Late payments will bear interest at 1.5% per month if the invoice is stated in U.S. dollars, or at the active interest rate for 30-day obligations published by the Banco de la Nación Argentina, if the invoice is stated in Argentine pesos, until the actual date of payment. Any times or dates for delivery communicated by Seller (including those contained in Seller’s order confirmation) are estimates only and are not terms of the sale. Unless Seller and Buyer have expressly agreed to a firm delivery date term in a single writing signed by both parties, delay in delivery of any Products shall not relieve Buyer of its obligation to accept delivery thereof.

If Buyer has a dispute with respect to an invoice, Buyer must notify Seller within seven (7) business days after the date of in- voice. Any times or dates for delivery com- municated by Seller (including those contained in Seller’s order confirmation) are estimates only and are not terms of the sale. Unless Seller and Buyer have expressly agreed to a firm de- livery date term in a single writing signed by both parties, delay in delivery of any Products shall not relieve Buyer of its obligation to accept delivery thereof.

Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of Clariant Color for periods prior to the Acquisition Date. Post-consumer recycled content as percentage of total plastic packaging volume, by weight ENABLING THE USE OF RECYCLED CONTENT T O P 5 G A P S T H A T W E A R E A D D R E S S I N G 2) DECONTAMINATION1) COLOR MANAGEMENT 3) MAINTAINING MECHANICAL PROPERTIES 4) MONO-MATERIAL CONSTRUCTION 5) CONSISTENT RECYCLED MATERIAL QUALITY G U I D I N G B R A N D S T O W H A T I S P O S S I B L E CASE STUDY WITH BRAND OWNER Recycled ResinVirgin Resin 10 SUSTAINABILITY FOR A BETTER TOMORROW 11 • Revenue from sustainable solutions expected to grow 18% 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 1111 *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 Color business 2016 2017 2018 2019 2020PF** 2021E $405M $455M $340M $550M $790M Revenue From Sustainable Solutions* 2016-2021 $930M Q3 2020 $925 $74 Sustainable Solutions 35 19% 14 Healthcare 51 44% 10 Composites 13 39% 6 Growth in Asia / LATAM 14 11% 3 Other 177 39% 16 Sub-total $1,215 31% $123 Supply Chain Disruption Costs (19) COVID Response Applications (5) (3) FX Impact 10 2 Synergies 12 Incentives, Travel, Other Employee Costs (16) Q3 2021 $1,220 32% $99 Q3 2021 SALES AND OPERATING INCOME 12 Sales Growth Rate Operating Income$ millions Q3 2020 Q3 2021 (1) Financial information is presented on a constant currency basis (44% of total revenue) (56% of total revenue) Q3 END MARKET SALES PERFORMANCE +20% +31% +40% +24% +46% +40% +14% +33% Energy Telecom Building & Transportation Industrial Healthcare Packaging Consumer Q3 YEAR-OVER-YEAR EBITDA BRIDGE 14 • Demand driven by growth in sustainable solutions, healthcare and consumer applications • Price increases more than offsets raw material and supply chain impacts • Synergy capture on pace to achieve $50M in annual savings in 2021 Q3 2020 $ 111 Demand 29 EBITDA$ millions CAI: Price / Mix 51 Inflation (37) SEM: Price / Mix 25 Inflation (22) Distribution: Price / Mix 108 Inflation (103) Net Price Benefit 22 Supply Chain Disruption Costs (19) COVID Response Applications (3) Synergies 12 Incentives, FX, Other (16) Q3 2021 $ 136 15 • Price increases have more than covered raw material and freight inflation impacts of $300M year- to-date compared to 2020 • Demand impact driven by Q3 seasonality for the business Q2 TO Q3 SEQUENTIAL EBITDA BRIDGE Q2 2021 $ 159 CAI: Price / Mix 17 Inflation (8) SEM: Price / Mix 6 Inflation (5) Distribution: Price / Mix 35 Inflation (35) Net Price Benefit 10 Supply Chain Disruption Costs (4) Demand / Seasonality (35) Other 6 Q3 2021 $ 136 EBITDA$ millions FU LL Y EA R 2021 O U T LO O K $308 $430 $1.93 $3.00 FULL YEAR GROWTH PROJECTIONS 17 Sales Adjusted Operating Income $3,783 $4,750 + 26% + 40% + 55% (1) Financial information is pro forma to include a full year of Clariant Color acquisition (1)(1)(1) $1.74 $1.93 $3.00 $442 $457 $580 FULL YEAR 2019 – 2021 GROWTH 18 Sales Adjusted EBITDA $3,981 $3,783 $4,750 + 19% (1) Financial information is pro forma to include a full year of Clariant Color acquisition (1) (1) (1)(1) + 31% + 72% (1) (1) 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 1.0 11 12 13 14 15 16 17 18 19 20 21 40% 99% YTD 5 - YR 10 - YR 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 0.95 11 12 13 14 15 16 17 18 19 20 21 22 2.1x Q4 NET LEVERAGE ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$450MM PAID OVER LAST 11 YEARS CREATING VALUE FOR SHAREHOLDERS 19 Share Performance Dividends Share Repurchases Deleveraging 3.5x 2.1x 2019PF 2021E Growing Dividend Cumulative Buybacks Net Leverage $B n $ p r sh ar Total Shareholder Return ~$4Bn MARKET CAP INCREASE OVER LAST 10 YEARS (1) Share performance includes reinvested dividends and is as of 10.25.2021 (2) Financial information is pro forma to include a full year of Clariant Color acquisition (2) 494% 2021 AVIENT INVESTOR DAY 20 • Investor Day to be held December 9, 2021 in New York, NY • The company will be doing a deep dive into its key long- term growth drivers with a particular focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team will also provide further details on the Clariant Color integration, as well as capital allocation priorities PEER COMPARISONS 21 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from.

PAYMENTS Unless otherwise directed or agreed to by Seller, all invoices are payable thirty (30) days after the date of invoice. DELIVERIES Delivery dates as stated in the offer are for indication only and Seller is entitled to make partial deliveries, unless the parties expressly agree otherwise. Seller shall make its best efforts to cause the Products to be delivered on such dates.

FACILITY1_LINE4: FACILITY1_LINE5: FACILITY1_LINE6: STANDARD: ISO 13485:2016 MANAGEMENT_TYPE2: The Quality Management System is applicable to: DATE_LABEL_1TF: DATE_VALUE_1TF: DATE_LABEL_2TF: DATE_VALUE_2TF: DATE_LABEL_3TF: Certificate No: DATE_VALUE_3TF: 54139 DATE_LABEL_4TF: Certification Date: DATE_VALUE_4TF: 04 September 2019 DATE_LABEL_5TF: Effective Date: DATE_VALUE_5TF: 01 September 2016 DATE_LABEL_6TF: Expiration Date: DATE_VALUE_6TF: 01 September 2022 DATE_LABEL_7TF: Revision Date: DATE_VALUE_7TF: 04 September 2019 MARK_3: MARK_2: SIGNATURE_NAME: Dominic Townsend, President SIGNATURE_IMAGE: 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 AUDIT_COMPLIANCE: MARK_1: SCOPE_DESCRIPTION: DESIGN, COMPOUND AND SUPPLY OF THERMOPLASTICS FOR THE MEDICAL DEVICE INDUSTRY.

