Westlake plans German PVC plant acquisition

Westlake Corporation reports that it and its wholly owned subsidiary Westlake Vinnolit GmbH & Co. KG have signed a non-binding letter of intent with the preliminary insolvency administrator of VYNOVA Wilhelmshaven GmbH.

Rhea-AI Filing Summary

Westlake Corporation reports that it and its wholly owned subsidiary Westlake Vinnolit GmbH & Co. KG have signed a non-binding letter of intent with the preliminary insolvency administrator of VYNOVA Wilhelmshaven GmbH. The proposal is to acquire a polyvinyl chloride (PVC) and vinyl chloride monomer (VCM) production site in Wilhelmshaven, Germany.

The potential acquisition remains at an early stage and depends on negotiating definitive agreements, obtaining regulatory approvals, the formal commencement of insolvency proceedings, final approval by the creditors’ committee, and other conditions. Westlake highlights that related statements are forward-looking and subject to significant risks and uncertainties.

Insights

Chemicals industry analyst

Westlake explores acquiring a German PVC/VCM plant, but the deal is early-stage and highly conditional.

Westlake Corporation has entered a non-binding letter of intent to potentially acquire a PVC and VCM production site in Wilhelmshaven, Germany, from VYNOVA Wilhelmshaven GmbH’s insolvency estate. This move, if completed, would add assets in a key European industrial region.

The letter of intent is explicitly non-binding and depends on several factors, including definitive documentation, regulatory approvals, formal insolvency proceedings, and creditors’ committee approval. These layers of approval, along with the insolvency context, introduce execution uncertainty.

The company underscores that statements about timing and closing are forward-looking and subject to significant risks beyond its control, such as regulatory outcomes and how the insolvency process is resolved. Future company filings may provide more detail if the parties progress to definitive agreements.

8-K Event Classification

Item 7.01 — Regulation FD Disclosure

1 item

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Key Figures

Form type: Form 8-K Letter of intent date: April 27, 2026 Reference fiscal year: 2025 +2 more

5 metrics

Form type Form 8-K Current report under the Exchange Act

Letter of intent date April 27, 2026 Date Westlake entered the non-binding LOI

Reference fiscal year 2025 Year covered by the cited Form 10-K

Senior notes coupon 1.625% Coupon on Westlake’s senior notes due 2029 listed on NYSE

Senior notes maturity 2029 Maturity year of 1.625% senior notes

Key Terms

non-binding letter of intent, preliminary insolvency administrator, Regulation FD Disclosure, forward-looking statements, +2 more

6 terms

non-binding letter of intent financial

"entered into a non-binding letter of intent with the preliminary insolvency administrator"

A non-binding letter of intent is a preliminary document that outlines the main terms and expectations of a proposed transaction—such as a merger, acquisition, investment or partnership—without creating a legally enforceable obligation to complete the deal. Think of it as a written handshake or shopping list: it signals serious interest and sets the framework for negotiations and due diligence, which can move markets, but it does not guarantee the transaction will happen until a final, binding agreement is signed.

preliminary insolvency administrator regulatory

"entered into a non-binding letter of intent with the preliminary insolvency administrator of VYNOVA Wilhelmshaven GmbH"

Regulation FD Disclosure regulatory

"Item 7.01 Regulation FD Disclosure On April 27, 2026, Westlake Corporation"

Regulation FD disclosure requires public companies to share important, market-moving information with everyone at the same time instead of tipping off analysts or large investors first. Think of it as making sure all players on a field hear the same announcement simultaneously; that fairness helps investors trust that stock prices reflect the same information and reduces the risk of sudden, unfair trading advantages or regulatory penalties for selective leaks.

forward-looking statements regulatory

"are forward-looking statements within the meaning of the U.S. securities laws"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

creditors’ committee financial

"final approval by the creditors’ committee and other conditions"

insolvency proceedings regulatory

"formal commencement of insolvency proceedings, final approval by the creditors’ committee"

A formal legal process used when a company cannot pay its debts, where a court oversees how the company’s assets and obligations are handled — either by reorganizing the business to keep it operating or by selling assets to pay creditors. For investors this matters because it determines who gets paid first and how much, often reducing or wiping out shareholders’ value while giving higher priority to lenders, and it sets the timeline and likelihood of any recovery.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What transaction did Westlake Corporation (WLK) disclose in this 8-K?

