Avient Corporation was originally established as PolyOne Corporation in 2000 through the consolidation of two companies in the materials industry.

Microsoft PowerPoint - Recast Financial Information for Pension Standard v13 2013 to 2017 Recast GAAP Financial Information for the Adoption of ASU 2017-07: Presentation of Net Periodic Pension and Postretirement Benefit Cost April 26, 2018 POLYONE CORPORATION 2 Reflects quarterly GAAP financial adjustments for the adoption of ASU 2017-07. Description POLYONE CORPORATION 3 2013 to 2017 Recast GAAP Financial Information for the Adoption of ASU 2017-07 Q1 Q2 Q3 Q4 YTD Q1 Q2 Q3 Q4 YTD Q1 Q2 Q3 Q4 YTD Operating Income - As Previously Reported 56.3$ 73.1$ 55.5$ 58.1$ 243.0$ 56.0$ 49.3$ 57.9$ (12.6)$ 150.6$ 70.3$ 78.7$ 74.3$ 34.3$ 257.6$ Interest Cost 6.1 6.1 6.1 6.2 24.5 6.4 6.4 6.4 6.4 25.6 5.5 5.5 5.5 5.4 21.9 Expected Return on Plan Assets (9.3) (9.3) (9.3) (9.5) (37.4) (8.1) (8.1) (8.0) (8.0) (32.2) (8.2) (8.2) (8.2) (8.1) (32.7) Mark to Market Adjustment - - - (44.0) (44.0) - - - 56.5 56.5 - - - 11.6 11.6 Operating Income - Recasted for ASU 2017-07 53.1$ 69.9$ 52.3$ 10.8$ 186.1$ 54.3$ 47.6$ 56.3$ 42.3$ 200.5$ 67.6$ 76.0$ 71.6$ 43.2$ 258.4$ Other Income (Expense), net - As Previously Reported 1.5$ (1.3)$ (1.5)$ -$ (1.3)$ (0.7)$ (0.4)$ (1.6)$ (1.4)$ (4.1)$ (0.6)$ (1.2)$ (1.7)$ 0.3$ (3.2)$ Interest Cost (6.1) (6.1) (6.1) (6.2) (24.5) (6.4) (6.4) (6.4) (6.4) (25.6) (5.5) (5.5) (5.5) (5.4) (21.9) Expected Return on Plan Assets 9.3 9.3 9.3 9.5 37.4 8.1 8.1 8.0 8.0 32.2 8.2 8.2 8.2 8.1 32.7 Mark to Market Adjustment - - - 44.0 44.0 - - - (56.5) (56.5) - - - (11.6) (11.6) Other Income (Expense), net - Recasted for ASU 2017-07 4.7$ 1.9$ 1.7$ 47.3$ 55.6$ 1.0$ 1.3$ -$ (56.3)$ (54.0)$ 2.1$ 1.5$ 1.0$ (8.6)$ (4.0)$ Q1 Q2 Q3 Q4 YTD Q1 Q2 Q3 Q4 YTD Operating Income - As Previously Reported 70.4$ 81.8$ 72.0$ 62.1$ 286.3$ 84.0$ 80.0$ 67.7$ 45.8$ 277.5$ Interest Cost 5.3 5.3 5.3 5.3 21.2 4.9 4.9 4.9 5.0 19.7 Expected Return on Plan Assets (7.9) (7.9) (7.8) (7.8) (31.4) (6.9) (6.9) (6.9) (7.0) (27.7) Mark to Market Adjustment - - - (8.4) (8.4) - - - 3.3 3.3 Operating Income - Recasted for ASU 2017-07 67.8$ 79.2$ 69.5$ 51.2$ 267.7$ 82.0$ 78.0$ 65.7$ 47.1$ 272.8$ Other Income (Expense), net - As Previously Reported -$ 0.1$ (0.1)$ 0.4$ 0.4$ (1.1)$ (1.4)$ (0.7)$ (0.9)$ (4.1)$ Interest Cost (5.3) (5.3) (5.3) (5.3) (21.2) (4.9) (4.9) (4.9) (5.0) (19.7) Expected Return on Plan Assets 7.9 7.9 7.8 7.8 31.4 6.9 6.9 6.9 7.0 27.7 Mark to Market Adjustment - - - 8.4 8.4 - - - (3.3) (3.3) Other Income (Expense), net - Recasted for ASU 2017-07 2.6$ 2.7$ 2.4$ 11.3$ 19.0$ 0.9$ 0.6$ 1.3$ (2.2)$ 0.6$ 2013 2014 2015 2016 2017

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