Cargo secured. Responsibility sealed.
At UPRIVER Marine, we perform the independent sealing of hatches after completion of loading, acting as Protecting Surveyors to ensure cargo integrity and full traceability from port to port.
Our service includes:
Verification of hatch cover condition and tightness prior to sealing
Application of numbered cable seals or customized security seals, properly recorded and photographed
Issuance of a Seal Record Sheet detailing:
Seal number
Hatch location
Time/date of sealing
Weather conditions at the time
Photographic documentation of each hatch before and after sealing
Notification to stakeholders (charterer, shipowner, cargo interest)
This service provides assurance to receivers, charterers, and cargo owners that no unauthorized access to holds occurred during the voyage and that the cargo remained secure under original loading conditions.
We perform sealing operations in:
Up River ports (San Lorenzo, Timbúes, Rosario)
Montevideo and Nueva Palmira
Bahía Blanca and Brazilian ports
Ensure accurate bunker delivery with trusted supervision and detailed reporting—protecting your interests at every transfer point.
Verify bunker quantities at the start or re-delivery of a charter with full accuracy and neutrality.
Accurate cargo quantity determination through trusted draft surveys—minimizing disputes and protecting your interests.
Trusted maritime surveying and consulting across Argentina, Uruguay, Brazil, Paraguay and the Paraná–Paraguay Waterway, with coverage in the main US Gulf and East Coast ports and key global ports.
We specialize in bunker quantity surveys, cargo supervision, and regulatory audits, ensuring accuracy, transparency, and peace of mind for shipowners and charterers.
Head Office – Argentina:
US Office:
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