WESTLAKE CORP 8-K

What Happened
Westlake Corporation announced on January 5, 2026 that it completed its previously announced acquisition of the global compounding solutions businesses of the ACI/Perplastic Group. The company furnished a press release about the closing as Exhibit 99.1 to its Form 8-K filed January 6, 2026. The Form 8-K also includes the company’s Regulation FD statement clarifying that the furnished information is not “filed” for purposes of Section 18 of the Exchange Act and is not incorporated by reference into other filings unless expressly stated.

Key Details

• Completion announced: January 5, 2026 (press release furnished on Form 8-K dated January 6, 2026).
• Acquired assets: the global compounding solutions businesses of the ACI/Perplastic Group.
• Filing note: press release furnished as Exhibit 99.1; the 8-K does not convert that furnished information into “filed” SEC disclosure under Section 18.
• Administrative: Form 8-K signed by L. Benjamin Ederington, Executive VP, Legal and External Affairs (dated January 6, 2026).

Why It Matters
For investors, the material fact is that the acquisition has closed — meaning Westlake has taken ownership of ACI/Perplastic’s global compounding solutions operations. The 8-K furnishes the company’s public announcement but does not provide purchase price or detailed financial terms; investors should review the press release (Exhibit 99.1) and subsequent company disclosures for information on the transaction’s financial impact, integration plans, or effects on revenue and margins. The Regulation FD notice clarifies the limited SEC filing status of the furnished release.