Olin(OLN) - 2025 Q1 - Quarterly Results

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 First Quarter 2025 Results Highlights Clayton, MO, May 1, 2025 – Olin Corporation (NYSE: OLN) announced financial results for the first quarter ended March 31, 2025. First quarter 2025 reported net income was $1.4 million, or$0.01 per diluted share, which compares to first quarter 2024 reported net income of $48.6 million, or$0.40 p ...