If Buyer has a dispute with respect to an invoice, Buyer must notify Seller within seven (7) business days after the date of invoice. 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. i) If Buyer is in default of performance of its obligations towards Seller and fails to provide adequate assurance of Buyer’s performance before the date of scheduled delivery; or (ii) if Seller has 9.

No.150 Şişli/İstanbul 1 WEBSITE CONTENT POLYONE TEKNO POLİMER MÜHENDİSLİK PLASTİKLERİ SANAYİ VE TİCARET ANONİM ŞİRKETİ Content to be published permanently * Please note that in case of any changes to the following content, the update shall be published on the websites on the date such changes occur.

This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017).

This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017).

If Buyer has a dispute with respect to an invoice, Buyer must notify Seller within seven (7) business days after the date of invoice. 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 par- ties, 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 invoice. 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 .

Avient acquired the Clariant Masterbatch business (CMB) on 2020年7月1日 (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 15% Pigments 15% TiO2 12% Dyestuffs 4%Polyethylene 10% Nylon 5% Polypropylene 4% Other Raw Materials 29% Styrenic Block Copolymer 6% ~1/3 hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 34 • In Q2 2021, several raw material markets experienced significant price inflation and tight inventory o Average cost of hydrocarbon based materials was up 45% year-over-year and 20% sequentially o Average cost of non-hydrocarbon based materials was up 10% year-over-year and 8% sequentially • Additionally, we experienced other supply chain challenges during Q2 related to raw material spot purchases, freight constraints and productivity loss as a result of these shortages Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2020 pro forma purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% EMEA 26% Asia 16% Latin America 8% 2021 YTD SEGMENT, END MARKET AND GEOGRAPHY 36 GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 23% Packaging 20% Industrial 16% Building and Construction 9% Telecommunications 4% Energy 2% END MARKET REVENUE (1) Total company sales and EBITDA of $2,398M and $320M, respectively, include intercompany sales eliminations and corporate costs All charts reflect YTD financials through June 30 $1,234M $228M $457M $87M $767M $48M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $320M$2,398M (1) Transportation 12% Healthcare 14% Packaging 34% Consumer 21% Healthcare 7% Industrial 16% Building & Construction 10% Transportation 9% Energy 2% Telecommunications 1% C O L O R , A D D I T I V E S & I N K S 2 0 2 1 Y T D R E V E N U E | $ 1 . 2 B I L L I O N US & Canada 31% EMEA 42% Asia 21% Latin America 6% END MARKET REGION 37 All charts reflect 2021 YTD financials through June 30 S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Consumer 28% Healthcare 10% Packaging 6% Telecommunications 16% Industrial 12% Transportation 11% Building & Construction 10% Energy 7% 2 0 2 1 Y T D R E V E N U E | $ 4 5 7 M I L L I O N END MARKET US & Canada 54% EMEA 26% Asia 20% REGION 38 All charts reflect 2021 YTD financials through June 30 D I S T R I B U T I O N Healthcare 27% Consumer 22% Packaging 5% Industrial 20% Transportation 16% Building and Construction 8% Energy 1% Telecommunications 1% US & Canada 81% Asia 4% Latin America 15% END MARKET REGION K E Y S U P P L I E R S 2 0 2 1 Y T D R E V E N U E | $ 7 6 7 M I L L I O N 39 All charts reflect 2021 YTD financials through June 30 T O T A L C O M PA N Y R E G I O N A L S A L E S B Y E N D M A R K E T Packaging 30% Consumer 27%Healthcare 