If this is true - it is very naughty.

Here is China doing something very naughty:

http://money.cnn.com/2014/07/03/news/china-corn-espionage/index.html?hpt=hp_t4

However, China gave away the secrets of gun powder, the compass, paper money, printing,, how to do noodles, toilet paper, use of chopsticks, etc., etc.