Olin Corp (NYSE: OLN) is a chemicals and ammunition manufacturing company that operates as a vertically integrated producer of chlor alkali products, epoxy materials, and small caliber ammunition. Revenue comes from transactional sales of manufactured chemical products and ammunition across three segments: Chlor Alkali Products and Vinyls (54% of FY2025 sales), Epoxy (20% of FY2025 sales), and Winchester (26% of FY2025 sales, derived from the remaining share). Olin is incorporated in Virginia, founded in 1892, and headquartered in Clayton, MO. All three segments are capital-intensive manufacturing businesses, as stated in the FY2025 10-K filed 2026-02-20. The Chlor Alkali Products and Vinyls segment produces chlorine, caustic soda, EDC, VCM, and related products. The Epoxy segment covers aromatics through formulated resin solutions. The Winchester segment serves civilian sporting shooters and the U.S. military with ammunition and components.

Revenue model

Transactional sales of manufactured chemical products and ammunition. Segment revenue is driven by commodity chemical pricing for Chlor Alkali and Epoxy, and by civilian and military demand for Winchester ammunition. No subscription or royalty model disclosed in the filing.

Products and services

Chlor Alkali Products and Vinyls: chlorine, caustic soda, ethylene dichloride (EDC), vinyl chloride monomer (VCM), methyl chloride, methylene chloride, chloroform, carbon tetrachloride, perchloroethylene, hydrochloric acid, hydrogen, bleach products, potassium hydroxide. Epoxy: acetone, phenol, allyl chloride, epichlorohydrin, liquid epoxy resins, solid epoxy resins, converted epoxy resins, additives. Winchester: sporting ammunition, reloading components, small caliber military ammunition and components, industrial cartridges, clay targets, U.S. military contracted project revenue. (Per FY2025 10-K filed 2026-02-20.)

Customers and end markets

End markets include industrial chemical consumers for chlor alkali and epoxy products, civilian sporting shooters for Winchester ammunition, and the U.S. military for small caliber ammunition and contracted project work. No specific customer concentration percentages are disclosed in the provided filing excerpts.

Value-chain role

Vertically integrated manufacturer and distributor. Olin produces upstream chemical inputs and downstream formulated products, and manufactures finished ammunition. It sits at the manufacturing stage of the chemical and defense/sporting goods supply chains.

Geographic exposure

Global manufacturer and distributor of chemical products; U.S. manufacturer of ammunition. Principal executive offices in Clayton, MO. Specific country-level revenue breakdown not disclosed in the provided filing excerpts.

Source: SEC 10-K, filed 2026-02-20

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