Slides
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November 4, 2026 3Q 2026 Earnings Presentation
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2 © 2026 AdvanSix Inc. All Rights Reserved. Forward Looking Statements This presentation contains certain statements that may be deemed “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. All statements, other than statements of historical fact, that address activities, events or developments that our management intends, expects, projects, believes or anticipates will or may occur in the future are forward-looking statements. Forward-looking statements may be identified by words such as "expect," "anticipate," "estimate," “outlook,” "project," "strategy," "intend," "plan," "target," "goal," "may," "will," "should" and "believe" and other variations or similar terminology and expressions. Although we believe forward-looking statements are based upon reasonable assumptions, such statements involve known and unknown risks, uncertainties and other factors, many of which are beyond our control and difficult to predict, which may cause the actual results or performance of the Company to be materially different from any future results or performance expressed or implied by such forward-looking statements. Such risks and uncertainties include, but are not limited to: general economic and financial conditions in the U.S. and globally; the potential effects of inflationary pressures, tariffs or the imposition of new tariffs, trade wars, barriers or restrictions, or threats of such actions, changes in interest rates, labor market shortages and supply chain issues; instability or volatility in financial markets or other unfavorable economic or business conditions caused by geopolitical concerns, including as a result of new or proposed legislation or regulatory, trade or other policies in or impacting the U.S., the conflict between Russia and Ukraine, the conflicts in the Middle East, as well as any related uncertainty in the surrounding region, and the possible expansion of such conflicts; the effect of any of the foregoing on our customers’ demand for our products and our suppliers’ ability to manufacture and deliver our raw materials, including implications of reduced refinery utilization in the U.S.; our ability to sell and provide our goods and services; the ability of our customers to pay for our products; any closures of our and our customers’ offices and facilities; risks associated with increased phishing, compromised business emails and other cybersecurity attacks, data privacy incidents and disruptions to our technology infrastructure; risks associated with potential use of artificial intelligence in our operations or those of third party service providers; risks associated with operating with a reduced workforce; risks associated with our indebtedness including compliance with financial and restrictive covenants, and our ability to access capital on reasonable terms, at a reasonable cost, or at all, due to economic conditions or otherwise; the impact of scheduled turnarounds and significant unplanned downtime and interruptions of production or logistics operations as a result of mechanical issues or other unanticipated events such as fires, severe weather conditions, natural disasters, pandemics, geopolitical conflicts and related events; price fluctuations, cost increases and supply of raw materials; our operations and growth projects requiring substantial capital; growth rates and cyclicality of the industries we serve including global changes in supply and demand; failure to develop and commercialize new products or technologies; loss of significant customer relationships; adverse trade and tax policies; extensive environmental, health and safety laws that apply to our operations; hazards associated with chemical manufacturing, storage and transportation; litigation associated with chemical manufacturing and our business operations generally; inability to acquire and integrate businesses, assets, products or technologies; protection of our intellectual property and proprietary information; prolonged work stoppages as a result of labor difficulties or otherwise; failure to maintain effective internal controls; our ability to declare and pay quarterly cash dividends and the amounts and timing of any future dividends; our ability to repurchase our common stock and the amount and timing of any future repurchases; disruptions in supply chain, transportation and logistics; potential for uncertainty regarding qualification for tax treatment of our spin- off; fluctuations in our stock price; and changes in laws or regulations applicable to our business. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this presentation. Such forward-looking statements are not guarantees of future performance, and actual results, developments and business decisions may differ materially from those contemplated by such forward-looking statements as a result of a number of risks, uncertainties and other factors including those noted above and those identified in our filings with the Securities and Exchange Commission (SEC), including the risk factors in Part 1, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2025, as updated in subsequent reports filed with the SEC. All subsequent written or oral forward-looking statements attributable to us or persons acting on our behalf are qualified in their entirety by this paragraph. We do not undertake to update or revise any of our forward-looking statements. Non-GAAP Financial Measures This presentation includes certain non-GAAP financial measures intended to supplement, not to act as substitutes for, comparable GAAP measures. Reconciliations of non-GAAP financial measures to GAAP financial measures are provided in this presentation, except with respect to forward-looking non-GAAP measures, where such reconciliation is not available without unreasonable effort as the Company is unable to predict with reasonable certainty the occurrence or amount of all adjustments or other potential adjustments that may arise, which can be dependent on future events. Investors are urged to consider carefully the comparable GAAP measures and the reconciliations to those measures provided. Non-GAAP measures in this presentation may be calculated in a way that is not comparable to similarly-titled measures reported by other companies.
