Ammonium Sulphate Prices, Cost Drivers & Commodity Insights – Q2 2026

Global Ammonium Sulphate Price Comparison 

Note: Prices reflect indicative quarterly average transaction ranges in USD per Metric Ton (USD/MT). Standard/Caprolactam-grade AS consists of fine crystalline material requiring compaction for bulk blending, whereas Granular grade is directly suitable for mechanical spreader application. FOB Middle East benchmark represents GCC export availability leveraging low-cost gas-based ammonia.

Production Route Analysis & Feedstock Correlations

Production Yields & EU CBAM Overview

Caprolactam By-product Yields & Production Routes

• Caprolactam By-product Recovery: Modern caprolactam plants typically generate approximately 2.5–4.5 metric tons of ammonium sulphate by-product per metric ton of caprolactam produced, depending on process technology and recovery configuration. Because AS is a co-product, its supply is highly inelastic and driven by textile/polyamide demand rather than agricultural cycles.

• Direct Synthetic / Neutralization Route: Direct production reacts gaseous/anhydrous ammonia directly with concentrated sulfuric acid ($2NH_3 + H_2SO_4 \rightarrow (NH_4)_2SO_4$). Synthetic producers act as marginal price setters, adjusting operating rates based on raw material spreads (ammonia + sulfuric acid vs. AS fertilizer prices).

EU Carbon Border Adjustment Mechanism (CBAM) Implementation

• Emissions Allocation & CBAM Liabilities: The phased implementation of the EU Carbon Border Adjustment Mechanism (CBAM) continued to influence supplier selection and procurement strategies for nitrogen fertilizers entering the European market. Caprolactam-derived ammonium sulphate may benefit from lower allocated embedded emissions under accepted emissions allocation methodologies, although the effective CBAM liability depends on verified plant-level emissions reporting and regulatory guidance.

• Supplier Carbon Verification: Compliance liabilities center on verified direct and indirect emissions ($tCO_2/tNH_3$). Exporters with advanced emissions accounting and lower-carbon ammonia feedstock face reduced compliance costs when selling into Europe.

Key Market Risks 

• Chinese Caprolactam Maintenance: Chinese caprolactam plant maintenance or operating rate reductions cutting global by-product AS supply availability.
• Sulfur & Sulfuric Acid Volatility: Volatility in elemental sulfur and sulfuric acid spot prices compressing direct synthetic producer margins.
• Freight & Seasonal Demand Cycles: Ocean freight fluctuations affecting export competitiveness to South America (Brazil) and seasonal fertilizer application patterns in Latin America and Southeast Asia.
• Environmental Regulations: Potential tightening of environmental regulations impacting caprolactam and ammonia manufacturing operations.

Procurement & Risk Management Recommendations 

• Monitor Sulfur & Sulfuric Acid Markets: Track sulfur and sulfuric acid spot markets closely, as they directly affect the production economics and price floor of synthetic ammonium sulphate.
• Balance By-Product & Synthetic Sourcing: Balance procurement between caprolactam by-product and synthetic producers to reduce exposure to either Nylon-6 operating rates or ammonia feedstock cost swings.
• Track Caprolactam Industrial Cycles: Monitor Asian caprolactam operating rates and Nylon-6 demand as leading indicators of standard AS export volumes and spot availability.
• Prioritize Verified CBAM Carbon Data: For European buyers, prioritize suppliers with verified embedded emissions data to minimize CBAM compliance costs and regulatory liabilities.