·    The GAP blue collar camp and mobilisation area have been completed on schedule, with temporary water heating installed to support resident occupancy and workforce mobilisation as major construction activities ramp up across the site.

·    Excavation and foundation work in the fine grinding area are advancing, with TSF underdrain installation continuing in parallel.

·    As of 30 September 2025, the project remains well within its scheduled milestones, with 58% of engineering design and draft, 56% of procurement and 27% of process plant construction completed.

·    The Sulphide Expansion Project remains on track to reach full commercial production by the end of H1 2026, enabling Gediktepe's transition into a long-life, low-cost copper producer.

Warrants

On 20 October 2025, the Company made various amendments to the terms of the (i) private placement warrant and public warrant instrument dated 2 September 2024 (the "First Warrant Instrument") and (ii) warrant instrument dated 6 October 2022 (as amended and restated on 2 September 2024 and as further amended and restated on 7 February 2025) (the "Second Warrant Instrument" and, together with the First Warrant Instrument, the "Warrant Instruments"); such that:

(A) the currency denomination of the Warrant Instruments has been changed from United States Dollars to Pounds Sterling, to reflect the change in trading currency of the Company's class A ordinary shares on the London Stock Exchange on 24 March 2025;

(B) the Exercise Price has been adjusted from US$6.90 to £5.34, being the Pounds Sterling equivalent of the Exercise Price by reference to the closing exchange rate of 1.2919 on 21 March 2025 (being the business day prior to the date on which the Company's shares started trading in Pound Sterling);

(C) the right of the Company to redeem the Warrants (herein as defined in the Warrant Instruments) if: (i) the Reference Value (herein as defined in the Warrant Instruments) equals or exceeds $18.00 per class A ordinary share; or (ii) the Reference Value equals or exceeds $10.00 per class A ordinary share and is less than $18.00 per class A ordinary share; has been removed; and 

(D) certain other consequential amendments have been made to give effect to the above,

(together, the "Amendments"). 

Save in respect of the Amendments, the Warrant Instruments remain otherwise unchanged and the Warrant terms and conditions remain as summarised in the prospectus dated 7 October 2022 and the announcement on 7 February 2025.

Pursuant to the Warrant T&Cs and the Warrant Instruments, the Company is permitted to amend the Warrant T&Cs without the consent of Warrant Holders (herein as defined in the Warrant Instruments) for the purpose of adding or changing any provisions as the Company may deem necessary or desirable and that the Company deems not to adversely affect the rights of Warrant Holders.  The Company considers the Amendments to be necessary and, furthermore, the Company deems that such Amendments do not adversely affect the rights of the Warrant Holders.  Accordingly, the consent of Warrant Holders was not sought in respect of the Amendments (nor was such consent required to be sought).  

Copies of the updated Warrant Instruments will shortly be available on the Company's website at: https://acgmetals.com/regulatory-news/..

- ENDS -

Inside information

The information contained within this announcement is considered by the Company to constitute inside information as stipulated under the Market Abuse Regulation (EU) No.596/2014 (as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018). On the publication of this announcement via a Regulatory Information Service, such information is now considered to be in the public domain.

The person responsible for the release of this information on behalf of the Company is Artem Volynets, Chairman & Chief Executive Officer.

Forward looking statements

This announcement may contain certain "forward-looking information" and "forward-looking statements" (collectively, "forward-looking statements").  Forward-looking statements are identified by their use of terms and phrases such as "believe", "targets", "expects", "aim", "anticipate", "project", "would", "could", "envisage", "estimate", "intend", "may", "plan", "will" or the negative of those, variations or comparable expressions, including references to assumptions. The forward-looking statements in this announcement are based on current expectations and are subject to known and unknown risks and uncertainties that could cause actual results, performance and achievements to differ materially from any results, performance or achievements expressed or implied by such forward-looking statements. Factors that may cause actual results to differ materially from those expressed or implied by such forward looking statements. These forward-looking statements are based on numerous assumptions regarding the present and future business strategies of the Group and the environment in which it is and will operate in the future. All subsequent oral or written forward-looking statements attributed to the Company or any persons acting on its behalf are expressly qualified in their entirety by the cautionary statement above. Each forward-looking statement speaks only as of the date of this announcement. Except as required by applicable law, regulatory requirement, the UK Listing Rules and the Disclosure Guidance and Transparency Rules, neither the Company nor any other party intends to update or revise these forward-looking statements, whether as a result of new information, future events or otherwise.

For further information please contact:

Palatine      

Communications Advisor

Conal Walsh / James Gilheany/ Kelsey Traynor/ Richard Seed

acg@palatine-media.com

Berenberg

Research Analysts

William Dalby +44 (0) 20 3753 3243

Richard Hatch +44 (0) 20 3753 3070

Joint Broker

Jennifer Lee

+44 (0) 20 3207 7800

Canaccord

Research Analysts

Tim Huff +44 (0) 20 7523 8374                                

Alex Bedwany +44 (0) 20 7523 8387

Joint Broker

James Asensio / Charlie Hammond

+ 44 (0) 20 7523 80

Stifel

Joint Broker

Ashton Clanfield / Varun Talwar

+44 (0) 20 7710 7600

Cantor Fitzgerald

Research Analysts

Puneet Singh +1 (416) 350-8153

About the Company

ACG Metals is a company with a vision to consolidate the copper industry through a series of roll-up acquisitions, with best-in-class ESG and carbon footprint characteristics.

In September 2024, ACG successfully completed the acquisition of the Gediktepe Mine which is expected to transition to primary copper and zinc production from 2026 and will target annual steady-state copper equivalent production of 20-25 kt. Gediktepe sold 57koz of AuEq in 2024.

ACG's team has extensive M&A experience built through decades spent at blue-chip multinationals in the sector. The team brings a significant network as well as a commitment to ESG principles and strong corporate governance. 

LON: ACG  |  OTCQX: ACGAF  |  LON:ACGW  |  Xetra: ACG  |  Bond ISIN: NO0013414565

For more information about ACG, please visit: www.acgmetals.com