LyondellBasell Industries N.V. operates as a chemical company in the United States, Germany, Mexico, Italy, Poland, France, Japan, China, the Netherlands, and internationally. The company operates in six segments: Olefins and Polyolefins—Americas; Olefins and Polyolefins—Europe, Asia, International; Intermediates and Derivatives; Advanced Polymer Solutions; Refining; and Technology. It produces and markets olefins and co-products, polyethylene, and polypropylene; and propylene oxide and derivatives; oxyfuels and related products; and intermediate chemicals, such as styrene monomer, acetyls, ethylene oxide, and ethylene glycol. In addition, the company produce and markets compounding and solutions including polypropylene compounds, engineered plastics, masterbatches, engineered composites, colors and powders, and advanced polymers including catalloy and polybutene-1; and refines heavy, high-sulfur crude oil and other crude oils, as well as refined products, including gasoline and distillates. Further, it develops and licenses chemical and polyolefin process technologies; manufactures and sells polyolefin catalysts; and serves food packaging, home furnishings, automotive components, and paints and coatings applications. LyondellBasell Industries N.V. was incorporated in 2009 and is headquartered in Houston, Texas.

RPM International Inc. manufactures and sells specialty chemicals for the industrial, specialty, and consumer markets worldwide. It offers waterproofing, coating, and traditional roofing systems; sealants, air barriers, tapes, and foams; residential home weatherization systems; roofing and building maintenance services; sealing and bonding, subfloor preparation, flooring, and glazing solutions; resin flooring systems, polyurethane, MMA waterproof, epoxy floor paint and coatings, concrete repair, and protection products; fire stopping and intumescent steel coating, and manufacturing industry solutions; rolled asphalt roofing materials and chemical admixtures; concrete and masonry admixtures, concrete fibers, curing and sealing compounds, structural grouts and mortars, epoxy adhesives, injection resins, polyurethane foams, floor hardeners and toppings, joint fillers, industrial and architectural coatings, decorative color/stains/stamps, and restoration materials; insulated building cladding materials; and concrete form wall systems. It also provides flooring systems; fiberglass reinforced plastic gratings and shapes; corrosion-control coating, containment and railcar lining, fire and sound proofing, and heat and cryogenic insulation products; specialty construction products; amine curing agents, reactive diluents, and epoxy resins; fluorescent colorants and pigments; shellac-based-specialty and marine coatings; fire and water damage restoration, carpet cleaning, and disinfecting products; fuel additives; wood treatments, coatings, and touch-up products; and nail enamels, polishes, and coating components. In addition, it offers solutions for the paint contractors and DIYers, concrete restoration and flooring, metallic and faux finish coatings, cleaners, and hobby paints and cements; and caulks, adhesives, insulating foams, and patches, as well as spackling, glazing, and repair products. The company was incorporated in 1947 and is headquartered in Medina, Ohio.

Westlake Corporation engages in the manufacture and marketing of performance and essential materials, and housing and infrastructure products in the United States, Canada, Germany, China, Mexico, Brazil, France, Italy, Taiwan, and internationally. The company operates through two segments: Performance and Essential Materials and Housing and Infrastructure Products. The Performance and Essential Materials segment offers ethylene, polyethylene, styrene, chlorinated derivative products, ethylene dichloride, vinyl chloride monomer, polyvinyl chloride (PVC), epoxy specialty resins, and base epoxy resins and intermediaries, as well as chlor-alkali, such as chlorine and caustic soda. The Housing and Infrastructure Products segment provides residential PVC sidings; PVC trim and mouldings; architectural stone veneers; windows; PVC decking; PVC films for various inflatables, wallcovering, and tape and roofing applications; polymer composite and cement roof tiles; PVC pipes and fittings for various water, sewer, electrical, and industrial applications; PVC compounds used in various housing, medical, and automobile products; and consumer and commercial products, such as landscape edging; industrial, home, and office matting; marine dock edging; and masonry joint controls. It offers its products to chemical processors, plastics fabricators, small construction contractors, municipalities, and supply warehouses for use in various consumer and industrial markets, including residential construction, flexible and rigid packaging, automotive products, healthcare products, water treatment, wind turbines, and coatings, as well as other durable and non-durable goods. The company was formerly known as Westlake Chemical Corporation and changed its name to Westlake Corporation in February 2022. Westlake Corporation was founded in 1986 and is headquartered in Houston, Texas. Westlake Corporation operates as a subsidiary of TTWF LP.

Eastman Chemical Company operates as a specialty materials company in the United States, China, and internationally. The company's Additives & Functional Products segment offers amine derivative-based building blocks, intermediates for surfactants, metam-based soil fumigants, and organic acid-based solutions; specialty coalescent and solvents, paint additives, and specialty polymers; and heat transfer and aviation fluids. It serves transportation, personal care, wellness, food, feed, agriculture, building and construction, water treatment, energy, consumables, durables, and electronics markets. Its Advanced Materials segment provides copolyesters, cellulosic biopolymers, cellulose esters, polyvinyl butyral sheets, and window and protective films for value-added end uses in the transportation, durables, electronics, building and construction, medical and pharma, and consumables markets. The company's Chemical Intermediates segment offers olefin and acetyl derivatives, ethylene, and commodity solvents; and primary non-phthalate and phthalate plasticizers, and niche non-phthalate plasticizers for industrial chemicals and processing, building and construction, health and wellness, and food and feed. Its Fibers segment provides cellulose acetate tow, triacetin, cellulose acetate flake, acetic acid, and acetic anhydride for use in filtration media primarily cigarette filters; natural and solution dyed acetate yarns, and staple fiber for use in consumables, and health and wellness markets; and wet-laid nonwoven media, specialty and engineered papers, and cellulose acetate fibers for transportation, industrial, agriculture and mining, and aerospace markets. The company was founded in 1920 and is headquartered in Kingsport, Tennessee.

