The information contained within this Announcement is deemed by MYCELX Technologies Corporation 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 ("MAR").

3 November 2025

MYCELX Technologies Corporation

("MYCELX" or the "Company")

Trading Update

MYCELX Awarded $3.9m Produced Water Project in the US Permian Basin

MYCELX Technologies Corporation (AIM: MYX), the clean water and clean air technology company, is pleased to announce it has been awarded a $3.9 million produced water treatment project in the US Permian Basin, the most active and productive oil region in the world. The system will be owned and operated by a major Midstream Operating Company that provides water management services to major producers in the region. The company continues to be in advanced discussions on a number of additional US Permian Basin projects.

Under the contract, MYCELX will supply its patented REGEN system, an advanced water treatment technology with a proven track record of outperforming the competition. The system will be installed at one of the operator's key water handling facilities to manage their customers' significantly increased water volumes resulting from rising water-to-oil ratios during production and induced seismicity caused by pressurized disposal well usage. This project, which is expected to be delivered in 2026 but is included within current market expectations, marks MYCELX's expanding presence in the US Permian Basin and underscores growing industry confidence in the Company's innovative and proven water treatment solutions.

MYCELX Presents at Middle East Symposium on Successful REGEN Retrofit in Oman

The Company was pleased to address the recent Middle East Produced Water Oilfield Symposium and Exhibition in Qatar, presenting the case study on MYCELX's installation of its first REGEN Retrofit Package at the Enhanced Oil Recovery ('EOR') field operated by Petroleum Development Oman ('PDO'). Underperforming nutshell filter vessels can now be modified to transition to MYCELX's REGEN filter media, enabling increased production and delivering significantly improved water quality and performance reliability. The Company is set to deliver its second project with PDO later this year.

These projects and the recent technical presentation highlight MYCELX's continued global momentum and the growing recognition of its innovative, proven solutions for the most demanding produced water treatment challenges.

Connie Mixon, CEO, commented:

"We are delighted to have been selected by a leading Midstream Operator in the US Permian Basin for this significant project, which further validates the strength and differentiation of our REGEN technology. This award represents an important milestone in expanding our presence in the most active energy region in the world and demonstrates the industry's increasing confidence in MYCELX's proven ability to solve complex produced water challenges.

The recent recognition at the Produced Water Oilfield Symposium in Qatar and our continued collaboration with Petroleum Development Oman further underscore the growing global demand for advanced water treatment solutions that deliver measurable performance and reliability. With a strong pipeline of opportunities ahead, MYCELX is well positioned to build on this momentum and continue driving sustainable growth in both domestic and international markets."

For further information, please contact: