Westlake Chemical Partners LP

The 2025 Form 10-K, filed on March 4, 2026, contained a description of various legal proceedings in which we are involved, including environmental proceedings. See Note 12, "Commitments and Contingencies," to the unaudited consolidated financial statements within this Quarterly Report on Form 10-Q for an updated discussion of legal proceedings, which information is incorporated by reference herein.

Under the Omnibus Agreement, certain subsidiaries of Westlake Corporation ("Westlake") have agreed to indemnify the Partnership for certain environmental and other liabilities relating to OpCo's processing facilities and related assets that occurred or existed prior to August 4, 2014. Pursuant to the Services and Secondment Agreement, certain subsidiaries of Westlake have agreed to indemnify the Partnership for certain liabilities incurred in connection with the performance of Westlake's services under such agreement.

In addition to the matters described above, the Partnership is also involved in other legal proceedings incidental to the conduct of its business. After considering all relevant facts and circumstances, including applicable insurance and indemnification by Westlake, the Partnership does not believe that any of these legal proceedings will have a material adverse effect on its financial condition, results of operations or cash flows.