Alpek and Controladora Alpek held Extraordinary Shareholders’ Meetings

Monterrey, N.L., Mexico. November 25, 2025. — Alpek, S.A.B. de C.V. (“Alpek” or “the Company”) and Controladora Alpek, S.A.B. de C.V. (“Controladora Alpek”) held General Extraordinary Shareholders’ Meetings earlier today. During the meetings, the Chairman of the Shareholders’ Meeting presented a proposal to merge Controladora Alpek into Alpek.

Controladora Alpek is a Shareholder of Alpek, with its shares trading on the Mexican Stock Exchange since April 7, 2025. The main asset of Controladora Alpek consists of shares representing Alpek’s capital stock.

Having successfully secured shareholder approval of the above-mentioned transaction, Alpek will proceed with the registration and publication of the agreements from today’s meetings, as required under applicable Mexican law. The merger will become effective following the completion of these processes. As a result, Controladora Alpek shareholders will become direct shareholders of Alpek. For this purpose, an exchange ratio of 0.309933698216403 shares of Alpek for each share of Controladora Alpek was approved, based on the fairness opinions of independent experts. Details regarding the mechanism for the subsequent exchange of shares will be announced at a later date.

During the Shareholders’ Meeting, Shareholders also approved the cancellation of shares in Treasury, and to take the necessary resolutions.