Based on the research undertaken, different mood boards were created to define three target personalities; ‘Gnarly Bomber - an edgy personality, radical and built for speed. Each mood board featured lifestyle photos and colors to capture the spirit of the three target personalities.

When showing constant dollar figures on GAAP and non-GAAP financial measures, the foreign exchange impact is calculated by using current foreign exchange rates and applying them to the prior period results. Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,120 $51 $84 $212 $650 $108 $113 $231 $230 $265 $358 $726 $730 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable Growth Great Place to Work 5.4% 10.9% 2006 2014 2023E EBITDA Margins $0.14 $1.93 2006 2014 2023E TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 3 5 5 87th 94th percentile Innovation is the lifeblood of a specialty company. We also monitor earnings (defined as net income from continuing operations) before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA (EBITDA before the impact of special items) as a supplement to our GAAP measures.

 Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.  The above list of factors is not exhaustive.  We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations. Trailing twelve months adjusted gross margin is calculated as follows: Three Months Nine Months Trailing Twelve Months (TTM) Ended (In millions) December 31, 2014 September 30, 2015 September 30, 2015 Gross margin - GAAP $ 152.6 $ 524.6 $ 677.2 Special items in gross margin 15.8 30.0 45.8 Gross margin excluding special items $ 168.4 $ 554.6 $ 723.0 Adjusted EBITDA and net debt to adjusted EBITDA is calculated as follows: Three Months Nine Months Trailing Twelve Months (TTM) Ended (In millions) December 31, 2014 September 30, 2015 September 30, 2015 Income from continuing operations, before income taxes $ (31.2) $ 168.1 $ 136.9 Interest expense, net 15.6 48.5 64.1 Depreciation and amortization 25.0 78.4 103.4 Special items, impact on income from continuing operations before income taxes 80.8 39.8 120.6 Accelerated depreciation included in special items (0.2) (4.6) (4.8) Adjusted EBITDA $ 90.0 $ 330.2 $ 420.2 Short-term portion and current portion of long-term debt $ 61.8 Long-term debt 1,038.0 Less: Cash and cash equivalents (235.7) Net Debt 864.1 Net Debt/TTM Adjusted EBITDA 2.1 ��PolyOne Investor Presentation�Goldman Sachs 2015 US Emerging/�SMID Cap Growth Conference�November 2015�� Forward-Looking Statements Use of Non-GAAP Measures PolyOne Commodity to Specialty Transformation PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Proof of Performance & 2020 Goals Innovation Drives Earnings Growth Innovation Pipeline Potential Innovation Initiatives Design and Service as a Differentiator Customer First Through World-Class Service Debt Maturities & Pension Funding Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return Why Invest In PolyOne?

 Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.  The above list of factors is not exhaustive.  We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations. Net debt to adjusted EBITDA is calculated as follows: Six Months Ended Twelve Months Ended Six Months Ended Trailing Twelve Months (TTM) Ended (In millions) March 31, 2014 December 31, 2014 March 31, 2015 March 31, 2015 Short-term portion and current portion of long-term debt $ 12.7 $ 61.8 $ 61.8 Long-term debt 967.9 962.0 996.4 Less: Cash and cash equivalents (261.5) (238.6) (236.8) Net Debt $ 719.1 785.2 821.4 Income before income taxes $ 73.2 $ 88.4 $ 116.7 $ 131.9 Interest expense, net 31.2 62.2 32.3 63.3 Depreciation and amortization 72.2 123.9 50.1 101.8 Special items, impact on operating income 62.2 164.9 21.2 123.9 Accelerated depreciation included in special items (20.5) (23.1) (0.3) (2.9) Adjusted EBITDA $ 218.3 $ 416.3 $ 220.0 $ 418.0 Net Debt/TTM Adjusted EBITDA 2.0 POL IR Presentation - Jefferies Industrials Conference 2015 website ��PolyOne Investor Presentation�Jefferies 2015 Industrials Conference�August 2015�� Forward-Looking Statements Use of Non-GAAP Measures PolyOne Commodity to Specialty Transformation PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Confirmation of Our Strategy Strategy and Execution Drive Results Proof of Performance & 2020 Goals Platinum Vision: Pathway to Accelerated Growth Innovation Drives Earnings Growth Megatrends Aligned with Key End Markets A Rich Pipeline of Opportunity Debt Maturities & Pension Funding Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return PolyOne Core Values Why Invest In PolyOne?

