LiqTech International, Inc., a clean technology company, engages in the provision of various technologies for the gas and liquid purification by manufacturing ceramic silicon carbide filters. The company manufactures and sells ceramic membranes for the filtration of liquid under the LiqTech and Cometas brand names that are used for the filtration of produced water, pre-filtration of reverse osmosis drinking water, ballast water treatment, waste water treatment, and producing clean drinking water, as well as for various industrial applications. It also offers diesel particulate filters to control the soot exhaust particles from diesel engines for the verified retrofit and the original equipment manufacturer market; and kiln furniture to support ceramics during the firing process for the refractory industry. The company sells its products to industrial customers in the United States, Canada, Europe, Asia, and South America. LiqTech International, Inc. was incorporated in 2004 and is headquartered in Ballerup, Denmark.