PREFORMED LINE PRODUCTS CO 10-Q

ITEM 5. OTHER INFORMATION None. 25 Item 6. Exhibits and Financial Statement Schedules Exhibit Number Exhibit 31.1 Certification of the Principal Executive Officer, Robert G. Ruhlman, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed herewith. 31.2 Certification of the Principal Accounting Officer, Andrew S. Klaus, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed herewith. 32.1 Certification of the Principal Executive Officer, Robert G. Ruhlman, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, furnished. 32.2 Certification of the Principal Accounting Officer, Andrew S. Klaus, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, furnished. 101.INS Inline XBRL Instance Document. 101.SCH Inline XBRL Taxonomy Extension Schema Document. 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document. 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document. 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document. 104 Cover Page Interactive Data File (embedded within the inline XBRL document) 26 SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Preformed Line Products Company May 4, 2023 /s/ Robert G. Ruhlman Robert G. Ruhlman Chairman, President and Chief Executive Officer (principal executive officer) May 4, 2023 /s/ Andrew S. Klaus Andrew S. Klaus Chief Financial Officer (principal financial and accounting officer) 27