Reconciliation to Consolidated Statements of Income 2021 2020 Sales $ 1,162.3 $ 711.5 Gross margin - GAAP 302.4 171.5 Special items in gross margin (Attachment 3) (2.2) 0.2 Adjusted Gross margin $ 300.2 $ 171.7 Adjusted Gross margin as a percent of sales 25.8 % 24.1 % Operating income - GAAP 120.4 52.8 Special items in operating income (Attachment 3) 2.4 9.7 Adjusted Operating income $ 122.8 $ 62.5 Adjusted Operating income as a percent of sales 10.6 % 8.8 % The table below reconciles pre-special income tax expense and the pre-special effective tax rate to their most comparable US GAAP figures. GAAP Special Adjusted GAAP Special Adjusted Income from continuing operations before income taxes $ 102.6 $ 2.4 $ 105.0 $ 45.0 $ 9.6 $ 54.6 Income tax expense - GAAP (22.9) — (22.9) (11.9) — (11.9) Income tax impact of special items (Attachment 3) — (0.9) (0.9) — (2.0) (2.0) Tax adjustments (Attachment 3) — 1.1 1.1 — 1.0 1.0 Income tax (expense) benefit $ (22.9) $ 0.2 $ (22.7) $ (11.9) $ (1.0) $ (12.9) Effective Tax Rate(1) 22.3 % 21.6 % 26.5 % 23.7 % (1) Rates may not recalculate from figures presented herein due to rounding 13 The following pro forma adjustments are referenced by management to provide comparable business performance by incorporating the Clariant Masterbatch business in periods prior to the acquisition date (July 1, 2020). Reconciliation of Pro Forma Adjusted Earnings per Share: Three Months Ended Net income from continuing operations attributable to Avient shareholders $ 33.1 Special items, after tax (Attachment 3) 8.6 Adjusted net income from continuing operations excluding special items 41.7 Clariant MB pro forma adjustments to net income from continuing operations(2) 7.8 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 49.5 Weighted average diluted shares 86.7 Pro forma impact to diluted shares from January 2020 equity offering 6.1 Pro forma weighted average diluted shares 92.8 Adjusted EPS - excluding special items pro forma for Clariant MB acquisition $ 0.53 December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Adjusted Clariant MB Pro Forma Adjustments(2) 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 (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition 14 December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Adjusted Clariant MB Pro Forma Adjustments(3) 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 (3) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition 15 Reconciliation of EBITDA by Segment Year Ended December 31, 2021 2020 2020 2019 2018 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 Items Below OI in Corporate Other income, net $ 1.5 $ 1.6 $ 24.3 $ 12.1 $ (12.9) Depreciation & Amortization: Color, Additives and Inks $ 27.4 $ 10.9 $ 75.1 $ 42.7 $ 44.3 Specialty Engineered Materials 7.8 7.5 30.0 29.5 23.2 Distribution 0.2 0.1 0.7 0.5 0.7 Corporate and eliminations 1.7 1.4 9.2 5.4 4.4 Depreciation & Amortization $ 37.1 $ 19.9 $ 115.0 $ 78.1 $ 72.6 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) 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 % 16 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended March 31, Year Ended December 31, 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(4) 279.4 540.4 1,118.6 1,209.8 Pro forma sales $ 535.9 $ 2,043.3 $ 2,122.4 $ 2,256.3 Color, Additives and Inks $ 40.5 $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(4) 23.0 45.0 72.9 80.3 Pro forma operating income $ 63.5 $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 10.9 $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(4) 15.1 30.1 60.3 61.2 Pro forma depreciation & amortization $ 26.0 $ 105.2 $ 103.0 $ 105.5 Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA): Color, Additives and Inks $ 51.4 $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(4) 38.1 75.1 133.2 141.5 Pro forma EBITDA $ 89.5 $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 16.7 % 16.2 % 15.2 % 15.3 % Three Months Ended March 31, Year Ended December 31, Reconciliation to Adjusted EBITDA: 2021 2020 2020 2019 2018 Net income from continuing operations – GAAP $ 79.7 $ 33.1 $ 133.8 $ 75.7 $ 87.4 Income tax expense 22.9 11.9 5.2 33.7 14.4 Interest expense 19.3 9.4 74.6 59.5 62.8 Debt extinguishment cost — — 1.1 Depreciation and amortization from continuing operations 37.1 19.9 115.0 78.1 72.6 EBITDA $ 159.0 $ 74.3 $ 328.6 $ 247.0 $ 238.3 Special items, before tax 2.4 9.6 66.2 61.7 59.5 Interest expense included in special items — — (10.1) — — Accelerated depreciation included in special items (0.5) — (3.2) — (3.0) Adjusted EBITDA $ 160.9 $ 83.9 $ 381.6 $ 308.7 $ 294.8 Reconciliation of Pro Forma Sales: Three Months Ended Sales $ 711.5 Clariant MB pro forma adjustment to sales(4) 279.4 Pro forma sales $ 990.9 (4) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) 17 Avient Announces Record First Quarter 2021 Results; Increases Full Year Guidance.pdf NEWS RELEASE 4.29 232pm News Release (002).pdf

