Công ty Cổ phầm Giám Định Hàng Hải Việt

WHAT WE COMMONLY CONFIRM DURING PRE-LOADING CARGO INSPECTIONS

quantri — Thu, 25 Jun 2026 06:48:13 +0000

In most cargo damage investigations, the final loss is rarely a surprise to an experienced surveyor. The underlying pattern is something we repeatedly observe and document during pre-loading inspections — long before the vessel sails.

The Consistent Field Findings

Across different vessel types, trades, and cargoes, our independent hold readiness surveys consistently confirm the same recurring conditions:

🔹 Hatch Cover Performance

Assemblies that pass static hose tests at berth but show reduced sealing reliability under dynamic sea conditions and hull flexing.

🔹 Hidden Moisture Reservoirs

Residual water trapped in bilges, tank tops, or structural recesses that survives routine cleaning procedures.

🔹 Superficial Cleanliness

Cargo holds that appear visually acceptable but still retain trace chemical or biological residues from previous cargo operations.

🔹 Logbook Ventilation Practice

Ventilation actions correctly recorded, but not aligned with real-time dew point and atmospheric conditions at sea.

The Crucial Observation: Cumulative Risk

Individually, these conditions are rarely treated as critical during loading operations

They are typically classified as:

Acceptable
Within tolerance
Operationally normal

However, in forensic reality, these are exactly the pre-existing conditions later identified in major cargo claim investigations.

Why This Matters: The Interaction Effect

Once the vessel sails, these conditions do not remain isolated.

Under voyage conditions, they begin to interact through:

Temperature variation
Vessel motion
Moisture migration
Condensation cycle

By the time cargo damage is detected at discharge, the deterioration process has already completed at sea.

The VM Control Perspective

Most cargo claims are not caused by sudden failure during the voyage.

They are the predictable outcome of pre-existing deficiencies that were not technically verified before loading.

This is why our inspections focus on what routine checks overlook:

We do not assess whether a cargo space looks acceptable.

We assess whether it is technically ready for the specific cargo under real voyage conditions.

Closing Principle

Cargo risk must be treated as a technical verification process — not a visual formality.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

📍 Address: 1831/10/9 Huynh Tan Phat Street, Quarter 2, Nha Be Commune, Ho Chi Minh City, Vietnam
📞 Hotline: +84 981 600 440 / +84 918 114 742
🌐 Website: www.vietmarinecontrol.com.vn
📧 Email: survey@vietmarinecontrol.com.vn
🔵 Linkedin: www.linkedin.com/in/vm-control-234252386

CARGO CLAIM PREVENTION SURVEY

quantri — Mon, 22 Jun 2026 09:31:24 +0000

Protect Cargo Integrity Before the Vessel Sails

Most maritime cargo claims are not created at sea.

They are triggered by risks already present at the loading stage.

The Real Issue: Hidden Cumulative Failures

Cargo damage is rarely caused by a single event.

It is usually the result of multiple small, overlooked conditions inside the cargo space:

🔹 Hatch Cover Limitations

Seals may pass static hose tests but fail under dynamic sea conditions and hull flexing.

🔹 Hidden Moisture Sources

Water trapped in bilges, tank tops, or structural recesses often remains undetected before loading.

🔹 Superficial Cleanliness

Holds may appear clean but still contain invisible residues from previous cargo operations.

🔹 Routine-Based Ventilation

Ventilation decisions based on habit rather than dew point and real environmental data.

Individually acceptable. Collectively critical.

Why It Matters: The Point of No Return

At the loading port, everything may appear compliant and well documented.

But once the vessel sails, conditions change rapidly — and hidden risks become active:

Moisture migration
Condensation formation
Cargo chemical or physical reaction
Once these processes start, they cannot be reversed at sea

By discharge, the result is already locked in.

The VM Control Approach

We assess cargo readiness risk beyond visual acceptance.

Our independent inspections focus on real loading conditions:

✔ Hatch cover integrity under operational stress conditions

✔ Cargo hold structural and moisture risk assessment

✔ Detection of hidden contamination sources

✔ Technical cleanliness verification beyond visual checks

✔ Ventilation risk evaluation based on actual voyage environment

We replace assumption with verified condition.

Request Inspection

If you are involved in chartering, cargo operations, or marine risk decisions, your exposure is defined before sailing — not after arrival.

