According to the passage, I think there are something need to be improved about the companies in China. Although I am a Chinese, I know that China just copies most of things but not creates something. Due to this fact , Mexico government cancelled the contact. This is really a negative effect  for the economic development of China. We can also find another problem:The only countries that will even entertain Chinese offers are those with poor domestic legal systems and lots of corruption since in the western world. The Chinese companies would be liable to being sued by the Western companies that built and patented the original products which the Chinese stole without paying .

http://online.wsj.com/articles/mexico-pulls-high-speed-train-contract-from-china-led-group-1415345475