NX Filtration N.V.

Earnings Release • Dec 19, 2025

NX Filtration expects revenue growth of approximately 40% in the second half of 2025, on track for medium term growth outlook

Hengelo, the Netherlands, 19 December 2025, 07:00 CET

HENGELO, THE NETHERLANDS – NX Filtration N.V. (Euronext Amsterdam: NXFIL), the global provider of breakthrough hollow fiber filtration technology for pure and affordable water with strong sustainability benefits, today publishes its expected revenues for the second half of 2025, and a revised outlook for the full year 2025. NX Filtration is on track towards its mediumterm objective of realizing revenue growth of on average 50% per year, whilst gross margins continue to be high, underscoring its strong technology position.

Revenues for the second half of 2025 are expected to be approximately €7.4 million, representing a year-on-year growth of approximately 40%. Full-year 2025 revenues are expected to be approximately €14 million, representing a year-on-year growth of over 25%, which is an adjustment from our previous outlook of revenue growth between 50% and 70%.

NX Filtration experienced a relatively slow start of the year, with year-on-year revenue growth of 12% in H1 2025, as communicated in August 2025. We were impacted by evolving lead times in the project schedules of our OEMs and end-customers. Although this situation continued in the second half of the year we did significantly increase our revenue growth to approximately 40%. The impacted projects remain part of our order- and delivery pipeline for 2026 and beyond.

We continue to be strongly positioned to continue our growth trajectory in line with our medium-term objectives. We made strong progress in our OEM funnel, which grew from 160 OEMs at the end of 2024 to 180 OEMs today. More importantly, we saw many OEMs progressing further within the funnel towards first projects. Examples include Veolia (France) and Ceramed Engineers (India), with whom we secured our first Hollow Fiber Nanofiltration (HFNF) orders. In parallel to our progress on our HFNF OEM funnel, we continue to build out our business for Ultrafiltration (UF), with newly contracted OEMs including H2O Innovation (Canada), Wabag (India) and Lenntech (the Netherlands), and Microfiltration (MF), for which we now have references across most major soft drink producers and global brewery groups. With this basis, we benefit from a strong pipeline of project opportunities for 2026 and beyond.

2025 was also a transition year in terms of cost and Capex reduction. We completed the transfer of all our activities to our new factory and launched various efficiency programs. We also narrowly focused our research and design activities, to further cement our broad and competitive portfolio across all three product ranges. These efforts have already resulted in lower operating costs in 2025, in conjunction with further business growth. Also with regards to Capex, we are fully invested in our new factory, with 2025 Capex more than 70% lower than

2024, and further reductions expected for 2026. We continue to proactively align our cost levels to the timing of realizing our growth, therewith controlling our path towards break-even operations. We continue to expect our cash position to be sufficient to fund our growth ambitions well into the future.

Floris Jan Cuypers, CEO of NX Filtration, states:

"I am confident that we are on track towards our growth path of on average 50% per year, based on the progress we made in our OEM funnel, a high-quality pipeline with clear project opportunities in sight. Over the past year we have established a fierce focus on commercial execution and further optimized our approach towards sweet-spot product-market combinations. We benefit from a proven track-record of more than 50 operational HFNF projects, and a further 30 projects in commissioning phase, which are realizing strong benefits for our customers. On that basis I look ahead to 2026 with full confidence."

Major milestone of commissioning of the large scale HFNF wastewater reuse plant in Mexico, for which NX Filtration received a repeat order in 2025 to double the capacity

NX Filtration's 2025 annual report will be published on 9 February 2026 and will be available on the Investor Relations section of the website www.nxfiltration.com.

About NX Filtration

NX Filtration is a provider of membrane technology for producing pure and affordable water to improve quality of life. Its hollow fiber nanofiltration (HFNF) technology removes micropollutants (including pharmaceuticals, medicines, PFAS and insecticides), color and selective salts, but also bacteria, viruses and nanoplastics, from water whilst offering strong sustainability benefits. For further information on NX Filtration please visit www.nxfiltration.com

For enquiries, please contact:

NX Filtration Michiel Staatsen, COO and Investor Relations m.staatsen@nxfiltration.com +31 85 047 9900

Notes to the press release

This is a public announcement by NX Filtration N.V. pursuant to section 17 of the European Market Abuse Regulation (596/2014). This public announcement does not constitute an offer, or any solicitation of any offer, to buy or subscribe for any securities in NX Filtration N.V. The reported data in this press release have not been audited.

Use of non-IFRS information

In presenting and discussing the NX Filtration's financial position, operating results and cash flows, management uses certain non-IFRS financial measures. These non-IFRS financial measures should not be viewed in isolation as alternatives to the equivalent IFRS measure and should be used in conjunction with the most directly comparable IFRS measures. Non-IFRS financial measures do not have standardized meaning under IFRS and therefore may not be comparable to similar measures presented by other companies.

Forward looking statements

This press release may include forward-looking statements. All statements other than statements of historical facts may be forward-looking statements. These forward-looking statements may be identified by the use of forward-looking terminology, including the terms such as guidance, expected, step up, announced, continued, incremental, on track, accelerating, ongoing, innovation, drives, growth, optimizing, new, to develop, further, strengthening, implementing, well positioned, roll-out, expanding, improvements, promising, to offer, more, to be or, in each case, their negative or other variations or comparable terminology, or by discussions of strategy, plans, objectives, goals, future events or intentions. Forward-looking statements may and often do differ materially from actual results. Any forward-looking statements reflect NX Filtration's current view with respect to future events and are subject to risks relating to future events and other risks, uncertainties and assumptions relating to NX

Filtration's business, results of operations, financial position, liquidity, prospects, growth or strategies. Forward looking statements reflect the current views of NX Filtration and assumptions based on information currently available to NX Filtration. Forward-looking statements speak only as of the date they are made, and NX Filtration does not assume any obligation to update such statements, except as required by law. NX Filtration's revenue outlook estimates are management estimates resulting from NX Filtration's pursuit of its strategy. NX Filtration can provide no assurances that the estimated future revenues will be realized and the actual total revenues for 2025 could differ materially. The expected total revenues have also been determined based on assumptions and estimates that NX Filtration considered reasonable at the date these were made. These estimates and assumptions are inherently uncertain and reflect management's views which are also based on its historic success of being assigned projects, which may materially differ from the success rates for any future projects. These estimates and assumptions may change as a result of uncertainties related to the economic, financial or competitive environment and as a result of future business decisions of NX Filtration or its clients, such as cancellations or delays, as well as the occurrence of certain other events.