What is the typical lead time for orders?

Off-season lead time is within 15 workdays, while peak season lead time is approximately one month.

What certifications does the product have?

The product is certified under ISO standards.

Where is the manufacturing facility located?

The factory is located in Qingdao National University Sci-Tech Park, Qingdao, Shandong, China.

Seaplus-Seaweed Plus NPK Liquid Fertilizer

Name: Seaplus-Seaweed Plus NPK Liquid Fertilizer
Brand: Qingdao Seawin Biotech Group Co., Ltd.
SKU: 932682925

Shandong, ChinaQingdao Seawin Biotech Group Co., Ltd.

US$3,000.00

1,000 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Condition

New

Certification

ISO

Model NO.

seaweed extract plus npk

Application

Vegetables, Flowers, Fruit

State

Liquid

Validity

Long-term

Physics State

Liquid

Infection On Soil

Physiological Acid

Chemical Character

Chemical Acid

Raw Material

Manure

Type

Commercial Organic Fertilizer

Transport Package

200L/Drum

Specification

NPK

Trademark

SEAWINNER

Origin

China

HS Code

310100

Production Capacity

500000tons/Year

Key features

High Nutrient Concentration: Contains 150g/L Seaweed Extract, 50g/L N, 150g/L P2O5, and 40g/L K2O.

Enhanced Phosphorus Absorption: Compounds seaweed extract with poly-phosphorus to increase phosphorus uptake.

Promotes Early Growth: Formulated to stimulate and accelerate early plant development stages.

Versatile Application Methods: Suitable for direct foliar spray, drip irrigation, or root fertigation.

Certified Quality: Manufactured under ISO certification standards for reliability and safety.

Organic Raw Material: Derived from manure, classified as a commercial organic fertilizer.

Customizable Production: ODM and OEM services available for tailored fertilizer solutions.

Fast Lead Time: Off-season delivery within 15 workdays; peak season within one month.

Company profile

Qingdao Seawin Biotech Group Co., Ltd.

Shandong, China

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.