UPM - The split of Kymmene Corporation ("UPM") was completed on October 31, 2026. The company previously announced on April 29, 2026, that the split plan had been approved.

According to the split plan, all assets and liabilities related to the plywood business of UPM and UPM, or those that primarily serve the plywood business of UPM, will be transferred to WISA Group Plc ("WISA Group"), which will be established as part of the split.

With the completion of the split, Nasdaq Helsinki Oy ( Nasdaq Helsinki ) has approved the listing and trading of WISA Group shares on Nasdaq Helsinki's regulated market. WISA Group shares will begin trading on November 2, 2026, under the trading code “ WISA ” ( ISIN code: FI4000603345 ). UPM shares will continue to trade on Nasdaq Helsinki's regulated market. Following the completion of the split, the new ISIN code for UPM shares will be FI4000603337, while the stock trading code will remain “ UPM ”.

The new shares of WISA Group issued as part of the split will be credited to the account of UPM shareholders around November 2, 2026. Shareholders of UPM who receive the split consideration shares will be able to trade WISA Group stocks from November 2, 2026 onwards. This split will not affect the total number of shares of UPM.

As part of the split consideration, each share of UPM held by a shareholder of UPM will entitle them to 1 new share of WISA Group. The treasury shares held by UPM will not be issued as split consideration shares.

UPM, Media Relations

UPM

UPM is a materials solutions company that drives innovation in products and the entire value chain by leveraging a wide range of renewable fibers, advanced materials, decarbonization solutions, and communication paper products. Its sustainable practices have been recognized by third parties, including EcoVadis and the Dow Jones Sustainability Index. The company operates globally, with approximately 15,100 employees and annual sales of around 9.7 billion euros. Its shares are listed on NASDAQ Helsinki Ltd.

UPM —— We bring freshness to everyday life

For more information: upm.com

Important Information

The dissemination of this announcement in certain jurisdictions may be subject to legal restrictions. The information contained herein does not constitute an offer to sell any shares of UPM or WISA in any jurisdiction, nor an invitation to purchase any shares. None of the securities mentioned in this document have been, nor will they be, registered in the United States under the revised Securities Act of 1933 (the “Securities Act”), unless an exemption applies or the transaction is not subject to the registration requirements of the Securities Act. Such securities may not be issued, sold, or delivered directly or indirectly within the United States or to persons within the United States. There will be no public offering of securities within the United States. None of the securities described in this document have been approved or disapproved by the U.S. Securities and Exchange Commission, any state securities commission, or other U.S. regulatory authorities. These authorities have not expressed any opinion or given any endorsement regarding the merits of the split of UPM, or the accuracy or sufficiency of this announcement and the Finnish-language prospectus for the split and listing issued on July 16, 2026, and supplemented on August 17, 2026, September 18, 2026, and October 28, 2026 (or its English translations). Any contrary statement constitutes a criminal offense in the United States.

Forward-looking Statements

This announcement contains “forward-looking statements” based on current plans, estimates, forecasts, and expectations, and does not constitute a guarantee of future performance. Terms such as “intend”, “assess”, “expect”, “may”, “plan”, “believe”, “estimate”, and other expressions related to future development or trends, which are not based on historical facts, constitute forward-looking information. This information is based on certain expectations and assumptions that may seem reasonable at present but may not be correct. Shareholders should not rely on these forward-looking statements. Numerous factors could lead to significant differences between the actual operating results or financial conditions of UPM or WISA Group and those expressed or implied in the forward-looking statements. Except as required by applicable laws and regulations, UPM, WISA Group and its any affiliates, consultants, representatives, or any other persons shall not have the obligation to review, confirm, or publicly release any updates or revisions to these forward-looking statements to reflect events or circumstances that occur after the date of this announcement.

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