Fertilizer Raw Materials Supplier in China

Buyer starting point

Choose raw materials by nutrient, form and application route

The range has 5 macro-nutrients, 6 secondary nutrients, 14 micro-nutrients in sulphate and chelated forms, and 4 organic materials. Standard options include 25 kg, 50 kg and 1,250 kg packaging, with TDS, current batch COA and SDS available for procurement review.

For blending Screen phosphates, sulphates, nitrates and borates when you formulate bulk blends, compound fertilizers or single-nutrient products.
For soluble routes Compare EDTA/EDDHA chelates and finished water-soluble fertilizers for foliar, drip and hydroponic formulations.
For a usable quotation Send the product, target grade or assay, powder or granule form, annual volume, destination and packaging. Final assays come from the batch COA.

29 products4 nutrient groups

Fertilizer raw materials in multiple colors

Group 1 · Macro-nutrients

Macro-nutrients: N · P · K sources

Five nitrogen, phosphorus and potassium raw materials for base fertilization, bulk blending and fertigation programs.

N 21%Ammonium Sulphate

Ammonium Sulphate

(NH4)2SO4 crystalline nitrogen-sulphur source, N 21%, S 24%.

N 21%S 24%Crystal

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P2O5 61%MAP 12-61-0

MAP 12-61-0

Fully water-soluble monoammonium phosphate, N 12%, P2O5 61%.

12-61-0Water-solubleP source

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P2O5 52%MKP 0-52-34

MKP 0-52-34

Monopotassium phosphate 0-52-34, chloride-free P-K source for fertigation.

0-52-34Cl-freeFertigation

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K2O 50-52%Potassium Sulphate (SOP)

Potassium Sulphate (SOP)

Water-soluble SOP, K2O 50-52%, S 17-18%, low chloride.

K2O 50%+S 17%Low Cl

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K2O 46%Potassium Nitrate (NOP)

Potassium Nitrate (NOP)

KNO3 13.5-0-46, fully soluble nitrate potassium for fruiting stages.

13.5-0-46Cl≤0.2%Crystal

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Group 2 · Secondary nutrients

Secondary nutrients: Mg · Si · Ca sources

Six magnesium, silicon and calcium raw materials, from sulphates and kieserite to EDTA chelates and soluble silicon.

MgO 16-16.5%Magnesium Sulphate

Magnesium Sulphate

MgSO4·7H2O crystal and 2-4 mm granular magnesium-sulphur source.

MgO 16.5%S 13%Epsom

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MgO 25-27%Kieserite

Kieserite

MgSO4·H2O monohydrate, MgO up to 27%, powder or 2-5 mm granular.

MgO 27%S 21%Granular

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Mg 6%EDTA-Mg-6

EDTA-Mg-6

Chelated magnesium, Mg 6%, pH 6-8, fully water-soluble.

EDTAMg 6%pH 6-8

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Si sourceSoluble Silicon Fertilizer

Soluble Silicon Fertilizer

Water-soluble silicate fertilizer strengthening cell walls and stress tolerance.

SiWater-solubleAnti-stress

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CaO 26%Calcium Ammonium Nitrate

Calcium Ammonium Nitrate

Water-soluble CAN, N 15.5%, CaO 26-27%, for calcium nutrition programs.

N 15.5%CaO 26%Soluble

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Ca 10%EDTA-Ca-10

EDTA-Ca-10

Chelated calcium, Ca 10%, pH 6-7.5, for soluble calcium programs.

EDTACa 10%pH 6-7.5

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Group 3 · Micro-nutrients

Micro-nutrients: Fe · B · Zn · Mn · Cu · Mo

Fourteen iron, boron, zinc, manganese, copper and molybdenum raw materials in sulphate and EDTA/EDDHA chelated forms.

Fe 19-20%Ferrous Sulphate

Ferrous Sulphate

FeSO4·7H2O green crystal iron source, 98%.

Fe 19%+98%Crystal

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Fe 13%EDTA-Fe-13

EDTA-Fe-13

Chelated iron, Fe 13%, stable pH 4-6, for fertigation programs.

EDTAFe 13%Soluble

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Fe 6%EDDHA-Fe-6

EDDHA-Fe-6

EDDHA iron chelate, Fe 6%, effective in calcareous soils pH 7-9.

EDDHAFe 6%High pH

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B2O3 36-48%Borax

Borax

Sodium borate decahydrate and pentahydrate boron sources.

B 11-15%GranularPowder

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B 17%Boric Acid

Boric Acid

H3BO3, B2O3 56%, B 17%, granular or powder boron source.