Cabot Corporation operates as a specialty chemicals and performance materials company. The company operates through two segments, Reinforcement Materials and Performance Chemicals. It offers reinforcing carbons that are used in tires as a rubber reinforcing agent and performance additive, as well as in industrial products, such as hoses, belts, extruded profiles, and molded goods; and engineered elastomer composites solutions. The company also provides specialty carbons for use in inks, coatings, plastics, adhesives, toners, batteries, and displays; conductive additives and fumed alumina used in lead acid and lithium-ion batteries for electric vehicles; fumed silica used in adhesives, sealants, cosmetics, batteries, inks, toners, silicone elastomers, coatings, polishing slurries, and pharmaceuticals; and fumed alumina for use in various products, including inkjet media, lighting, coatings, cosmetics, and polishing slurries. In addition, it offers aerogel, a hydrophobic, silica-based particle to use in various thermal insulation and specialty chemical applications; masterbatch and conductive compound products that are used in automotive, industrial, packaging, infrastructure, agriculture, consumer products, and electronics industries; and inkjet colorants for inkjet printing applications, as well as carbon nanotubes and fumed metal oxides. The company sells its products through distributors and sales representatives in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. Cabot Corporation was founded in 1882 and is headquartered in Boston, Massachusetts.

Avient Corporation operates as a formulator of material solutions in the United States, Canada, Mexico, Europe, South America, and Asia. It operates in two segments, Color, Additives and Inks; and Specialty Engineered Materials. The Color, Additives and Inks segment offers custom color and additive concentrates in solid and liquid form for thermoplastics, dispersions for thermosets, and specialty inks; custom-formulated liquid system, such as polyester, vinyl, natural rubber and latex, polyurethane, and silicone; and proprietary inks. Its products are used in medical and pharmaceutical devices, food packaging, personal care and cosmetics, transportation, building products, wire and cable, recreational and athletic apparel, construction and filtration, outdoor furniture, healthcare, textiles and appliances, and industrial markets. The Specialty Engineered Materials segment provides specialty polymer formulations, services, and solutions for designers, assemblers, and processors of thermoplastic materials. It sells its products through direct sales personnel, distributors, and commissioned sales agents. The company was formerly known as PolyOne Corporation and changed its name to Avient Corporation in June 2020. Avient Corporation was founded in 1885 and is headquartered in Avon Lake, Ohio.

Huntsman Corporation manufactures and sells diversified organic chemical products worldwide. The company operates in three segments: Polyurethanes, Performance Products, and Advanced Materials. The Polyurethanes segment offers polyurethane chemicals, including methyl diphenyl diisocyanate, polyether and polyester polyols, and thermoplastic polyurethane; and aniline, benzene, nitrobenzene and other co-products. The Performance Products segment manufactures amines, such as polyetheramines, ethyleneamines, DGA Agent, JEFFCAT catalysts, and E-GRADE specialty amines and carbonates; and maleic anhydrides. The Advanced Materials segment offers epoxy, phenoxy, acrylic, polyurethane, and acrylonitrile-butadiene-based polymer formulations; and thermoset resins, curing and toughening agents, and carbon nanomaterials. The company provides pre-and post-sales technical service support to customers. Its products are used in a range of applications, including adhesives, aerospace, automotive, construction products, durable and non-durable consumer products, electronics, insulation, packaging, coatings and construction, power generation, and refining, as well as serves the elastomers, insulation, footwear, furniture, industrial, oil and gas, liquid natural gas transport, printed circuit boards, consumer, appliances, electrical power transmission and distribution, recreational sports equipment, and medical appliances markets. The company sells its products through a network of distributors and agents. Huntsman Corporation was founded in 1970 and is headquartered in The Woodlands, Texas.

Rayonier Advanced Materials Inc. manufactures and sells cellulose specialty products in the United States, China, Latin America, Canada, Japan, Europe, Latin America, other Asian countries, and internationally. It operates through High Purity Cellulose, Paperboard, and High-Yield Pulp segments. The company's products include cellulose specialties, which are natural polymers that are used as raw materials to manufacture a range of consumer-oriented products, such as liquid crystal displays, impact-resistant plastics, thickeners for food products, pharmaceuticals, cosmetics, cigarette filters, high-tenacity rayon yarn for tires and industrial hoses, food casings, paints, and lacquers. It also offers commodity products, such as commodity viscose pulp used in woven applications, including rayon textiles for clothing and other fabrics, as well as in non-woven applications comprising baby wipes, cosmetic and personal wipes, industrial wipes, and mattress ticking; and absorbent materials consisting of fluff fibers that are used as an absorbent medium in disposable baby diapers, feminine hygiene products, incontinence pads, convalescent bed pads, industrial towels and wipes, and non-woven fabrics. In addition, the company provides paperboards for packaging, printing documents, brochures, promotional materials, paperback books and catalog covers, file folders, tags, and lottery tickets; and high-yield pulps to produces hardwood aspen, maple, and birch species for paperboard, packaging, printing and writing papers, and various other paper products. The company was founded in 1926 and is headquartered in Jacksonville, Florida.