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and has a pending sale of the Distribution segment. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of CMB for periods prior to the Acquisition Date. APPENDIX Performance Additives Pigments TiO2 12% Dyestuffs 4%Polyethylene Nylon Polypropylene Other Raw Materials Styrenic Block Copolymer ~1/3 hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 31 • Exiting 2020, the majority of hydrocarbon based raw material markets were experiencing price inflation and tight inventory • Winter Storm Uri in the Gulf Coast caused further stress on the situation for 2021 • Raw materials most impacted include polyethylene, polypropylene and nylon • We purchase over 8,000 different raw materials to formulate our customized solutions and unique specifications Annual Purchases RAW MATERIAL UPDATE Based on 2020 pro forma purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% 26% 16% Latin America 2020 SEGMENT, END MARKET AND GEOGRAPHY 33 GEOGRAPHY REVENUESEGMENT FINANCIALS 21%Industrial Building & Electrical & END MARKET REVENUE All data reflects 2020 Pro forma for acquisition of the Clariant Masterbatch business. (1) The total company sales and EBITDA of $3,783M and $457M, respectively, include intercompany sales eliminations and corporate costs $2,043M $331M $709M $124M $1,110M $70M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $457M$3,783M 35% 14% Building & Electrical & C O L O R , A D D I T I V E S & I N K S 2020 PF REVENUE | $2 .0 BILLION 31% 40% 22% Latin America END MARKET REGION 34 2020 figures Pro forma for acquisition of the Clariant Masterbatch business S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 24% Wire & Cable(1) 24% Electrical & 13% 11% Building & 2020 REVENUE | $709 MILLION END MARKET 58% 19% REGION 35 (1) Approximately 50% of Wire and Cable sales are associated with Fiber Optic Cabling DI S TR IBU T I ON 2020 REVENUE | $1 .1 B ILL ION 25% 20% 14% Electrical & Building & 1% 82% Latin America END MARKET REGION K E Y S U P P L I ER S 36 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 32% 27% 12% Building & Electrical & 9% (16% of sales) 34% 16%Healthcare 17% Building & Electrical & (26% of sales) 2020 figures Pro forma for acquisition of the Clariant Masterbatch business 37 26% 19% 13% 16% Building & Electrical & US & Canada (50% of sales) 45% Building & Electrical & 2% Wire & Cable 1% LATAM (8% of sales) Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Adjusted Results Income from continuing operations before income taxes $ 102.6 $ 2.4 $ 105.0 Income tax expense - GAAP (22.9) — (22.9) Income tax impact of special items — (0.9) (0.9) Tax adjustments — 1.1 1.1 Net income attributable to noncontrolling interests (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 79.3 $ 2.6 $ 81.9 Net income / EPS $ 0.86 0.03 $ 0.89 Weighted-average diluted shares 92.2 92.2 92.2 Reconciliation to Consolidated Statements of Income March 31, 2021 Operating income - GAAP $ 120.4 Special items in operating income 2.4 Adjusted Operating income $ 122.8 1 Business Segment Operations March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Specialty Engineered Materials 216.5 185.3 708.8 745.7 645.8 Distribution 362.7 289.5 1,110.3 1,192.2 1,265.4 Corporate and eliminations (26.2) (19.8) (79.9) (79.0) (76.7) Sales $ 1,162.3 $ 711.5 $ 3,242.1 $ 2,862.7 $ 2,881.0 Gross margin: Color, Additives and Inks $ 197.5 $ 89.4 $ 484.4 $ 338.4 $ 353.4 Specialty Engineered Materials 64.7 52.6 207.6 200.2 171.7 Distribution 39.3 33.6 124.0 132.1 125.8 Corporate and eliminations 0.9 (4.1) (31.7) (13.5) (26.1) Gross margin $ 302.4 $ 171.5 $ 784.3 $ 657.2 $ 624.8 Selling and administrative expense: Color, Additives and Inks $ 108.7 $ 48.9 $ 303.6 $ 191.0 $ 194.9 Specialty Engineered Materials 30.5 30.3 113.2 116.5 99.4 Distribution 15.3 14.2 54.5 56.7 54.3 Corporate and eliminations 27.5 25.3 123.7 136.2 97.6 Selling and administrative expense $ 182.0 $ 118.7 $ 595.0 $ 500.4 $ 446.2 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 34.2 22.3 94.4 83.7 72.3 Distribution 24.0 19.4 69.5 75.4 71.5 Corporate and eliminations (26.6) (29.4) (155.4) (149.7) (123.7) Operating income $ 120.4 $ 52.8 $ 189.3 $ 156.8 $ 178.