Thailand FertilizerFillers Co. LTD
Thailand FertilizerFillers Co. LTD Logo
Thailand FertilizerFillersCo. LTD
Patented H4SiO4 Technology

Cultivating Strength through Science

A 30-year Thai family heritage backed by patented Orthosilicic acid (H4SiO4) technology. Building stronger crops, naturally.

30+
Years Experience
41+
Product Lines
100%
Thai Owned
Healthy green crops in Thai agricultural field
Natural Protection
Against pests & mold
Our Products

Complete Agricultural Solutions

From specialty nutrients to industrial-grade fillers, we provide everything your farm needs to thrive.

The Doctor Series

Crop-Specific Solutions (5)

Specialized fertilizer blends tailored for specific crop cultivation.

  • Coconut Doctor
  • Durian Doctor
  • Palm Doctor
  • +2 more products

Silicic Acid Gold

Premium Silicon Products (4)

Orthosilicic acid formulations in powder and granule forms for enhanced crop protection.

  • Silicic Acid Gold (Granules)
  • Silicic Acid Gold (Powder)
  • Silicon (SiO2): Soil Conditioner
  • +1 more products

Organic & Chemical Fertilizers

NPK Formulas (12)

Chemical and organic-chemical fertilizers with specific N-P-K ratios for all growth stages.

  • NPK 6-6-6, 9-9-9, 12-3-5, 13-13-21, 14-7-35
  • NPK 3-12-6, 3-6-12, 15-5-5, 16-16-8
  • Plus 4 more formulas

Specialty Products

Advanced Solutions (5)

Organic matter and specialized formulations for soil health.

  • Organic OM 20% (Powder & Granules)
  • Silicic Acid + Humic
  • Agricultural Plus Series
  • +1 more products
The Science

What is Orthosilicic Acid?

Discover the patented technology behind our revolutionary crop protection system.

Chemical Formula: H4SiO4

Water-Soluble Silicon Technology

Orthosilicic acid (H4SiO4) is a water-soluble chemical that can be absorbed by plants along with other nutrients during watering. After the water evaporates from soil, excess orthosilicic acid solidifies into quartz on the plant surface.

Water-Soluble

Easily absorbed through the root system alongside water and essential nutrients.

Protective Barrier

Forms a quartz layer that shields against aphids, larvae, molds, and nematodes.

Strengthens Stems

Silicon deposits reinforce cell walls, making plants more resistant to lodging and physical stress.

Protection Against:

Aphids
Insect Larvae
Molds & Fungi
Parasitic Nematodes
Only

Copyright owner of H4SiO4 technology in Thailand

Why Choose Us

B2B Trust Barometer

Partner with Thailand's leading agricultural innovation company.

Heart of Thai Agriculture

Located in Kanchanaburi

Kanchanaburi, Thailand 71150

Since 1992

30+ Years Experience

A family-owned agricultural company inherited from generation to generation.

Research-Driven

Laboratory Services

Analytical lab services for water/soil quality testing and customized fertilizer planning.

Patented Technology
Expert Team
Fast Delivery

Ready to Grow with Us?

Contact our team for customized fertilizer solutions, bulk orders, or laboratory services. We're here to help your farm thrive.