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NWPX vs WLK

NWPX Infrastructure, Inc. Common Stock and Westlake Corporation

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NWPX Infrastructure, Inc. Common Stock

NWPX Infrastructure, Inc., together with its subsidiaries, engages in the manufacture and sale of water-related infrastructure products in North America and Canada. It operates through two segments, Engineered Steel Pressure Pipe (SPP) and Precast Infrastructure and Engineered Systems (Precast). The SPP segment provides large-diameter and high-pressure steel pipeline systems for use in water infrastructure applications, which are primarily related to drinking water systems. Its products are also used for hydroelectric power systems, wastewater systems, seismic resiliency, and other applications. In addition, this segment makes products for industrial plant piping systems and certain structural applications. The Precast segment offers stormwater and wastewater technology products, precast, and reinforced concrete products, including reinforced concrete pipe, manholes, box culverts, vaults and catch basins, pump lift stations, oil water separators, biofiltration units, steel casing pipes, and bar-wrapped concrete cylinder pipes, as well as pipeline system joints, fittings, specialized components, and other environmental and engineered solutions. The company sells its water infrastructure products under the ParkUSA, Geneva Pipe and Precast, Permalok, and Northwest Pipe Company brands primarily to installation contractors. The company was formerly known as Northwest Pipe Company and changed its name to NWPX Infrastructure, Inc. in June 2025. NWPX Infrastructure, Inc. was incorporated in 1966 and is headquartered in Vancouver, Washington.

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Westlake Corporation

Westlake Corporation manufactures and markets performance and essential materials, and housing and infrastructure products in the United States, Canada, Germany, China, Mexico, Brazil, France, Italy, and internationally. The Performance and Essential Materials segment offers ethylene, polyethylene, styrene, chlor-alkali, chlorinated derivative products, ethylene dichloride, vinyl chloride monomer, polyvinyl chloride (PVC), epoxy specialty resins, and base epoxy resins and intermediaries. 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; and PVC compounds for various housing, medical, and automobile products. This segment also offers 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 is a subsidiary of TTWF LP.

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