Roughly Processed Materials

🪨 Roughly Processed Materials (Natural Stone Blocks & Slabs)

🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategy
📌 I. Product Definition & Classification: What Exactly Are "Roughly Processed Materials"?

"Roughly Processed Materials" in the context of international trade typically refers to natural stone (marble, granite, sandstone, etc.) that has undergone initial cutting or shaping but lacks final finishing, polishing, or detailed carving. These materials are the intermediate raw materials for construction, architecture, and interior design.

In customs classification, the specific HS Code depends heavily on the stone type (Marble vs. Granite vs. Sandstone) and the specific form (blocks, slabs, or semi-finished shapes). The data provided highlights two main categories: 1. Marble & Tufa (Limestone family): Under Chapter 2515. 2. Granite & Other Common Stones: Under Chapter 2516. 3. Worked Stone Articles: Under Chapter 6802 (if specifically worked articles rather than raw stone).

⚠️ Key Distinction Point:
- If the stone is simply cut into slabs/blocks without further working (like polishing or intricate carving) →归入 2515.11 / 2515.20 / 2516.11 / 2516.20
- If the stone is a "work" (e.g., simple cut plates ready for installation) → May fall under 6802.23
- Material Matters: Marble and Granite have different base tariffs.

📦 II. HS Code Classification Details (2026 Latest Tariff Authority对照)

🔍 Important Note:
- 2515.11 and 2516.11 have a 0% Base Tariff, but attract heavy supplementary tariffs. - 2515.20 has a 3% Base Tariff. - 6802.23 is classified as a "worked article" rather than raw material, with a 3.7% Base Tariff.

💰 III. 2026 Latest Tariff Rate Breakdown (Including Supplementary Taxes & Policies)

✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Post-November 10, 2025 (including subsequent imports)

🎯 1. 2515.11.00.00 — Roughly Worked Marble/Travertine

📌 Explanation:
- "0% Base" might look attractive, but the 35% total is prohibitive. - The 25% is the standard "Trade War" tariff on Chinese stone products. - The 10% is a specific legislative addition (Section 122).

🎯 2. 2515.20.00.00 — Roughly Worked Calcium Carbonate Stone (Limestone/Tufa)

📌 Note:
- Limestone and Tufa fall under a different sub-heading than Marble, hence the higher base rate (3% vs 0%). - Total cost is higher than Marble due to the base tariff.

🎯 3. 2516.11.00.00 — Roughly Worked Granite

📌 Key Insight:
- Granite is classified under Chapter 2516. - Like Marble, it benefits from a 0% base but carries the same 35% total burden.

🎯 4. 2516.20.10.00 — Roughly Worked Sandstone

🎯 5. 6802.23.00.00 — Worked Stone Articles (Simple Cut)

📌 Warning:
- This code is for "Worked Stone Articles," which implies a higher level of processing than raw blocks. - It has the highest total tax rate (38.7%) due to the higher base tariff (3.7%).

🛠️ IV. Customs Clearance Practical Advice (Field Avoidance Guide)

✅ 1. Required Documentation Checklist (Mandatory)

✅ 2. Declaration Tips (Critical Keywords)

🔥 “Stone Type Specific, Processing Level Clear, Avoid 'General Stone' Ambiguity!”

✅ 3. Special Circumstances Handling

🌍 V. Global Market Customs Comparison (2026 Latest)

📌 Conclusion:
- USA is the most expensive market for Chinese stone products due to the 35-38.7% effective tariff rate. - China Origin is critical: Any stone claimed as "Vietnamese" or "Indian" must have valid Country of Origin certificates to avoid these tariffs.

📌 VI. Common Errors & Pitfalls (Blood-Teaching Lessons)

❌ Error 1: Declaring "Worked Stone Countertops" as "Rough Blocks" (2515.11)
👉 Consequence: If detected by CBP, it is reclassified to 6802.23 (38.7%) → Under-declaration penalty + Back taxes!

❌ Error 2: Mixing Granite and Marble in one shipment without separate declarations
👉 Consequence: Customs may inspect each item individually, causing delays and storage fees.

❌ Error 3: Using vague terms like "Natural Stone"
👉 Consequence: Customs cannot determine the correct HS code → Audit and potential seizure.

❌ Error 4: Ignoring Section 122 Tariff
👉 Consequence: Even with 0% base, the 10% Section 122 is mandatory for many stone imports from China.

✅ Correct Approach:

"Roughly Worked Marble Blocks, Unpolished, Cut to Size, Origin: China, HS: 2515.11.00.00"

🎯 VII. Conclusion: Professional Declaration, Cost Control, and Efficiency!

🎯 Remember the Mantra:

🔹 "Stone Type First, Processing Level Second, Tariff Third!"
🔹 "Marble/Granite: 35%, Limestone: 38.7%, Worked: 38.7%!"
🔹 "Don't Under-declare, Or You Pay Double!"

📌 Pro Tip:
If your stone is quarried in Vietnam, India, or Brazil, ensure you have valid Certificates of Origin to potentially claim lower tariffs or exemptions.
Consider Advance Rulings (Pre-classification) for large shipments to avoid customs holds.

📣 Immediate Action:

📞 Contact a licensed customs broker + Provide Stone Sample Photos + Apply for HS Code Pre-classification
🚀 Clear the borders, save costs, and secure your supply chain!

✨ Professional Clearance Starts with Precise Classification!
💼 Every Dollar of Tax Saved is Pure Profit!