"The US will take punitive measures against any country that fails to reduce oil imports from Iran. These countries include China."
China will never put up with this nonsense, China will do what's in its national interest and that's importing Iranian oil (that's more important to them than a nuclear armed Iran in close proximity to their country). If you ever find that China succumbs to a reduction of oil from Iran, please post and I'll send you a gift certificate for a dinner at Olive Garden.