Transparency notifications by

BlackRock, Inc.

In accordance with article 14, § 1 of the law of 2 May 2007 on the disclosure of major holdings, Umicore was recently notified:

By BlackRock, Inc. that as a result of the acquisition of Global Infrastructure Partners there has been a change to BlackRock’s group Structure. Upon the close of the transaction BlackRock, Inc. was renamed BlackRock Finance, Inc. and a NewCo became the publicly listed company with the name BlackRock, Inc.By BlackRock, Inc. that it has successively crossed the legal threshold of 3% for the direct voting rights and equivalent financial instruments, downwards on 2 October 2024, and then upwards on 3 October 2024. The total holding of direct voting rights and equivalent financial instruments of BlackRock, Inc. now stands at 3.12%.

Summary of the moves:

BlackRock, Inc. Date on which the threshold was crossedDate of notificationDirect voting rights after the transactionEquivalent financial instruments after the transactionTotal1 October 20243 October 20242.68 %0.48 %3.16 %2 October 20244 October 2024 2.52 %0.46 %2.98 %3 October 20248 October 20242.66 %0.46 %3.12 %

Notifications from BlackRock, Inc.:

The most recent notification contains the following information:

Date of notification: 8 October 2024Date on which the threshold is crossed: 3 October 2024Threshold of direct voting rights + equivalent financial instruments crossed upwards: 3%Notification by: BlackRock, Inc.Denominator: 246,400,000Reason for notification: Acquisition or disposal of voting securities or voting rights The previous recent notification contains the following information:

Date of notification: 4 October 2024Date on which the threshold is crossed: 2 October 2024Threshold of direct voting rights + equivalent financial instruments crossed downwards: 3%Notification by: BlackRock, Inc.Denominator: 246,400,000Reason for notification: Acquisition or disposal of voting securities or voting rights The previous notification contains the following information:

Date of notification: 3 October 2024Date on which the threshold is crossed: 1 October 2024Notification by: BlackRock, Inc.Denominator: 246,400,000Reason for notification: Acquisition or disposal of the control of an undertaking that holds a participating interest in an issuer The chain of control has been described at the end of the notification and can be found here.

For more information

Investor Relations

Caroline Kerremans +32 2 227 72 21 caroline.kerremans@umicore.comEva Behaeghe +32 2 227 70 68 eva.behaeghe@umicore.comBenoit Mathieu +32 2 227 73 72 benoit.mathieu@umicore.com

About Umicore

Umicore is a circular materials technology Group. It focuses on application areas where its expertise in materials science, chemistry and metallurgy make a real difference. Its activities are organized in four business groups: Battery Materials, Catalysis, Recycling and Specialty Materials. Each business group is divided into market-focused business units offering materials and solutions that are at the cutting edge of new technological developments and essential to everyday life.

Umicore generates the majority of its revenues from and dedicates most of its R&D efforts to clean mobility materials and recycling. Umicore’s overriding goal of sustainable value creation is based on an ambition to develop, produce and recycle materials in a way that fulfils its mission: Materials for a better life.

Umicore’s industrial and commercial operations as well as R&D activities are located across the world to best serve its global customer base with around 12,000 employees. The Group generated revenues (excluding metal) of € 1.8 billion (turnover of € 7.4 billion) in the first half year of 2024.

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