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Product profile
Customization
AvailableCondition
NewCertification
ISOModel NO.
Green SeaweedApplication
Vegetables, Flowers, FruitState
PowderValidity
Long-termPhysics State
PowderInfection On Soil
Physiological AcidChemical Character
Chemical AcidRaw Material
LeonarditeType
Commercial Organic FertilizerTransport Package
20kgs/BagSpecification
fulvic acidTrademark
SEAWINNEROrigin
ChinaHS Code
310100Production Capacity
500000tons/YearKey features
High Nutrient Content: Contains 35% Organic Matter, 40% Alginic Acid, 3% N, 7% P2O5, and 18% K2O.
Soil Improvement: Increases soil nutrition, moisture content, and promotes microbial activities.
Plant Protection: Improves plant resistance to pests and diseases effectively.
Water Soluble Formula: Green powder with good resistance to hard water, no ferrous flocculation.
Versatile Application: Can be added to foliar fertilizers, special purpose, or drought-resisting fertilizers.
ISO Certified Quality: Product meets ISO certification standards for commercial organic fertilizer.
Long-term Validity: Ensures long-term effectiveness and stability of the fertilizer product.
Customization Support: ODM and OEM services available for tailored fertilizer solutions.
Company profile

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.
Product Q&A
Q:What is the chemical composition of the seaweed extract?
A:
It contains 35% Organic Matter, 40% Alginic Acid, 3% Nitrogen, 7% P2O5, and 18% K2O.
Q:How does this fertilizer improve soil quality?
A:
It increases soil nutrition and moisture content while promoting beneficial microbial activities.
Q:Is the product suitable for hard water areas?
A:
Yes, it is water soluble with good resistance to hard water and prevents ferrous flocculation.
Q:What are the main applications of this product?
A:
It can be added to foliar fertilizers, special purpose fertilizers, or drought-resisting fertilizers.
Q:Does the manufacturer offer OEM or ODM services?
A:
Yes, both OEM and ODM services are available for customized fertilizer production.
Send Inquiry
*To:
Qingdao Seawin Biotech Group Co., Ltd.
Qingdao Seawin Biotech Group Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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