Three Months Ended December 31, Year Ended December 31, Reconciliation to Consolidated Statements of Income 2021 2020 2021 2020 Sales $ 1,201.5 $ 997.0 $ 4,818.8 $ 3,242.1 Gross margin - GAAP 253.1 252.9 1,099.6 784.3 Special items in gross margin (Attachment 3) 5.9 1.7 33.6 25.3 Adjusted Gross margin $ 259.0 $ 254.6 $ 1,133.2 $ 809.6 Adjusted Gross margin as a percent of sales 21.6 % 25.5 % 23.5 % 25.0 % Operating income - GAAP 74.0 65.0 381.2 189.3 Special items in operating income (Attachment 3) 11.2 14.6 47.8 73.7 Adjusted Operating income $ 85.2 $ 79.6 $ 429.0 $ 263.0 Adjusted Operating income as a percent of sales 7.1 % 8.0 % 8.9 % 8.1 % The table below reconciles pre-special income tax expense and the pre-special effective tax rate to their most comparable US GAAP figures. Three Months Ended December 31, 2021 2020 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results Income from continuing operations before income taxes $ 51.1 $ 20.6 $ 71.7 $ 57.4 $ 4.2 $ 61.6 Income tax (expense) benefit - GAAP (22.2) — (22.2) 17.3 — 17.3 Income tax impact of special items (Attachment 3) — (4.1) (4.1) — 1.3 1.3 Tax adjustments (Attachment 3) — 7.5 7.5 — (32.2) (32.2) Income tax (expense) benefit $ (22.2) $ 3.4 $ (18.8) $ 17.3 $ (30.9) $ (13.6) Effective Tax Rate(1) 43.4 % 26.0 % (30.1) % 22.1 % (1) Rates may not recalculate from figures presented herein due to rounding 14 Year Ended December 31, 2021 2020 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results Income from continuing operations before income taxes $304.6 $ 57.1 $ 361.7 $ 139.0 $ 66.2 $ 205.2 Income tax expense - GAAP (74.0) — (74.0) (5.2) — (5.2) Income tax impact of special items (Attachment 3) — (13.0) (13.0) — (14.1) (14.1) Tax adjustments (Attachment 3) — 5.9 5.9 — (27.3) (27.3) Income tax expense $ (74.0) $ (7.1) $ (81.1) $ (5.2) $ (41.4) $ (46.6) Effective Tax Rate(1) 24.3 % 22.4 % 3.7 % 22.7 % (1) Rates may not recalculate from figures presented herein due to rounding The following pro forma adjustments are referenced by management to provide comparable business performance by incorporating the Clariant Color business in periods prior to the acquisition date (July 1, 2020). Reconciliation of Pro Forma Adjusted Earnings per Share: Year Ended December 31, 2020 Net income from continuing operations attributable to Avient shareholders $ 132.0 Special items, after tax 24.8 Adjusted net income from continuing operations excluding special items 156.8 Clariant Color pro forma adjustments to net income from continuing operations(2) 20.7 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 177.5 Weighted average diluted shares 90.6 Pro forma impact to diluted shares from January 2020 equity offering(2) 1.5 Pro forma weighted average diluted shares 92.1 Adjusted EPS - excluding special items pro forma for Clariant Color acquisition $ 1.93 Year Ended December 31, 2020 Sales $ 3,242.1 Clariant Color pro forma adjustment to sales(2) 540.4 Pro forma sales $ 3,782.5 (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition 15 Reconciliation of Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA) by Segment Three Months Ended December 31, Year Ended December 31, 2021 2020 2021 2020 Operating income: Color, Additives and Inks $ 61.2 $ 57.5 $ 303.1 $ 180.8 Specialty Engineered Materials 28.8 30.4 132.0 94.4 Distribution 21.7 18.0 93.2 69.5 Corporate and eliminations (37.7) (40.9) (147.1) (155.4) Operating income $ 74.0 $ 65.0 $ 381.2 $ 189.3 Items below OI in Corporate: Other income, net $ (5.4) $ 11.7 $ (1.3) $ 24.3 Depreciation & amortization: Color, Additives and Inks $ 26.4 $ 27.3 $ 105.7 $ 75.1 Specialty Engineered Materials 8.0 7.4 31.7 30.0 Distribution 0.2 0.3 0.8 0.7 Corporate and eliminations 3.6 2.8 7.7 9.3 Depreciation & Amortization $ 38.2 $ 37.8 $ 145.9 $ 115.1 EBITDA: Color, Additives and Inks $ 87.6 $ 84.8 $ 408.8 $ 255.9 Specialty Engineered Materials 36.8 37.8 163.7 124.4 Distribution 21.9 18.3 94.0 70.2 Corporate and eliminations (39.5) (26.4) (140.7) (121.8) EBITDA $ 106.8 $ 114.5 $ 525.8 $ 328.7 16 Reconciliation of Pro Forma Sales, Operating Income and EBITDA - Color, Additives and Inks Year Ended December 31, 2020 Sales: Color, Additives and Inks $ 1,502.9 Clariant Color pro forma adjustments(2) 540.4 Pro forma sales $ 2,043.3 Operating income: Color, Additives and Inks $ 180.8 Clariant Color pro forma adjustments(2) 45.0 Pro forma operating income $ 225.8 Depreciation & amortization: Color, Additives and Inks $ 75.1 Clariant Color pro forma adjustments(2) 30.1 Pro forma depreciation & amortization $ 105.2 EBITDA: Color, Additives and Inks $ 255.9 Clariant Color pro forma adjustments(2) 75.1 Pro forma EBITDA $ 331.0 (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition Three Months Ended December 31, Year Ended December 31, Reconciliation to EBITDA and Pro Forma Adjusted EBITDA: 2021 2020 2021 2020 Net income from continuing operations – GAAP $ 28.9 $ 74.7 $ 230.6 $ 133.8 Income tax expense (benefit) 22.2 (17.3) 74.0 5.2 Interest expense 17.5 19.3 75.3 74.6 Depreciation and amortization from continuing operations 38.2 37.8 145.9 115.1 EBITDA $ 106.8 $ 114.5 $ 525.8 $ 328.7 Special items, before tax 20.6 4.2 57.1 66.2 Interest expense included in special items — — (10.1) Depreciation and amortization included in special items (1.6) (0.7) (1.7) (3.2) Adjusted EBITDA $ 125.8 $ 118.0 $ 581.2 $ 381.6 Clariant Color pro forma adjustments(2) — — — 75.1 Pro forma adjusted EBITDA $ 125.8 $ 118.0 $ 581.2 $ 456.7 (2) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition 17 Net Debt Calculation December 31, 2021 Total long-term debt, net $ 1,850.3 Unamortized discount and debt issuance cost 14.4 Short-term and current portion of long term debt 8.6 Total debt $ 1,873.3 Cash (601.2) Net debt $ 1,272.1 NEWS RELEASE Attachment 1

