SGS and Intertek are the two largest independent inspection, testing, and certification companies operating in global commodity trade. Both maintain laboratory and inspection networks in virtually every major load port and destination worldwide, making them the most practical choices for international fertilizer shipments.
For fertilizer importers, independent inspection serves a fundamental purpose: it provides an objective, third-party verification that the cargo loaded on the vessel matches the quality and quantity specified in the purchase contract — before the vessel sails and before payment is released. Once a cargo is at sea, dispute resolution becomes significantly more complex and costly.
What Pre-Shipment Inspection Covers
A standard pre-shipment inspection scope for fertilizers typically includes the following components. First, identity and quality verification: the inspector visually confirms the product matches the contracted grade and form, and samples are collected from multiple points of the cargo (during loading or from stockpile).
The samples are sealed and dispatched to an accredited laboratory for analysis. The laboratory report confirms nutrient content (N, P2O5, K2O as applicable), secondary parameters (biuret for urea, water-soluble P for phosphate products, moisture), and physical properties (particle size distribution).
Second, quantity verification: the inspector confirms the gross and net weight of the cargo. For bulk cargoes, this is typically done via draft survey — a measurement of vessel displacement before and after loading to determine the loaded quantity. For containerised shipments, weight is confirmed from certified weighbridge tickets or container seal weights.
- ›Product identity and visual inspection
- ›Sampling from cargo (multiple representative samples)
- ›Laboratory analysis for contracted parameters
- ›Quantity verification (draft survey for bulk; weighbridge for containers)
- ›Loading supervision (monitoring that the correct cargo is loaded into the correct vessel)
- ›Sealing of container or hold and issuance of inspection certificate
The Inspection Certificate
At the conclusion of inspection, the inspection company issues an inspection certificate summarising the findings. This certificate confirms the cargo details, the sampling methodology, the laboratory results, and the quantity verified. Where the cargo meets the contracted specification, the certificate states this clearly.
The inspection certificate can be made a required document under the Letter of Credit, meaning the bank will only release payment when a conforming inspection certificate is presented alongside the other required documents. This is one of the most powerful protections a buyer has on a large transaction.
Who Pays for Inspection?
Inspection costs are negotiated as part of the trade terms. In many fertilizer trade structures, the cost of pre-shipment inspection is borne by the buyer, as it is the buyer who benefits most directly from the protection it provides. However, some sellers include inspection as a standard service (particularly for government tender requirements) or split the cost.
The cost of inspection is typically a few hundred to a few thousand US dollars per shipment depending on the scope, laboratory testing requirements, and the number of inspector days involved. For cargoes worth hundreds of thousands of dollars, this is a very cost-effective risk management measure.
How to Specify Inspection in the Purchase Contract
Inspection requirements must be specified in the purchase contract, not left to verbal agreement or post-contract negotiation. Key contract clauses should state: the name of the inspection company (e.g. 'SGS or Intertek, buyer's choice'), the scope of inspection (quality, quantity, or both), the point of inspection (load port, before loading or during loading), and how the inspection certificate fits into the payment mechanism.
Where the transaction is structured under a Letter of Credit, the L/C should list the inspection certificate as a required document, specifying the acceptable issuing party, the scope, and the form of the certificate. Any ambiguity in the L/C about inspection certificate requirements is a potential dispute trigger.
Destination Inspection vs. Load-Port Inspection
Load-port inspection is almost always preferable to destination inspection for buyers. Once the cargo is on the vessel, proving that a quality shortfall occurred before shipment (as opposed to during transit or at discharge) is complex. Load-port inspection creates a clean record of cargo condition at the point where the seller's responsibility ends under FOB or similar terms.
Destination inspection — sampling and testing after discharge — is useful as a supplementary check but carries more interpretive complexity. Transit damage, contamination during discharge, and sampling methodology at destination ports can all be contested. A load-port inspection certificate provides a much cleaner baseline.
Specific Considerations for Different Products
For urea shipments, the critical parameters inspectors will test are nitrogen content and biuret. For DAP and MAP, phosphorus availability and moisture are key. For NPK compounds, all three macronutrients and moisture are tested. For MOP/potash, the K2O content and moisture are the primary parameters.
Some products require additional care during inspection due to sensitivity to humidity or handling damage. Prilled urea, for example, should be inspected for caking or breakage before loading, particularly if it has been stockpiled for an extended period. The inspector can flag storage condition concerns in the inspection report.