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KEY PERFORMANCE ADVANTAGES Southern Yellow Pine1 Equivalent Wood Pole GridCore FRP Pole2 14 in x .750 in Length (ft) Load Class3 Allowable Class Load4 (kip) Weight (lb) Deflection5 (in) Weight (lb) Deflection5 (in) 40 3 1.95 1360 35 1040 12 2 2.41 1580 32 14 1 2.93 1810 30 18 H1 3.51 2050 28 21 H2 4.16 2310 26 25 45 3 1.95 1630 45 1170 17 2 2.41 1880 41 21 1 2.93 2160 38 26 H1 3.51 2450 36 31 H2 4.16 2760 33 37 50 3 1.95 1910 56 1300 24 2 2.41 2210 52 30 1 2.93 2530 48 36 H1 3.51 2880 45 44 H2 4.16 3240 42 52 55 3 1.95 2210 68 1430 33 2 2.41 2550 63 40 1 2.93 2930 58 49 H1 3.51 3320 54 59 H2 4.16 3740 51 70 60 3 1.95 2520 82 1560 43 2 2.41 2910 76 53 1 2.93 3340 70 65 H1 3.51 3790 65 78 H2 4.16 4270 61 92 65 3 1.95 2840 97 1690 56 2 2.41 3290 90 69 1 2.93 3770 83 84 H1 3.51 4280 77 100 H2 4.16 4820 72 119 70 3 1.95 3180 114 1820 71 2 2.41 3690 105 87 1 2.93 4220 97 106 H1 3.51 4790 90 127 H2 4.16 5390 85 150 POLE SELECTION GUIDE 1 Wood properties data are per ANSI O5.1-2022 Table 1. Allowable Class loads are based on NESC Table 261-1. GridCore FRP Pole Southern Yellow Pine Equivalent Wood Pole Nominal Fiber Stress, F (psi) 45,000 8,000 NESC constructiona Grade B Strength factor, ɸa 1.0 0.65 Modulus of Elasticity, Eb (106 psi) 5.00 2.13 Estimated Density (lb/ft3) 120 65 DESIGN PARAMETERS a Per NESC Table 261-1 b Wood data are per ANSI O5.1-2022 Table 1.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). Reduce Scope 1 & 2 greenhouse gas emissions by 35%. Operating Income $3,783 $4,100 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Previous Guidance Current Guidance $3,783 $4,300 $308 $360 $308 $410 $1.93 $2.40 $1.93 $2.80 (1) (1)(1) (1)(1) (1) $442 $457 $560 $1.74 $1.93 $2.80 FULL YEAR 2019 – 2021 ORGANIC GROWTH 23 Sales Adjusted EBITDA $3,981 $3,783 $4,300 + 8% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1)(1) + 27% + 61% 24 BALANCE SHEET • Deleveraging to 1.9x net debt to adjusted EBITDA by the end of 2021 • Driven by record adjusted EBITDA performance and strong free cash flow generation from asset light business • Future cash deployment: M&A, opportunistic share repurchases and balance sheet / continued leverage reduction 3.5x 2.7x 1.9x Net Debt / Adjusted EBITDA ($ in millions) 2021E Adjusted EBITDA 560$ Free Cash Flow 275$ Total Debt 1,860 Less: Cash (800) Net Debt 1,060$ 2021E Net Debt / Adjusted EBITDA 1.9x (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition PEER COMPARISONS 25 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from.

PP32075932-LDR 1% PP62076443-LDR 1% PP42075700-LDR 1%PP52076733-LDR 1 % PP62076444-LDR 1% PP52076664-LDR 2% PP52075745-LDR 0.5% PP32076405-LDR 1% PP42075706-LDR 1%PP6N075015-LDR 1% PP13075926-LDR 2% PP63076317-LDR 0.5% PP82076957-LDR 2% PP12075762-LDR 2% PP82077077-LDR 2%PP52076834-LDR 2% PP33076395-LDR 3% PP5N075037-LDR 2% PP53076820-LDR 3% PP84076978-LDR 4% PP54076838-LDR 4%PP34076341-LDR 3% PP63076492-LDR 3% PP43075702-LDR 2%

Microsoft PowerPoint - AVNT Q3 2021 Earnings Presentation - WEBSITE AVIENT CORPORATION T H I R D Q U A R T E R 2 0 2 1 R E S U LT S (NYSE: AVNT) O C T O B E R 2 8 , 2 0 2 1 DISCLAIMER Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). This innovation drives performance and is reflective of consistent, strategic investments in technology and people Clariant Color business acquired July 1, 2020 10 30 40 14 25 22 35 19 18 41 Current Additional share needed to reach 2025 target BRAND OWNERS COMMITTED TO INCREASING USE OF RECYCLED MATERIALS 8 Brand Owner 1 Brand Owner 3 Brand Owner 2 Brand Owner 7 Brand Owner 4 Brand Owner 10 Brand Owner 6 Brand Owner 11 Brand Owner 5 Brand Owner 8 Brand Owner 9 Brand Owner 12 Brand Owner 13 Percent recycled plastic used: (examples and not exhaustive) (1) Latest year reported.

