I'm not quite sure what you mean by this, but most of the popcorn consumed around the world is grown in the U.S. Popcorn is part of our history and culture...you can read about the connection throughout the Web site.

In South America, kernels of popcorn found in burial grounds in the coastal deserts of North Chile were so well preserved they would still pop even though they were 1,000 years old. A little further North, Aztec Indians in the 16th century used popcorn in their ceremonies; young women danced a “popcorn dance” and wore garlands of popcorn in their hair.

Aside from enjoying it's taste, I'm not sure about the connection to China. But if you find more in your research, please let me know!