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Organic Potassium(K)

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Natural Potassium Magnesium Sulphate  (BIO-KMS) EOS/NOP
Natural Potassium Magnesium Sulphate  (BIO-KMS) EOS/NOP

Natural Potassium Magnesium Sulphate (BIO-KMS) EOS/NOP

Basic Information:

Product Name: Natural Potassium Magnesium Sulphate

Chemical Formula: K2SO4•(MgSO4)m•nH2O, m=1 to 2, n=0 to 6

HS CODE: 3105909000

Place of Origin: China

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Product Description:

Potassium Magnesium Sulphate is white or off-white crystal powder or granule. It is a kind of natural multi-element potassium fertilizer. In addition to potassium, sulfur and magnesium, it also contains calcium, silicon, boron, iron, zinc and other elements. It is weakly alkaline, especially suitable for acidic soil and can be used as base fertilizer, topdressing and foliar fertilizer. Besides, it is suitable for many crops such as rice, corn, peanut, tobacco, potato, fruit, vegetable, etc.


  • A pure natural multi-element potassium fertilizer for all crops especially in organic agriculture.
  • It is easily absorbed by crops and high utilization rate because of pure natural liquid raw material and no any chemical reaction when producing.
  • 100% natural water soluble fertilizer because the raw material comes from the liquid mines instead of solid mines.
  • Provide the comprehensive ingredients for crops because of the secondary elements of magnesium comparing to traditional potassium sulphate.
  • It can be used as base fertilizer, topdressing and foliar fertilizer and the raw material of potassium fertilizer for producing compound and BB fertilizer.

Guaranteed Specifications:GB/T 20934-2018


Pure Natural Soluble Grade Potassium Magnesium Sulphate


White Crystal Powder

White Granule


White Crystal Powder

White Granule

K2O Content


Size (2-4mm)



Mg Content




S Content



0.020% max

Water insoluble Matter Content



0.0050% max

Chloride Content (Cl-)



0.0010% max

Sodium Content (Na+)



0.0500% max

Free Moisture(H2O)



0.0005% max


We effectively solved the problem of the caking of fertilizer by improving the appearance and quality of packages such as the thickness of inner bags, the tightness of bags and loading capacity of outer bags.

We can provide all kinds of customized packages according to customer’s requirements.

  • 25 Kg/50 Kg PP laminated woven bags
  • 500Kg/600 Kg/1000 Kg/1200 Kg bulk bags
  • 20-26 MT loose or on pallet in containers

Production Process:

  • Potassium magnesium sulfate can be produced by harvesting salt lake intercrystalline brine to the salt field for natural spreading, dissolving potassium mixed salt in water, evaporating and crystallization, two transformations (de-sodium, de-chlorination), separation and dehydration, drying and granulation, automatic packaging.
  • The natural granule can be made by the corresponding powder using double roller extrusion granulator.

For the production flowchart of Natural Potassium Magnesium Sulphate (BIO-KMS), Please refer to the attachment.

JS International Industrial Limited, was established in 2006 in Changsha City, Hunan province. Now we have developed an integrated business platform regarding chemical products such as fertilizers, feed additives and rare metal superfine powder materials.

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