LiqTech International (LIQT)

The company is best known for its silicon carbide ceramic membranes, which are valued for durability, chemical resistance, and performance in demanding filtration environments. These membranes are incorporated into complete liquid filtration systems and related aftermarket services, allowing LiqTech to sell both core components and integrated solutions. Its systems can be used where conventional filtration materials face harsh operating conditions, including high temperatures, corrosive liquids, or challenging waste streams.

LiqTech also manufactures ceramic diesel particulate filters that help reduce soot and black carbon emissions from diesel engines. This business aligns the company with stricter environmental standards and the need for cleaner industrial and transportation equipment. In addition, it produces plastic components for customers across multiple industries, broadening its manufacturing base beyond filtration.

The company reports through three main segments: Systems and Aftermarket, Filters and Membranes, and Components. This structure reflects a mix of higher-value engineered systems, recurring replacement and service demand, and component manufacturing. For investors, LiqTech represents a small-cap industrial technology company focused on specialized filtration, pollution control, and the broader shift toward cleaner water and cleaner air solutions.