Exhibit 99.1 Ryerson Reports Second Quarter 2025 Results Operationalization of significant capex projects continued to progress as we gained market share, continued to grow our transactional business, and achieved Adjusted EBITDA, excl. LIFO at the top of our guidance range. CHICAGO – July 29, 2025 – Ryerson Holding Corporation (NYSE: RYI), a leading value-added processor and distributor of industrial metals, today reported results for the second quarter ended June 30, 2025. Highlights: Second Quarter Resul ...