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3 © 2026 AdvanSix Inc. All Rights Reserved. AdvanSix Strategic Priorities Controllable Levers Anchor Through-Cycle Value Creation to Support Total Shareholder Return Commercial Execution Disciplined Capital Deployment ➢ Winning with customers to profitably fill our plants ➢ Product mix shift to higher value applications in attractive markets ➢ Actions and pricing mechanisms to recover raw material cost inflation ➢ Generating meaningful operating cash flow ➢ Asset optimization and platform integration for evolving value chain dynamics ➢ Discretionary capital investments targeting 20%+ IRR hurdle rates • Strong cash conversion cycle performance • SUSTAIN program generating 30%+ IRR • Progressing DEF growth project • Project CENTURY selected for FIELDS grant • 45Q carbon capture tax credits • 3Q26 price nearly offset increasing raws YoY • Maintaining margin expansion across Nylon Solutions and Chemical Intermediates • Expect continued strong domestic granular ammonium sulfate volume performance for the 2026/2027 fertilizer year Operational Excellence ➢ Risk-based prioritization of Capex supports safe, stable, and sustainable operations while optimizing cash generation ➢ Continuous improvement is a productivity engine for agility and efficiency • Turnaround scoping and prioritized Capex supports improvement in earnings and cash conversion through the cycle • On track for year 1 non-manpower fixed cost reduction target
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4 © 2026 AdvanSix Inc. All Rights Reserved. $25 $32 $15 3Q25 2Q26 3Q26 $0.08 $0.19 ($0.24) 3Q25 2Q26 3Q26 ($0.32) Free Cash FlowAdjusted EPS 3Q 2026 Financial Summary See Appendix in this presentation for a reconciliation of Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted EPS and Free Cash Flow, which are non-GAAP measures $374 $421 $431 3Q25 2Q26 3Q26 +15% ($10M) Adjusted EBITDASales Adjusted EBITDA Margin 6.6% 7.6% 3.4% GAAP Net Income ($2.6) $3.2 GAAP EPS ($0.10) $0.12 ($7.6) ($0.28) Highlights • Sales YoY: Price +17%, Volume (2%) – Raw Material Pass Through Pricing +10% – Market-Based Pricing +7% • Higher pricing across each product line nearly offsets input cost increases • Lower production output at Hopewell and Frankford sites • Executing cost savings initiatives supporting lower SG&A expense • 3Q26 effective tax rate of 32.1% vs. 3Q25 effective tax rate of 25.6% – YTD26 effective tax rate of 21.1% vs. YTD25 effective tax rate of 8.7% – YTD25 tax rate reduced by 45Q carbon capture tax credits claimed • 3Q26 Cash Flow From Operations of $48M, up $21M vs. prior year primarily due to favorable changes in working capital • 3Q26 Capex of $18M, down ($8M) vs. prior year, as planned ($M, except per share amounts) $0 ($11) $30 3Q25 2Q26 3Q26 +$30M
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5 © 2026 AdvanSix Inc. All Rights Reserved. 139 131 149 3Q25 2Q26 3Q26 Plant Nutrients 3Q 2026 Sales By Product Line Sales Product Price +17% Volume (2%) Nylon CPL PN CI YoY Sales +15% QoQ Sales +2% Price (9%) Volume +11% • Year-over-year pricing improvement across the portfolio supported by higher raw material pass-through as well as an increase in market-based pricing • North American ammonium sulfate fill program driving seasonal sequential domestic pricing decline while volumes improved following reduced in-season purchases in 2Q26 • Increased nylon resin volumes driven by continued improved operational performance ($M) +8% YoY Raw Materials Pass Through +10%, Market-Based +7% QoQ Raw Materials Pass Through (4%); Market-Based (5%) 84 127 104 3Q25 2Q26 3Q26 Chemical Intermediates +24% 79 100 105 3Q25 2Q26 3Q26 Nylon +33% 73 63 73 3Q25 2Q26 3Q26 Caprolactam ~Flat % Formula / Index ~40% ~85% ~0% ~60%
