Cummins and the Beijing Public Transportation Corporation (BJPT) today welcomed US President George W. Bush and US Secretary of State Colin Powell for an introduction to one of the world's largest compressed natural gas bus fleets. Cummins, through its joint venture Cummins Westport Inc., has partnered with the BJPT to provide compressed natural gas buses operating in Beijing. President Bush visited this partnership as - in the words of a Cummins statement - 'a demonstration of the cooperation needed to improve the environment in China and throughout the world'.