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 42.0 29.8 124.4 113.2 95.5 Distribution 24.2 19.5 70.2 75.9 72.2 Corporate and eliminations (24.9) (28.0) (146.2) (144.3) (119.3) Other income, net 1.5 1.6 24.3 12.1 (12.9) EBITDA $ 159.0 $ 74.3 $ 328.6 $ 247.0 $ 238.3 EBITDA as a % of Sales: Color, Additives and Inks 19.1 % 20.0 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 19.4 % 16.1 % 17.6 % 15.2 % 14.8 % Distribution 6.7 % 6.7 % 6.3 % 6.4 % 5.7 % 2 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(1) — 279.4 540.4 1,118.6 1,209.8 Pro forma sales $ 609.3 $ 535.9 $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(1) — 23.0 45.0 72.9 80.3 Pro forma operating income $ 88.8 $ 63.5 $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 27.4 $ 10.9 $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(1) — 15.1 30.1 60.3 61.2 Pro forma depreciation & amortization $ 27.4 $ 26.0 $ 105.2 $ 103.0 $ 105.5 Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(1) — 38.1 75.1 133.2 141.5 Pro forma EBITDA $ 116.2 $ 89.5 $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 19.1 % 16.7 % 16.2 % 15.2 % 15.3 % March 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 711.5 $ — $ 711.5 $ 279.4 $ 990.9 Operating income 52.8 9.7 62.5 23.0 85.5 Interest expense, net (9.4) — (9.4) (12.8) (22.2) Other income, net 1.6 (0.1) 1.5 — 1.5 Income taxes (11.9) (1.0) (12.9) (2.4) (15.3) Net income from continuing operations attributable to Avient shareholders $ 33.1 $ 8.6 $ 41.7 $ 7.8 $ 49.5 Weighted average diluted shares 86.7 Impact to diluted shares from January 2020 equity offering 6.1 Weighted average diluted shares 92.8 EPS $ 0.53 (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 3 Three Months Ended June 30, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(2) Pro Forma Adjusted Sales $ 609.1 $ — $ 609.1 $ 261.1 $ 870.2 Operating income $ 38.0 $ 9.0 $ 47.0 $ 22.0 $ 69.0 Interest expense, net (16.2) — (16.2) (5.3) (21.5) Other income, net 9.5 (0.3) 9.2 — 9.2 Income taxes (7.9) 0.7 (7.2) (3.8) (11.0) Net income attributable to non controlling interests (0.4) — (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 23.0 $ 9.4 $ 32.4 $ 12.9 $ 45.3 Weighted average diluted shares 91.8 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 107.1 Pro forma adjusted EPS $ 0.42 (2) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition Year Ended December 31, Reconciliation to Adjusted EBITDA 2020 2019 2018 Net income from continuing operations – GAAP $ 133.8 $ 75.7 $ 87.4 Income tax expense 5.2 33.7 14.4 Interest expense 74.6 59.5 62.8 Debt extinguishment cost — — 1.1 Depreciation and amortization from continuing operations 115.0 78.1 72.6 EBITDA $ 328.6 $ 247.0 $ 238.3 Special items, before tax 66.2 61.7 59.5 Interest expense included in special items (10.1) — — Accelerated depreciation included in special items (3.2) — (3.0) Adjusted EBITDA $ 381.6 $ 308.7 $ 294.8 4 December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(3) Pro Forma Adjusted Sales $ 3,242.1 $ — $ 3,242.1 $ 540.4 $ 3,782.5 Operating income $ 189.3 $ 73.7 $ 263.0 $ 45.0 $ 308.0 Interest expense, net (74.6) 10.1 (64.5) (18.1) (82.6) Other income, net 24.3 (17.6) 6.7 — 6.7 Income taxes (5.2) (41.4) (46.6) (6.2) (52.8) Net income attributable to noncontrolling interests (1.8) — (1.8) — (1.8) Net income from continuing operations attributable to Avient shareholders $ 132.0 $ 24.8 $ 156.8 $ 20.7 $ 177.5 Weighted average diluted shares 90.6 Impact to diluted shares from January 2020 equity offering 1.5 Pro forma weighted average