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Leading Manufacturer of
Ammonium Sulphate (AMSUL)

SINOPEC AMSUL FERTILIZER CO. LTD. is the premier producer of high-purity Ammonium Sulphate in China. Our AMSUL CAPRO grade is a by-product of caprolactam synthesis, ensuring consistent quality, optimal nutrient content, and cost-effective solutions for global agricultural and industrial markets.

Nutrient Profile: 20.5% Nitrogen + 23.0% Sulphur — Dual-nutrient efficiency for enhanced crop yield and soil health.

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Ammonium Sulphate Product

About SINOPEC AMSUL FERTILIZER CO. LTD.

As the leading manufacturer of Ammonium Sulphate (AMSUL) in China, we leverage advanced production technology and strategic resource integration to deliver premium-grade products to customers worldwide.

Production Facility

Trusted by Global Agribusinesses

Our Ammonium Sulphate is produced as a high-purity by-product of caprolactam manufacturing, ensuring minimal impurities and excellent solubility. This makes it ideal for use in water-soluble fertilizers, blending formulations, and industrial applications.

With a strong commitment to quality, sustainability, and customer satisfaction, we aim to be your long-term, reliable partner in nutrient supply.

  • ISO-Compliant Production
  • 20.5% Nitrogen, 23% Sulphur
  • Free-Flowing Granules & Crystals
  • Competitive Pricing & Bulk Supply

Our Ammonium Sulphate Products

High-purity, free-flowing Ammonium Sulphate in multiple grades tailored for agricultural and industrial applications.

Ammonium Sulphate Powder

Ammonium Sulphate Powder

CAPRO GRADE | 0–2mm | Free Flowing

  • Grade: Caprolactam (CAPRO)
  • Size: 0–2 mm
  • Use: Water-soluble & blending fertilizers
  • Form: Fine powder, excellent solubility
Ammonium Sulphate Crystal

Ammonium Sulphate Crystal

CAPRO GRADE | 1–4mm | Free Flowing

  • Grade: Caprolactam (CAPRO)
  • Size: 1–4 mm
  • Use: Blending fertilizer formulations
  • Form: Uniform crystals, low dust
Ammonium Sulphate Granular

Ammonium Sulphate Granular

STEEL GRADE | 2–5mm | Free Flowing

  • Grade: Steel Industry By-product
  • Size: 2–5 mm
  • Use: Blending, industrial applications
  • Form: Dense granules, excellent handling
High Purity AMSUL

High Purity AMSUL

Ultra-Low Impurity | CAS 7783-20-2

  • Purity: >99%
  • CAS No: 7783-20-2
  • Application: Specialty fertilizers, labs
  • Storage: Dry, ventilated environment
Bulk Ammonium Sulphate

Bulk Supply Option

25kg Bags to 1000kg Jumbo Bags

  • Packaging: 25kg PP bags, 50kg, 1000kg FIBCs
  • MOQ: 20ft container (20MT)
  • Shipping: FOB China ports
  • Custom Labels: Available on request
Fertilizer Grade AMSUL

Fertilizer Grade AMSUL

Optimized for Crop Nutrition

  • Nitrogen: 20.5% (NH₄⁺ form)
  • Sulphur: 23.0% (SO₄²⁻ form)
  • pH: Slightly acidic (5.5–6.5 in solution)
  • Benefit: Improves N and S uptake in crops
Industrial Grade AMSUL

Industrial Grade AMSUL

For Chemical & Textile Use

  • Application: Dyeing, flame retardants, adhesives
  • Solubility: 70.6g/100ml at 0°C
  • Stability: Stable under normal conditions
  • Handling: Non-flammable, low toxicity
Custom Blending AMSUL

Custom Blending Support

Tailored for NPK & Specialty Mixes

  • Compatibility: With urea, DAP, KCl, etc.
  • Segregation: Low risk due to uniform granulometry
  • Service: Technical data & blending trials
  • Support: On-site consultation available

Why Choose AMSUL from SINOPEC?

Our competitive edge lies in quality, consistency, and customer-centric service.

Premium Quality

Produced as a by-product of caprolactam, our AMSUL ensures high purity, low chloride, and excellent nutrient availability.

Global Reach

We export to over 30 countries with reliable logistics and documentation support for smooth customs clearance.

Customer Support

Dedicated sales team offering technical guidance, sample dispatch, and responsive communication in English and Mandarin.

20.5%

Nitrogen Content

23.0%

Sulphur Content

30+

Countries Served

20,000+

MT Annual Capacity

Frequently Asked Questions

What is the difference between CAPRO and STEEL grade?

CAPRO grade is derived from caprolactam production and has higher purity and solubility. STEEL grade comes from coke oven gas desulfurization and is suitable for bulk blending.

Is your Ammonium Sulphate suitable for organic farming?

While not certified organic, AMSUL is a naturally occurring salt and widely used in conventional and integrated farming systems for sulfur and nitrogen supplementation.

Can I get a sample before placing an order?

Yes, we offer free samples (up to 500g) for evaluation. Please contact us with your shipping address.

What are the packaging options?

We offer 25kg PP bags, 50kg jumbo bags, and 1000kg FIBCs. Custom branding and labeling are available upon request.

Do you provide MSDS and COA?

Yes, Material Safety Data Sheets (MSDS) and Certificates of Analysis (COA) are provided with every shipment.

Get in Touch

For inquiries, samples, or bulk orders, reach out to our sales team.

Contact Information

Email: [email protected]

Alternate Email: [email protected]

We respond to all inquiries within 24 business hours.

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