Customs reference
Additional duty 21
The duty rate surcharge scale and how to fill boxes 44 and 47.
Additional duty under the Customs Code of Uzbekistan, Article 300¹. The scale: duty rate → surcharge, in rows "from X% to Y%" and "X% and more".
Below is how to fill boxes 44 and 47 in five cases: a 0% rate, a non-zero rate, a benefit, a rate reduced by an act, 0% with a benefit.