Powered by Made-in-China.com
Chitosan Oligosaccharide, Biostimulant, Nematode Control, Quitosano
US$32,000.00
3 Tons
Sample price:US$50.00/piece.Request sample
Product profile
Customization
AvailableCertification
ISO9001, ISOApplication
Vegetables, Flowers, FruitModel NO.
chitosanAppearance
PowderInfection on Soil
Physiological NeutralChemical Character
Chemical NeutralRelease Type
QuickTransport Package
BagSpecification
10kgTrademark
SEAWINNEROrigin
ChinaKey features
Nematode and Fungi Control: Inhibits growth of nematodes and fungi while improving plant disease resistance.
Enhanced Crop Quality: Increases petiole strength, Brix, and chlorophyll content for better crops.
Water Use Efficiency: Dramatically decreases transpiration to improve water usage efficiency.
Salt Tolerance: Enables plants to thrive under saline conditions.
Environmental Safety: Uses natural active substances fully respecting environment and human health.
Certified Quality: Manufactured under ISO9001 and ISO certification standards.
Customization Support: ODM and OEM services available for specific formulation needs.
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 main function of Chitosan Oligosaccharide?
A:
It acts as a plant vaccine to inhibit nematode and fungi growth, improve disease resistance, and control pests.
Q:How does this product improve crop quality?
A:
It increases petiole strength to reduce leaf shatter, boosts Brix and chlorophyll content, and accelerates maturation.
Q:Is the product safe for the environment?
A:
Yes, it uses natural active substances that fully respect the environment and human health.
Q:Can I request custom formulations?
A:
Yes, OEM and ODM services are available for specific needs.
Q:What certifications does the manufacturer hold?
A:
The product and manufacturer are certified under ISO9001 and ISO standards.
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
Chitosan Oligosaccharide, Plant Vaccine, Biostimulant, Biocontrol
US$28.00
100 Pieces(MOQ)
Factory Supply Chitosan Oligosaccharide COS Biostimulant Fertilizer CAS 148411-57-8
US$2.00-10.00
25 kg(MOQ)
Chitosan Oligosaccharide Plant Vaccine Prevent Disease
US$2,100.00
1 Ton(MOQ)
Plantguard- Chitosan Oligosaccharide with Biological Iodine for Plant Immunity and Crop Recovery
US$3.00-6.00
1,000 L(MOQ)
Leonardite Powder Humic Acid Fertilizer
Negotiable
5 Tons(MOQ)
Mudanjiang Granule Price Humic Acids for Plant
US$150.00-1,500.00
2 Tons(MOQ)
X-Humate 60% Slow Released Organic Fertilizer Humic Acid Granular
US$0.20-0.60
500 kg(MOQ)
Organic Fertilizer Supplier Manufacturer Powder Granule Price Humic Acids for Plants
US$150.00-1,500.00
2 Tons(MOQ)
Humic Acid Lignite Pearl Granular Factory Price
US$200.00
5 Tons(MOQ)
Round Granular Magnesium Humate Magnesium Humic Acid
Negotiable
5 Tons(MOQ)
Manufacturer Price 1415-93-6 45-55% 65% 70% Min Powder Humic Acid
US$150.00-1,500.00
2 Tons(MOQ)
99% Humic Acid CAS 1415-93-6 for Fertilizer
US$100.00-300.00
1 Ton(MOQ)
Fertilizer Supplier Manufacturer Powder Granule Price Humic Acid
US$150.00-1,500.00
2 Tons(MOQ)
Factory Supply Humic Acid CAS 1415-93-6 C9h10o4 Water Treatment/Feed
US$1,300.00-1,500.00
1 Ton(MOQ)
Manufacturer Price 1415-93-6 45-55% 65% Min Granule Humic Acid for Plant
US$150.00-1,500.00
2 Tons(MOQ)
Humic Acid 70%TC 140SL 150SL 350SL for Long-term Soil Improvement
Negotiable
1,000 kg(MOQ)
Refined Humic Acid Powder Potassium Humic Acid
US$310.00
25 Tons(MOQ)
Factory Supply Best Price Humic Acid CAS 1415-93-6 C9h10o4 Fulvic Acid/Potassium Humate/Sodium Humate/Wholesale Price
US$1,300.00-1,500.00
1 Ton(MOQ)



















