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π Diamond Conical Mold (Industrial Diamond Abrasive Molds)
π HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
π Part 1: Product Definition & Classification: What Exactly is a "Diamond Conical Mold"?
A Diamond Conical Mold typically refers to industrial tools or molds used in the manufacturing, testing, or processing of diamond-based products (such as synthetic diamond grit, polycrystalline diamond (PCD) tools, or diamond grinding wheels). These are not jewelry items but industrial consumables or precision tooling.
In international trade, they are classified based on their material and function: 1. Molds for Synthetic Diamond Production: If used specifically to create synthetic diamonds under high pressure/high temperature (HPHT), they are considered molds for metal or ceramic casting or molds for synthetic abrasives. 2. Diamond-Tipped Tools/Molds: If the mold itself is made of or lined with diamond/abrasives, it may fall under Abrasive Tools. 3. General Industrial Molds: If itβs a standard steel/ceramic mold used in the diamond process (not containing diamond itself), itβs classified as a General Industrial Mold.
β οΈ Key Distinction:
- If the product is purely a mold (empty cavity, made of steel, tungsten carbide, or graphite) β Chapter 82 or 84.
- If the product is a diamond-containing tool or abrasive material contained in a mold shape β Chapter 68 or 82.
- Most common scenario: A mold used to shape synthetic diamond blanks or PCD inserts β 8207.30 or 8480.
π¦ Part 2: HS Code Classification Details (2026 Latest Tariff Concordance)
| HS Code | Product Description | Application Scenario | Contains Diamond? |
|---|---|---|---|
| 8207.30.00.00 | Interchangeable tools for hand tools, machines, etc.: Molds for extrusion, drawing, or pressing of metal or glass (if used for diamond tool bodies) | Molds for shaping PCD tool blanks, diamond tool holders | β No (unless specified otherwise) |
| 8480.49.90.00 | Molds for metal casting (including die-casting), other than those of heading 84.80 | General industrial molds used in diamond tool manufacturing | β No |
| 8206.00.00.00 | Hand tools incorporating working elements of precious metals or hard metal (e.g., tungsten carbide) | Diamond-tipped molds or abrasive molds | β Yes (if diamond-coated) |
| 8208.30.00.00 | Knives and cutting blades for machines or mechanical appliances, of metal carbide | Diamond grinding molds or cutting inserts | β No |
| 6804.22.90.00 | Millstones, grindstones, grinding wheels, and similar artificial stones and articles with working surfaces of fused or sintered corundum, artificial abrasives or cermets, other than stone goods of heading 68.03 | Crucial: If the "mold" is actually a diamond abrasive block/grinding wheel shaped conically | β Yes (Diamond/PCD) |
| 8207.20.00.00 | Interchangeable tools for hand tools, machines, etc.: Drills for earth boring (if conical drill bits are considered molds/drills) | Conical diamond drill bits used as "molds" for penetration | β Yes |
π Critical Note:
- If the product is a mold made of steel/ceramic used to produce diamond tools β 8480.49.90.00 or 8480.71.00.00.
- If the product is a diamond abrasive tool (e.g., a conical grinding stone) β 6804.22.90.00.
- Misclassification Risk: Calling a diamond grinding wheel a "mold" can lead to errors. Always check if the product is a tool (uses abrasive) or a mold (shapes material).
π° Part 3: 2026 Latest Tariff Rate Details (Including Surtaxes & Policy Add-ons)
β Applicable Country: United States (US)
β Country of Origin: China (CN)
β Effective Date: From November 10, 2025 (and subsequent imports)
π― 1. 8480.49.90.00 ββ Molds for Metal Casting (General Industrial Mold)
| Item | Content |
|---|---|
| Base Tariff Rate | 3.4% (ad valorem) |
| USITC Surtax (Section 301) | +25% (from USITC Footnote 9903.88.01) |
| IEEPA Surtax | +10% (against Chinese/HK products, effective Nov 10, 2025) |
| Total Tariff Rate | ~38.4% (3.4% base + 25% + 10%) |
| Tax Calculation | CIF Value Γ 38.4% |
| De Minimis Eligibility | β No (deny_de_minimis) |
| Legal Path | IEEPA:9903.01.25 β USITC:8480.49.90.00 β FOOTNOTE:9903.88.01 |
π Explanation:
- Most general industrial molds from China are subject to Section 301 tariffs (25%) and IEEPA surcharges (10%).
- Total cost impact: High. Essential to verify if the mold is "for metal" or "for plastic" (plastic molds may have different rates).
π― 2. 6804.22.90.00 ββ Artificial Abrasive Stones (Diamond/PCD Grinding Tools)
| Item | Content |
|---|---|
| Base Tariff Rate | 3.4% (ad valorem) |
| USITC Surtax (Section 301) | +25% (if classified as "other abrasive articles" under 6804) |
| IEEPA Surtax | +10% |
| Total Tariff Rate | ~38.4% |
| De Minimis Eligibility | β No |
| Legal Path | IEEPA:9903.01.25 β USITC:6804.22.90.00 |
π Note:
- If the "conical mold" is actually a diamond grinding stone or polishing tool, it falls under Chapter 68.
- Same tariff burden: 25% + 10% surcharges apply.
