AdvanSix Sees Higher Q3 Ammonium Sulfate Pricing, Plans $135M–$145M CapEx In 2025, Expects Lower Turnaround Costs As Nylon Challenges Continue

Outlook

• Anticipate higher ammonium sulfate pricing in 3Q25 year-over-year reflecting strong fall fill program; however, typical North American ammonium sulfate seasonality expected to drive 3Q25 sequential domestic pricing decline
• Acetone spread over refinery grade propylene costs anticipated to be lower year-over-year, but expected to remain near cycle averages
• Navigating an extended downturn in the nylon cycle - focused on controllable levers to optimize performance
• Expect Capital Expenditures of $135 to $145 million in 2025, reflecting the planned progression of our SUSTAIN growth program, and refined execution timing to address critical enterprise risk mitigation
• Continue to expect pre-tax income impact of plant turnarounds to be $25 to $30 million in 2025 versus approximately $58 million in 2024