
Premium calcium carbonate
from our own production.
Polymers from the same supplier.
Kantor Materials produces the KC Series — high-whiteness ground calcium carbonate, coated and uncoated — through our vertically integrated Vietnamese operation. China-origin engineering and commodity polymers come from the same supplier. One relationship, both sides of your formulation.
Every material we supply.
Matched grades, current pricing, and documentation — whether you're buying our mineral filler, engineering grades, or commodity resin.

Our engineering polymers go into parts that must not fail.
Validated in our own production lines — 60,000 MT/yr of compounding capacity and over 2 million finished goods manufactured annually using our materials. When we match a grade for your application, we're matching against what we already know works.
Tier 1 OEM clients supplied by our compounding operations
Three ways to buy.
How you go from what you need to a first order depends on what you are buying. Our minerals are proven on a sample. Our engineering polymers are proven on your line, with our engineers. Our commodity polymers are proven on specification and documents.
You qualify it on your own line.
A filler cannot be qualified from a datasheet — so we send the material, and you decide after you test it yourself.
Match the grade
Tell us your application, or answer two questions in the grade selector. We match you to KC-4, KC-6, KC-10, or KC-17 by particle size — the whiteness and chemistry are the same across all four grades.
Get a free sample
Under 1 tonne, free, dispatched within 48 hours — with the technical data sheet and a certificate of analysis for that lot.
Qualify it on your own line
Run the sample on your own equipment, against the grade you use today. Decide only after you see the results.
Place your first order
One 20-foot container (24 tonnes) minimum, at the same per-tonne price as large volumes. FOB Haiphong; 30% deposit by bank transfer, 70% against the bill of lading.
We qualify it with you, on your line.
An engineering compound is qualified in your part, not on a datasheet — so we sample first, and adjust the compound with you until your part passes.
Send us the grade you run today
Name your current grade — Zytel, Ultramid, Bayblend, or any brand you run today — and the part it goes into. Within 24 hours you get the closest matching grade from our catalog, with an honest assessment of where it differs.
Get a free sample — up to 100 kg
Enough for a lab test first, then a full trial on your production line. Free samples in this industry are usually just a few kilograms — we send up to 100 kg, because a decision this important needs a real trial.
Co-engineer until your part qualifies
If the closest catalog grade does not pass your trial, our engineers adjust the compound — and we send another sample — until your part qualifies. You commit only after it passes.
Start recurring supply
The qualified compound, produced in our own compounding operations — with the technical data sheet and a certificate of analysis for every lot.
You decide on specification and documents.
A known resin is switched on specification and verified documents, not a physical trial — so we answer the question and check the documents.
Ask your question
A grade match across the Chinese market, a landed cost to your port, an HS code or duty rate — whatever you need to decide.
Get a verified answer within 24 hours
With the documents checked: the certificate of analysis against the technical data sheet, the Form E against the HS code, and the FOB value and origin against the invoice.
Source through us when you are ready
Supplier selection, quality control, documents generated correctly at the source, and logistics. You pay only when we source your order — no contract, no exclusivity.
The samples are free. The technical answers are free. We earn from the material we ship, not from advice.

What we don't promise
We produce minerals, compound engineering polymers, and source commodity resin. Here is what each of those commitments cannot guarantee.
We match grades. We don’t promise the first candidate grade passes.
A specification match is a starting point, not a production guarantee — the proof happens on your line, with your data. For engineering polymers, our engineers adjust the formulation until your part qualifies, and you commit only after it passes.
We verify documents. We don’t eliminate customs risk.
We check for HS code mismatches, Form E errors, and cross-document inconsistencies before shipping. But customs authorities make final decisions, and regulations change without notice.
We tell you when we don’t know.
If we haven’t shipped a grade before, we say so. If a spec match looks marginal, we flag it. If the pricing doesn’t justify the switching cost, we’ll tell you that too.
The gap between a datasheet and a production floor is real. Our job is to close it with better information and the honesty to tell you when we can't.
Our free newsletter for polymer buyers — grade substitution analysis and trade-policy developments across the markets we serve.
Ask anything about our materials.
Filler specs. Grade equivalents. Pricing. Document verification. Alternatives to your current supplier.
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