At UPRIVER Marine, we perform Bunker Quantity Surveys (BQS) with strict accuracy, transparency, and full representation of our clients’ interests. Our team ensures that every metric ton paid for is delivered—no exceptions.
We operate across strategic bunkering points in South America and the United States, including:
Our dedicated surveyors oversee the entire bunkering process, from pre-transfer checks and measurement of remaining-on-board (ROB) to final tank readings and documentation. When necessary, bunker samples are collected and sealed, with the option of lab analysis to verify quality and compliance.
With UPRIVER Marine, you can rely on accurate bunker reconciliation and complete protection of your commercial interests—every drop counts.
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.
Independent pre-loading inspections to ensure hold readiness and avoid cargo claims or rejections.
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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