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6 © 2026 AdvanSix Inc. All Rights Reserved. $25 $15 $61 ($65) ($1) $3 ($8) 3Q25 Price Raws Volume SG&A Other 3Q26 • Sulfur: ($32) • Benzene: ($30) • Propylene: ($5) • Nat Gas: $2 3Q 2026 Adjusted EBITDA Bridge Rising Raw Material Costs Nearly Offset by Higher Pricing; Lower Production Volume Impacting Earnings ($M) See Appendix in this presentation for a reconciliation of Adjusted EBITDA, which is a non-GAAP measure $26 • Higher raw material pass-through pricing in Nylon Solutions and Chemical Intermediates; Favorable market-based pricing across portfolio • Higher sulfur, benzene and propylene costs; Natural gas modestly lower • Reduced production output drove unfavorable fixed cost absorption • Disciplined cost savings including non-manpower fixed cost initiative driving lower SG&A expense Business Drivers • Nylon Solutions: $38 • Chemical Intermediates: $12 • Plant Nutrients: $11
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7 © 2026 AdvanSix Inc. All Rights Reserved. 3Q25 YTD 3Q26 YTD Net Income $52 ($20) Depreciation & Amortization $59 $63 Total Working Capital* ($56) $24 Taxes / Other $4 ($24) Net Cash From Operations $59 $43 Base Capex ($76) ($64) Growth & Cost Savings Capex ($13) ($11) Total Capex ($89) ($75) Free Cash Flow ($30) ($32) Insurance Proceeds $26 -- Free Cash Flow excluding Insurance Proceeds ($56) ($32) Cash Flow Summary Reduced Capex Run-Rate, Seasonal Working Capital Benefits in 2H 2026 ($M) Free Cash Flow and Free Cash Flow, excluding Insurance Proceeds, are non-GAAP measures. See Appendix for definitions and additional information regarding non-GAAP financial measures. • Drove meaningful working capital performance supporting improvement in cash conversion cycle • Disciplined inventory optimization aligned to end market dynamics • Expect working capital tailwinds to continue into 4Q26 driven by ammonium sulfate pre-buy cash advances amid elevated fertilizer pricing • Expect Capex of ~$90M for full year 2026, reflecting reduced run- rate and risk-based prioritization of base investments; Commissioning synthetic ammonium sulfate project of SUSTAIN growth program • New 5-year credit facility provides ample liquidity and supports capital deployment optionality Cash Flow Generation * Working Capital includes Accounts and other receivables, Inventories, Accounts payable, and Deferred income and customer advances
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8 © 2026 AdvanSix Inc. All Rights Reserved. Outlook Considerations Monitoring Key Macro and Industry Dynamics While Progressing Strategic Growth Priorities • Continued lower global phenol operating rates • Balanced supply and demand supporting cycle-average acetone over propylene spreads • Growth in high-value applications across paints and coatings, electronics and ag chemicals end markets What We’re Monitoring and Expecting Into 1H 2027 • Farmer economics and crop prices trending more favorable • Benefit from sulfur input cost normalization • Tighter ammonium sulfate supply and improved demand • Building and construction cycle, primarily commercial, and interest rate environment • Stable automotive and other consumer durables demand • Global caprolactam and nylon capacity rationalization supporting improved supply / demand fundamentals NYLON SOLUTIONS PLANT NUTRIENTS CHEMICAL INTERMEDIATES ENTERPRISE EXECUTION • Progressing non-manpower fixed cost savings initiative • Anticipate final investment decision for DEF growth project in 2Q 2027 • Project Century selected for FIELDS grant which provides funding support for ammonia platform investment • Receipt and subsequent claims for 45Q carbon capture tax credits
