Injection molds imported from China carry a 25 percent Section 301 tariff on top of the 3.1 percent base import duty, so a mold classified under HTSUS 8480.71.8045 lands with about 28.1 percent in duties before you pay a dollar of freight. That single line item, stacked with duty changes made through 2025 and 2026, is why more buyers are running the numbers on moving tooling closer to home.
This post lays out exactly which tariffs apply to a mold from China, what they cost in real dollars, and how to judge when transferring the tool actually pays for itself.
Key takeaways
- Plastic injection molds from China classify under HTSUS 8480.71.8045, which carries a 3.1 percent base duty plus a 25 percent Section 301 tariff reported under Chapter 99 subheading 9903.88.01.
- The 25 percent Section 301 duty on Chinese tooling has been in force since List 1 took effect on July 6, 2018, and it applies to the mold itself, not the parts the mold produces.
- On a 40,000 dollar mold, the base duty adds 1,240 dollars and the Section 301 tariff adds 10,000 dollars, for 11,240 dollars in duty before freight and broker fees.
- The Reshoring Initiative counted 244,940 reshoring and foreign direct investment jobs announced in the United States in 2024, with 88 percent in high tech or medium high tech sectors.
- Tariff stacking changes fast, so confirm the current combined rate with a licensed customs broker before you commit to a sourcing decision.
What tariffs actually apply to a mold from China
A plastic injection mold is a product in its own right when it crosses the border, separate from the parts it will run. United States Customs and Border Protection classifies a plastic injection mold under HTSUS subheading 8480.71.8045, described as molds for rubber or plastics of the injection or compression type, injection type.
CBP ruling NY N304145, issued May 21, 2019, states the position plainly. Products of China under 8480.71.8045 carry a 3.1 percent base duty and, unless specifically excluded, an additional 25 percent ad valorem Section 301 duty, reported at import under Chapter 99 subheading 9903.88.01. That Section 301 action on Chinese goods began with List 1 on July 6, 2018 and has stayed in place through the statutory four year review.
The mold is taxed, not the parts
This trips up new buyers. The 25 percent Section 301 duty hits the tooling when the physical mold is imported. If you leave the mold in China and import finished molded parts instead, those parts fall under their own HTS classification with their own duty treatment. Two different decisions, two different tariff outcomes.
| Item | Value |
|---|---|
| HTSUS classification for the mold | 8480.71.8045 |
| Base (Column 1 General) duty | 3.1 percent |
| Section 301 additional duty | 25 percent |
| Chapter 99 reporting subheading | 9903.88.01 |
| Section 301 List 1 effective date | July 6, 2018 |
What that costs in real dollars
Run the arithmetic on a mid range mold. Take a single cavity or small family tool with a landed value of 40,000 dollars at the port.
- Base duty at 3.1 percent: 1,240 dollars.
- Section 301 duty at 25 percent: 10,000 dollars.
- Total duty before freight, insurance, and broker fees: 11,240 dollars, roughly 28.1 percent of the mold value.
Scale that to a program with several tools. A set of five molds averaging 40,000 dollars each carries about 56,200 dollars in duty alone. That is real capital that never touches the quality of your part, and it lands as a one time hit the moment the tooling clears customs.
Watch the stack, not just Section 301
Section 301 is the durable, well documented duty on Chinese tooling. Since 2025 the United States has layered additional duties on many Chinese imports through separate authorities, and those rates have moved several times. Because the combined stack can change quarter to quarter, the honest answer is to confirm the current total with a licensed customs broker or your logistics provider against your specific HTS code on the day you import. Do not budget off a number you read six months ago.
When moving your tooling out of China pays off
Reshoring or nearshoring a mold makes sense when the duty, freight, inventory carry, and quality rework you avoid over the tool life beat the cost and downtime of the move. For a high volume program, the 25 percent duty and shipping on the tool are only the visible part. The hidden costs are long replenishment lead times, cash tied up in ocean freight and safety stock, and the expense of flying people to a supplier when a dimension drifts.
