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Quick Details

  • Classification: Organic Fertilizer
  • Type: Seaweed
  • CAS No.: 84775-78-0
  • Other Names: Top Alga
  • MF: (C12H16O12)n
  • EINECS No.: 232-680-1
  • Place of Origin: Shandong, China (Mainland)
  • Release Type: Quick
  • State: Liquid
  • Purity: 99.5%
  • Application: Regulate the growth of crops and improve fruit's quality
  • Brand Name: Sea Spirit
  • Model Number: seaweed liquid fertilizer
  • Colour: Dark Brown
  • Delivery: 7-15 days
  • PH: 6-8
  • Density: 1.2KG/L

Packaging & Delivery

Packaging Details 1L*12 Bottle/Case; 5L*4 Bottle/Case; 200L/Drum; 12~16 mt/20FCL.
Delivery Time 10 days after order confirmed.

                                     Details of Products 


Main Ingredient:

 Alginate Acid ≥ 100g/L; N+P2O5+K20≥200g/L; Fe+ B + Zn ≥10g/L; Organic matter≥220g/L; PH 6~8; Density: 1.2kg/L



1.Regulate the growth of plant, advance flowering phase.

2.Increase the set of fruit, enlarge fruit size and improve fruit's colour.

3.Improve soil condition and provide sufficient trace element to crops.

Applying Crops:

Vegetables, flowers, fruit trees, melons, medical plants, tea, etc.


Application Method:



Dilute with water as 1:1500~1:800. Twice in a growing period.


Irrigation root:



Brand Story

Our "Sea Lion" and “Kinghami” Brand seaweed series fertilizers enjoy high popularity both domestically and internationally. The two Brands are popular among more than 20 provinces in China and are sold well in Korea, Taiwan Province of China, Italy, Malaysia, Germany, the Netherlands, India, and Japan, as well as other developed countries and regions in Europe and America. With strong effort, we plan to be the strongest and most professional seaweed fertilizer production-base and try to be the top-grade enterprise in the marine engineering internationally. We do our best for the development of worldwide green agriculture and human health. 



Our seaweed fertilizer is made from Kelp seaweed. Kelp seaweed is a kind of delicious sea food for Chinese, Korean and Japanese. Besides alginate acid, it contains luxuriant mannitol, iodine, gibberellin, CTK, indoleacetic acid and many necessary microelement for crops, for example, Fe, Mg, Mn, Zn, etc. In fact, Kelp seaweed is the best and most expensive raw material of seaweed fertilizer.


We produce seaweed fertilizer by biodegradation. We have gained IMO organic certificate, ISO: 9001 ISO:14001 certificate and other certificates used for production, environment protection and export. We do not add any chemical products or damage the active constituent of seaweed during the process and remain all the nutrients of Kelp seaweed. We do not extract any element, so all the nutrients of seaweed can be used in fertilizing the crop. We have been concentrate on fertilizer production for 7 years and continue our ideas in the future, this is the biggest advantage upon other seaweed fertilizer manufacturer from China.



Pictures of Products




                                                   Details of our factory and Certificates

Outline of our factory


Office building


Reaction Kettle


Dring Drum


Packing Line

Raw Materials in Workshop


Sample Room and Laboratory




Trade Show

Clients Visiting Our Factory


 Farmers using our fertilizer


All products can be manufactured according to customers’ request, the same as package.

Should you have any further questions or you have interest in our products, , please always feel free to contact us. Besides TM, you can also contact us by skype wechat &whatsapp: +8613256880641.  Once you inquired, you will get a response within 12 hours.




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China (Mainland) | Manufacturer, Trading Company
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