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Empty cargo hold of a bulk carrier inspected during an on-hire condition survey

Delivery day is where the charter is won or lost

Most charter disputes start on delivery day. Why the condition...

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Bunker barge alongside at Santos with container terminal traffic astern

ROB timing at Santos: most bunker disputes are about references, not honesty

Why most bunker quantity disputes at Santos come from timing...

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Bulk carrier alongside at Santos, bunker barge delivery

Two weeks, one standard: bunker surveys from Zona Común to Aratu

A fortnight of bunker surveys across Zona Común, Santos, Paranaguá,...

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Bunker barge alongside the vessel at Paranaguá anchorage during the night delivery

Case study: an apparent 35 MT bunker shortage traced to an obstructed sounding pipe

A 35 MT bunker shortage claim at Paranaguá turned out...

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The cost of a wrong draft survey - UPRIVER Marine article cover

A wrong Draft Survey can cost a shipowner thousands.

A wrong Draft Survey can cost a shipowner thousands. And...

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Surveyor checking a bunker fuel sample on board

Preparing ship holds for Grain and Oil inspections: International and Argentine standards

Preparing a dry bulk carrier or tanker for loading is...

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Recent Posts

Delivery day is where the charter is won or lost
October 15, 2026
ROB timing at Santos: most bunker disputes are about references, not honesty
October 8, 2026
Two weeks, one standard: bunker surveys from Zona Común to Aratu
October 8, 2026

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  • +54 9 341 3860309
  • operations@uprivermarine.com

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UP RIVER MARINE logo

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.

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Head Office – Argentina:

  • operations@uprivermarine.com
  • +54 9 341 3860309
  • E. Zeballos 135, Floor 3rd B, Rosario (2000), Argentina

US Office:

  • +1 786 785 2165
  • 7345 W Sand Lake Road, Orlando, FL 32819, USA

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