👉 Early verification reduces claim exposure

👉 Condition-based assessment reduces uncertainty

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

WHY OPENING THE VENTILATORS DOES NOT ALWAYS MEAN PROPER VENTILATION?

quantri — Thu, 18 Jun 2026 06:57:03 +0000

When cargo damage caused by sweat or moisture is discovered at the discharge port, a common assumption often appears in the voyage records: “The holds were ventilated during the voyage.”

At first glance, this may seem reasonable. Ventilation is a standard practice on many bulk carriers. However, in moisture-sensitive cargoes, it is not a routine action — it is a condition-based decision that directly determines cargo outcome. In many cases, incorrect ventilation accelerates moisture damage rather than preventing it.

The effectiveness of ventilation depends entirely on environmental conditions at the exact time it is applied. Before relying on it as a protective measure, four critical factors must be correctly assessed:

Dew Point Mismatch Between Outside Air and Cargo Hold

Ventilation is only safe when the outside air has a lower dew point than the air inside the hold. When warm, humid air enters a cooler environment, condensation forms immediately on steel structures and cargo surfaces. This “cargo sweat” effect can start within minutes and cannot be reversed during the voyage.

Rapidly Changing Weather Conditions

At sea, atmospheric conditions can change within hours. A ventilation decision that is safe in the morning may become unsafe by afternoon. Open ventilators during rain, heavy seas, or high humidity expose the cargo space to direct moisture ingress, including seawater spray in exposed conditions.

Routine-Based Operational Decisions

In many vessels, ventilation is still applied by habit rather than measurement. Fixed schedules, incomplete instructions, or routine practices often replace dew point analysis and humidity checks. When this happens, ventilation becomes assumption-based rather than condition-based.

Non-Uniform Airflow in Bulk Cargoes

Air distribution inside a cargo hold is rarely uniform. In dense bulk cargoes such as grain, fertilizers, or biomass, airflow often bypasses large sections of the cargo mass. This leads to partial ventilation — affecting only surface layers while moisture remains trapped deeper inside the cargo.

Why It Matters?

Ventilation decisions at sea are rarely made under ideal conditions. Once condensation or moisture migration begins, damage develops progressively and is difficult to control.

For moisture-sensitive cargoes such as grain, fertilizers, cement, and steel products, even small errors in ventilation practice can result in caking, corrosion, biochemical reaction, and significant cargo claims.

The VM Control Approach

At VM Control, we do not only record whether ventilation was carried out. We assess whether it was correct for the actual atmospheric and cargo conditions at the time.

Through structured inspection and condition-based evaluation, we help stakeholders understand whether ventilation decisions protected — or compromised — cargo integrity during the voyage.
Because effective ventilation is not defined by action. It is defined by timing, condition, and judgment under real operating pressure.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

CARGO CONDITION INSPECTION AND LOADING SUPERVISION

quantri — Wed, 17 Jun 2026 02:14:30 +0000

In the maritime transportation industry, ensuring that cargo is loaded onboard in sound condition and handled in accordance with proper loading procedures is essential to minimizing the risk of damage, loss, and subsequent cargo claims. Viet Marine Control Joint Stock Company (VM CONTROL) provides independent and professional Cargo Condition Inspection and Loading Supervision services to protect the interests of cargo owners, charterers, carriers, and other stakeholders.

Purpose of the Service

The primary objectives of Cargo Condition Inspection and Loading Supervision are to:

Verify the apparent condition of cargo prior to loading.
Confirm compliance with transportation requirements and cargo specifications.
Monitor loading operations to reduce the risk of damage during handling.
Record factual observations through detailed reports and photographic evidence.
Provide independent documentation for claim prevention and dispute resolution.

Scope of Inspection and Supervision

Our surveyors conduct thorough inspections to:

Assess the apparent condition of cargo before loading.
Examine packaging, markings, and labels.
Identify any signs of damage, contamination, wetting, corrosion, deformation, or shortage.
Verify cargo quantity and type against available shipping documents.

Loading Supervision

Observe cargo handling practices and loading procedures.
Ensure proper stowage and securing arrangements.
Verify compliance with safety requirements and cargo handling instructions.
Record any irregularities, incidents, or operational issues that may affect cargo condition.

Reporting

Upon completion of the survey, VMC issues a comprehensive report containing:

Findings on the cargo condition prior to loading.
Observations made during loading operations.
Photographic evidence and supporting documentation.
Professional comments, conclusions, and recommendations where applicable.

Benefits to Clients

By engaging Cargo Condition Inspection and Loading Supervision services, clients can:

Minimize the risk of cargo damage and loss.
Protect their commercial and contractual interests.
Obtain reliable evidence regarding the cargo condition at the time of shipment.
Reduce the likelihood of disputes and cargo claims.
Enhance transparency throughout the loading process.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

WHY A DRY CARGO HOLD IS NOT ALWAYS READY FOR MOISTURE-SENSITIVE CARGO?

quantri — Mon, 15 Jun 2026 03:08:12 +0000

When moisture damage is discovered at the discharge port, a common explanation often follows: “But the cargo hold was clean and dry at the loading port.”

In many cases, the hold did appear dry during inspection. Yet cargo claims involving moisture damage continue to occur on commodities that are highly sensitive to water.

The reason is straightforward: Dry to the eye does not always mean dry enough for cargo. A visual inspection alone cannot always reveal hidden moisture sources that may affect cargo condition during the voyage.

Before accepting a hold for loading, there are four critical areas that deserve careful attention:

Hidden Moisture in Bilge Wells

A cargo hold may appear dry while residual wash water remains trapped inside bilge wells or beneath bilge plates. If not properly drained and dried, this moisture can evaporate during the voyage and increase humidity inside the hold.

Condensation on Steel Structures

Changes in sea and air temperatures can cause condensation to form on steel structures inside the hold. Moisture may develop on bulkheads, under-deck areas, and other steel surfaces, eventually dripping onto the cargo.

Damp Areas in Hidden Spaces

Water from hold washing can remain trapped in hard-to-reach areas that appear dry during a routine inspection. Over time, this hidden moisture may gradually affect cargo condition, particularly during longer voyages.

Moisture from Adjacent Spaces

A cargo hold does not exist in isolation. Condensation or minor seepage from neighboring tanks and surrounding structures can introduce moisture into an otherwise dry hold.

Why It Matters

At the loading berth, a hold may appear clean and dry. Once at sea, however, changing temperatures and vessel movement can activate hidden moisture sources that were not obvious during inspection.

For commodities such as cement, steel products, fertilizers, and grain, even small amounts of moisture can result in cargo deterioration, contamination, rust, caking, or other forms of damage that lead to costly claims.

The VM Control Approach

Our cargo hold readiness surveys go beyond a basic visual inspection. We focus on identifying hidden moisture risks, assessing critical areas within the hold, and documenting actual hold conditions before loading begins.

Through detailed inspections and proper documentation, VM Control helps shipowners, operators, charterers, and cargo interests reduce the risk of avoidable moisture-related cargo claims.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

WHY A PASSED HOSE TEST DOES NOT ALWAYS MEAN A WATERTIGHT HATCH?

quantri — Fri, 12 Jun 2026 03:29:30 +0000

When water-damaged cargo is discovered at the discharge port, one question often follows: “Didn’t the hatch cover pass the hose test before sailing?”

In many cases, it did. Yet cargo claims involving moisture ingress continue to occur on vessels whose hatch covers successfully passed hose testing before departure.

The reason is straightforward: A passed hose test does not guarantee watertight integrity throughout the voyage. It only confirms that no leakage was detected during the test at that particular moment.

Before relying solely on a hose test result, there are four critical areas that deserve attention:

Rubber Gaskets

A gasket may appear intact and still fail to perform effectively. As rubber ages, it loses elasticity and its ability to maintain sealing pressure when the vessel flexes and moves at sea.

Compression Bars

Even a good gasket cannot compensate for a worn or distorted compression bar. Corrosion, wear, and uneven surfaces can reduce sealing effectiveness and create potential leakage paths.

Drainage Arrangements

Blocked drain channels or defective non-return valves can prevent water from draining properly. Water accumulation around the hatch system increases the risk of moisture ingress into the cargo hold.

Hatch Panel Alignment

Poor panel alignment can result in uneven gasket compression. While this may not be evident during a short hose test, it can become critical during heavy weather and vessel movement.

Why It Matters

At the berth, the hatch may pass the test. At sea, the sealing system faces entirely different conditions.