diluted shares 92.1 Pro forma adjusted EPS $ 1.93 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 213.6 $ — $ 56.1 $ 269.7 $ 45.0 $ — $ 314.7 Depreciation and amortization 115.0 (3.2) 111.8 30.1 141.9 EBITDA from continuing operations $ 328.6 $ 52.9 $ 381.5 $ 75.1 $ 456.6 December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 2,862.7 $ — $ 2,862.7 $ 1,118.6 $ 3,981.3 Operating income $ 156.8 $ 71.7 $ 228.5 $ 72.9 $ 301.4 Interest expense, net (59.5) — (59.5) (33.4) (92.9) Other income, net 12.1 (10.0) 2.1 — 2.1 Income taxes (33.7) (5.9) (39.6) (9.1) (48.7) Net income attributable to noncontrolling interests (0.2) — (0.2) — (0.2) Net income from continuing operations attributable to Avient shareholders $ 75.5 $ 55.8 $ 131.3 $ 30.4 $ 161.7 Weighted average diluted shares 77.7 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 93.0 Pro forma adjusted EPS $ 1.74 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 168.9 $ — $ 61.7 $ 230.6 $ 72.9 $ — $ 303.5 Depreciation and amortization 78.1 — 78.1 60.3 138.4 EBITDA from continuing operations $ 247.0 $ 61.7 $ 308.7 $ 133.2 $ 441.9 (3) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 5 Avient IR Presentation - June 2021.pdf Avient IR Presentation - June 2021 w Non GAAP Recs.pdf Avient IR Presentation - May 2021 w Non-GAAP Recs.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf 4.29 127pm Q1 21 IR Deck Version non-GAAP Recs (002).pdf

Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). Avient acquired Clariant Color on July 1, 2020 (the “Acquisition Date”). To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of CMB for periods prior to the Acquisition Date.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of CMB for periods prior to the Acquisition Date. APPENDIX Performance Additives Pigments TiO2 12% Dyestuffs 4%Polyethylene Nylon Polypropylene Other Raw Materials Styrenic Block Copolymer ~1/3 hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 31 • Exiting 2020, the majority of hydrocarbon based raw material markets were experiencing price inflation and tight inventory • Winter Storm Uri in the Gulf Coast caused further stress on the situation for 2021 • Raw materials most impacted include polyethylene, polypropylene and nylon • We purchase over 8,000 different raw materials to formulate our customized solutions and unique specifications Annual Purchases RAW MATERIAL UPDATE Based on 2020 pro forma purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% 26% 16% Latin America 2020 SEGMENT, END MARKET AND GEOGRAPHY 33 GEOGRAPHY REVENUESEGMENT FINANCIALS 21%Industrial Building & Electrical & END MARKET REVENUE All data reflects 2020 Pro forma for acquisition of the Clariant Masterbatch business. (1) The total company sales and EBITDA of $3,783M and $457M, respectively, include intercompany sales eliminations and corporate costs $2,043M $331M $709M $124M $1,110M $70M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $457M$3,783M 35% 14% Building & Electrical & C O L O R , A D D I T I V E S & I N K S 2020 PF REVENUE | $2 .0 BILLION 31% 40% 22% Latin America END MARKET REGION 34 2020 figures Pro forma for acquisition of the Clariant Masterbatch business S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 24% Wire & Cable(1) 24% Electrical & 13% 11% Building & 2020 REVENUE | $709 MILLION END MARKET 58% 19% REGION 35 (1) Approximately 50% of Wire and Cable sales are associated with Fiber Optic Cabling DI S TR IBU T I ON 2020 REVENUE | $1 .1 B ILL ION 25% 20% 14% Electrical & Building & 1% 82% Latin America END MARKET REGION K E Y S U P P L I ER S 36 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 32% 27% 12% Building & Electrical & 9% (16% of sales) 34% 16%Healthcare 17% Building & Electrical & (26% of sales) 2020 figures Pro forma for acquisition of the Clariant Masterbatch business 37 26% 19% 13% 16% Building & Electrical & US & Canada (50% of sales) 45% Building & Electrical & 2% Wire & Cable 1% LATAM (8% of sales) Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Adjusted Results Income from continuing operations before income taxes $ 102.6 $ 2.4 $ 105.0 Income tax expense - GAAP (22.9) — (22.9) Income tax impact of special items — (0.9) (0.9) Tax adjustments — 1.1 1.1 Net income attributable to noncontrolling interests (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 79.3 $ 2.6 $ 81.9 Net income / EPS $ 0.86 0.03 $ 0.89 Weighted-average diluted shares 92.2 92.2 92.2 Reconciliation to Consolidated Statements of Income March 31, 2021 Operating income - GAAP $ 120.4 Special items in operating income 2.4 Adjusted Operating income $ 122.8 1 Business Segment Operations March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Specialty Engineered Materials 216.5 185.3 708.8 745.7 645.8 Distribution 362.7 289.5 1,110.3 1,192.2 1,265.4 Corporate and eliminations (26.2) (19.8) (79.9) (79.0) (76.7) Sales $ 1,162.3 $ 711.5 $ 3,242.1 $ 2,862.7 $ 2,881.0 Gross margin: Color, Additives and Inks $ 197.5 $ 89.4 $ 484.4 $ 338.4 $ 353.4 Specialty Engineered Materials 64.7 52.6 207.6 200.2 171.7 Distribution 39.3 33.6 124.0 132.1 125.8 Corporate and eliminations 0.9 (4.1) (31.7) (13.5) (26.1) Gross margin $ 302.4 $ 171.5 $ 784.3 $ 657.2 $ 624.8 Selling and administrative expense: Color, Additives and Inks $ 108.7 $ 48.9 $ 303.6 $ 191.0 $ 194.9 Specialty Engineered Materials 30.5 30.3 113.2 116.5 99.4 Distribution 15.3 14.2 54.5 56.7 54.3 Corporate and eliminations 27.5 25.3 123.7 136.2 97.6 Selling and administrative expense $ 182.0 $ 118.7 $ 595.0 $ 500.4 $ 446.2 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 34.2 22.3 94.4 83.7 72.3 Distribution 24.0 19.4 69.5 75.4 71.5 Corporate and eliminations (26.6) (29.4) (155.4) (149.7) (123.7) Operating income $ 120.4 $ 52.8 $ 189.3 $ 156.8 $ 178.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 42.0 29.8 124.4 113.2 95.5 Distribution 24.2 19.5 70.2 75.9 72.2 Corporate and eliminations (24.9) (28.0) (146.2) (144.3) (119.3) Other income, net 1.5 1.6 24.3 12.1 (12.9) EBITDA $ 159.0 $ 74.3 $ 328.6 $ 247.0 $ 238.3 EBITDA as a % of Sales: Color, Additives and Inks 19.1 % 20.0 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 19.4 % 16.1 % 17.6 % 15.2 % 14.8 % Distribution 6.7 % 6.7 % 6.3 % 6.4 % 5.7 % 2 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(1) — 279.4 540.4 1,118.6 1,209.8 Pro forma sales $ 609.3 $ 535.9 $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(1) — 23.0 45.0 72.9 80.3 Pro forma operating income $ 88.8 $ 63.5 $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 27.4 $ 10.9 $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(1) — 15.1 30.1 60.3 61.2 Pro forma depreciation & amortization $ 27.4 $ 26.0 $ 105.2 $ 103.0 $ 105.5 Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(1) — 38.1 75.1 133.2 141.5 Pro forma EBITDA $ 116.2 $ 89.5 $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 19.1 % 16.7 % 16.2 % 15.2 % 15.3 % March 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 711.5 $ — $ 711.5 $ 279.4 $ 990.9 Operating income 52.8 9.7 62.5 23.0 85.5 Interest expense, net (9.4) — (9.4) (12.8) (22.2) Other income, net 1.6 (0.1) 1.5 — 1.5 Income taxes (11.9) (1.0) (12.9) (2.4) (15.3) Net income from continuing operations attributable to Avient shareholders $ 33.1 $ 8.6 $ 41.7 $ 7.8 $ 49.5 Weighted average diluted shares 86.7 Impact to diluted shares from January 2020 equity offering 6.1 Weighted average diluted shares 92.8 EPS $ 0.53 (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 3 Three Months Ended June 30, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(2) Pro Forma Adjusted Sales $ 609.1 $ — $ 609.1 $ 261.1 $ 870.2 Operating income $ 38.0 $ 9.0 $ 47.0 $ 22.0 $ 69.0 Interest expense, net (16.2) — (16.2) (5.3) (21.5) Other income, net 9.5 (0.3) 9.2 — 9.2 Income