Humic Acid Powder for Fertilizer Use, 50–90% Total Humic Acid, China Export Supply
China-origin humic acid powder candidate for fertilizer and soil-conditioner formulation buyers. Key checks for RFQ include total humic acid on dry basis, organic matter, moisture, pH, mesh size, insoluble vs soluble form, heavy metal limits, Brazil import documentation, and packing suitability for container export.
Quick buying facts
Identify the grade, package, and import market before comparing suppliers.
Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.
CAS check: Humic acids are commonly referenced as CAS 1415-93-6; confirm exact declared substance, grade, and customs description with supplierOrganic fertilizer raw material / humic acid powderReady for buyer RFQ with specification and document verification
Product: Humic acid powder, reportedly derived from leonardite
CAS check: Humic acids are commonly referenced as CAS 1415-93-6; confirm exact declared substance, grade, and customs description with supplier
Total humic acid: 50–90% on dry basis, confirm test method
Organic matter: 60–90%
Moisture: <25%
pH: 5–6
Particle size: 40–80 mesh
Form: Solid powder
Solubility: Source text describes insoluble humic acid powder; confirm insoluble, soluble, potassium humate, or sodium humate variant before quotation
HS code stated by source: 382499999; buyer should verify local classification for Brazil import
Who uses this page
Target buyers
Fertilizer importers in Brazil
Organic fertilizer formulators
Soil-conditioner manufacturers
NPK compound fertilizer producers using organic additives
Agricultural input distributors
Private-label fertilizer packing companies
Horticulture and plantation input suppliers
Before matching
Documents to check
CAS number, grade, assay, and impurity profile
SDS, COA, TDS, HS code, and transport classification
Destination-market import documents before supplier matching
Package and route
Packing notes
Transport package stated as customizable; request exact standard export packing before PO
Common RFQ checks: 25 kg bags, jumbo bags, palletized or non-palletized shipment, liner bag, moisture barrier, and container loading quantity
MOQ shown on source page: 25 tons; confirm current MOQ and sample availability
Confirm whether packaging labels can show product name, net weight, batch number, origin, manufacturing date, and importer-required fertilizer labeling details
For Brazil-bound cargo, ask whether supplier has previous shipment experience and can provide photos of export packing and container stuffing
Applications and sourcing options
Check whether this product fits the buyer's actual application.
Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.
Use context
Common applications
Raw material for organic fertilizer formulation
Soil-conditioner ingredient for agricultural input products
Blend component for compound fertilizer production
Powder input for granulation or repacking operations
Export supply candidate for buyers requiring humic acid specification verification
How we compare
Sourcing options
50% total humic acid economy grade
70% total humic acid mid-grade powder
90% total humic acid higher-assay powder
40–80 mesh powder grade
Custom moisture and packing requirements subject to supplier confirmation
Container-load export supply with batch COA and pre-shipment inspection
Human review
Compliance notes
Request COA for each batch covering total humic acid, organic matter, moisture, pH, particle size, ash/insolubles where applicable, and any buyer-specified contaminants
Request third-party test options for heavy metals and undesirable elements, especially Cd, Pb, As, Hg, Cr, and other limits required by destination market
Ask for SDS, TDS/specification sheet, commercial invoice, packing list, certificate of origin, and any fertilizer-related export documents available from supplier
Confirm whether the product is classified as dangerous goods for sea/air transport; humic acid fertilizer powders are commonly shipped as non-DG, but classification must be supported by SDS and shipper declaration
For Brazil import, buyer should check MAPA/fertilizer registration, labeling, customs classification, and local importer requirements before shipment
Do not rely on platform certifications alone; verify manufacturer identity, production site, and batch traceability documents
Confirm whether the material contains added potassium, sodium, NPK nutrients, or other salts, as this affects declaration, specification, and import review
Buyer search paths
Related sourcing terms
These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.
humic acid China export to Brazilhumic acid powder supplier Chinaleonardite humic acid fertilizer raw materialorganic fertilizer humic acid 50 90 percenthumic acid powder 40 80 meshBrazil fertilizer import humic acidinsoluble humic acid powderhumic acid COA heavy metals
Related product options
Build a broader quote package from adjacent options.
Buyers often compare neighboring grades, forms, or route options before sending one consolidated RFQ.
Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.
Questions to confirm
What is the exact product form: humic acid, potassium humate, sodium humate, fulvic acid blend, or leonardite powder?
Which CAS number and HS code will be declared on export documents?
Is the quoted grade insoluble or water-soluble, and what is the solubility percentage?
What test method is used for total humic acid and organic matter?
Can you provide a recent batch COA and third-party heavy metal report?
What are the guaranteed minimums and maximums for humic acid, organic matter, moisture, pH, particle size, ash, and heavy metals?
What packing options are available for Brazil export: 25 kg bags, 500 kg jumbo bags, 1 MT jumbo bags, palletized, or non-palletized?
What is the current FOB/CFR price, MOQ, lead time, and container loading quantity for 20 ft and 40 ft containers?
Checks before quote
Request COA for each batch covering total humic acid, organic matter, moisture, pH, particle size, ash/insolubles where applicable, and any buyer-specified contaminants
Request third-party test options for heavy metals and undesirable elements, especially Cd, Pb, As, Hg, Cr, and other limits required by destination market
Ask for SDS, TDS/specification sheet, commercial invoice, packing list, certificate of origin, and any fertilizer-related export documents available from supplier
Confirm whether the product is classified as dangerous goods for sea/air transport; humic acid fertilizer powders are commonly shipped as non-DG, but classification must be supported by SDS and shipper declaration
For Brazil import, buyer should check MAPA/fertilizer registration, labeling, customs classification, and local importer requirements before shipment
Do not rely on platform certifications alone; verify manufacturer identity, production site, and batch traceability documents
Confirm whether the material contains added potassium, sodium, NPK nutrients, or other salts, as this affects declaration, specification, and import review
Next step
Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.
