WESTLAKE CORP
For the period ended Sep 30, 2026. Filed Nov 4, 2026.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Sep 30, 2026 · Filed Nov 4, 2026
WLK$64.13+1.0%Stored close · as of Nov 9, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Item 6. Exhibits
| Exhibit No. | Exhibit Index |
| 3.1 | Restated Certificate of Incorporation of Westlake as filed with the Delaware Secretary of State on February 20, 2024 (incorporated by reference to Exhibit 3.1 to Westlake's Annual Report on Form 10-K for the year ended December 31, 2023 filed on February 22, 2024, File No. 001-32260). |
| 3.2 | Amended and Restated Bylaws of Westlake (incorporated by reference to Westlake's Current Report on Form 8-K, filed on February 18, 2022, File No. 001-32260). |
| 10.1 | Third Amendment to Amended and Restated Senior Unsecured Revolving Credit Agreement, by and among Westlake Chemical OpCo LP, Westlake Polymers LLC, and the lenders thereto, dated as of July 8, 2026 (incorporated by reference to Exhibit 10.2 to Westlake's Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, filed on August 5, 2026, File No. 001-32260). |
| 10.2 | Fifth Amendment to Senior Unsecured Revolving Credit Agreement, by and between Westlake Chemical Partners LP, as borrower, and Westlake Chemical Finance Corporation, as lender, dated as of July 8, 2026 (incorporated by reference to Exhibit 10.3 to Westlake's Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, filed on August 5, 2026, File No. 001-32260). |
| 31.1† | Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Executive Officer). |
| 31.2† | Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Financial Officer). |
| 32.1# | Section 1350 Certification (Principal Executive Officer and Principal Financial Officer). |
| 101.INS† | Inline XBRL Instance Document - The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL 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 |
| 101.PRE† | Inline XBRL Taxonomy Extension Presentation Linkbase Document |
| 104 | Cover Page Interactive Data File - The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document and contained in Exhibit 101 |
† Filed herewith.
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