B 17%B2O3 56%H3BO3

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B 21%SoluBor (DOT)

SoluBor (DOT)

Disodium octaborate tetrahydrate, B2O3 67%, fully soluble foliar boron.

B 21%B2O3 67%Foliar

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Zn 33-35%Zinc Sulphate

Zinc Sulphate

ZnSO4 monohydrate and heptahydrate, powder or granular zinc source.

Zn 35%98%Granular

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Zn 15%EDTA-Zn-15

EDTA-Zn-15

Chelated zinc, Zn 15%, pH 6.5-7.5, fully water-soluble powder.

EDTAZn 15%Soluble

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Mn 31-32%Manganese Sulphate

Manganese Sulphate

MnSO4·H2O pale-pink manganese source, Mn 31-32%.

Mn 31-32%PowderCAS 10034-96-5

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Mn 13%EDTA-Mn-13

EDTA-Mn-13

Chelated manganese, Mn 13%, pH 6-8, for foliar and fertigation.

EDTAMn 13%pH 6-8

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Cu 25%Copper Sulphate

Copper Sulphate

CuSO4·5H2O blue crystal copper source, Cu 25%.

Cu 25%Blue crystal98%

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Cu 15%EDTA-Cu-15

EDTA-Cu-15

Chelated copper, Cu 15%, pH 6-7, fully water-soluble.

EDTACu 15%Soluble

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Mo 54%Ammonium Molybdate

Ammonium Molybdate

(NH4)6Mo7O24·4H2O, Mo ≥54%, for seed treatment and foliar programs.

Mo 54%SeedFoliar

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Mo 39%Sodium Molybdate

Sodium Molybdate

Na2MoO4·2H2O, Mo ≥39%, soluble molybdenum for fertilizer formulas.

Mo 39%SolubleCrystal

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Group 4 · Organic materials

Organic materials: biostimulants & carriers

Four plant- and mineral-source organic inputs used as biostimulants, chelating carriers and stress-tolerance boosters.

≥40-80%Amino Acid

Amino Acid

Plant-source compound amino acid powder, 40-80% grades, biostimulant and chelating base.

40-80%BiostimulantOrganic

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Alginic ≥16%Seaweed Extract

Seaweed Extract

Seaweed extract flake/powder with alginic acid and K2O for rooting and stress tolerance.

Alginic 16%K2O 18%Organic

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≥50-90%Fulvic Acid

Fulvic Acid

Water-soluble fulvic acid powder improving nutrient uptake and drought tolerance.

50-90%SolubleOrganic

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B·C seriesVitamin

Vitamin

Vitamin additives for biostimulant and specialty fertigation formulas.

AdditiveSpecialtyFormula

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Buyer FAQ

Fertilizer raw material questions

How do I choose between a sulphate raw material and an EDTA chelate?

Sulphates such as zinc sulphate (Zn 33-35%) or manganese sulphate (Mn 31-32%) are economical raw materials for soil application and dry blending. EDTA chelates such as EDTA-Zn-15 (Zn 15%) or EDTA-Fe-13 (Fe 13%) stay soluble and stable across a wider pH range, so they suit foliar, drip, and hydroponic programs. RunziChem supplies both across the micro-nutrient group.

Should I buy single raw materials or a finished water-soluble fertilizer?

Buy raw materials when you blend your own formulas, feed a compound-fertilizer line, or dose a single nutrient. Choose RunziChem's finished Water-Soluble Fertilizers, including 8 NPK+TE grades and inorganic or EDTA micronutrient blends, when you want a ready-to-use foliar or fertigation product. Many buyers combine both: raw materials as bases plus finished fertilizers for convenience.

What is the minimum order quantity and packaging for RunziChem raw materials?

RunziChem raw materials ship in 25 kg / 50 kg export bags, jumbo bags (1,250 kg), and custom packaging on request. Minimum order quantity depends on the specific product, grade, and destination. A full container load is typical for commodity sulphates, while chelates and speciality organics can move in smaller lots. Confirm MOQ and packaging per inquiry.

What documents come with each raw material and are the assays guaranteed?

Every RunziChem raw material is supplied with a technical data sheet (TDS), the current batch certificate of analysis (COA), and a safety data sheet (SDS) on request. The percentages shown on this page are typical or industry-typical values for buyer screening; the final assay, moisture, and appearance are confirmed by the batch COA for the lot you receive.

Request bulk fertilizer raw material specs and a quote

List the products, target grades, form, annual volume, destination and packaging. RunziChem can reply with the relevant TDS, current batch COA, SDS and a formal quotation.

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