Innospec Inc. develops, manufactures, blends, markets, and supplies specialty chemicals in the United States, rest of North America, the United Kingdom, rest of Europe, and internationally.

H.B. Fuller Company, together with its subsidiaries, formulates, manufactures, and markets adhesives, sealants, coatings, polymers, tapes, encapsulants, additives, and other specialty chemical products worldwide.

Quaker Chemical Corporation develops, produces, and markets various formulated chemical specialty products for a range of heavy industrial and manufacturing applications.

Minerals Technologies Inc. develops, produces, and markets various specialty mineral, mineral-based, and synthetic mineral products, and supporting systems and services. The company operates through three segments: Performance Materials, Specialty Minerals and Refractories.

Northern Technologies International Corporation develops and markets rust and corrosion inhibiting products and services in North America, South America, Europe, Asia, the Middle East and internationally.

Orion Engineered Carbons S.A., together with its subsidiaries, manufactures and sells carbon black products in Germany, the United States, South Korea, Brazil, China, South Africa, the rest of Europe, and internationally.

Oil-Dri Corporation of America, together with its subsidiaries, develops, manufactures, and markets sorbent products in the United States and internationally. It operates in two segments, Retail and Wholesale Products Group; and Business to Business Products Group.

NewMarket Corporation, through its subsidiaries, engages in the petroleum additives business. The company offers lubricant additives for use in various vehicle and industrial applications, including engine oils, transmission fluids, off-road powertrain and hydraulic systems, gear oils, hydraulic oils, turbine oils, and other applications where metal-to-metal moving parts are utilized; engine oil additives designed for passenger cars, motorcycles, on and off-road heavy duty commercial equipment, locomotives, and engines in ocean-going vessels; driveline additives designed for products, such as transmission fluids, axle fluids, and off-road powertrain fluids; and industrial additives designed for products for industrial applications consisting of hydraulic fluids, grease, industrial gear fluids, and industrial specialty applications, such as turbine oils.

Hawkins, Inc. blends, manufactures, and distributes chemicals and other specialty ingredients in the United States and internationally. It operates through three segments: Industrial, Water Treatment, and Health and Nutrition.

Kronos Worldwide, Inc. produces and markets titanium dioxide pigments (TiO2) in Europe, North America, the Asia Pacific, and internationally. The company produces TiO2 in two crystalline forms, rutile and anatase to impart whiteness, brightness, opacity, and durability for various products, including paints, coatings, plastics, paper, fibers, and ceramics, as well as for various specialty products, such as inks, foods, and cosmetics.

Perimeter Solutions, SA manufactures and supplies firefighting products and lubricant additives in the United States, Germany, and internationally. It operates in two segments, Fire Safety and Oil Additives.

Ecovyst Inc. provides specialty catalysts and services in the United States, the Netherlands, the United Kingdom, and internationally. The company operates through two segments, Ecoservices and Catalyst Technologies.

Sensient Technologies Corporation, together with its subsidiaries, develops, manufactures, and markets colors, flavors, and other specialty ingredients in North America, Europe, the Asia Pacific, and internationally.