Complex fertilizers contain two or three primary plant nutrients – nitrogen (N), phosphorus (P) or potassium (K) – within each granule, ensuring balanced nutrient delivery for crop performance. Producers must comply with strict regulatory standards covering chemical and physical composition, grading and levels of impurities to compete successfully in this competitive global market.

We support manufacturers, traders and distributors with end-to-end testing, inspection and certification solutions across the complex fertilizer value chain. From raw material assessment to finished product verification, our global network of laboratories and experts ensures your products meet required safety, quality and environmental standards.

Red Background of Fertilizer Potassium Chloride

Our capabilities include:

Analytical testing of nutrient composition and impurities
Physical testing for granule size, strength and consistency
Sampling and sample preparation
Inspection during production, storage and transportation
Certification to support regulatory and market access
Advisory support on legislative and compliance requirements

We also support upstream and downstream processes, including product design evaluation, raw material analysis and field trials, helping you optimize product performance and market readiness.

Benefits of our complex fertilizer solutions

Consistent nutrient quality
We verify nutrient composition to ensure each granule meets specified N, P and K requirements.
Regulatory compliance assurance
We support adherence to international fertilizer regulations and environmental standards.
Optimized product performance
We provide data-driven insights to enhance formulation, stability and field effectiveness.
Reduced production and trading risk
We identify quality or compliance issues early to minimize losses and disputes.
End-to-end value chain support
We support your operations from raw materials through to final product delivery and market access.

Why choose SGS?

We are recognized as the benchmark for quality and integrity in the fertilizer industry. With a global network of state-of-the-art testing facilities, we are ready to support you in the delivery of high quality, compliant complex fertilizers to markets around the world. Our solutions support product and operational improvements, cost reductions and smooth market access.

From exploration to operation and mine closure, learn more about how we can support your mining operations.