Kenya's President Triggers Diplomatic Tension by Announcing Tanzanian Oil Refinery Without Consultation
Nairobi, 6 May 2026
President Ruto’s surprise announcement of a billion-dollar oil refinery in Tanzania’s Tanga port sparked unprecedented public confrontation with President Hassan, who revealed she knew nothing about the project. The diplomatic blunder overshadowed a major state visit aimed at boosting regional trade partnerships worth millions of pounds annually.
Public Confrontation Exposes Diplomatic Breakdown
The diplomatic crisis erupted during President Ruto’s state visit to Dar es Salaam on 4 May 2026, when President Samia Suluhu Hassan publicly confronted him at the Kenya-Tanzania Business Forum [1][2][3]. Hassan revealed she had directly challenged Ruto in private discussions, stating: ‘While we were speaking inside, I confronted Ruto and asked him, Why did you go ahead and announce a refinery in Tanga without my knowledge? He will have to explain why he made that announcement’ [2]. The Tanzanian president’s unusually direct public criticism highlighted the severity of the diplomatic misstep, particularly as it occurred during what was intended to be a relationship-building visit between the two East African Community partners [3].
Timeline of the Controversial Announcement
The controversy stems from Ruto’s announcement of the joint oil refinery project at an infrastructure forum in Nairobi on 19 April 2026, made alongside Nigerian billionaire Aliko Dangote [3]. The announcement came during the week of 28 April 2026, following a meeting with East African leaders including Uganda’s President Yoweri Museveni [1]. According to the plan, the refinery would be located in Tanga, Tanzania, and connect to Mombasa, Kenya, via pipeline, designed to process oil from regional sources including South Sudan and the Democratic Republic of the Congo [1]. Dangote pledged to complete the refinery within four to five years, with plans to mirror his Lagos facility’s capacity of 650,000 barrels per day [1][4].
Ruto’s Defence and Regional Context
Facing criticism, Ruto attempted to justify his announcement by explaining that the refinery proposal emerged from regional discussions with leaders like Uganda’s Museveni about utilising natural resources for East African industrial growth [2][3]. He acknowledged the diplomatic error, stating: ‘I’ve been informed that my announcement about the Tanga oil refinery may not have gone down well. Had I known, I might have said it would be built in Mombasa’ [2][3]. The project forms part of broader regional energy infrastructure development, as Tanga serves as the terminal point for the 1,443-kilometre East African Crude Oil Pipeline from Uganda, with 79% of the pipeline completed as of December 2025 [4].
Economic Stakes and Trade Relations
Despite the diplomatic tension, both leaders proceeded with signing eight key agreements covering energy, transport, agriculture, maritime cooperation, and standards alignment during the visit [2][3]. The bilateral trade relationship between Kenya and Tanzania reached $860.3 million (£676.5 million) in 2025, representing approximately 40% of all intra-East African Community commerce [2][3]. The leaders set an ambitious deadline of 30 June 2026 to eliminate all remaining non-tariff barriers that have hindered cross-border commerce [2][3]. The proposed Tanga refinery, positioned as a multi-billion-dollar investment, aims to reduce East African dependence on refined petroleum imports from the Middle East and Mediterranean, which currently expose the region to significant price volatility [4]. However, as of 4 May 2026, the project remains in the discussion stage with no formal timeline, financing structure, or regulatory framework announced [4].