📚 Commodity Knowledge Base

Free reference guide to commodities we trade — specs, uses, trade routes, pricing and more. Published by Tetra Commodity Pte. Ltd., Singapore.

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Fertilizers

Ammonia

The foundational nitrogen chemical used to produce urea, DAP, nitric acid and virtually all nitrogen fertilizers.
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Fertilizers

DAP (Diammonium Phosphate)

A high-analysis phosphorus fertilizer, the most widely traded phosphate fertilizer globally.
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Fertilizers

NPK (Compound Fertilizer)

A granular fertilizer containing nitrogen, phosphorus and potassium in a single product for balanced crop nutrition.
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Fertilizers

Urea

The world's most widely used nitrogen fertilizer, also used in industrial applications.
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