美国与台湾签署贸易协定，关税降至15%，台湾承诺采购840亿美元商品

An official fact sheet from the U.S. Trade Representative directly outlines the new U.S.–Taiwan trade agreement and describes tariff reductions alongside quantitative purchase commitments, which is the most authoritative confirmation. Multiple reputable outlets consistently report the specific figures—tariffs lowered to 15% and a $84 billion purchase commitment—and an industry group corroborates sectoral benefits consistent with such terms. A respected policy analysis source discusses the agreement’s contours and does not contradict these headline elements. While the fact sheet summary provided does not quote the exact numbers, the convergence of a primary government document confirming these types of provisions and multiple independent reports specifying the 15% tariff level and $84 billion commitment makes the statement very likely true. The main caveat is that these figures may apply to defined categories and/or a multi‑year period, so the claim is somewhat simplified but not misleading.