It really depends on what you consider "important". As a commodity? Oil and silver are the largest exports. As a manufactured product? Cars, trucks, Plasma TVs, cellular phones, and refrigerators could count as that.
Qatar's number one export is petroleum (oil ).
Canada's number one export is Wheat.
Oil fuels - the number one export for the US in 2011, by value, was gasoline and diesel fuel.
Paperclips
Oil
bananas
tobacco
47 is New Mexicos state number. 47 is New Mexicos state number.
Our number one export is cranberries.
lumber
Clothes
wheat