Take one screw: a Chinese factory performs ninety percent of the work, it ships to Taiwan for the final threading and a new box — can it be labeled Made in Taiwan on export to the US? No. And the price of the wrong answer has been rising on both sides of the strait at once: Taiwan Customs prosecutes false origin marking at export, and US Customs pursues evasion on entry. Country of origin was never a geography question about the last port — it is a manufacturing question about where the product became itself.
The test: substantial transformation, not a stopover
The universal logic is substantial transformation: a good acquires origin in the place where processing gives it a new name, new character or new use. What matters is whether the thing that came out is a different article from what went in — fabric sewn into garments, components assembled into a machine with a new function. Conversely, merely passing through Taiwan changes nothing. Note also that origin and tariff classification are frequently blended in conversation and are in fact two independent determinations: the code sets the rate, origin sets whose treatment applies.
Simple processing does not count: the three common gambles
The recurring error is treating the following as “processed in Taiwan”:
- Repacking and splitting: bulk into retail packs, a Taiwanese company’s box
- Relabeling: applying your brand or a Made in Taiwan sticker
- Trivial assembly: screwing, plugging, bagging — nothing that changes the product’s nature
All three are simple processing. Taiwan’s customs authority has explicit rulings that they do not constitute substantial transformation, and declaring such goods as Taiwanese at export is false origin marking — penalized in Taiwan. The US side is harsher: such goods fall into EAPA evasion territory, and a finding that Taiwan was a detour around China-targeted measures brings back duties and penalties down on the importer, with the whole supply chain’s credibility as collateral damage.
The three-document proof pack
Origin is a claim that lives on evidence. When questioned, “it was made in Taiwan” is worth nothing without:
- The origin declaration: the exporter’s formal statement for the shipment — the baseline customs document
- Process documentation: which operations, on what equipment, how many hours — proving the processing had the depth to transform
- The BOM: where every component came from and its share — proving the Taiwan stage was not surface work
Build these per product model as routine filing, not as a scramble after a query. How the US side actually investigates transshipment is covered in our Section 301 article — that piece is about enforcement; this one is about making your claim stand before anyone comes asking.
Where SKYCARGO fits
Before shipping, SKYCARGO INC checks your origin claim for consistency: invoice, package marking and origin declaration telling the same story, process documentation and BOM producible. Individual substantial-transformation calls are legal judgments — take them to compliance counsel; we keep the logistics and documentation side solid so the origin you claim survives scrutiny at both customs. B2B shipments, talk to us or contact us directly. (Personal parcels: our sister service Shiptw.)
Origin determinations follow current Taiwan Customs and CBP law and case rulings. Reference only; consult compliance counsel for specific cases.