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9 © 2026 AdvanSix Inc. All Rights Reserved. Project CENTURY Selected for USDA FIELDS Grant Expanding Domestic Ammonia Production to Support American Farmers and Strengthen U.S. Supply Chains ~$47M Proposed USDA FIELDS funding ~$98M Planned multi-year capital investment ~84K Tons of annual ammonia capacity to be added Nearly dollar-for-dollar grant match supports attractive financial returns and long-term value creation Project CENTURY advances four strategic outcomes 1 Expand Capacity Increase peak ammonia production capacity 2 Improve Reliability Increase uptime and avoid production losses 3 Enhance Logistics Expand onsite infrastructure for direct ammonia sales 4 Modernize Operations Upgrade controls and digital optimization tools • One of eight projects selected to move forward through the FIELDS funding process • Planned multi-year investment (2027-2031) to modernize and expand ammonia manufacturing at our Hopewell, Virginia facility • Increases optionality and strengthens AdvanSix’s integrated ammonia platform while increasing nitrogen nutrition availability for U.S. farmers • IRR expected to exceed 20% target hurdle rate Grant funding is subject to successful completion of USDA administrative and risk reviews Capacity Expansion for Nitrogen Technology, U.S. Resilience & Yield (CENTURY)
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10 © 2026 AdvanSix Inc. All Rights Reserved. Summary Compelling Investment Thesis Over Near and Long-Term ✓ 3Q26 results reflect strong commercial execution and the resilience of our integrated business model as we navigate significant input cost inflation and a dynamic market environment ✓ Taking decisive actions to enhance cash generation, improve our cost position, and optimize our portfolio while continuing to invest in attractive growth opportunities ✓ Confident in the underlying strength of AdvanSix and well positioned to deliver sustainable long-term shareholder value
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APPENDIX
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12 © 2026 AdvanSix Inc. All Rights Reserved. Key Performance Indicators / Industry Metrics KPIs / Industry Metrics 3Q25 2Q26 3Q26 4Q26E Input Costs U.S. Benzene ($/MT) ~$800 ~$1,300 ~$1,400 $1,450-$1,500 U.S. Polymer Grade Propylene (c/lb) ~$0.36 ~$0.52 ~$0.45 $0.42-$0.45 Tampa Sulfur ($/LT) $252 $655 $705 $615 NYMEX Natural Gas ($/MMBtu) $3.07 $2.90 $2.95 $2.95(1) Pricing & Spreads AS Corn Belt Price ($/ST) ~$370 ~$475 ~$375 $400-$425(2) NA Resin – BNZ ($/MT) ~$1,300 ~$1,500 ~$1,500 $1,475-$1,525 Asia CPL – BNZ ($/MT) ~$560 ~$900 ~$875 $750-$775 Acetone – Small/Medium Buyer (c/lb) ~$0.55 ~$0.80 ~$0.62 $0.58-$0.61 Acetone – Large Buyer (c/lb) ~$0.47 ~$0.65 ~$0.57 $0.56-$0.59 Source: Green Markets, A Bloomberg Company, Tecnon Orbichem, Wood Mackenzie, and Chemical Market Analytics (1) Pricing as of 10/29/26 (2) QTD average pricing as of 10/29/26 • Working actions and pricing mechanisms to recover inflationary raw material cost pressures • Benzene and propylene prices influenced by underlying crude oil • Expect continued moderation of sulfur quarterly price settlements into 2027 • Natural gas prices remain relatively flat
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13 © 2026 AdvanSix Inc. All Rights Reserved. Planned Plant Turnarounds 1Q 2Q 3Q 4Q FY Primary Unit Operation 2017 -- ~$10M ~$4M ~$20M ~$34M Sulfuric Acid 2018 ~$2M ~$10M ~$30M -- ~$42M Ammonia 2019 -- ~$5M ~$5M ~$25M ~$35M Sulfuric Acid 2020 ~$2M ~$7M ~$20M ~$2M ~$31M Ammonia 2021 ~$3M ~$8M -- ~$18M ~$29M Sulfuric Acid 2022 ~$1M ~$5M ~$44M(2) -- ~$50M Ammonia 2023 ~$2M ~$1M ~$27M -- ~$30M Sulfuric Acid 2024 ~$5M ~$3M ~$3M ~$47M(3) ~$58M Ammonia 2025 ~$5M ~$6M -- ~$14M ~$25M Sulfuric Acid 2026E -- ~$10M -- ~$7M ~$17M Ammonia • Timing driven by compliance, inspection and sustaining asset base • Critical to supporting high utilization rates • Dedicated teams to improve effectiveness • Staggered across unit operations to maintain output • Proactive maintenance capex prioritized to mitigate risk and support safe, stable and sustainable operations (1) Primarily reflects the impact of fixed cost absorption, maintenance expense, and the purchase of feedstocks which are