On the Record · Westlake

Westlake acquisitions, on the record

The businesses Westlake bought and sold, as its annual reports describe them, with the cash it reported paying for acquisitions each year and every deal filing since 2016.

Deals its annual reports describe

Business	Deal	When	Value
LACC, LLC ( Word for word“On November 12, 2019, we completed the acquisition of an additional 34.8% of the membership interests in LACC, LLC ("LACC") from Lotte Chemical USA Corporation, a subsidiary of Lotte Chemical Corporation ("Lotte"), for approximately $817 million (the "Transaction").” 10-K for 2023	acquisition	On November 12, 2019	approximately $817 million
Boral Target Companies Word for word“On October 1, 2021, we completed the acquisition of the Boral Target Companies.” 10-K for 2023	acquisition	On October 1, 2021	—
LASCO Fittings, Inc. ("LASCO") Word for word“The total consideration was $277 million.” 10-K for 2023	acquisition	—	$277 million
DX Acquisition Corp. ("Dimex") Word for word“The total consideration was $172 million.” 10-K for 2023	acquisition	—	$172 million
the global epoxy business of Hexion Inc. ("Westlake Epoxy") Word for word“On February 1, 2022, we completed the acquisition of the global epoxy business of Hexion Inc. ("Westlake Epoxy") for a total consideration of $1,207 million.” 10-K for 2023	acquisition	On February 1, 2022	a total consideration of $1,207 million
additional 34.8% of the membership interests in LACC, LLC Word for word“On November 12, 2019, we completed the acquisition of an additional 34.8% of the membership interests in LACC, LLC ("LACC") from Lotte Chemical USA Corporation, a subsidiary of Lotte Chemical Corporation ("Lotte"), for approximately $817 million (the "Transaction").” 10-K for 2024	acquisition	On November 12, 2019	approximately $817 million
additional 3.2% membership interest in LACC Word for word“On March 15, 2022, the Company completed the acquisition of an additional 3.2% membership interest in LACC from Lotte for approximately $89 million.” 10-K for 2024	acquisition	On March 15, 2022	approximately $89 million
LASCO Fittings, Inc. Word for word“The total consideration was $277 million.” 10-K for 2024	acquisition	—	$277 million
remaining 50% interest in RS Cogen, LLC Word for word“Effective October 31, 2022, the Company acquired the remaining 50 % interest in RS Cogen.” 10-K for 2024	acquisition	Effective October 31, 2022	—
ACI/Perplastic Group Word for word“On January 5, 2026, we completed the acquisition of the ACI/Perplastic Group (collectively, "ACI"), a global compounding solutions businesses, for a preliminary purchase price of approximately €92.4 million, subject to certain adjustments.” 10-K for 2025	acquisition	On January 5, 2026	approximately €92.4 million
Axiall Corporation Word for word“In 2016, we completed the acquisition of Axiall Corporation ("Axiall"), a manufacturer and international marketer of chemicals and building products with manufacturing sites in North America, for purchase consideration of approximately $2.5 billion.” 10-K for 2025	acquisition	In 2016	approximately $2.5 billion
Boral Limited's North American building products businesses Word for word“In 2021, we completed the acquisition of Boral Limited's North American building products businesses in roofing; siding; trim; and shutters; decorative stone; and windows for total consideration of approximately $2.1 billion.” 10-K for 2025	acquisition	In 2021	approximately $2.1 billion
global epoxy business of Hexion Inc. Word for word“In 2022, we completed the acquisition of the global epoxy business of Hexion Inc. ("Westlake Epoxy") for total consideration of approximately $1.2 billion.” 10-K for 2025	acquisition	In 2022	approximately $1.2 billion

As filedReported in the company's financial data (XBRL), each linked to its filing
Fiscal year ended	Cash paid for acquisitions (net of cash acquired)	Goodwill from acquisitions
2016-12-31	$2.44 billion	$888 million
2017-12-31	$13 million	—
2018-12-31	$0	—
2019-12-31	$314 million	—
2020-12-31	$0	—
2021-12-31	$2.55 billion	$943 million
2022-12-31	$1.2 billion	$124 million
2023-12-31	$0	—
2024-12-31	$0	—

Deal filings since 2016

2026-04-06 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2025-11-05 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2022-06-09 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2022-02-01 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
2021-11-24 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-10-01 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
2021-08-19 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-08-06 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2021-06-21 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2020-06-12 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2020-06-10 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2019-07-17 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2019-07-11 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2018-07-26 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2017-11-28 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2017-11-14 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2016-09-07 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2016-08-31 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
2016-08-24 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2016-08-10 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
2016-06-14 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement

Read from Westlake’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-26. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.