From the Pudget Sound Business Journal:
It may surprise you to know what Washington state's biggest export to China is these days. Airplanes? Apples? Software? Wine?
The biggest export in volume terms is the oldest and most low-tech farm product imaginable: high-quality hay for dairy cows.
The reason — rising incomes that make consumer items such as milk, cheese and ice cream affordable — explains a lot about what's going on in Asia. It also points to the growing opportunity for U.S. companies to do business there.