X0206 3 2022-07-06 0 0000080035 PREFORMED LINE PRODUCTS CO PLPC 0001939121 Wensink Katherine E. 600 SUPERIOR AVENUE, EAST SUITE 2100 CLEVELAND OH 44114 0 0 1 0 Common Shares, $2 par value per share 604213 I As Trustee Common Shares, $2 par value per share 810400 I As Trustee These shares are beneficially owned directly by the Third Restatement of the Barbara P. Ruhlman Trust Agreement, dated November 20, 2008 (the "Trust"), and indirectly by Katherine E. Wensink, the Trustee of the Trust. Ms. Wensink became the Trustee of the Trust on July 6, 2022. These shares are beneficially owned directly by the Barbara P. Ruhlman Trust dated 9/21/16. Ms. Wensink became the Trustee of the Trust on July 6, 2022. Robert G. Ruhlman and Randall M. Ruhlman act as co-trust advisors with respect to the investment and voting of such shares. /s/ Katherine E. Wensink 2022-08-02