Saint Humic Acid
Humic Acid Manufacturing, OEM Formulation & Global Supply
Saint Humic is a China-based manufacturer and supplier of humic substances and agricultural ingredients, serving fertilizer producers, agricultural distributors, private-label brands and industrial customers.
- ChinaProduction base
- Since 2010Humic products
- Powder to liquidPowder, granules, flakes, crystals, liquid
- COA · TDS · SDSDocuments with your order

How we work
Matched to the process you run
Customers do not always need the same product. We match the material to the process in which it will actually be used.
Liquid fertilizers
Solubility, pH, sediment formation and compatibility with other ingredients.
Dry fertilizers
Particle size, moisture, handling properties and blending consistency.
Private label
Destination market, packaging size, label requirements and product specifications.
A high humic acid percentage does not necessarily mean that a material will dissolve completely in water.
Applications
Where our products are used
Agriculture
Soil conditioners, organic and compound fertilizers, water-soluble systems, foliar nutrition and fertigation.
Animal feed
Feed-grade sodium humate is one of our main products. Ask us for the specification and documents.
Environment
Humic materials used in soil and water treatment work.
Industry
Sodium humate as a binder and additive in industrial uses.
Products
Humic acid, humate and fulvic acid
Each product page lists the specification, grades and packing. Ask us for the grade that fits your use.

Humate
Humic Acid
From leonardite or lignite. Powder and granules; dissolves in alkaline solution, not in water.

Humate
Potassium Humate
Water-soluble powder, flake and crystal. Mainly used in agriculture, often mixed with urea, DAP or MAP.

Humate
Super Potassium Humate
Refined potassium humate with higher humic acid content. For drip irrigation and spraying.

Humate
Sodium Humate
Humic acid sodium salt from oxidized lignite or leonardite. Water-soluble powder or flake.


Fulvic
Fulvic Acid
Mineral fulvic acid from lignite in three grades. Powder and flake, for irrigation and spray fertilizers.
Fulvic
Bio Fulvic Acid
Also called bio potassium fulvate. Fully water-soluble, in two grades, suitable for foliar spray.

Fulvic
Potassium Fulvate
Fulvic acid potassium salt. Water-soluble powder for foliar spray or drip irrigation.
Humate Blends
Boron, silicon and chitin humate.
Amino Acids
Animal and plant sources, PGA granules, L-proline.
Seaweed Extract
Liquid, powder and flakes.
Carbon Fertilizer
Base fertilizer, Carbon Guard and fertigation.
Manufacturing and OEM
Standard supply and private-label projects
Saint Humic supports standard bulk supply as well as customized manufacturing and private-label projects.
- Product-grade selection
- Specification adjustment
- Selected powder and liquid formulations
- Customized packaging and labels
- Export order coordination
- Samples for evaluation
Not every formulation can be produced simply by combining ingredients. Where compatibility is uncertain, laboratory evaluation or a small-batch trial is recommended before commercial production.
We work with fertilizer manufacturers, agricultural distributors, OEM and private-label brands, industrial product buyers and soil-improvement projects.
Quality
Quality control and specifications
Our quality process includes raw-material evaluation, specification confirmation, finished-product testing and packaging inspection.
Depending on the grade, important quality parameters may include:
- Humic acid or fulvic acid content
- Test method and reporting basis
- Water solubility and insoluble matter
- pH and moisture content
- Potassium, sodium or other mineral content
- Ash content
- Particle size or granule characteristics
- Heavy metals and market requirements
We can discuss Certificates of Analysis (COA), Technical Data Sheets (TDS), Safety Data Sheets (SDS), batch identification and third-party testing.
Humic measurements vary between analytical methods. When comparing suppliers, confirm that results are reported on a comparable basis.


Packing & shipping
Packed and loaded for export
Photos of our packing and container loading. For a new inquiry, tell us the intended application, target specification, quantity, packaging preference and destination port.

Container loading

Palletised bags

Jumbo bags

Warehouse
Production
How our granules are made
Humic acid and nitro humic acid granules are made from leonardite in seven steps.
- Raw material treatmentLeonardite is treated with H₂O₂ or HNO₃ for further oxidation.
- MixingBinder and water are mixed into the material.
- GranulationThe mix is formed into granules in the granulator.
- DryingGranules are dried in a rotary cylinder drier.
- CoolingA cooling cylinder brings the granules down to temperature.
- SievingGranules are screened to the required size.
- PackingFinished granules are packed in bags.



Product forms
Powder, crystal and granules
Each product page lists the forms and grades available.






FAQ
Frequently asked questions
Is Saint Humic a manufacturer?
Yes. Saint Humic is a China-based manufacturer and supplier of humic substances and agricultural ingredients. We support standard bulk supply as well as customized manufacturing and private-label projects.
Does a high humic acid content mean the product dissolves in water?
Not necessarily. A high humic acid percentage does not mean that a material will dissolve completely in water, and raw humic acid and soluble potassium humate behave differently under acidic conditions. Tell us your process and we will suggest a suitable grade.
Can you make private-label products?
Yes. For private-label orders we discuss the destination market, packaging size, label requirements and product specifications before confirming production arrangements.
Which documents can you provide?
Certificates of Analysis (COA), Technical Data Sheets (TDS), Safety Data Sheets (SDS), batch identification and third-party testing requirements can be discussed for each order.
What do you need for a quote?
The intended application, target specification, required quantity, packaging preference and destination country or port. You can also send a reference COA or specification.
Knowledge
Latest articles
Need a specification or a quote?
Email info@humicacid.org or use the inquiry form.



