25 March 2026

Metir plc

("Metir", the "Group" or the "Company")

Qatar Continuous Toxicity Monitoring Project Update

Metir plc (AIM: MET), the leading global provider of fast-response, mobile and point-of-use water and environmental monitoring technologies, today provides an update on the Continuous Toxicity Monitoring ("CTM") units in Qatar installed by its trading company, Modern Water.

Further to the trading update on 2 December 2025, the Group has received a payment of £37k of the closing deferred payment schedule from its regional partner Avanceon for the CTM installation in Qatar.

The majority of the installations are capable of being fully operational. However, Metir and Avanceon are working closely together to resolve some technical and operational issues at certain locations in Doha relating to the local handling, storage and use of the key Microtox® reagents installed in some CTM units in the field. 

Microtox® is a highly sensitive gold standard reagent and requires trained storage and handling. It is anticipated that additional training and quality control measures provided by Modern Water for Avanceon to install Microtox® in local conditions will resolve the current CTM consumable issues.

The Group continues to support Avanceon remotely. Due to the current major disruption in the region, it is uncertain when Metir will be able to send additional technical support to Doha to provide local training and rectify these remaining issues; however, efforts are ongoing to action this as soon as it is safely practicable. As a result, the balance of the Avanceon closing deferred payment schedule of £161k and the additional contract performance payment of £50k will be delayed beyond Q1 2026.

There are an additional 17 water pumping stations in the region of Doha that can be protected by CTM installations. Avanceon has notified Modern Water that, pending resolution of the current temporary operational setbacks, a joint proposal by Modern Water and Avanceon should be made to install CTMs as soon as practicable in all of these locations, enhancing national water security for the entire vicinity, which is now an essential requirement.

The Board will update shareholders on further developments as soon as possible.

Bob Moore, Executive Chairman and Chief Executive Officer of Metir, commented:

"We are pleased with the progress made on the CTM project in Qatar, with the majority of the installations having been fully operational and delivering value and critical water security from its real-time toxic water monitoring. The remaining technical challenges are localised and we are working closely with our partner Avanceon to resolve them. The Group is willing to commission the build of additional CTMs as circumstances require in Qatar and elsewhere in the region.

While current regional disruption may affect the timing of the project completion, the Group's confidence in the long-term opportunities in the Middle East remains unchanged."

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About Metir

Metir plc is a leading global provider of several fast-response, mobile and point-of-use water and environmental monitoring technologies. Through its two established trading divisions, Modern Water and Microsaic Systems, a specialist in mobile PFAS monitoring, the Company develops and supplies innovative, easy-to-use solutions that deliver rapid, accurate water and liquids quality results, helping industries, utilities and regulators monitor safety and compliance in real time.

With a strong focus on data-driven insight and field-ready design, Metir's technology supports critical decision-making across sectors, including environmental monitoring, public health and industrial process management.

Headquartered in York, UK, Metir serves worldwide customers and is dedicated to advancing water testing standards through innovative, accessible solutions.

For more information, please visit: https://www.metirplc.com