Exhibit 99.1 Argan, Inc. Reports Second Quarter Fiscal 2026 Results Reports Record Backlog of $2.0 Billion September 4, 2025 – ARLINGTON, VA – Argan, Inc. (NYSE: AGX) ("Argan" or the "Company") today announces financial results for its second quarter of fiscal year 2026 ended July 31, 2025. The Company will host an investor conference call today, September 4, 2025, at 5:00 p.m. ET. Consolidated Financial Highlights ($ in thousands, except per share data) Second Quarter Results Consolidated revenues for the ...