15 September 2025

Asiamet Resources Limited

("Asiamet" or the "Company")

BKM Copper Project Limestone Resource Drilling Update

Asiamet Resources Limited (AIM: ARS) is pleased to update on its limestone resource drilling programme at the Rinjen prospect, approximately 12km north of Asiamet's flagship BKM Copper heap leach project in Central Kalimantan, Indonesia.

Highlights:

·      Limestone drilling programme 50% complete: all holes intersecting limestone at target depth

·      Early assays confirm very high-quality limestone (+95% purity)

·      Securing a locally sourced limestone is a critical enabler for BKM, avoiding significant import costs and underpinning a low operating cost base

Asiamet's limestone resource drilling programme, being undertaken by the Company's in-house operations team is now 50% complete with 6 holes of the 12-hole programme finished in the initial resource area. All drillholes have intersected the limestone structure at varying depths and all holes have ended in limestone at our current target depth of 50m. Based on current progress, the programme is expected to complete by mid-October.

Assay results have been received for the first two holes and confirm the very high quality of the limestone source, with results exceeding 54% Calcium Oxide (CaO) as measured by XRF. This equates to a limestone quality exceeding 95%.  

Figure: Typical Limestone drill core

Darryn McClelland, CEO of Asiamet, commented:

"The KSK operational team is executing our limestone resource definition programme to plan, and we are pleased with the results to date showing continuation of the limestone from surface outcrop to depth and extending the dimensions of the deposit. The high quality of the limestone is especially pleasing as this typically translates into lower consumption of limestone in processing.

I look forward to providing further updates on this programme at the conclusion of drilling, together with a full interpretation of the results. Importantly, this work forms part of a wider package of optimisation initiatives, including soluble copper recovery improvement and a revised power solution, both of which will also be reported on soon. These enhancements are being incorporated into the BKM economic model supporting the ongoing strategic investor process which is progressing to plan."

**ENDS**

ON BEHALF OF THE BOARD OF DIRECTORS

Darryn McClelland, Chief Executive Officer

For further information, please contact:

Darryn McClelland
Chief Executive Officer, Asiamet Resources Limited
Email: [email protected]

Tony Manini
Chairman, Asiamet Resources Limited
Email: [email protected]

Investor Enquiries

Sasha Sethi

Telephone: +44 7891 677 441

Email: sasha.sethi@asiametresources.com

Nominated Adviser
Strand Hanson Limited

James Spinney / James Dance / Rob Patrick

Telephone: +44 20 7409 3494

Email: [email protected]

Broker

Shore Capital
Toby Gibbs / George Payne

Telephone: +44 20 7408 4050

Follow us on twitter @AsiametTweets

FORWARD-LOOKING STATEMENT

This announcement contains forward-looking statements that are based on the Company's current expectations and estimates. Forward-looking statements are frequently characterised by words such as "plan", "expect", "project", "intend", "believe", "anticipate", "estimate", "suggest", "indicate" and other similar words or statements that certain events or conditions "may" or "will" occur. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual events or results to differ materially from estimated or anticipated events or results implied or expressed in such forward-looking statements.   Such factors include, among others: the actual results of current exploration activities; conclusions of economic evaluations; changes in project parameters as plans continue to be refined; possible variations in ore grade or recovery rates; accidents, labour disputes and other risks of the mining industry; delays in obtaining governmental approvals or financing; and fluctuations in metal prices.  There may be other factors that cause actions, events or results not to be as anticipated, estimated or intended.  Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein.