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Protecting Your Most Significant Operational Cost
Bunker fuel is the single largest expense for any vessel operator. Inaccurate measurements, short deliveries, and disputes can lead to substantial financial losses. An independent bunker survey is your best defense.
The Risk of Short Delivery
Disputes over the quantity of fuel delivered are common. Without an impartial surveyor, you risk paying for fuel you never received.
Charter Party Disputes
Disagreements over the quantity of fuel remaining on board (ROB) at the start or end of a charter can lead to costly delays and legal conflicts.
Uncovering Hidden Losses
Undeclared bunkers, inaccurate tank calibrations, and the “cappuccino effect” can hide significant fuel losses. Only an expert surveyor can uncover these issues.
Tired of Bunker Losses in Vietnam?
The Reality of Bunkering in Vietnam
Without an independent expert on your side, you are exposed. Relying solely on the figures provided by the supplier or the vessel’s crew creates a significant financial risk. Short deliveries are a constant threat. Disputes over On-Hire and Off-Hire quantities can sour relationships and lead to costly arbitration. You are left questioning every delivery, eroding trust and impacting your bottom line.
The Observater Solution: Certainty & Control
We eliminate the uncertainty. By appointing Observater, you place an impartial, highly trained expert on board whose sole purpose is to protect your interests. We replace doubt with facts, providing you with the definitive, evidence-based reports you need to take control of your bunkering operations across all of Vietnam’s major ports.
- ✓Independent Gauging: We verify every tank, every time.
- ✓Dispute Prevention: Our reports provide the final word in any charter party ROB disagreement.
- ✓Fraud Detection: Our BIS surveys uncover hidden losses and malpractice.
- ✓Quality Assurance: We ensure correct MARPOL sampling to protect your machinery.
Your Local Survey Experts Across Vietnam
We provide rapid, reliable, and precise survey services for all operations at all key Vietnamese ports.
Ho Chi Minh City (HCMC)
As Vietnam’s commercial heart, we provide expert bunker surveys in Ho Chi Minh City, covering all terminals including Cat Lai, for container ships, tankers, and general cargo vessels.
Vung Tau (Cai Mep & Phu My)
Serving Vietnam’s deep-water terminals, we offer specialized bunker surveys in Vung Tau, Cai Mep, and Phu My for the largest container vessels and tankers.
Hai Phong
As the main gateway for Northern Vietnam, our team provides timely and accurate bunker surveys in Hai Phong to ensure smooth operations for all vessel types.
Da Nang
At the hub of Central Vietnam, we provide comprehensive bunker surveys in Da Nang, supporting the region’s growing logistics and shipping activities.
Quy Nhon
Serving the central highlands, we offer reliable bunker surveys in Quy Nhon, ensuring accuracy for vessels handling agricultural and wood product exports.
Comprehensive Marine & Cargo Services in Vietnam
Beyond bunkering, we offer a full suite of services across Vietnam to protect your assets and interests.
Draft Surveys
For bulk cargo shipments like rice, coffee, coal, and clinker, a draft survey is the most reliable method of weight determination. Our expert surveyors meticulously measure the vessel’s displacement before and after loading/discharging to accurately calculate the cargo quantity, providing an independent basis for Bills of Lading and preventing commercial disputes.
Cargo Discharge/Loading & Tally Surveys
We provide on-site supervision of cargo operations to ensure proper handling, stowage, and securing. Our tally clerks conduct a piece-by-piece count of breakbulk, bagged goods (like rice), and project cargo, verifying quantities against shipping documents to prevent short-landing or over-landing claims.
Ship Condition Surveys
Before a vessel goes on or off-hire, a thorough condition survey is essential. We document the vessel’s structural integrity, cargo spaces, and equipment. This detailed report, complete with photographic evidence, serves as crucial proof of the vessel’s condition at the point of handover, protecting both ship owners and charterers from claims for pre-existing damages.
Loss Prevention
Our proactive loss prevention services are designed to mitigate risks before they result in a claim. We assess and advise on all aspects of the supply chain, from packaging and container stuffing to cargo securing and handling procedures. By identifying potential hazards early, we help you reduce insurance claims, protect your cargo, and enhance operational safety.
Trusted for Marine Surveys in Vietnam
Our clients depend on our expertise for accurate and reliable surveys in all major Vietnamese ports.
“We required an urgent off-hire bunker survey in Ho Chi Minh City. Observater’s detailed report was invaluable. They are our trusted partners for all operations in Southern Vietnam.”
– Fleet Superintendent, Major Container Line
“The accuracy of Observater’s draft surveys for our exports via Hai Phong is critical for our business. Their professionalism and reliability are second to none. Highly recommended.”
– Head of Logistics, Manufacturing Exporter
Our Process for Bunker Surveys in Vietnam
We follow a rigorous, transparent process to ensure every bunker survey in Vietnam is accurate and conclusive.
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1
Pre-Survey Analysis
For every bunker survey in HCMC, Vung Tau, or Da Nang, we begin by reviewing all vessel details, tank calibration tables, and previous survey reports to identify potential areas of concern before our surveyor even steps on board.
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2
Onboard Measurement & Verification
Our bunker surveyors in Vietnam, along with the Chief Engineer from both vessels, manually sound every tank using certified equipment. This critical step ensures all parties witness the measurements firsthand.
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3
API/ASTM Standard Calculations
We apply all necessary corrections for trim, list, and temperature to the soundings. This guarantees our calculations for the final quantity are accurate and adhere to the highest international standards for bunker surveys.
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4
Definitive Reporting
A detailed report is prepared for every bunker survey in Vietnam. It includes all measurements, calculations, photographs, and a summary of findings, providing you with a definitive and actionable document.
Our Surveys in Action
Our surveys are conducted by highly trained and experienced professionals, providing you with unparalleled on-the-ground expertise.

Bunker Surveys

Tank Gauging

Faulty Gauge Checks

Bunker Level Inspection

Actual Bunker Level ID

Gauge Testing
Frequently Asked Questions
Why do I need an independent surveyor for bunkering in Vietnam?
An independent surveyor acts as an impartial expert representing your interests. While the chief engineers of both vessels are present, their primary duty is to their employers. Our surveyor’s only duty is to provide a true account of the fuel quantity, preventing disputes and ensuring you get what you paid for in all Vietnamese ports.
Can you attend vessels at anchorage in Vung Tau or Da Nang?
Absolutely. We are fully equipped to attend vessels at all major anchorages in Vietnam, which are common locations for bunkering. Our surveyors can be dispatched quickly to provide On-Hire/Off-Hire and BQS services offshore.
What is the “cappuccino effect”?
The “cappuccino effect” is a fraudulent practice where air is pumped into the bunker fuel during delivery. This creates foam and froth, making the fuel level in the tank appear higher than it actually is. Our experienced surveyors are trained to detect such malpractices to ensure accurate measurements.
Secure Your Operations in Vietnam
Don’t leave your most significant operational expenses to chance. Appoint Vietnam’s leading marine and bunker survey experts to ensure accuracy, prevent loss, and protect your bottom line in all major ports.
Contact Our Vietnam Desk Now