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Product profile
Customization
AvailableCondition
NewCertification
ISOModel NO.
Seaweed greenApplication
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 40% Alginic Acid, 18% K2O, 7% P2O5, and 3% N for robust plant nutrition.
Soil Improvement: Increases soil moisture, improves structure, and promotes beneficial microbial activities.
Disease Resistance: Enhances plant ability to resist pests and diseases through improved soil nutrition.
Water Soluble Formula: Green powder with good resistance to hard water, preventing ferrous flocculation.
Versatile Application: Suitable for foliar fertilizers, special purpose fertilizers, and drought-resisting fertilizers.
ISO Certified Quality: Manufactured under ISO certification standards ensuring consistent product quality.
Long-term Validity: Stable formulation with long-term validity for reliable storage and usage.
Customization Support: ODM and OEM services available to meet specific client requirements.
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: ≤24h 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% N, 7% P2O5, and 18% K2O.
Q:Is the powder soluble in water?
A:
Yes, it is a green powder that is water soluble and resistant to hard water issues.
Q:What are the main benefits for soil and plants?
A:
It increases soil nutrition and moisture, improves soil structure, and boosts plant disease resistance.
Q:Can this product be used in other fertilizers?
A:
Yes, 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 product requirements.
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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