What the stamp should show
The mark is a bordered box with the IPPC symbol on the left. To its right: TW, a hyphen, the code the national plant protection organisation of Taiwan gave the producer or treatment provider, and the treatment code. Producer code formats differ by country, so check the shape of the code against other marks from Taiwan rather than against a fixed pattern.
IPPC | TW-[producer code] | HT (layout only; the producer code is a placeholder)
Who authorises the mark in Taiwan
We could not confirm an IPPC country page for Taiwan when we last reviewed this sheet, so we do not name an authority here. The ISO code in the mark remains TW.
US trade with Taiwan
Most wood packaging arrives under goods, so goods trade is a rough guide to how much of it you may see. Taiwan ranks 4th of the 60 countries on this site by 2025 US imports. Imports rose 161.5% between 2021 and 2025, and US exports to Taiwan were $54.8 billion in 2025.
| Year | US imports from Taiwan | US exports to Taiwan |
|---|---|---|
| 2021 | $77 billion | $36.8 billion |
| 2022 | $91.7 billion | $43.9 billion |
| 2023 | $87.8 billion | $40 billion |
| 2024 | $116.3 billion | $42.5 billion |
| 2025 | $201.4 billion | $54.8 billion |
U.S. trade in goods by country, annual totals, USD millions, not seasonally adjusted (Census basis). Source: US Census Bureau, trade in goods by country.
On arrival in the US or Canada
Wood packaging from Taiwan entering the United States is regulated under 7 CFR 319.40-3; entering Canada, under CFIA directive D-98-08. Both rely on the ISPM 15 treatment and mark. Once the goods are unpacked, surplus pallets from Taiwan are yours to reuse, sell or recycle, unless they belong to a rental pool.