OLIN and HUNTSMAN Announce Expiration of Hart-Scott-Rodino Waiting Period for Proposed Merger

Olin Corporation (NYSE: OLN) and Huntsman Corporation (NYSE: HUN) announced on September 11, 2026, the expiration of the waiting period under the U.S. Hart-Scott-Rodino Antitrust Improvements Act related to their pending merger. The expiration of this waiting period satisfies a key closing condition for the merger, which was overwhelmingly approved by shareholders of both companies on August 25, 2026. However, the transaction remains subject to additional regulatory approvals that are currently underway.

Olin Corporation is a leading global manufacturer and distributor of chemical products, as well as a prominent U.S. manufacturer of ammunition. The company produces a wide range of chemical products, including chlorine, caustic soda, and various vinyls and epoxies. Its ammunition segment, Winchester, is well-known for producing sporting and law enforcement ammunition, among other products. Huntsman Corporation, on the other hand, is a global manufacturer and marketer of diversified chemical products, generating approximately $6 billion in revenue from its continuing operations in 2025. The company operates over 55 manufacturing and research facilities across approximately 25 countries, serving a variety of consumer and industrial markets.

The strategic rationale behind the merger is likely rooted in the complementary nature of both companies' product offerings and market positions. By combining their operations, Olin and Huntsman aim to enhance their competitive edge in the chemical sector, streamline operations, and potentially realize significant cost synergies. The merger is expected to create a more robust entity capable of addressing diverse customer needs while optimizing supply chains and production efficiencies.

The chemical manufacturing sector is currently experiencing various dynamics, including fluctuations in raw material prices and increasing demand for sustainable products. The consolidation of two major players like Olin and Huntsman could position the combined entity to better navigate these challenges. As companies in the sector seek to innovate and adapt to changing market conditions, mergers and acquisitions are likely to remain a viable strategy for growth and resilience.

In conclusion, the expiration of the HSR waiting period marks a significant step forward for the merger between Olin Corporation and Huntsman Corporation. While the transaction still requires additional regulatory approvals, the potential combination of these two industry leaders could have broader implications for the chemical manufacturing landscape. As the sector continues to evolve, such strategic consolidations may pave the way for enhanced operational efficiencies and a more competitive market environment.