11% Industrial 15% Building & Construction 5% Telecommunications 2% Energy 2% Asia (16% of sales) Transportation 8% Packaging 32% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 11% Telecommunications 5% Energy 4% EMEA (26% of sales) Transportation 12% 40 Consumer 25% Healthcare 19% Packaging 11% Industrial 16% Building & Construction 10% Telecommunications 4% Energy 2% US & Canada (50% of sales) Transportation 13% Packaging 40% Consumer 33% Healthcare 4% Industrial 10% Building & Construction 5% Telecommunications 1% LATAM (8% of sales) Transportation 7% All charts reflect 2021 YTD financials through June 30 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Three Months Ended 2021年6月30日 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Items Adjusted Results Operating income $ 108.1 $ 14.2 $ 122.3 Income from continuing operations before income taxes $ 89.8 $ 14.2 $ 104.0 Income tax expense - GAAP (20.4) — (20.4) Income tax impact of special items — (3.4) (3.4) Tax adjustments — 0.9 0.9 Net income attributable to noncontrolling interests (0.6) — (0.6) Net income from continuing operations attributable to Avient shareholders $ 68.8 $ 11.7 $ 80.5 Net income / EPS $ 0.74 $ 0.13 $ 0.87 Weighted-average diluted shares 92.4 92.4 92.4 Three Months Ended 2020年9月30日 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Items Adjusted Results Operating income $ 33.5 $ 40.4 $ 73.9 Income from continuing operations before income taxes $ 5.3 $ 50.0 $ 55.3 Income tax expense - GAAP (2.7) — (2.7) Income tax impact of special items — (12.7) (12.7) Tax adjustments — 3.0 3.0 Net income attributable to noncontrolling interests (0.9) — (0.9) Net income from continuing operations attributable to Avient shareholders $ 1.7 $ 40.3 $ 42.0 Net income / EPS $ 0.02 $ 0.44 $ 0.46 Weighted-average diluted shares 91.9 91.9 91.9 Three Months Ended Year Ended December 31, Reconciliation to Pro Forma Adjusted EBITDA 2021年6月30日 2021年3月31日 2020年6月30日 2020 2019 Net income from continuing operations – GAAP $ 69.4 $ 79.7 $ 23.4 $ 133.8 $ 75.7 Income tax expense 20.4 22.9 7.9 5.2 33.7 Interest expense 19.5 19.3 16.2 74.6 59.5 Depreciation and amortization from continuing operations 33.8 37.1 20.9 115.0 78.1 EBITDA $ 143.1 $ 159.0 $ 68.4 $ 328.6 $ 247.0 Special items, before tax 14.2 2.4 2.4 66.2 61.7 Interest expense included in special items — — (0.5) (10.1) — Depreciation and amortization included in special items 1.4 (0.5) (1.2) (3.2) — Adjusted EBITDA $ 158.7 $ 160.9 $ 69.1 $ 381.6 $ 308.7 Clariant MB pro forma adjustments(1) — — 37.0 75.1 133.2 Pro forma adjusted EBITDA $ 158.7 $ 160.9 $ 106.1 $ 456.7 $ 441.9 (1) Pro forma adjustments for the periods prior to the acquisition date (2020年7月1日) and to give effects to the financing for the acquisition 1 Reconciliation of EBITDA by Segment Three Months Ended June 30, Six Months Ended June 30, Year Ended 2021年12月31日 2020 2021 2020 2019 2018 Sales: Color, Additives and Inks $ 624.4 $ 226.8 $ 1,233.7 $ 483.3 $ 1,502.9 $ 1,003.8 Specialty Engineered Materials 240.6 158.8 457.1 344.1 708.8 745.7 Distribution 404.4 238.8 767.1 528.3 1,110.3 1,192.2 Corporate and eliminations (34.2) (15.3) (60.4) (35.1) (79.9) (79.0) Sales $ 1,235.2 $ 609.1 $ 2,397.5 $ 1,320.6 $ 3,242.1 $ 2,862.7 Operating income: Color, Additives and Inks $ 86.3 $ 32.3 $ 175.1 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 37.3 17.0 71.5 94.4 83.7 72.3 Distribution 23.7 14.6 47.7 69.5 75.4 71.5 Corporate and eliminations (39.2) (25.9) (65.8) (155.4) (149.7) (123.7) Operating income $ 108.1 $ 38.0 $ 228.5 $ 189.3 $ 156.8 $ 178.6 Items below OI in Corporate: Other income, net $ 1.2 $ 9.5 $ 2.7 $ 24.3 $ 12.1 $ (12.9) Depreciation & amortization: Color, Additives and Inks $ 25.3 $ 10.6 $ 52.6 $ 75.1 $ 42.7 $ 44.3 Specialty Engineered Materials 