LiqTech Secures New DPF Orders, Driving Backlog to Highest Level in Years

LiqTech has increased direct customer engagement to identify filtration needs and convert commercial opportunities into additional orders.

Rhea-AI Summary

LiqTech International (Nasdaq: LIQT) secured new orders from established customers, bringing its diesel particulate filter backlog to its highest level in years.

Orders in the diesel particulate filter business increased 30% from January 1 to November 1 compared with the same period in 2025. Sales exceeded budget in each of the first three quarters of 2026, and the company said positive momentum continued into the fourth quarter. The new orders reflect demand across marine applications, including shipyards, and the data center sector.

4 points · 0 major

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Hollow bars mark forward-looking points. How the balance works

Positive

• Moderate pointNew orders from established customers brought the diesel particulate filter backlog to its highest level in years.
• Moderate pointSales exceeded budget in each of the first three quarters of 2026; LiqTech said momentum continued into the fourth quarter.
• Minor pointDiesel particulate filter orders increased 30% from January 1 to November 1 versus the same period in 2025.
• Minor point. Forward-looking: it has not happened yet and may not happen.Increased direct customer engagement targets new applications and additional orders within established businesses.

Negative

• None.

Key Figures

Sales orders growth: 30%

Sales orders growth

30%

January 1 to November 1 versus the same period in 2025

Key Terms

diesel particulate filter, silicon carbide, microfiltration, ultrafiltration

4 terms

diesel particulate filter technical

"new orders from established customers in its Diesel Particulate Filter (DPF) business"

A diesel particulate filter is a device in a diesel vehicle’s exhaust system that traps soot and tiny solid particles, like a coffee filter catching grounds from a pot, then periodically cleans itself or is cleaned to avoid clogging. For investors, it matters because filter performance and durability affect vehicle operating costs, regulatory compliance, resale value, and demand for parts and services—factors that influence manufacturers’, fleet operators’ and suppliers’ revenues and liabilities.

silicon carbide technical

"ceramic silicon carbide filtration technologies for gas and liquid purification"

Silicon carbide is a hard, durable material made from silicon and carbon, often used in industrial applications like cutting tools and electronics. Its ability to withstand high temperatures and conduct electricity efficiently makes it valuable in manufacturing advanced electronic devices. For investors, companies working with silicon carbide are seen as key players in the growing market for high-performance electronics and energy-efficient technologies.

microfiltration technical

"filters for both microfiltration and ultrafiltration applications"

A pressure-driven membrane filtration process that separates suspended solids, particulates and most microorganisms from a liquid by passing it through a porous membrane with pore sizes typically in the ~0.1–10 micrometer range (commercial applications commonly use 0.1–0.45 µm). It is used for clarification and particulate removal in pharmaceutical, biotech and industrial liquids; because its pores are relatively large compared with ultrafiltration or nanofiltration, microfiltration does not remove dissolved salts, small molecules or most viruses and therefore is not a substitute for sterilizing or molecular filtration. Common operating modes are dead-end (batch) and crossflow (continuous), both relying on a pressure differential to drive liquid through the membrane while particles are retained and periodically flushed or backwashed.

ultrafiltration technical

"filters for both microfiltration and ultrafiltration applications"

Ultrafiltration is a process that separates small particles and liquids from larger molecules or substances using a filter with tiny pores. It is often used in water treatment and medical applications to remove impurities or excess fluids. For investors, understanding ultrafiltration is important because innovations or changes in this technology can impact industries focused on clean water, healthcare, and filtration products.

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Strong sales performance throughout 2026 reflects growing demand across marine and data center applications

BALLERUP, Denmark, Nov. 10, 2026 (GLOBE NEWSWIRE) -- LiqTech International, Inc. (Nasdaq: LIQT) (“LiqTech” or the “Company”), a clean technology company specializing in advanced filtration technologies, today announced new orders from established customers in its Diesel Particulate Filter (DPF) business, bringing its DPF order backlog to its highest level in years.

