2006 Richmond, Dowans Electricity Scandal US$150 million (TSh172 billion).
In 2006, Tanzania faced a serious crisis in electricity supply and, as an emergency measure, Richmond was awarded a contract to supply generators to provide 100 megawatts at a cost of TShs 172 billion.
The generators failed to arrive on time and, when they did, they did not work as required. The pipeline was never built and the generators were provided by another company. Under part of the contract, however, the government agreed to pay some $137,000 a day regardless of the amount of electricity provided.
Opposition MPs began to smell a rat and the House of Assembly set up a Select Committee to investigate the whole saga under the chairmanship of the ruling CCM Kyela MP, Harrison Mwakyembe. The committee worked diligently and eventually came up with a 165-page report. Parliamentary findings showed the Prime Minister(Edward Lowassa) to be involved in awarding the contract to nonexisting US-based company, and the Prime Minister resigned. However, the Tanzanian government had to keep the contract and keep paying a non-existing company $137,000 US a day without any power being generated.
Also, President Kikwete has been blamed for choosing his friends to the cabinet, a result of which he has no power to condemn them for their irresponsibility. The example of two consecutive bomb blasts at Mbagala and Gongo la Mboto arm base respectively in 2009 and 2011 where General Mwamunyange as well as the defense minister, Mwinyi, were in charge, but they insisted that it was not their fault for the blast and denied to brief the country about the reason for the blasts. The President himself kept praising to the two officials that they are working to secure a country something that raised anger among the victims of blasts.
Cource: Wikipedia