8.1 7.6 15.9 30.0 29.5 23.2 Distribution 0.2 0.1 0.4 0.7 0.5 0.7 Corporate and eliminations 0.2 2.6 2.0 9.2 5.4 4.4 Depreciation & Amortization $ 33.8 $ 20.9 $ 70.9 $ 115.0 $ 78.1 $ 72.6 EBITDA: Color, Additives and Inks $ 111.6 $ 42.9 $ 227.7 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 45.4 24.6 87.4 124.4 113.2 95.5 Distribution 23.9 14.7 48.1 70.2 75.9 72.2 Corporate and eliminations (39.0) (23.3) (63.8) (146.2) (144.3) (119.3) EBITDA $ 143.1 $ 68.4 $ 302.1 $ 328.6 $ 247.0 $ 238.3 EBITDA as a % of Sales: Color, Additives and Inks 17.9 % 18.9 % 18.5 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 18.9 % 15.5 % 19.1 % 17.6 % 15.2 % 14.8 % Distribution 5.9 % 6.2 % 6.3 % 6.3 % 6.4 % 5.7 % 2 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended June 30, Six Months Ended June 30, Year Ended 2021年12月31日 2020 2021 2020 2019 2018 Sales: Color, Additives and Inks $ 624.4 $ 226.8 $ 1,233.7 $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(1) — 261.1 — 540.4 1,118.6 1,209.8 Pro forma sales $ 624.4 $ 487.9 $ 1,233.7 $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 86.3 $ 32.3 $ 175.1 $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(1) — 22.0 — 45.0 72.9 80.3 Pro forma operating income $ 86.3 $ 54.3 $ 175.1 $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 25.3 $ 10.6 $ 52.6 $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(1) — 15.0 — 30.1 60.3 61.2 Pro forma depreciation & amortization $ 25.3 $ 25.6 $ 52.6 $ 105.2 $ 103.0 $ 105.5 EBITDA Color, Additives and Inks $ 111.6 $ 42.9 $ 227.7 $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(1) — 37.0 — 75.1 133.2 141.5 Pro forma EBITDA $ 111.6 $ 79.9 $ 227.7 $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 17.9 % 16.4 % 18.5 % 16.2 % 15.2 % 15.3 % (1) - Pro forma adjustments for the periods prior to the acquisition date (2020年7月1日) and to give effects of the financing for the acquisition Three Months Ended 2020年6月30日 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient 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 (6.6) 2.9 — 2.9 Income taxes (7.9) 0.2 (7.7) (3.8) (11.5) Net income attributable to noncontrolling interests (0.4) — (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 23.0 $ 2.6 $ 25.6 $ 12.9 $ 38.5 Weighted average diluted shares 91.8 Pro forma adjusted EPS $ 0.42 (1) - Pro forma adjustments for the periods prior to the acquisition date (2020年7月1日) and to give effects of the financing for the acquisition 3 Year Ended 2020年12月31日 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient 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 (1) - Pro forma adjustments for the periods prior to the acquisition date (2020年7月1日) and to give effects of the financing for the acquisition Year Ended 2019年12月31日 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient 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 (1) - Pro forma adjustments for the periods prior to the acquisition date (2020年7月1日) and to give effects of the financing for the acquisition 4 AVNT Seaport Conference Presentation.pdf AVNT Q2 2021 Earnings Presentation - Website.pdf AVNT Q2 2021 Earnings Presentation - Website.pdf Final - 7.19 1158am Q2 21 IR Deck Version v2

If Buyer has a dispute with respect to an invoice, Buyer must notify Seller within seven (7) business days after the date of invoice. 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. unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer.

If Buyer has a dispute with respect to an invoice, Buyer must notify Seller within eight (8) business days after the date of invoice. Any times or dates for delivery communicated by Seller (including those contained in 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 invoice. 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.