Sb(wB)/%≥

Impurity(wB)/%≤

As/Sb

Pb/Sb

Cu

Se

Sn

Cd

Bi

First Grade

60

0.8

0.25

0.01

0.005

0.003

0.005

0.003

Second Grade

50

0.8

0.30

0.01

0.005

0.003

0.005

0.003

Third Grade

35

0.9

0.35

0.005

0.003

0.002

0.005

0.003

Note:
1. There should be proper price reduction if the harmful elements exceed the standard
2. The oxide antimony ore can refer to the above specification and should be reduced the price    based on the Sb content.
3. Our company provides the technical service of antimony concentrating; treat with mine tailing and recycling. We would also like to cooperate on dealing with antimony mine tailing.
4. In addition, we can offer the technical service of deep processing and cooperation to process antimony raw material.
This standard is applicable for the antimony concentrates getting from mineral processing and antimony smelting.
(1) The moisture content in the concentrates should be less than 14% and also less than 8% during heating-period.
(2)Other impurities should not be mixed into the concentrates.
(3)Packing: The concentrates most have been delivered by container transport, packed with ton bag. The same grade can be classified as one lot.

Inspection Method.
The inspection carried out at the loading port is to determine the letter of credit amount. The inspection carried out by AHK, ALEX, SGS or CCIG at the port of discharge should be final for both parties of seller and buyer. The regular customer could be amortized by TT, according to inspecting by each other.
The others as per the international practice.