Slide 1: Second Quarter 2026 Financial Results
1 Trademark of Trinseo PLC or its affiliates Second Quarter 2026 Financial Results August 6, 2026
Slide 2: Disclosure Rules
2 Disclosure Rules This presentation may contain forward-looking statements including, without limitation, statements concerning plans, objectives, goals, projections, forecasts, strategies, future events or performance, and underlying assumptions and other statements, which are not statements of hi
Slide 3: Summary
3 Summary Q2 2026 Results • Net loss of $120 million and EPS of negative $3.27 included $89 million of pre-tax charges, primarily related to $85 million of reorganization items and other debt restructuring costs plus asset restructuring programs. • Adjusted EBITDA* of $81 million was $39 million abo
Slide 4: Sustainability Highlights FY2025
4 Sustainability Highlights FY2025 • 7 Sustainability Goals enhanced related to climate change, supplier responsibility and responsible operations • 2 collaborations for circular solution advancement • Reduced 73% total greenhouse gas emissions (2017 base year; 18% reduction compared to FY2024) • 64
Slide 5: Q2 2026 Sales and Volume Summary
5 Q2 2026 Sales and Volume Summary Q2 Net sales in $millions Q2 Volume variances exclude styrene-related sales Second Quarter Volume Drivers: Europe • Lower volumes in polystyrene, primarily from Tessenderlo’s force majeure that resulted from damage to operating components of the plant caused by a s
Slide 6: Trinseo Q2 2026 Financial Results
6 Vol Price FX Total (5%) 11% 2% 8% $845 ($120) $784 ($106) Net Sales Net Loss Net Sales & Net Loss ($MM) Q2'26 Q2'25 Trinseo Q2 2026 Financial Results Net Sales • Versus prior year: Adjusted EBITDA* of $81 million was $39 million above prior year primarily due to margin improvements in Polymer Solu
Slide 7: Engineered Materials
7 Engineered Materials • Versus prior year: Adjusted EBITDA was $12 million higher, due to global margin expansion from strategic product mix improvements with lower MMA and higher PMMA resin volumes, plus lower fixed costs driven by savings from the closure of our virgin MMA production facilities i
Slide 8: Latex Binders
8 • Versus prior year: Adjusted EBITDA was $1 million below prior year primarily due to unfavorable net timing, partially offset by higher volumes • Versus prior quarter: Adjusted EBITDA was flat sequentially, as volume and margin improvements, primarily in paper & board, were offset by negative net
Slide 9: Polymer Solutions
9 Polymer Solutions • Versus prior year: Adjusted EBITDA of $43 million was $38 million above prior year primarily due to margin improvement from raw material volatility and commercial initiatives. Higher margins were partially offset by reduced volumes in polystyrene due to Tessenderlo’s force maje
Slide 10: Liquidity (Q2 2026)
10 Liquidity (Q2 2026) Cash and Borrowing Facilities ($ millions) AR Securitization $181 $5 $0 Cash $187MM Combined Cash and Availability under Committed Facilities Liquidity Details: • As of June 30, 2026, the Revolving Credit Facility is included within liabilities subject to compromise, along wit
Slide 11: Debt Restructuring Overview
11 Debt Restructuring Overview * Assumes post-petition revolving credit facility undrawn ~$2 Billion Debt Reduction ~$140 Million Annual Cash Interest Reduction Chapter 11 Emergence anticipated before year end No Business Interruptions or Concessions $2.8 $1.0 Pre-Petition Post-Emergence* $240 $100
Slide 12: Appendix
12 Appendix
Slide 13: Segment Information
13 Segment Information (in $millions, unless noted) Q1'24 Q2'24 Q3'24 Q4'24 Q1'25 Q2'25 Q3'25 Q4'25 Q1'26 Q2'26 2024 2025 Engineered Materials 78 88 74 71 72 76 70 63 72 70 310 282 Latex Binders 119 111 106 97 98 92 97 93 98 102 434 380 Polymer Solutions 204 174 167 172 174 165 166 161 162 136 718 6
Slide 14: US GAAP to Non-GAAP Reconciliation
14 US GAAP to Non-GAAP Reconciliation NOTE: For definitions of non-GAAP measures as well as descriptions of current period reconciling items from Net Income (Loss) to Adjusted EBITDA and to Adjusted Net Income (Loss), refer to the accompanying press release furnished as Exhibit 99.1 to our Form 8-K