A hose test is an important inspection tool, but it should never be considered the sole indicator of hatch cover condition. Watertight integrity depends on the performance of the entire sealing system, not just the test result.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

TẠI SAO THỬ KÍN NƯỚC ĐẠT YÊU CẦU CHƯA HẲN NẮP HẦM HÀNG ĐÃ KÍN NƯỚC?

quantri — Fri, 12 Jun 2026 03:26:44 +0000

Khi phát hiện hàng hóa bị tổn thất do ngấm nước tại cảng dỡ hàng, một câu hỏi thường được đặt ra: “Chẳng phải nắp hầm hàng đã đạt yêu cầu thử kín nước (hose test) trước khi tàu rời cảng hay sao?” Trong nhiều trường hợp, câu trả lời là có. Tuy nhiên, các khiếu nại tổn thất hàng hóa do nước xâm nhập vẫn tiếp tục xảy ra trên những con tàu mà nắp hầm hàng đã đạt yêu cầu thử kín nước trước khi khởi hành. Lý do rất đơn giản:

Đạt yêu cầu thử kín nước không đồng nghĩa với việc nắp hầm hàng sẽ duy trì độ kín nước trong suốt chuyến đi biển.
Kết quả đó chỉ cho thấy không phát hiện hiện tượng rò rỉ tại thời điểm thử nghiệm.

Trước khi hoàn toàn dựa vào kết quả của một bài thử kín nước, có bốn hạng mục cần được đặc biệt lưu ý:

1. Gioăng Cao Su

Một gioăng cao su nhìn bề ngoài vẫn còn nguyên vẹn nhưng chưa chắc còn khả năng làm kín hiệu quả. Theo thời gian, cao su bị lão hóa, mất dần độ đàn hồi và không còn duy trì được lực ép cần thiết khi thân tàu biến dạng và chuyển động trên biển.

2. Thanh Ép Gioăng

Ngay cả một gioăng tốt cũng không thể bù đắp cho thanh ép gioăng bị mài mòn hoặc biến dạng. Tình trạng ăn mòn, hao mòn hoặc bề mặt tiếp xúc không đồng đều có thể làm giảm hiệu quả làm kín và tạo ra các vị trí rò rỉ tiềm ẩn.

3. Hệ Thống Thoát Nước

Rãnh thoát nước bị tắc hoặc van một chiều (non-return valve) hoạt động không hiệu quả sẽ khiến nước không thể thoát đi như thiết kế. Nước tích tụ quanh hệ thống nắp hầm làm gia tăng nguy cơ xâm nhập vào hầm hàng.

4. Độ Căn Chỉnh Của Các Tấm Nắp Hầm

Sự sai lệch giữa các tấm nắp hầm có thể làm lực ép lên gioăng phân bố không đồng đều. Điều này có thể không được phát hiện trong thời gian ngắn của bài thử vòi rồng, nhưng lại trở thành điểm yếu nghiêm trọng khi tàu gặp thời tiết xấu hoặc chuyển động mạnh trên biển.

Tại Sao Điều Này Quan Trọng?

Khi tàu còn nằm tại cầu cảng, nắp hầm hàng có thể đạt yêu cầu thử nghiệm. Nhưng khi ra biển, toàn bộ hệ thống làm kín phải làm việc trong những điều kiện hoàn toàn khác.

Thử vòi rồng là một phương pháp kiểm tra quan trọng, nhưng không nên được xem là tiêu chí duy nhất để đánh giá tình trạng nắp hầm hàng. Độ kín nước phụ thuộc vào khả năng hoạt động của toàn bộ hệ thống làm kín, chứ không chỉ dựa trên kết quả của một lần thử nghiệm.

MỌI CỬA NGÕ – MỘT TỐC ĐỘ 🚛

⚓ Các cảng TP.HCM ➔ Bà Rịa- Vũng Tàu ➔ Cái Mép ➔ Quy Nhơn ➔ Đà Nẵng ➔ Hải Phòng.

4 giờ có mặt – 12 giờ hoàn thành – 24 giờ phát hành chứng thư

THÔNG TIN LIÊN HỆ

CÔNG TY CỔ PHẦN GIÁM ĐỊNH HÀNG HẢI VIỆT – VM CONTROL

📍 Địa chỉ: 1831/10/9, Đường Huỳnh Tấn Phát, Khu phố 2, Xã Nhà Bè, TP. Hồ Chí Minh, Việt Nam

📞 Hotline: +84 981 600 440 / +84 918 114 742

🌐 Website: www.vietmarinecontrol.com.vn

📧 Email: survey@vietmarinecontrol.com.vn

🔵 Linkedin: www.linkedin.com/in/vm-control-234252386

SECURING COIL CARGO INSIDE CONTAINER – A CRITICAL FACTOR FOR SAFE TRANSPORTATION

quantri — Thu, 11 Jun 2026 03:18:16 +0000

The Importance of Proper Coil Cargo Securing

Coil cargoes such as steel coils, paper rolls, aluminum coils, wire coils, cable drums, textile rolls, and similar industrial products are typically heavy and inherently prone to rolling and shifting. When transported in containers, these cargoes are subjected to continuous dynamic forces arising from vessel motions, road vibrations, acceleration, deceleration, and handling operations.

