1901 Mai Jing; Fine powder, coarse granules, coarse powder, starch, or other food products refined from wheat that are not listed, do not contain cocoa or have a fully defatted cocoa content of less than 40% by weight; Food products listed in items 04.01 to 04.04, excluding cocoa or containing less than 5% by weight of fully defatted cocoa, not listed in other items: HS code chinese tariffs