Enter the owner's name on line 1. Form W-9 (Rev. 10-2018) Page 5 1. You can reach TAS by calling the TAS toll-free case intake line at 1-877-777-4778 or TTY/TDD 1-800-829-4059.

titel 20 21 -1 2- 27 1 1: 24 :4 8 Business Register extract Netherlands Chamber of Commerce CCI number 72287497 Page 1 (of 2) Legal entity RSIN 859060317 Legal form Foreign Legal Entity: Société à Responsabilité Limitée (S.A.R.L.) The Chamber of Commerce recommends that this document be viewed in digital form so that its integrity is safeguarded and the signature remains verifiable. 20 21 -1 2- 27 1 1: 24 :4 8 Name Potoczny, Zaneta Gabriela Date of birth 17-10-1974 Date of entry into office 27-02-2019 (registration date: 12-08-2019) Name Merklein, Norbert Date of birth 03-05-1964 Date of entry into office 18-01-2021 (registration date: 29-10-2021) Authorised representative Name Van den Brande, Philip Theophiel Anna Date of birth 13-08-1974 Date of entry into office 24-07-2018 Title Branch Manager Contents of power of attorney There are other restrictions.

Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). This innovation drives performance and is reflective of consistent, strategic investments in technology and people Clariant Color business acquired July 1, 2020 10 30 40 14 22 35 19 18 41 Current Additional share needed to reach 2025 target BRAND OWNERS COMMITTED TO INCREASING USE OF RECYCLED MATERIALS 14 Brand Owner 1 Brand Owner 3 Brand Owner 2 Brand Owner 7 Brand Owner 4 Brand Owner 10 Brand Owner 6 Brand Owner 11 Brand Owner 5 Brand Owner 8 Brand Owner 9 Brand Owner 12 Brand Owner 13 Percent recycled plastic used: (examples and not exhaustive) (1) Latest year reported. Sustainable Development Goals • Emphasized climate change commitment o Announced 2050 operational carbon neutrality and RE100 commitment o Alignment to Science Based Targets Reduce Scope 1 & 2 greenhouse gas emissions by 60%.

Polyamides represent the highest polarity in Figure 1. REFERENCES 1. No Nylon Type Nylon description TPE Hardness Aging condition Peel, N/mm / lb / in 1 Capron 8333GHI Glass and impact 60A(1) Aging A 3.7 / 21 2 Capron 8333GHI Glass and impact 60A(1) Aging B 3.2 / 20 3 Capron 8333GHI Glass and impact 60A(1) Aging C 3.3 / 19 4 Capron 8333GHIHS Glass, impact and heat stabilized 60A(1) Aging A 3.2 / 20 5 Capron 8333GHIHS Glass, impact and heat stabilized 75A Aging A 3.0 / 17 6 Ultramid B3ZG6 Glass and impact 60A(1) Aging A 3.2 / 18 7 Zytel 70G33L Glass 60A(1) Aging A 3.9 / 22 8 Zytel 408AHS Heat stabilized and flow aid 60A(1) Aging A 3.7 / 21 9 Zytel 409AHS Heat stabilized and flow aid 60A(1) Aging A 3.2 / 20 Aging A: nylon substrate conditioned at room temperature and humidity for 4 weeks before TPE overmolding.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). Clariant MB acquired July 1, 2020 COLORWORKS INSPIRATION. Operating Income $3,783 $4,300 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Previous Guidance Current Guidance $3,783 $4,650 $308 $410 $308 $430 $1.93 $2.80 $1.93 $3.00 (1) (1)(1) (1)(1) (1) $442 $457 $580 $1.74 $1.93 $3.00 FULL YEAR 2019 – 2021 ORGANIC GROWTH 22 Sales Adjusted EBITDA $3,981 $3,783 $4,650 + 17% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1)(1) + 31% + 72% ($ in millions) 2021E Adjusted EBITDA 580$ Free Cash Flow 280$ Total Debt 1,860 Less: Cash (755) Net Debt 1,105$ 2021E Net Debt / Adjusted EBITDA 1.9x 23 BALANCE SHEET • Acquisition of Magna Colours completed on July 1 – expands sustainable solutions portfolio through water-based inks technology • Deleveraging to 1.9x net debt to adjusted EBITDA by the end of 2021 • Driven by record adjusted EBITDA performance and strong free cash flow generation from asset light business • Future cash deployment: M&A, opportunistic share repurchases and balance sheet / continued leverage reduction 3.5x 2.7x 1.9x Net Debt / Adjusted EBITDA (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition SUSTAINABILITY FOR A BETTER TOMORROW • Revenue from sustainable solutions expected to grow 14% in 2021 as our innovation efforts and collaboration with customers continues to accelerate • Investments centered around innovation and global sustainability megatrends o Enabling a circular economy – Technologies that allow for increased use of post-consumer recycled (PCR) material and improve recyclability of plastics o Light-weighting – Composites and CAI applications to reduce weight and material requirements, which minimize energy and carbon emissions o Eco-Conscious – Health and human safety applications as well as Avient’s alternative materials to replace lead, PVC, halogens, BPA and other less eco-friendly options 2016 2017 2018 2019 2020PF** Bio-polymers Reduced Energy Use Human Health & Safety Sustainable Infrastructure VOC Reduction Recycle Solutions Eco-Conscious Lightweighting Revenue From Sustainable Solutions* 2016-2020 $405M $455M *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Masterbatch business $340M $550M $790M 25 Key Updates • Includes Clariant Masterbatch performance • Increases disclosures and ESG data • Provides performance updates on 2030 Sustainability Goals • Commits to operational carbon neutrality in 2050 and 100% renewable energy by 2050 (RE 100) • Announces Avient’s participation in U.N.