Suppliers with verified business licenses
Audited Supplier 
Items |
Specification |
| Assay | 99.0-101.0% |
| Water | 11.0-13.0% |
| Sulphate salt | 0.015% max |
| Oxalate salt | 0.03% max |
| Alkalinity | 0.2% max |
| Readily carbonisable substance | pass |
| Chloride | 0.005% max |
| Transparence and coulor | pass |
| Heavy metal(as Pb) | 10 ppm max |
| Arsenic (As) | 1 ppm max |
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}