Personal Values Integrity. These personal values begin with each of us—the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work. FUTURE GROWTH IN EXCESS OF GDP IS DRIVEN BY: Our company is positioned to sustainably grow at a rate that exceeds GDP.

Personal Values Integrity. These personal values begin with each of us—the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work. FUTURE GROWTH IN EXCESS OF GDP IS DRIVEN BY: Our company is positioned to sustainably grow at a rate that exceeds GDP.

Avient Corporation maintains a policy of non-discrimination in providing equal employment to all qualified employees and candidates regardless of race, sex, sexual orientation, gender identity, age, color, religion, national origin, disability, genetic information, protected veteran’s status, or other legally protected classification in the state or locality in which a person is employed. Any form of discrimination in violation of the provisions of Title VII of the Civil Rights Act of 1964, as amended, Title I and Title V of the Americans with Disabilities Act of 1990, as amended, The Age Discrimination in Employment Act of 1967, as amended, and/or Title II of the Genetic Information Nondiscrimination Act of 2008, or this policy is against the interests of Avient and its employees and will not be permitted.

Avient Corporation maintains a policy of non-discrimination in providing equal employment to all qualified employees and candidates regardless of race, sex, sexual orientation, gender identity, age, color, religion, national origin, disability, genetic information, protected veteran’s status, or other legally protected classification in the state or locality in which a person is employed. Any form of discrimination in violation of the provisions of Title VII of the Civil Rights Act of 1964, as amended, Title I and Title V of the Americans with Disabilities Act of 1990, as amended, The Age Discrimination in Employment Act of 1967, as amended, and/or Title II of the Genetic Information Nondiscrimination Act of 2008, or this policy is against the interests of Avient and its employees and will not be permitted.