FAQ — quoting, lead time, samples, shipping
The questions buyers ask before ordering, grouped by quotation, specification, samples and shipping.
Learn moreBuyer guides
A reference library for mineral powder selection: what talc, GCC, dolomite, magnesia and magnesium sulfates are, mesh-to-micron conversion, and head-to-head comparisons. 11 guides.
How to choose a grade
A framework: pick by application, then by the properties that move the result.
Learn moreWhat is magnesium oxide
CCM, DBM and electro-fused magnesia across the calcination spectrum.
Learn moreWhat is magnesium sulfate monohydrate
Kieserite — the slow-release, chloride-free Mg+S source for soil.
Learn moreWhat is magnesium sulfate heptahydrate
Epsom salt — fully water-soluble Mg for foliar and fertigation.
Learn moreStill deciding between grades?
Send us your application and target properties — we will shortlist two or three grades with TDS and samples.