Westlake Corporation disclosed a non-binding letter of intent to acquire a polyvinyl chloride and vinyl chloride monomer production site in Wilhelmshaven, Germany, from VYNOVA Wilhelmshaven GmbH’s insolvency estate via its subsidiary Westlake Vinnolit GmbH & Co. KG.

Is Westlake Corporation’s (WLK) German PVC/VCM acquisition agreement binding?

The agreement is not yet binding. Westlake and its subsidiary signed a non-binding letter of intent, meaning the parties still must negotiate definitive documentation before any acquisition is finalized or legally enforceable.

What conditions must be met before Westlake (WLK) can acquire the Wilhelmshaven site?

Completion depends on negotiating definitive agreements, receiving necessary regulatory approvals, formal commencement of insolvency proceedings for VYNOVA Wilhelmshaven GmbH, final approval by the creditors’ committee, and satisfaction of other specified conditions.

How does Westlake (WLK) describe the risks around the Wilhelmshaven acquisition plan?

Westlake describes related statements as forward-looking and subject to significant risks and uncertainties, including the ability to secure regulatory approvals and how the insolvency proceedings are resolved, which could cause actual results to differ materially.

Does the Westlake (WLK) disclosure about the Wilhelmshaven site affect liability under Section 18?

The company states the information provided under this Regulation FD disclosure is furnished, not filed, so it is not deemed subject to Section 18 liability or automatically incorporated into other Securities Act or Exchange Act filings.

Which subsidiary of Westlake (WLK) is involved in the Wilhelmshaven letter of intent?

The wholly owned subsidiary involved is Westlake Vinnolit GmbH & Co. KG, which, together with Westlake Corporation, entered into the non-binding letter of intent with the preliminary insolvency administrator of VYNOVA Wilhelmshaven GmbH.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/01/2026 - 07:08 AM Learn about SEC filing dates

WESTLAKE CORP false 0001262823 0001262823 2026-04-27 2026-04-27 0001262823 us-gaap:CommonStockMember 2026-04-27 2026-04-27 0001262823 us-gaap:SeniorNotesMember 2026-04-27 2026-04-27

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): April 27, 2026

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, $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 April 27, 2026, Westlake Corporation (the “Company”) and Westlake Vinnolit GmbH & Co. KG, a wholly owned subsidiary of the Company, entered into a non-binding letter of intent with the preliminary insolvency administrator of VYNOVA Wilhelmshaven GmbH to acquire a polyvinyl chloride and vinyl chloride monomer production site located in Wilhelmshaven, Germany. The proposed transaction is subject to negotiation of definitive documentation, receipt of regulatory approvals, formal commencement of insolvency proceedings, final approval by the creditors’ committee and other conditions.

The information furnished pursuant to this Current Report on Form 8-K 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.

Cautionary Statement About Forward-Looking Statements

The statements in this Current Report on Form 8-K that are not historical facts, including statements regarding the anticipated timeframe for the execution of definitive agreements for, and the closing of, the transactions contemplated by the letter of intent, are forward-looking statements within the meaning of the U.S. securities laws. These forward-looking statements are subject to significant risks and uncertainties, many of which are beyond the Company’s control. Actual results could differ materially, based on factors including, but not limited to, the ability to secure regulatory approvals and the resolution of insolvency proceedings. For more detailed information about the factors that could cause actual results to differ materially, please refer to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, which was filed with the SEC on February 26, 2026.

2

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: May 1, 2026				By:		/s/ L. Benjamin Ederington
						L. Benjamin Ederington Executive Vice President, Legal and External Affairs

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Filing Exhibits & Attachments

4 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 4.1 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE 13.3 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 22.1 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 14.3 KB