Powered by Made-in-China.com
Black Seaweed Extract Powder / Flake From Automatic Flagship Manufacture 100% Soluble
US$1.00-2.00
2,000 Pieces
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableCondition
UsedCertification
ISO9001, ISOModel NO.
Alga 21 stApplication
Vegetables, Flowers, FruitState
PowderValidity
Quick ActingPhysics State
SolidInfection On Soil
Physiological NeutralType
Commercial Organic FertilizerTransport Package
BagSpecification
20kg/bag 10KG/BAG 1kg/bag 500gram/bagTrademark
SEAWINNEROrigin
ChinaHS Code
3105Production Capacity
500000ton/YearKey features
100% Water Soluble: Black or brown powder/flake with 100% water solubility for easy application.
Enhances Crop Quality: Promotes fruit expansion, increases Brix, improves coloring, and boosts yield.
Stress Resistance: Seaweed polysaccharides combined with potassium enhance resistance to stress.
Competitive Pricing: Best price due to own algae resources and harvest ships, controlling costs from the start.
ISO Certified: Product holds ISO9001 and ISO certifications ensuring quality standards.
Customizable Production: ODM and OEM services available with 41 R&D engineers supporting customization.
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 physical form of the seaweed extract?
A:
It is available as black or brown powder or flakes, which are 100% water soluble.
Q:How does this product benefit crops?
A:
It regulates plant growth, improves stress resistance, promotes fruit expansion, increases Brix, and enhances fruit quality and yield.
Q:What are the recommended application rates?
A:
For foliar spray, use 1-5kg/ha. For irrigation, use 5-15kg/ha.
Q:Can this product be mixed with pesticides?
A:
It can be used with most pesticides, but a compatibility test is suggested prior to mixing.
Q:Is customization available for this product?
A:
Yes, ODM and OEM services are available, supported by 41 R&D engineers.
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
You may also like
100% Natural Biological Enzymolysis Dried Kelp Seaweed Extract Powder
US$3,000.00-4,000.00
5 Tons(MOQ)
Refined Alginic Acid Seaweed Extract Powder From Ascopyllum Nodosum
US$3,000.00-5,000.00
1 Ton(MOQ)
High Quality 100% Water-Soluble Organic Black Seaweed Extract Powder
US$2.40-2.60
1,000 kg(MOQ)
Hibong Organic Green Agriculture Kelp Seaweed Extract Powder
US$3,000.00-4,000.00
5 Tons(MOQ)
Ascophyllum Nodosum Black Seaweed Extract Powder 100% Water Soluble
US$2.00-3.00
500 kg(MOQ)
100% Seaweed Extract Organic Fertilizer Powder
US$3,000.00-4,000.00
5 Tons(MOQ)
Agriculture Grade Black Flake Micro Granule Seaweed Extract Powder for Cash Crops
US$2,600.00-2,800.00
5 Tons(MOQ)
Agriculture Used 100% Watersoluble Seaweed Extract Powder
US$2.40-2.60
1,000 kg(MOQ)
18% Alginic Acid Kelp and Brown Alga Source Seaweed Extract Big Flakes Powder
US$2,390.00-3,290.00
1 Ton(MOQ)
Premium Organic Seaweed Extract Powder for Natural Fertilizer
US$2,800.00-3,600.00
2 Tons(MOQ)
Natural Growth Hormones Seaweed Extract Foliar Fertilizer Flake/Powder
US$1.50-3.50
100 kg(MOQ)
Biological Enzymolysis Black Organic Fertilizer Seaweed Extract Powder
US$2.40-2.60
1,000 kg(MOQ)
Anti-Hard Water Leonardite Extract Fulvic Acid Soluble Powder
US$0.70-3.50
500 kg(MOQ)
High Purity Water Soluble Organic Black Seaweed Extract Powder
US$2.40-2.60
1,000 kg(MOQ)
Seaweed Extraction Seaweed Extract Flake Powder with 18% Alginic Acid
US$2,390.00-3,290.00
1 Ton(MOQ)
Customized Seaweed Extract Flake/Powder for Compound Formular Fertilizer
US$1.50-3.50
100 kg(MOQ)
100% Soluble Mineral Resource Fulvic Acid Powder
Negotiable
5 Tons(MOQ)
Brown Seaweed Extract Flake/Powder with Algnic 18%
US$1.50-3.50
100 kg(MOQ)
Soluble Humic Acid Dry Sodium Humate Powder From Leonardite
US$350.00-550.00
10 Tons(MOQ)
100% Mineral Souce Fulvic Acid 70% K2o 10% Fulvic Acid Soluble Powder
US$0.70-3.00
1,000 kg(MOQ)



















