A sensitive list is the set of products a party to a trade agreement excludes from liberalisation or subjects to slower or partial treatment — smaller cuts, longer staging, a residual duty, or outright exclusion. The category exists only within particular agreements: nothing central defines a sensitive list or determines what may go on one, and the contents are the outcome of negotiation between the parties. Two agreements involving the same country will commonly carry different lists, and a product treated as sensitive in one may be fully liberalised in another. The operative document is the agreement’s own schedule or annex, which names the products by tariff line and states the treatment.
Why this entry carries no source list. The concept generalises; the definition does not. What this term means for your shipment is set by the particular trade agreement’s own text — its origin protocol, its annexes, its tariff schedules — and two agreements can use the same word differently. There is no central authority to cite, and citing one agreement would imply a generality that does not exist. The operative document is the one governing your trade, and it is what a customs authority will read.