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.

Establishment of a joint venture with AT&T and Verizon in the United States. On September 14, 2026, T‑Mobile US entered into definitive agreements and formed a joint venture with AT&T and Verizon. The joint venture aims to end wireless dead zones in the United States, including in rural areas, by pooling certain spectrum resources of the three partners to increase capacity and help satellite providers reach more customers through a unified platform. T‑Mobile US expects to license certain intellectual property to the joint venture and to provide access to certain spectrum licenses to satellite service providers who contract with the joint venture. The establishment of the joint venture has no material impact on the consolidated financial statements.

Planned changes in the operating segments

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 was completed on October 1, 2026. All necessary regulatory approvals had been duly granted and all other customary closing conditions were met. Upon closing, T‑Mobile US invested 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. The revenues generated from the residential fiber customers acquired in the transaction will be recognized at T‑Mobile US under service revenues. The related costs paid for the provision of network services will be recognized under goods and services purchased.

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 to acquire and combine GoNetspeed and Greenlight Networks, two of Oak Hill’s existing fiber portfolio companies. The transaction is subject to approval by the authorities as well as other customary closing conditions, and is expected to close in the first half of 2027. Upon closing, T‑Mobile US is expected to invest USD 2.0 billion (EUR 1.8 billion) to acquire a 50 % equity interest in the joint venture and substantially all existing residential fiber customers.

Agreement on the acquisition of Fiberhost and Inea in Poland. On August 17, 2026, Deutsche Telekom agreed to acquire 100 % of Fiberhost, a Polish open-access fixed-network operator, together with 100 % of Inea, a retail broadband and TV service provider, from a fund managed by Macquarie Asset Management. The enterprise value amounts to around EUR 1.0 billion. In addition to a cash component, the agreed purchase price is expected to include the assumption of the companies’ existing external bank financing. The transaction is subject to approval by the authorities as well as other closing conditions, and is expected to close in the fourth quarter of 2026 or the first quarter of 2027. Upon closing, the Group’s subsidiary T‑Mobile Polska will acquire Inea’s over 300 thousand broadband customers and Fiberhost’s fiber network passing over 1.4 million homes, thereby strengthening T‑Mobile Polska’s transformation into a fully convergent telecommunications provider in Poland.