The rate is per country
There is no single forced labor rate. Each named economy carries its own, either 10% or 12.5%. Five of them are capped net of the Column 1 rate, so the forced labor duty is reduced by whatever ordinary duty the line already pays, and can be absorbed entirely. China's stacks on the Section 301 duty it already pays.
Annex II is attributed by country
Of the 4,164 exemption keys, 2,176 exempt a classification from every origin and 1,988 name specific countries. That is why a line can be exempt from one origin and dutiable from another, and why screening by classification alone gets the answer wrong.
Section 232 does not stack
1,005 provisions across nine covered lists are excluded: steel, aluminum and copper and their derivatives, automobiles and parts, medium and heavy duty vehicles and parts, buses, timber and lumber. A line pays Section 232 or the forced labor duty, never both. It does stack on ordinary Column 1 duty.
Reported, not forecast
Every national dollar figure here is twelve complete months of Census imports for consumption, priced line by line against the rule set. No growth factors are applied anywhere, so there is no trend error to defend. That is why these figures can be shown at ten digits when a forward projection cannot.
Two assumptions, named
Census carries no preference claim, so in the national figures Canada and Mexico are priced on the share of value that did not enter free under USMCA in 2024, and CAFTA-DR textile lines from the six member countries are priced at zero. Both are flagged on the line where they bite. Your own figures use the rate as written.
972 lines that are a range
U.S. note 16(c) carves a derivative article out only where the metal is at least 15% of its weight, for articles outside chapters 72, 73, 74 and 76. No trade dataset carries weights, so 972 classifications hold $33.2 billion of duty that turns on a test nobody can run nationally. Those lines are marked conditional rather than carved out.