8-K
WESTLAKE CORP (WLK)
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): January 6, 2026
Westlake Corporation
(Exact name of registrant as specified in its charter)
| Delaware | 001-32260 | 76-0346924 | ||||
|---|---|---|---|---|---|---|
| (State or other jurisdiction<br>of incorporation) | (Commission File Number) | (I.R.S. Employer<br>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, $0.01 par value | WLK | The New York Stock Exchange |
| 1.625% Senior Notes due 2029 | WLK29 | The New York Stock Exchange |
Indicate by check mark whether the registrant is an emerging growth company as defined in 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. ◻
Item 7.01 Regulation FD Disclosure
On January 5, 2026, Westlake Corporation (the "Company" or "Westlake") issued a press release announcing that it completed its previously announced acquisition of the global compounding solutions businesses of the ACI/Perplastic Group. A copy of the press release is furnished with this Current Report as Exhibit 99.1.
The information furnished pursuant to this Current Report, including Exhibit 99.1, shall not be deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liability of such section, nor shall such information be deemed incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, unless specifically identified as being incorporated therein.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
The following exhibit is furnished herewith:
99.1 Press release issued on January 5, 2026.
104 The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| WESTLAKE CORPORATION | |||
|---|---|---|---|
| Date: | January 6, 2026 | By: | /s/ L. BENJAMIN EDERINGTON |
| L. Benjamin Ederington<br><br>Executive Vice President, Legal and External Affairs |
Document
Exhibit 99.1
WESTLAKE STRENGTHENS GLOBAL COMPOUNDS PORTFOLIO WITH ACQUISITION OF ACI COMPOUNDING SOLUTIONS BUSINESS
Houston, January 5, 2026 – Westlake Corporation (NYSE: WLK) ("Westlake") announced today that it has completed the acquisition of the global compounding solutions businesses of the ACI/Perplastic Group (collectively, "ACI"). Headquartered in Portugal, ACI is a global manufacturer of specialty materials, primarily serving the wire and cable sectors.
"The integration of ACI with Westlake's compounding operations represents a strong strategic alignment, offering significant opportunities to further strengthen our Housing & Infrastructure Products (HIP) business. This acquisition will enhance the reach of Westlake Global Compounds and introduce new specialty products and advanced technologies to our portfolio," stated Jean-Marc Gilson, President and Chief Executive Officer of Westlake.
"ACI has built an impressive reputation for delivering innovative, high-value solutions," said Maribel Wilson, Vice President of Westlake Global Compounds. "We are excited to welcome their skilled team to Westlake and look forward to working together."
The acquisition expands Westlake Global Compounds' manufacturing footprint into Portugal, Romania, and Tunisia, and adds to its existing operations in Mexico.
About Westlake
Westlake is a global manufacturer and supplier of materials and innovative products that enhance life every day. Headquartered in Houston, with operations in Asia, Europe and North America, we provide the building blocks for vital solutions — from housing and construction, to packaging and healthcare, to automotive and consumer goods. For more information, visit the Company's web site at www.westlake.com.
Forward-Looking Statements
The statements in this release that are not historical statements, including statements regarding the anticipated benefits of the acquisition and the opportunities provided thereby, are forward-looking statements within the meaning of the federal securities laws. These forward-looking statements are subject to significant risks and uncertainties, many of which are beyond Westlake's control. Actual results could differ materially based on risks and uncertainties described in Westlake's Annual Report on Form 10-K for the fiscal year ended December 31, 2024, which was filed with the Securities and Exchange Commission ("SEC") in February 2025, and Westlake's Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, which was filed with the SEC in October 2025. These filings also discuss some of the important risk factors that may affect Westlake's business, results of operations and financial condition. Westlake undertakes no obligation to revise or update publicly any forward-looking statements for any reason.
Contacts
Media Inquiries: Benjamin Ederington, 713-960-9111;
Investor Inquiries: Steve Bender, 713-960-9111