Natural Stone (Including Slate) and Its Products

🏗️ Natural Stone (Including Slate) and Its Products

🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 Part 1: Product Definition & Classification: What Exactly Is "Natural Stone"?

Natural stone, including marble, travertine, granite, porphyry, basalt, sandstone, and slate, is a critical raw material in construction, monumental works, and interior design. In international trade, it is strictly divided based on material composition, specific gravity, and degree of processing.

1. Calcareous Stone (Marble/Travertine):
Defined by an apparent specific gravity of 2.5 or more. Includes crude, roughly trimmed, or sawn blocks/slabs.

2. Igneous/Metamorphic/Sedimentary Stone (Granite/Sandstone/etc.):
Includes granite, porphyry, basalt, sandstone, etc. Also covers "other monumental or building stone."

3. Worked Stone & Articles:
Includes tiles, cubes (mosaics), slabs, and artificially colored granules/chippings/powder. Excludes slate products classified under 6801.

⚠️ Key Distinction Point:
- Unprocessed/Roughly Trimmed: Blocks/slabs only. No specific shape other than rectangular. → Chapter 25
- Worked/Finished: Tiles, mosaics, decorative articles, polished slabs with specific dimensions. → Chapter 68
- Slate: If for roofing/paving, often 6801. If for other uses, check 6802.

📦 Part 2: HS Code Classification Details (2026 Latest Tariff Authority Comparison)

🔍 Key Reminder:
- Chapter 25 (2515/2516): Applies to stone that is only cut into blocks/slabs. No further shaping, polishing, or cutting into specific shapes (like tiles <7cm).
- Chapter 68 (6802): Applies to stone that has been worked (cut into tiles, mosaics, slabs for specific use, or crushed).
- Slate: Slate for roofing/paving is usually 6801. Slate for other works (e.g., tablets) may fall under 6802.

💰 Part 3: 2026 Latest Tariff Rate Details (Including Additional Duties)

✅ Applicable Country: USA (US)
✅ Origin: China (CN)
✅ Effective Date: 2025-11-10 onwards (including subsequent imports)

🎯 1. 2515.11.00.00 —— Marble & Travertine: Crude or Roughly Trimmed

📌 Explanation:
- The 25% additional tariff is applied under the US Trade Act of 1974, Section 301, targeting Chinese-origin stone products to protect domestic quarrying industries. - Base rate is 0%, but the 25% penalty makes it expensive. - No de minimis exemption: Even small shipments are subject to this duty.

🎯 2. 2515.20.00.00 —— Other Calcareous Stone (Alabaster, etc.)

📌 Note:
- Alabaster and other calcareous stones not classified as marble/travertine under 2515.11 are exempt from the 301 additional duty. - This is a strategic loophole: If your stone is alabaster or specific limestone not classified as marble, the tariff is 0%.

🎯 3. 2516.11.00.00 —— Granite: Crude or Roughly Trimmed

📌 Explanation:
- Granite is heavily targeted. 25% duty applies to crude/rough granite blocks. - Same logic as marble: Protects US granite producers (e.g., Vermont, Georgia quarries).

🎯 4. 2516.90.00.60 —— Other Monumental/Building Stone

📌 Note:
- Sandstone, basalt, porphyry, and other "other" stones are exempt from the 301 additional duty. - This is a significant cost advantage if your product can be classified under "other" rather than granite/marble.

🎯 5. 6802.10.00.00 —— Worked Stone: Tiles/Cubes < 7cm & Granules

📌 Note:
- Mosaic cubes, tiles, and crushed stone/powder are exempt from the 301 duty. - Strategy: If you produce mosaic tiles or crushed stone, the tariff is 0%.

🎯 6. 6802.99.00.50 —— Worked Stone: Quartzite Slabs

📌 Note:
- Worked quartzite slabs are exempt from the 301 duty. - Important: Only applies to quartzite. Marble/granite slabs that are "worked" (e.g., polished, cut to size) may still be subject to duty depending on HS code interpretation. However, the provided data shows 0% for this specific code.

🛠️ Part 4: Customs Clearance Practical Advice (Pitfall Avoidance Guide)

✅ 1. Required Documentation Checklist (All Necessary)

✅ 2. Declaration Tips (Key Rules)

🔥 "Rough Blocks = Ch25, Worked Goods = Ch68. Be Precise!"

✅ 3. Special Case Handling

🌍 Part 5: Global Market Clearance Comparison (2026 Latest)

📌 Conclusion:
- USA is the highest-cost market for marble and granite due to the 25% Section 301 tariff.
- Strategy: If targeting USA, consider importing quartzite, sandstone, alabaster, or mosaics (0% duty).
- Alternative: Source from Vietnam, Italy, or India (check local tariffs) to avoid US origin penalties.

📌 Part 6: Common Errors & Pitfall Guide (Blood & Tears Lessons)

❌ Error 1: Declaring "Worked Marble Tiles" as "Marble Blocks" (2515.11.00.00)
👉 Consequence: 25% duty applied incorrectly, but if caught as misclassification, penalties + back taxes. Actually, tiles are 0%, so this is a wrong declaration that overpays tax.
(Wait, if you declare as blocks but they are tiles, you pay 25%. If you declare correctly as tiles, you pay 0%. So error is overpaying.)

❌ Error 2: Declaring "Quartzite Slabs" as "Granite Slabs" (2516.11.00.00)
👉 Consequence: 25% duty instead of 0%. Cost increase by 25%!

❌ Error 3: Not providing Specific Gravity Test for "Calcareous Stone"
👉 Consequence: Customs may reclassify under 2515.20.00.00 (0%) or 2515.11.00.00 (25%) based on guess. Provide test report!

❌ Error 4: Using vague descriptions like "Stone Decor"
👉 Consequence: Customs delay, request for more info, possible inspection. Be specific!

✅ Correct Practice:

"Granite Blocks, Roughly Trimmed, Origin China, HS 2516.11.00.00, Subject to 25% Section 301 Duty"
"Quartzite Slabs, Polished, HS 6802.99.00.50, 0% Duty"

🎯 Part 7: Conclusion: Precise Classification Saves 25%

🎯 Key Takeaway:

🔹 "Marble & Granite = 25% Duty. Quartzite, Alabaster, Mosaics, Other Stones = 0% Duty."
🔹 "Crude Blocks = Ch25. Worked Tiles/Slabs = Ch68. Check HS Code First!"

📌 Pro Tip:
- If your product is Quartzite, Sandstone, Basalt, or Alabaster, you can avoid the 25% duty entirely.
- If you are importing Marble/Granite, budget for 25% additional tariff.
- Pre-Ruling: Apply for an Advance Ruling from US CBP to confirm HS Code and duty rate.

📣 Immediate Action:

📞 Contact a licensed customs broker.
📄 Provide mineralogical test reports to prove material type.
🚀 Optimize your HS Code to save 25%!

✨ Professional Clearance Starts with Accurate Classification!
💼 Every dollar of duty saved is profit earned!