Vodafone Group and CK Hutchison Holdings have finalized the merger of their respective UK mobile businesses, Vodafone UK and Three UK, which was first announced in June 2023. The combined entity, now known as VodafoneThree, boasts a total of 29 million customers, making it a significant player in the UK's mobile market. Vodafone holds a 51% majority stake in the new company, with CK Hutchison retaining 49%.

This £16.5 billion deal (valued at approximately $19 billion at the time of the initial announcement) was completed without a cash consideration changing hands. Instead, the transaction involved a debt adjustment, with Vodafone UK contributing £4.3 billion and Three UK contributing £1.7 billion to the new company's initial net debt of £6 billion. The parent companies have also agreed to provide an additional £800 million in equity to support working capital requirements.

Both companies claim the merger is beneficial for customers, the country, and competition, promising to invest £11 billion over 10 years to build a best-in-class 5G standalone network. This ambitious plan aims to cover over 99% of the UK population with 5G standalone by 2034 and deliver up to a six-fold increase in average data speeds. Analysts like Kester Mann of CCS Insight believe VodafoneThree will have the assets to challenge rivals like BT/EE, while others, such as Paolo Pescatore, anticipate regulatory scrutiny despite industry consensus that the deal would be approved given the appetite for consolidation in the European market.

The merger consolidates the UK mobile market from four major operators to three, following a trend seen in Europe. While executives highlight the benefits, critics, including the UK trade union Unite, have expressed concerns about potential job losses and increased bills for consumers. Max Taylor has been appointed as the CEO of the new VodafoneThree, tasked with integrating two distinct network infrastructures and company cultures.