Westlake Corp 8-K Filing

FAQ

Key Financial Figures

• $600,000,000 — ring (the "Offering") by the Company of $600,000,000 aggregate principal amount of its 5.550
• $1.185 billion — any) from the Offering of approximately $1.185 billion. As described in the preliminary prospe
• $750 million — 3.600% senior notes due 2026, of which $750 million in aggregate principal amount was outst

Filing Documents

• d72149d8k.htm (8-K) — 38KB
• d72149dex11.htm (EX-1.1) — 187KB
• d72149dex42.htm (EX-4.2) — 199KB
• d72149dex51.htm (EX-5.1) — 12KB
• d72149dex991.htm (EX-99.1) — 8KB
• g72149g1105121627960.jpg (GRAPHIC) — 2KB
• g72149g1105124944080.jpg (GRAPHIC) — 3KB
• g72149g1105124944156.jpg (GRAPHIC) — 2KB
• 0001193125-25-267207.txt ( ) — 704KB
• wlk-20251104.xsd (EX-101.SCH) — 4KB
• wlk-20251104_def.xml (EX-101.DEF) — 13KB
• wlk-20251104_lab.xml (EX-101.LAB) — 22KB
• wlk-20251104_pre.xml (EX-101.PRE) — 14KB
• d72149d8k_htm.xml (XML) — 5KB

From the Filing

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 4, 2025 Westlake Corporation (Exact name of registrant as specified in its charter) Delaware 001-32260 76-0346924 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 2801 Post Oak Boulevard , Suite 600 Houston , Texas 77056 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (713) 960-9111 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock WLK The New York Stock Exchange 1.625% Senior Notes due 2029 WLK 29 The New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (240.12b-2 of this chapter). Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Item1.01. Entry into a Material Definitive Agreement. On November 4, 2025, Westlake Corporation (the "Company") entered into an underwriting agreement (the "Underwriting Agreement") with BofA Securities, Inc., Deutsche Bank Securities Inc., J.P. Morgan Securities LLC and Wells Fargo Securities, LLC, for themselves and as representatives of the other underwriters named therein (the "Underwriters"), with respect to the issuance and sale in an underwritten public offering (the "Offering") by the Company of $600,000,000 aggregate principal amount of its 5.550% senior notes due 2035 and $600,000,000 aggregate principal amount of its 6.375% senior notes due 2055 (collectively, the "Notes") pursuant to the Company's registration statement on Form S-3 (File No. 333-291208), as amended. The Offering is expected to close on November 6, 2025, subject to customary closing conditions. The Underwriting Agreement contains customary representations, warranties and agreements of the Company, and customary conditions to closing, obligations of the parties and termination provisions. The Company has agreed to indemnify the Underwriters against certain liabilities, including liabilities under the Securities Act of 1933, as amended (the "Securities Act"), or to contribute to payments the Underwriters may be required to make because of any of those liabilities. The Notes will be issued pursuant to an indenture, dated as of January 1, 2006 (the "Base Indenture"), by and among the Company, the potential subsidiary guarantors listed therein and The Bank of New York Mellon Trust Company, N.A. (as successor to JPMorgan Chase Bank, National Association), as trustee (the "Trustee"), as supplemented and amended by a fifteenth supplemental indenture, to be dated as of November 6, 2025 (the "Fifteenth Supplemental Indenture" and, together with the Base Indenture, the "Indenture"), between the Company and the Trustee. The Indenture will contain covenants that, among other things, restrict the Company's and certain of its subsidiaries' ability to incur certain secured indebtedness, engage in certain sale and leaseback transactions and consolidate, merge or transfer all or substantially all of its assets. These covenants will be subject to significant exceptions. The Indenture will also contain customary events of default. The form, terms and provisions of each series of the Notes are further described in the Fifteenth Supplemental Indenture and the prospectus supplement of the Company dated November 4, 2025, together with the related prospectus dated October 31, 2025, as filed with the Securities and Exchange Commission under Rule 424(b)(5) of the Securities Act on November 4, 2025, which description is incorporated herein by reference. The Company expects to receive net proceeds (after deducting underwriting discounts and commissions, but before paying offering expenses payable by the Company) from the Offering of approximately $1.185 billion. As described i

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