π― 3. 8207.30.00.00 ββ Molds for Extrusion/Pressing (if used for diamond tool bodies)
| Item | Content |
|---|---|
| Base Tariff Rate | 3.4% (ad valorem) |
| USITC Surtax (Section 301) | +25% |
| IEEPA Surtax | +10% |
| Total Tariff Rate | ~38.4% |
| De Minimis Eligibility | β No |
π οΈ Part 4: Practical Customs Clearance Advice (Pitfall Avoidance Guide)
β 1. Preparation Checklist (Non-negotiable)
| Document | Required | Explanation |
|---|---|---|
| β Product Specifications | βοΈ | Material (Steel, Tungsten Carbide, Diamond-coated), Dimensions, Tolerance |
| β Usage Description | βοΈ | Is it a mold (shapes material) or a tool (abrades material)? |
| β Technical Drawings | βοΈ | To prove itβs a mold (e.g., cavity design) vs. a solid tool |
| β Certificate of Origin (CO) | βοΈ | If not from China, may qualify for preferential rates |
| β Commercial Invoice | βοΈ | Clearly state "Conical Mold for Industrial Diamond Tool Manufacturing" |
| β Photos | βοΈ | Clear images of the mold, including any markings or diamond layers |
β 2. Declaration Tips (Critical Mnemonic)
π₯ "Mold vs. Tool: Define Function, Avoid Surcharge Shock!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Empty Steel Mold | 8480.49.90.00 (Mold for Metal) |
Misdeclare as "Diamond Tool" β Higher scrutiny |
| Diamond-Coated Mold | 8207.30.00.00 or 6804.22.90.00 |
Call it "Plastic Mold" β Penalty for misclassification |
| PCD Insert (Shaped like Mold) | 6804.22.90.00 (Abrasive) |
Call it "Mold" β Delay in customs |
| Graphite Mold for HPHT | 8480.71.00.00 (Mold for Plastic/Rubber) or 8480.49 |
Incorrect HTS β 301 Surtax may still apply |
β 3. Special Cases
| Situation | Handling Advice |
|---|---|
| OEM Diamond Molds | Provide client design drawings to prove custom nature |
| Diamond-Embedded Molds | Must declare as Abrasive Article (6804), not general mold |
| Graphite Molds for Synthetic Diamond | Often classified under 8480.71 (Molds for plastic/rubber) or 8480.49 if for metal precursors |
| Sample Shipments | Not exempt from tariffs. De Minimis ($800) does not apply to Chinese-origin goods under IEEPA/Section 301 |
π Part 5: Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (CN Origin) | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 8480.49.90.00 or 6804.22.90.00 |
~38.4% | N/A | High surcharge due to Section 301 + IEEPA |
| π¨π³ China | 8480.49.90.00 |
3.4% (or lower) | N/A | Low tariff, no surcharge |
| πͺπΊ EU | 8480.49.90.00 |
0% | CE (if tool) | No extra surcharges for molds |
| π¦πΊ Australia | 8480.49.90.00 |
5% | N/A | Standard tariff |
| π―π΅ Japan | 8480.49.90.00 |
0% (under CPTPP) | N/A | Preferential if certified |
π Conclusion:
- USA is the most expensive market for diamond/conical molds from China due to 38.4% effective tariff.
- EU and Japan offer significant advantages (0% or low rates).
- Supply Chain Strategy: Consider sourcing molds from non-China origins (e.g., Vietnam, Thailand) to avoid US surcharges if targeting the US market.
π Part 6: Common Errors & Pitfalls (Lessons Learned)
β Error 1: Calling a diamond grinding stone a "mold"
π Consequence: Misclassification leads to audit, back-taxes, and penalties.
β
Fix: Declare as 6804.22.90.00 (Artificial Abrasive Stone).
β Error 2: Ignoring Section 301 applicability
π Consequence: Assuming 3.4% tariff β Surprise bill at customs.
β
Fix: Always add 25% + 10% for Chinese-origin goods to the US.
β Error 3: Declaring graphite molds as "plastic molds"
π Consequence: Graphite is not plastic. May be rejected or reclassified.
β
Fix: Use 8480.71.00.00 (Molds for Plastic/Rubber) or 8480.49 (Molds for Metal) based on usage.
β Error 4: Not declaring diamond content in coatings
π Consequence: If itβs a diamond-coated mold, it may be classified as an abrasive tool (8207/6804) with different rules.
β
Fix: Clearly state "Diamond-Coated Mold" in specifications.
π― Part 7: Conclusion: Precise Classification Saves Costs!
π― Remember the Golden Rule:
πΉ "Mold for Shaping? β 8480. Tool for Abrading? β 6804. Diamond Content? β Check Chapter 68/82."
πΉ "US Import? β Expect 38.4% Tariff. Non-US? β Check FTA Benefits."
π Pro Tip:
If your diamond conical mold is used in jewelry casting (not industrial diamond production), it may fall under 8480.41 (Molds for Metal) or even 8207.30. Always clarify the end-use.
π£ Immediate Action:
π Consult with a licensed customs broker.
πΈ Provide high-res photos + technical drawings.
π Apply for Advance Ruling if importing large volumes to the US.
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every percentage point saved is pure profit!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.