Does it cause ferrous flocculation?

No, the product has good resistance to hard water and does not produce ferrous flocculation or deposit.

What is the moisture content limit?

The moisture content is kept below 15% to ensure stability and long-term validity.

Potassium Fulvate Leonardite Mineral Source

Name: Potassium Fulvate Leonardite Mineral Source
Brand: Qingdao Seawin Biotech Group Co., Ltd.
SKU: 2037917262

Shandong, ChinaQingdao Seawin Biotech Group Co., Ltd.

US$1,500.00

1,000 kg

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Condition

New

Certification

ISO

Model NO.

potassium fulvate

Application

Vegetables, Flowers, Fruit

State

Powder

Validity

Long-term

Physics State

Powder

Infection On Soil

Physiological Acid

Chemical Character

Chemical Acid

Raw Material

Leonardite

Type

Commercial Organic Fertilizer

Transport Package

20kgs/Bag

Specification

fulvic acid

Trademark

SEAWINNER

Origin

China

HS Code

38249

Production Capacity

500000tons/Year

Key features

Mineral Source Fulvic Acid: Derived from Leonardite with high Humic Acid content above 75% and Fulvic Acid above 16%.

High Potassium Content: Contains K2O above 12% on dry basis to support plant growth and nutrient uptake.

Water Soluble Formula: Black or brown flakes that are fully water soluble with no ferrous flocculation or deposit.

Soil Improvement: Increases soil moisture, improves structure, and promotes beneficial microbial activities.

Disease Resistance: Enhances plant ability to resist pests and diseases while increasing overall nutrition.

Versatile Application: Suitable for vegetables, flowers, and fruits; can be added to foliar or special fertilizers.

ISO Certified Quality: Manufactured under ISO certification ensuring consistent quality and safety standards.

Long-term Validity: Product maintains efficacy over long-term storage with less than 15% moisture content.

Company profile

Qingdao Seawin Biotech Group Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2004-06-01 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤18h CertifiedTerms of Payment: LC, T/T, Western Union

AI-Powered supplier vetting

SummaryQingdao Seawin Biotech Group Co., Ltd. is a China-based limited company founded in 2000, with 556 employees and operations in Shandong. It is identified as a manufacturer and processor focused on seaweed fertilizers, organic fertilizers, NPK fertilizers, fertilizer equipment, and related products. The supplier reports more than 10 production lines, a 260,000 m² manufacturing plant, annual seaweed extract and finished-product output of 600,000 tons, and export markets in South America, Europe, and North America. Its agronomist team provides fertilizer solutions and crop-protection advice, while reported certifications include ISO 9001, ISO 14001, ISO 45001, and ECOCERT organic-input certification. The available data supports strong production capability, certification coverage, and technical support. However, evidence is insufficient to confirm customization capability, financial credibility, or established customer cases; the trade records provided show only one transaction per listed buyer.

Supplier typeThe supplier is a limited company founded in 2000 and is explicitly described as a professional manufacturer focused on the exploitation, development, production, and marketing of marine biological products. Its product keywords and manufacturing descriptions identify it as a producer of seaweed fertilizer, organic fertilizer, NPK fertilizer, and fertilizer equipment rather than solely a trading company.

CertificationsThe supplier reports ISO9001:2015, ISO14001:2015, and ISO45001:2016 management-system certificates. Its SEAWINNER organic fertilizers are also stated to be certified by ECOCERT as organic agricultural inputs under both EU and NOP standards, providing explicit evidence of multiple quality, environmental, occupational-safety, and product certifications.

R&D capabilityThe supplier reports 41 years of total R&D-engineer experience and describes development and industrial utilization of marine biological resources. Its agronomist team provides professional fertilizer solutions and crop-protection advice, indicating technical development capability, although the slices do not provide specific R&D projects, patents, laboratories, or newly developed products.

Production capacityProduction capability is strongly supported by 556 employees, more than 10 production lines, a reported 260,000 m² manufacturing plant, two Shandong production bases, and stated annual output of 600,000 tons of seaweed extract and finished products. The supplier also reports lead times of within 15 workdays in off-peak periods and one month during peak periods, further indicating organized manufacturing capacity.