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Product profile
Customization
AvailableCertification
ISOAppearance
PowderModel NO.
500g/bag, 1kg/bag, 20kg/bag, 25kg/bagInfection on Soil
Physiological NeutralChemical Character
SolidRelease Type
QuickWater-Soluble
100%Color
BlackTransport Package
1kg/Bag, 20kg/Bag, 25kg/Bag, 1000kg/BagSpecification
1kg/bag, 20kg/bag, 25kg/bag, 1000kg/bagTrademark
SeawinnerOrigin
Qingdao, ChinaProduction Capacity
500000litre/YearKey features
100% Water Soluble: Composed of pure natural seaweed extract, organic potassium and trace elements.
Enhances Stress Resistance: Seaweed polysaccharides combined with potassium to enhance resistance to stress.
Improves Fruit Quality: Promotes fruit expansion, increases Brix, and improves fruit coloring and quality.
Customizable Color: Available in Black color with 100% water-soluble properties.
OEM/ODM Service: Supports OEM and ODM services with 41 R&D engineers.
ISO Certified: Product meets ISO certification standards for quality assurance.
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 appearance of the product?
A:
The product appears as a black powder or flake.
Q:What are the main benefits of using this seaweed extract?
A:
It enhances stress resistance, promotes fruit expansion, increases Brix, and improves fruit coloring and quality.
Q:Is the product compatible with pesticides?
A:
It can be used with most pesticides, but a compatibility test is suggested prior to mixing.
Q:What certifications does the product have?
A:
The product is ISO certified.
Q:Does the supplier offer OEM or ODM services?
A:
Yes, OEM and ODM services are available.
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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