The broader shift is measurable. The Reshoring Initiative reported 244,940 reshoring and foreign direct investment jobs announced in 2024, the largest margin by which reshoring outpaced foreign direct investment since tracking began in 2010, with 88 percent of those jobs in high tech or medium high tech sectors. Government incentives, a skilled workforce, and proximity to market were the top cited reasons.
A simple way to frame the decision: add up the annual duty plus freight plus carrying cost you would avoid, then compare it against the one time cost to build or transfer the tool and requalify it. If the avoided cost recovers the move inside the remaining tool life, the move is usually worth it. Programs with steady, high annual volume clear that bar fastest.
How to move a mold without losing months
Transferring an existing tool is not just a shipping problem. Plan for these steps and the weeks they take.
- Confirm ownership and access. Verify in writing who owns the tool and the design data. Many overseas contracts leave the mold in the supplier’s possession, and release can stall a transfer.
- Assess condition before it ships. Get the shot count, last maintenance records, and steel and cavity condition. A tool near the end of its life may be cheaper to rebuild than to move.
- Handle export and logistics. Molds are heavy freight with their own documentation. Build in customs clearance time on both ends.
- Requalify at the new press. A moved tool is not proven until it runs. Plan trial shots through first article inspection against the drawings, and expect at least one iteration if samples miss on dimensions.
Industry lead times for a new offshore tool commonly run several months from purchase order to qualified first article, and a physical transfer of an existing tool typically runs on the order of two to four months once you include ownership sign off, freight, and requalification. Build those weeks into any production plan so you do not run your safety stock to zero.
Before you assume China is more expensive
Tariffs narrow the gap, they do not erase it in every case. For a low volume or highly complex tool, a capable China mold maker may still land cheaper even after the 25 percent duty, especially if the domestic quote reflects a tight tool room schedule. The right call depends on your annual volume, part complexity, tolerance band, and how much requalification risk you can absorb. Price the whole picture, duty included, not just the tool quote.
Frequently asked questions
What tariff applies to injection molds imported from China?
A plastic injection mold from China carries a 3.1 percent base duty plus a 25 percent Section 301 duty, for about 28.1 percent before freight. The Section 301 portion is reported under Chapter 99 subheading 9903.88.01.
What HTS code covers a plastic injection mold?
United States Customs classifies a plastic injection mold under HTSUS 8480.71.8045, molds for rubber or plastics of the injection type. Confirm the exact statistical suffix with your broker for your specific tool.
Does the 25 percent tariff apply to the mold or the parts it makes?
It applies to the physical mold when the tool is imported. Finished molded parts imported from China fall under their own HTS classification and duty treatment, which is a separate decision.
When does moving tooling out of China pay for itself?
When the annual duty, freight, and inventory carrying cost you avoid recovers the one time cost to build or transfer and requalify the tool within its remaining life. High volume, steady programs reach that break even fastest.
How long does it take to transfer a mold out of China?
Plan for roughly two to four months once you include ownership verification, condition assessment, export logistics, and requalification through first article inspection at the new press. Complex tools and failed first samples add time.
About the author
Brandon Henderson is President of MoldMinds and a Journeyman Tool and Die Maker with over fifteen years in custom injection molding. He has run tool rooms and managed tooling programs for Fortune 500 manufacturers, and MoldMinds helps buyers source, qualify, and manage offshore and China injection mold tooling. If you are weighing a sourcing or transfer decision, talk with the MoldMinds team.
Related reading: more from the MoldMinds blog and how MoldMinds works with buyers.
Sources: Office of the United States Trade Representative, Section 301 investigations, CBP ruling NY N304145, Reshoring Initiative, and MoldMaking Technology.
Featured image: Southampton Container Port Heavy Lift Cranes – geograph.org.uk – 2766113.jpg by Gillian Thomas, via Wikimedia Commons, CC BY-SA 2.0.
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