U.S. imports of Semichemical Woodpulp (HS 470500) totaled $10.7M in August 2026, imported from 3 countries.
Importers of Semichemical Woodpulp paid $30K in duties in August 2026, an average duty rate of 0.28% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Semichemical Woodpulp imports of $10.7M in August 2026 ran 29% above the year-to-date monthly average of $8.3M.
Last updated: August 2026 dataProduced by partially softening wood chips with mild chemical treatment before mechanical refining, semichemical pulp occupies the processing middle ground between purely mechanical and fully chemical grades. It is the dominant furnish for corrugating medium — the fluted inner layer of corrugated containerboard — where its stiffness-to-cost ratio is difficult to match. The single US tariff line 4705000000 covers all semichemical woodpulp regardless of species or bleaching level. Canada is the leading supplier to the US, with Sweden and Norway also among the top sources, reflecting North American and Scandinavian integrated packaging-industry supply chains.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
408 import shipments a month
Neutral sulfite semichemical (NSSC) is the predominant process, using sodium sulfite and sodium carbonate to partially delignify chips before disk refining. For HTS purposes, the process variant does not affect classification — all semichemical pulp (regardless of whether NSSC, cold soda, or another hybrid method is used) falls under 4705000000, provided it is genuinely a combination of chemical pretreatment and mechanical refining.
CBP may request mill process documentation showing both the chemical pretreatment stage (cooking conditions, chemical charge) and the subsequent mechanical refining step. A pulp that undergoes only mechanical processing classifies under chapter 47's mechanical pulp headings, while one fully cooked to fiber separation is a chemical pulp. The hybrid nature of semichemical pulp must be supported by technical mill records.
Subheading 1 of 1 in heading 4705
Subheading 470500 · $10.7M of $10.7M
Trade Directory
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ImportsExports
Imports
$10.7MYoY · free account
Exports
$792KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $99.2M of Semichemical Woodpulp and exported $8.9M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 4705000000 | Woodpulp by Mechanical&chemical Pulping Processes | $10.7M | 0.28% | 9.28% | $30K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4705000000 | Woodpulp by Mechanical&chemical Pulping Processes | $792K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Canada and Sweden together supply 97% of it.
customs district
destination
entry
rate provision · imports
90.7% enters free of duty; duty collected equals 0.28% of imports for consumption.