What are the key financial and operational synergies expected from the Olin-Huntsman merger, according to the joint proxy statement?

The joint proxy statement states that the merger is expected to deliver cost and integration synergies of more than $400 million, plus additional revenue synergies not included in those projections. Specifically, vertical integration of Huntsman's amines business with Olin's ethylene dichloride (EDC) and caustic soda is expected to make the combined business one of the lowest-cost amines producers globally, enhancing growth in performance amines and increasing returns on Olin’s EDC production. Additionally, raw material integration benefits—driven by shifting to internal supply of chlorine and caustic soda into MDI production using existing pipeline infrastructure at Huntsman’s Geismar, Louisiana site—are forecast to exceed $100 million beginning in 2031, after expiration of third-party supply agreements; this integration will expand downstream chlorine outlets, increase chlor-alkali utilization, free up additional caustic soda for sale, and strengthen the combined company’s cost position.

When and how will shareholders vote on the Olin-Huntsman merger, and what regulatory milestone preceded the vote?

Shareholders of both Olin Corp. and Huntsman Corp. will vote on the proposed all-stock 'merger of equals' on August 25, with separate special meetings: Olin’s at 8:00 am Central Time and Huntsman’s one hour later. The vote follows the July 13 declaration of effectiveness by the U.S. Securities and Exchange Commission of Olin’s merger registration statement, which was originally submitted on July 2; this regulatory approval coincided with the issuance of the definitive joint proxy statement and a separate Q&A document for shareholders.

Olin, Huntsman Shareholders to Vote on Merger Aug. 25

Jul 15, 2026

Olin and Huntsman shareholders will vote on their proposed all-stock merger on August 25, targeting over $400 million in cost synergies. The combination aims to vertically integrate chlor-alkali and amine businesses, reducing costs and enhancing MDI production efficiency.

chemweek

Olin, Huntsman set shareholder votes on merger for August 25

Investing.com

2026-06-22

Europe Top Stories: Weekly Summary

2026-06-23

Chlor-alkali integration critical to Olin merger – Huntsman

2026-06-29

Huntsman Executives: Chlor-Alkali Integration is Core Value of Merger with Olin

2026-07-15

Olin, Huntsman Shareholders to Vote on Merger Aug. 25

Olin, Huntsman Shareholders to Vote on Merger Aug. 25

FAQ