10/04/2026
π’ Marine Cargo Insurance Case Study: When Moisture Damage Leads to Claim Rejection
A shipment of grass mats was transported from Hong Kong to Long Beach, USA.
At the port of discharge, the consignee found part of the cargo wet and unsellable.
π What was the claim?
The cargo owner stated that:
π Damage was caused due to moisture and seawater ingress during transit
π Filed a claim under marine cargo insurance
π Survey Findings:
An independent survey revealed:
* β No container leakage
* β No structural damage to container
* β Damage caused by **container sweat (condensation)**
* β Cargo had **moisture residue before shipment**
* β Lack of proper drying & ventilation
β Claim Outcome: Rejected
The insurer denied the claim stating:
π Loss was due to Inherent Vice (natural property of goods)
π Not caused by external insured perils
π° Financial Impact:
* Cargo Value: $1,000,000
* Claim Settled: $30,000 (partial)
π‘ Key Learning:
Not all damage during transit is insurable.
π Poor packaging & pre-shipment condition can void claims
π βInherent Viceβ is a **major exclusion** in marine cargo insurance
This case highlights that risk starts before loading not during transit.
In shipping,
β Packaging
β Moisture control
β Cargo preparation
are just as critical as insurance coverage.