What are the lead times for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Does the product help with plant stress?

Yes, alginic acid and glycine betaine help plants cope with drought, salinity, extreme temperatures, and frost.

What are the payment terms?

Payment terms include LC, T/T, and Western Union.

Alga Optimal- Highest Alginic Acid in China, Top Quality

Name: Alga Optimal- Highest Alginic Acid in China, Top Quality
Brand: Qingdao Seawin Biotech Group Co., Ltd.
SKU: 1995336292

Shandong, ChinaQingdao Seawin Biotech Group Co., Ltd.

US$3.60

2,000-9,999 Kg or L

US$3.30

10,000-19,999 Kg or L

US$3.00

20,000-29,999 Kg or L

US$2.90

30,000+ Kg or L

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Condition

New

Certification

ISO9001, ISO, CE

Model NO.

Alga Optimal powder & Liquid

Application

Vegetables, Flowers, Fruit

State

Microparticle

Validity

Quick Acting

Physics State

Solid

Infection On Soil

Physiological Neutral

Chemical Character

Chemical Alkaline

Raw Material

Seaweed

Type

Biostimulant

Solubility

100% Soluable

Transport Package

Bag; Bottle, Drum

Specification

1KG, 10KG, 20KG; 1L, 5L, 10L, 20L, 1000L

Trademark

Seawinner

Origin

China

Production Capacity

5, 0 Mtns Per Day

Key features

High Alginic Acid Content: Derived from brown seaweed with highest alginic acid levels in China.

Patented Extraction Process: Uses Seawin patented enzymatic extraction to preserve active ingredients.

Stress Reduction Capability: Alginic acid and glycine betaine reduce biotic and abiotic stress effects.

Soil Microbe Activation: Serves as food source for microbes, increasing activity and nutrient availability.

100% Solubility: Fully soluble in water for efficient application in foliar and fertigation.

Customization Available: Customization options are available for this product.

Multiple Certifications: Certified with ISO9001, ISO, and CE standards.

Versatile Application: Suitable for vegetables, flowers, and fruit with compatible Agchem sprays.

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: ≤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.