Select Energy Services, Inc., an oilfield services company, provides water management and chemical solutions to the onshore oil and gas industry in the United States.

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.

FutureFuel Corp., through its subsidiary, FutureFuel Chemical Company, manufactures and sells diversified chemical, bio-based fuel, and bio-based specialty chemical products in the United States.

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.

Element Solutions Inc operates as a specialty chemicals company in the United States, China, and internationally. The company operates in two segments, Electronics, and Industrial & Specialty.

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.

Ingevity Corporation manufactures and sells specialty chemicals and activated carbon materials in North America, the Asia Pacific, Europe, the Middle East, Africa, and South America.

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.

Cabot Corporation operates as a specialty chemicals and performance materials company. It operates through three segments: Reinforcement Materials, Performance Chemicals, and Purification Solutions.

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

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.

Westlake Corporation manufactures and supplies petrochemicals, polymers, and building products worldwide. It operates through two segments, Performance and Essential Materials; and Housing and Infrastructure Products.

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.

Olin Corporation manufactures and distributes chemical products in the United States, Europe, and internationally. It operates through three segments: Chlor Alkali Products and Vinyls; Epoxy; and Winchester.

Axalta Coating Systems Ltd., through its subsidiaries, manufactures, markets, and distributes high-performance coatings systems in North America, Europe, the Middle East, Africa, the Asia Pacific, and Latin America.