The new orders reflect continued demand for LiqTech’s advanced filtration solutions and expanding applications across marine markets, including shipyards, and the data center sector.

LiqTech's DPF business has demonstrated consistently strong commercial performance throughout 2026, with sales exceeding budget in each of the first three quarters. This positive momentum continued into the fourth quarter. Sales order from January 1 to November 1 has an increase of 30% compared with the same period in 2025.

The continued order activity highlights the strength of LiqTech’s long-standing customer relationships and the growing opportunities to expand its DPF technology into additional applications and end markets.

As part of its strategy to accelerate growth within its established businesses, LiqTech has intensified direct customer engagement, including increased face-to-face meetings and closer collaboration with key accounts. These initiatives are focused on identifying emerging filtration requirements, developing new applications, and converting commercial opportunities into additional orders.

“These new orders and our consistently strong sales performance throughout 2026 demonstrate the resilience and growth potential of our DPF business,” said Fei Chen, Chief Executive Officer of LiqTech International. “With our order backlog reaching its highest level in years, we are encouraged by the continued demand from established customers and the expanding applications of our technology.

“Our silicon carbide and cordierite filtration solutions are designed to meet demanding diesel exhaust emission control requirements across a broad range of applications. By strengthening customer engagement and leveraging our proven technology portfolio, we see attractive opportunities to further expand our presence in marine, data centers, and other industrial markets.”

About LiqTech International Inc.

LiqTech International, Inc., a Nevada corporation, is a high-tech filtration technology company that provides state-of-the-art ceramic silicon carbide filtration technologies for gas and liquid purification. LiqTech’s silicon carbide membranes are designed to be used in the most challenging purification applications, and its silicon carbide filters are used to control diesel exhaust soot emissions. Using nanotechnology, LiqTech develops products using its proprietary silicon carbide technology, resulting in a wide range of component membranes, membrane systems, and filters for both microfiltration and ultrafiltration applications. By incorporating LiqTech’s SiC liquid membrane technology with the Company´s extensive systems design experience and capabilities, LiqTech offers unique, modular designed filtration solutions for the most difficult water purification applications.

For more information, please visit www.liqtech.com 

Follow LiqTech on LinkedIn: http://www.linkedin.com/company/liqtech-international 

Follow LiqTech on X: https://x.com/LiqTech

Forward–Looking Statement

This press release contains "forward-looking statements."  Although the forward-looking statements in this release reflect the good faith judgment of management, forward-looking statements are inherently subject to known and unknown risks and uncertainties that may cause actual results to be materially different from those discussed in these forward-looking statements.  Readers are urged to carefully review and consider the various disclosures made by us in the reports filed with the Securities and Exchange Commission, including the risk factors that attempt to advise interested parties of the risks that may affect our business, financial condition, results of operation, and cash flows.  If one or more of these risks or uncertainties materialize, or if the underlying assumptions prove incorrect, our actual results may vary materially from those expected or projected.  Readers are urged not to place undue reliance on these forward-looking statements, which speak only as of the date of this release.

We assume no obligation to update any forward-looking statements to reflect any event or circumstance that may arise after the date of this release.

LiqTech Company Contact                                         
Susan Keegan Elleskov
Head of Marketing
LiqTech International, Inc.
Phone: +45 31315941
www.liqtech.com

LiqTech Investor Contact                                         
Robert Blum
Lytham Partners, LLC                                 
Phone: 602-889-9700
liqt@lythampartners.com

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How much did LiqTech's diesel particulate filter orders grow in 2026?

Orders increased 30% from January 1 to November 1 compared with the same period in 2025. Sales also exceeded budget in each of the first three quarters of 2026.

What happened to LiqTech's diesel particulate filter backlog?

New orders from established customers brought LiqTech's diesel particulate filter backlog to its highest level in years. The orders reflect demand across marine applications, including shipyards, and the data center sector.