normally manufactured by the Company. (2) During the multi-site planned plant turnaround, additional required maintenance at our Frankford phenol plant contributed to reduced production across our integrated value chain and a delayed ramp to full operating rates at our Hopewell and Chesterfield sites, resulting in an incremental $15M unfavorable impact to pre-tax income, which is reflected in this amount and is inclusive of fixed cost absorption, higher maintenance expense and lost sales. (3) During the multi-site planned plant turnaround, additional required maintenance at our Hopewell plant contributed to reduced production across our integrated value chain and a delayed ramp to full operating rates, resulting in an incremental ~$17M unfavorable impact to pre-tax income, which is reflected in this amount and is inclusive of fixed cost absorption, higher maintenance expense, and lost sales. Pre-Tax Income Impact by Quarter (1)
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Reconciliation of Non-GAAP Measures to GAAP Measures
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15 © 2026 AdvanSix Inc. All Rights Reserved. Reconciliation of Net Cash Provided by Operating Activities to Free Cash Flow (in $ thousands) Free cash flow excluding Insurance Proceeds is defined as Net cash provided by operating activities less Expenditures for property, plant and equipment and insurance proceeds The Company believes that these metrics are useful to investors and management as measures to evaluate our ability to generate cash flow from business operations and the impact that this cash flow has on our liquidity. The Company believes the non-GAAP financial measures included in this presentation provide meaningful supplemental information as they are used by the Company’s management to evaluate the Company’s operating performance, enhance a reader’s understanding of the financial performance of the Company, and facilitate a better comparison among fiscal periods and performance relative to its competitors, as these non-GAAP measures exclude items that are not considered core to the Company’s operations. (1) Free cash flow is a non-GAAP measure defined as Net cash provided by operating activities less Expenditures for property, plant and equipment.
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16 © 2026 AdvanSix Inc. All Rights Reserved. Reconciliation of Net Income to Adjusted EBITDA (in $ thousands) The Company believes the non-GAAP financial measures included in this presentation provide meaningful supplemental information as they are used by the Company’s management to evaluate the Company’s operating performance, enhance a reader’s understanding of the financial performance of the Company, and facilitate a better comparison among fiscal periods and performance relative to its competitors, as these non-GAAP measures exclude items that are not considered core to the Company’s operations. (2) Legal and professional fees associated with strategic regulatory matters and potential inorganic growth options, including costs associated with a transaction the Company is no longer pursuing (3) Adjusted EBITDA margin is defined as Adjusted EBITDA divided by Sales
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17 © 2026 AdvanSix Inc. All Rights Reserved. Reconciliation of Earnings Per Share to Adjusted Earnings Per Share The Company believes the non-GAAP financial measures included in this presentation provide meaningful supplemental information as they are used by the Company’s management to evaluate the Company’s operating performance, enhance a reader’s understanding of the financial performance of the Company, and facilitate a better comparison among fiscal periods and performance relative to its competitors, as these non-GAAP measures exclude items that are not considered core to the Company’s operations. (in $ thousands except share and per share amounts)