taxes (7.9) 0.7 (7.2) (3.8) (11.0) Net income attributable to non controlling interests (0.4) — (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 23.0 $ 9.4 $ 32.4 $ 12.9 $ 45.3 Weighted average diluted shares 91.8 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 107.1 Pro forma adjusted EPS $ 0.42 (2) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition Year Ended December 31, Reconciliation to Adjusted EBITDA 2020 2019 2018 Net income from continuing operations – GAAP $ 133.8 $ 75.7 $ 87.4 Income tax expense 5.2 33.7 14.4 Interest expense 74.6 59.5 62.8 Debt extinguishment cost — — 1.1 Depreciation and amortization from continuing operations 115.0 78.1 72.6 EBITDA $ 328.6 $ 247.0 $ 238.3 Special items, before tax 66.2 61.7 59.5 Interest expense included in special items (10.1) — — Accelerated depreciation included in special items (3.2) — (3.0) Adjusted EBITDA $ 381.6 $ 308.7 $ 294.8 4 December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(3) Pro Forma Adjusted Sales $ 3,242.1 $ — $ 3,242.1 $ 540.4 $ 3,782.5 Operating income $ 189.3 $ 73.7 $ 263.0 $ 45.0 $ 308.0 Interest expense, net (74.6) 10.1 (64.5) (18.1) (82.6) Other income, net 24.3 (17.6) 6.7 — 6.7 Income taxes (5.2) (41.4) (46.6) (6.2) (52.8) Net income attributable to noncontrolling interests (1.8) — (1.8) — (1.8) Net income from continuing operations attributable to Avient shareholders $ 132.0 $ 24.8 $ 156.8 $ 20.7 $ 177.5 Weighted average diluted shares 90.6 Impact to diluted shares from January 2020 equity offering 1.5 Pro forma weighted average diluted shares 92.1 Pro forma adjusted EPS $ 1.93 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 213.6 $ — $ 56.1 $ 269.7 $ 45.0 $ — $ 314.7 Depreciation and amortization 115.0 (3.2) 111.8 30.1 141.9 EBITDA from continuing operations $ 328.6 $ 52.9 $ 381.5 $ 75.1 $ 456.6 December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 2,862.7 $ — $ 2,862.7 $ 1,118.6 $ 3,981.3 Operating income $ 156.8 $ 71.7 $ 228.5 $ 72.9 $ 301.4 Interest expense, net (59.5) — (59.5) (33.4) (92.9) Other income, net 12.1 (10.0) 2.1 — 2.1 Income taxes (33.7) (5.9) (39.6) (9.1) (48.7) Net income attributable to noncontrolling interests (0.2) — (0.2) — (0.2) Net income from continuing operations attributable to Avient shareholders $ 75.5 $ 55.8 $ 131.3 $ 30.4 $ 161.7 Weighted average diluted shares 77.7 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 93.0 Pro forma adjusted EPS $ 1.74 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 168.9 $ — $ 61.7 $ 230.6 $ 72.9 $ — $ 303.5 Depreciation and amortization 78.1 — 78.1 60.3 138.4 EBITDA from continuing operations $ 247.0 $ 61.7 $ 308.7 $ 133.2 $ 441.9 (3) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 5 Avient IR Presentation - May 2021.pdf Avient IR Presentation - May 2021 w Non-GAAP Recs.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf 4.29 127pm Q1 21 IR Deck Version non-GAAP Recs (002).pdf

Orangeville Compound (Update 1) Report Preview National Pollutant Release Inventory (NPRI) and Partners Home Submission Management Help My Profile:Brian Greer Logout Ec.gc.ca Report Preview Report Details Company and Facility Details Permits Contacts Details Report Year 2016 Report Type: NPRI Report Status: Update 1 ­ Submitted Modified Date/Time: 13/03/2018 2:04 PM Report Update Comments: As per email from NPRI QC team Feb 13, 2018 Company Name: Polyone Canada Inc. Submitted Report Period Submission Date Facility Name Province City Programs 2016 13/03/2018 Orangeville Compound Ontario Orangeville NPRI Note: If there is a change in the contact information for the facility, a change in the owner or operator of the facility, if operations at the facility are terminated, or if information submitted for any previous year was mistaken or inaccurate, please update this information through SWIM or by contacting the National Pollutant Release Inventory directly.