Registered, Verifiable, Documented

Buying carbon from another continent is a trust decision. Here is exactly who we are, where we work, and what we will put in writing for your order.

UNGM registered vendor · ID 1274320

Registered Export Entity

Xiamen Yeli New Materials Co., Ltd (Chinese: 厦门椰砺新材料有限公司 is registered with the market regulator in Xiamen, China, where our export office operates. Registration documents, export paperwork and bank details are available to verified buyers on request.

Office: Room 2604-4, No.6 Hubin East Road, Siming District, Xiamen City, Fujian Province, China.

United Nations Procurement — UNGM Registered Vendor

Xiamen Yeli New Materials Co., Ltd (YELI Carbon) is a registered vendor of the United Nations Global Marketplace (UNGM) — the shared procurement platform of the United Nations system. Buyers can verify our registration against the vendor record below.

  • Vendor name: Xiamen Yeli New Material Co., Ltd.
  • UNGM Vendor ID: 1274320
  • Registration status: Basic Level Registered Vendor
  • Primary UNSPSC classification: 47101501 — Activated Carbon Equipment / Water Treatment Supply

UNGM registration means our company details, business classification and product categories are already entered in the vendor file that UN agencies and their implementing partners use when sourcing. In practice that removes the slowest part of a first order from China: supplier due diligence has already been completed and can be checked independently against Vendor ID 1274320.

The registration covers the same product family we manufacture for mining and water treatment — coconut-shell granular activated carbon for gold CIP/CIL recovery (6×12 and 8×16 mesh, iodine 1000–1300 mg/g, hardness ≥98%), plus granular, powdered and extruded carbons for drinking water, process water and gas treatment. A Certificate of Analysis is issued for every batch.

Production Base in Longyan, Fujian

Our production base sits in Longyan, Fujian — 20+ years in activated carbon production. Because buyers often want proof before money moves, we offer:

  • Live video factory tours arranged within 24 hours of your request
  • On-site visits for serious buyers (Xiamen and Longyan are both in Fujian)
  • Factory photos and videos on request — production, packing, loading

Quality, Documented Per Batch

  • COA with every batch — iodine, hardness, moisture, ash and particle size for the exact lot you receive
  • Retained samples from every production batch for traceability
  • Third-party inspection supported — SGS, Intertek, Bureau Veritas or an accredited lab of your choice, at origin
  • Trial samples — sample bags at cost, shipped in days, before you commit to container volume
No golden samples, no generic certificates. Every figure we quote is traceable to a batch, and we welcome independent verification.

Quality Control & Testing

Gold mining activated carbon is bought on data, not adjectives. Iodine, hardness, density, moisture, ash and particle size are tested in our own QC laboratory on every batch; the gold-specific indicators — how fast the carbon loads gold (R-value, 52–58% of equilibrium loading within 2 hours) and how much it can hold (K-value, 8–12 kg Au/t in high-grade circuits) — are measured in our own QC laboratory per GB/T 32992—2016 and reported alongside the batch COA on request. That is the standard an operating CIL or CIP plant needs before it commits to a container.

What is testedMethodReported
Iodine adsorption valueGB/T 12496.8 / ASTM D4607On the batch COA
Hardness (ball-pan) and abrasion resistanceGB/T 12496.6 / ASTM D3802On the batch COA
Apparent densityGB/T 12496.1 / ASTM D2854On the batch COA
Moisture (as packed) and ash contentGB/T 12496.4 / GB/T 12496.3On the batch COA
Particle size distributionGB/T 12496.2 / ASTM D2862On the batch COA
R-value (gold adsorption rate) and K-value (equilibrium gold loading capacity)GB/T 32992—2016Reported on the batch COA

Production follows an ISO 9001-style quality management system with documented procedures and batch traceability; formal ISO 9001 certification is in progress, and we will describe it as certified only once it is granted.

Watch the QC laboratory and packing line — with the full English transcript, so you can see how a batch is tested and bagged before you buy.

How We Work

  1. Inquiry — tell us your application, spec and destination port.
  2. Quotation & sample — spec sheet, price and trial sample within 24 hours.
  3. Verify — video tour, factory visit or third-party inspection.
  4. Order & payment — PI with T/T or L/C terms; confirmed details in writing.
  5. Production & QC — batch test, COA issued, loading photos taken.
  6. Shipping — export documentation and freight support from Xiamen.

New to importing from China? Our supplier verification checklist shows exactly what to check before you send money, and the factory-direct buying guide covers the full process.

Talk to the Factory Directly

WhatsApp +86 136 0090 6330 — ask for a video tour, a COA sample or a quotation. We reply within 24 hours.

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