OLN

EX-99.1

2 exhibit991q32026earningspr.htm

EX-99.1 3Q26 EARNINGS RELEASE

Document

Exhibit 99.1

Investor Contact: Steve Keenan

(314) 719-1755

InvestorRelations@Olin.com

News

Olin Corporation, 190 Carondelet Plaza, Suite 1530, Clayton, MO 63105

Olin Announces Third Quarter 2026 Results

Highlights

•Third quarter 2026 net income of $14.4 million, or $0.13 per diluted share

•Quarterly adjusted EBITDA of $191.4 million

•Expect Olin and Huntsman merger to close first quarter 2027

•Substantial progress made with integration planning

Clayton, MO, October 29, 2026 – Olin Corporation (NYSE: OLN) announced financial results for the third quarter ended September 30, 2026. Third quarter 2026 reported net income was $14.4 million, or $0.13 per diluted share, which compares to third quarter 2025 reported net income of $42.8 million, or $0.37 per diluted share. Third quarter 2026 adjusted EBITDA of $191.4 million excludes depreciation and amortization expense of $114.4 million, acquisition-related costs of $13.7 million, and restructuring charges of $1.7 million. Third quarter 2025 adjusted EBITDA was $222.4 million. Sales in the third quarter 2026 were $1,747.7 million, compared to $1,713.2 million in the third quarter 2025.

Ken Lane, President and Chief Executive Officer, said, “During the third quarter, Olin delivered adjusted EBITDA consistent with our expectations and restored normal operations at our vinyl chloride monomer (VCM) assets. Our Chlor Alkali Products and Vinyls business maintained disciplined market participation and stable domestic Electrochemical Unit values despite continued challenging global demand. Epoxy earnings improved as structural cost reductions and volume growth offset persistent demand weakness in Europe. Winchester delivered consistent year-over-year commercial volume growth through the third quarter, while pricing actions were implemented to offset higher metals and raw material costs.

“We also achieved two important milestones related to our proposed merger with Huntsman. Shareholders of both companies overwhelmingly approved the transaction, and the waiting period under the U.S. Hart-Scott-Rodino Act expired, satisfying a key closing condition. We continue to see good progress on the remaining regulatory approvals and now expect the transaction to close in first quarter 2027, subject to customary closing

conditions. We are advancing permitted pre-close integration planning to prepare for an expeditious combination and realization of expected synergies.

“Our fourth-quarter outlook reflects normal seasonality, as well as elevated year-end customer destocking in Chemicals, higher feedstock costs, continued pressure from subsidized Asian exports and significant planned maintenance turnarounds. We remain focused on our value-first commercial approach amid volatile export markets. Fourth quarter 2026 adjusted EBITDA is expected to be in the range of $80 million to $100 million. Our priorities remain operating safely and reliably, delivering Beyond250 structural cost savings and generating cash,” Lane concluded.

SEGMENT REPORTING

Olin defines segment earnings as income (loss) before interest expense, net, other operating income (expense), non-operating pension income, other income, and income taxes.

CHLOR ALKALI PRODUCTS AND VINYLS

Chlor Alkali Products and Vinyls sales for the third quarter 2026 were $850.8 million, compared to $924.0 million in the third quarter 2025. The decrease in sales was due to lower volumes, primarily resulting from lower trading volumes associated with Blue Water Alliance and lower VCM volumes, partially offset by higher pricing. The Blue Water Alliance joint venture concluded operations at the end of 2025. Third quarter 2026 segment earnings were $71.3 million, compared to $127.6 million in the third quarter 2025. Third quarter 2026 segment earnings included a $5.0 million pretax benefit compared to $32.0 million last year, primarily related to the clean hydrogen production tax credit under Section 45V as part of the Inflation Reduction Act of 2022. The remaining $29.3 million decrease in segment earnings was primarily due to previously announced operating issues with the VCM plant at our Freeport, Texas facility resulting in higher costs and reduced profit from lost sales ($32.1 million) partially offset by higher pricing, primarily caustic soda and ethylene dichloride. Chlor Alkali Products and Vinyls third quarter 2026 results included depreciation and amortization expense of $91.1 million compared to $109.0 million in the third quarter 2025.

EPOXY

Epoxy sales for the third quarter 2026 were $412.2 million, compared to $349.6 million in the third quarter 2025. The increase in sales was due to higher volumes and improved pricing. Third quarter 2026 segment earnings were $0.6 million, compared to a segment loss of ($32.2) million in the third quarter 2025. The $32.8 million increase in segment results was primarily due to higher volumes and low

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