Lesotho has built a world-standard network of dams, the biggest of which is the Katse dam. Construction companies all over the world wanted to be the ones to undertake the project, and many were prepared to go to great lengths to win. Even to the extent of bribing Lesotho officials. One Mosotho official who understood the scheme early on was Masupha Sole. He's now in prison serving a 15-year term.
Throughout the whole ordeal, the integrity of the Lesotho government shone through, and caught Impregilo, Lahmeyer International, Acres International and others unawares. They were charged with bribery. The two latter companies paid R10 m and R15 m respectively. Impregilo's case is ongoing, as it tries to appeal Lesotho's right to try it for bribery. "Sole’s conviction and the strong and independent stance taken by the court against a senior government official is a good showing of a commitment to the rule of law and of tackling corruption by the Lesotho Government [Source].