Group organization, strategy, and management

With regard to our Group organization, strategy, and management, please refer to the explanations in the 2025 combined management report (2025 Annual Report). From the Group’s point of view, the following significant events in the first three months of 2026 resulted in changes and/or additions.

Group organization

Corporate culture

In 2026, we further developed our corporate culture into “T‑Style.” While this entailed some adaptations to the existing Guiding Principles, our fundamental values as a company remain unchanged. Our six Guiding Principles are:

• Delight our customers
• We won’t stop (previously: Get things done)
• Act with respect & integrity
• One team, together (previously: Team together – team apart)
• I am T – count on me
• Stay curious and grow

Segment structure

Reassignment of Comfortcharge. As of January 1, 2026, Deutsche Telekom reassigned the responsibility for business and profit and loss for Comfortcharge GmbH, which is a provider of e-mobility charging infrastructure, from the Group Development operating segment to the Group Headquarters & Group Services segment. This restructuring will bundle Deutsche Telekomʼs mobility services. Prior-year comparatives have not been adjusted retrospectively for either of the segments affected.

Planned changes in the United States operating segment

Agreement on the acquisition of i3 Broadband in the United States. On April 24, 2026, T‑Mobile US entered into an agreement with an affiliate of Wren House to establish a joint venture that will acquire i3 Broadband, one of Wren House’s existing fiber portfolio companies. The transaction is subject to regulatory approvals as well as other customary closing conditions and is expected to be concluded in the second half of 2026. Upon closing, T‑Mobile US is expected to invest USD 0.7 billion (EUR 0.6 billion) to acquire a 50 % equity interest in the joint venture and substantially all existing residential fiber customers.

Agreements on the acquisition of GoNetspeed and Greenlight Networks in the United States. On April 25, 2026, T‑Mobile US entered into agreements with affiliates of Oak Hill to establish a joint venture that will acquire and combine GoNetspeed and Greenlight Networks, two of Oak Hill’s existing fiber portfolio companies. The transaction is subject to regulatory approvals as well as other customary closing conditions and is expected to be concluded in the first half of 2027. Upon closing, T‑Mobile US is expected to invest USD 2.0 billion (EUR 1.7 billion) to acquire a 50 % equity interest in the joint venture and substantially all existing residential fiber customers.

Management of the Group

Transition to postpaid accounts in the United States operating segment. Beginning with the first quarter of 2026, our United States operating segment (T‑Mobile US) reporting will transition from total number of postpaid and prepaid customers to total number of postpaid accounts. From T‑Mobile US’ perspective, this transition aligns to its long-held priority on growing high-value accounts, which they believe is the best reflection of value creation versus customers. Prior to the transition, as of December 31, 2025, our United States operating segment reporting included 142.4 million total postpaid and prepaid customers instead of 34.2 million postpaid accounts.

A postpaid account is generally defined as a billing account that generates revenue. Postpaid accounts generally consist of customers that are qualified for postpaid service utilizing phones, 5G broadband gateways, fiber connections, mobile internet devices (including tablets and hotspots), wearables, DIGITS and other connected devices (including SyncUP and IoT), where they generally pay after receiving service.

The reporting of our other operating segments remains unaffected by this. In the Germany and Europe operating segments, we continue to report customer numbers for mobile communications, fixed network, and broadband.

Change to the definition of service revenue. Our service revenues essentially comprise predictable and/or recurring revenues from Deutsche Telekom’s core activities. Since January 1, 2026, certain wholesale voice transit revenues have no longer been included in service revenues due to their unpredictable or non-recurring nature. Prior-year comparatives in both of the affected segments, Germany and Europe, were adjusted retrospectively.

Governance

The Supervisory Board resolved on March 23, 2026 to terminate Dr. Abdurazak Mudesir’s position as the Board member responsible for the Product and Technology Board department and to approve his termination agreement effective midnight on March 31, 2026. Dr. Christian Illek is temporarily assuming Dr. Mudesir’s duties alongside his role as Chief Financial Officer until a successor is found.

In accordance with the published agenda, on April 1, 2026, the Shareholders’ Meeting of Deutsche Telekom AG passed resolutions on, among other matters, the approval of the actions of the Board of Management and the Supervisory Board, the selection of the external auditor for the 2026 financial year, the cancellation of the 2022 Authorized Capital and the creation of the 2026 Authorized Capital, the change to § 13 of the Articles of Incorporation (remuneration of the Supervisory Board), and the amount of the dividend (EUR 1.00 per dividend-bearing no par value share; EUR 4.8 billion in total). The dividend was paid out in April 2026.