Improper securing may result in cargo movement during transit, leading to cargo damage, container deformation, operational hazards, and, in severe cases, significant losses throughout the logistics chain.

Common Risks Associated with Coil Cargo Transportation

Based on VM Control’s extensive field experience, cargo shifting incidents are frequently attributed to:

Inadequate or improperly designed blocking and bracing arrangements.
Insufficient lashing or securing systems.
Use of unsuitable or weak dunnage materials.
Failure to consider dynamic transport loads during sea voyages.
Excessive void spaces between the cargo and container structure.

These deficiencies may lead to:

Cargo damage and loss.
Structural damage to container walls, doors, or flooring.
Rejection of insurance claims.
Commercial disputes among stakeholders.
Safety hazards during transportation and cargo handling operations.

Scope of Coil Cargo Securing Survey

To mitigate transportation risks, VM Control conducts independent inspections and assessments in accordance with recognized international cargo securing practices and maritime transportation standards.

Our survey scope includes:

1. Container Condition Inspection

Examination of container flooring condition.
Inspection of side walls, end walls, and container doors.
Verification of lashing points and securing arrangements.
Assessment of container suitability for the intended cargo.

2. Blocking and Bracing Assessment

Inspection of dunnage quality and condition.
Verification of blocking dimensions and positioning.
Evaluation of anti-rolling and anti-shifting arrangements.

3. Lashing System Verification

Quantity and adequacy of lashings.
Type and condition of securing materials used.
Lashing direction and securing geometry.
Tension and effectiveness of the securing system.

4. Safety Evaluation

Assessment of cargo stability during transportation.
Verification of securing arrangements against expected transport forces.
Identification of potential risks that may arise during the voyage.

Benefits of an Independent Securing Survey

Conducting an independent securing survey prior to container sealing provides several advantages:

Minimization of cargo damage risks.
Compliance with requirements from cargo owners, carriers, and insurers.
Independent evidence of cargo loading and securing conditions.
Reduction of potential claims and disputes.
Enhanced transportation safety throughout the logistics chain.

VM Control’s Services

With a team of experienced marine surveyors and cargo inspection specialists, VM Control provides professional cargo securing inspection services throughout Vietnam.

Our services include:

Loading Supervision.
Lashing and Securing Survey.
Pre-loading Container Condition Inspection.
Survey Certification for transportation and insurance purposes.
Technical consultation on cargo securing methods for specialized cargoes.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

WHY A CLEAN CARGO HOLD IS NOT ALWAYS A CARGO-READY HOLD?

quantri — Mon, 08 Jun 2026 03:00:06 +0000

When cargo contamination is discovered at the discharge port, attention often turns to the voyage itself. In reality, many contamination claims begin long before the vessel leaves the loading berth.

After more than 20 years attending hold inspections and cargo surveys, one lesson remains consistent: A clean cargo hold is not necessarily a cargo-ready hold.

Before approving any cargo hold for loading, there are three critical areas we always examine carefully:

1. Cargo Residues

Even when a hold appears clean, residues from previous cargoes may remain hidden in structural recesses, under hatch covers, or other hard-to-reach areas. During loading or throughout the voyage, these residues can become dislodged and contaminate the newly loaded cargo.

For sensitive commodities such as grain, sugar, feed products, and food-grade cargoes, even small amounts of foreign material can lead to disputes and cargo claims.

2. Loose Rust Scale and Flaking Paint

Not all rust presents a problem. However, loose rust scale and flaking paint can detach from the hold structure during normal vessel movement. These particles may fall into the cargo and cause contamination, particularly when carrying clean bulk cargoes with strict quality requirements.

What appears to be a minor maintenance issue at the loading port can become a significant claim at the discharge port.

3. Hidden Moisture

A cargo hold that looks dry is not always free from moisture. Residual wash water, moisture trapped in bilge wells, or condensation on steel structures can create serious risks for moisture-sensitive cargoes such as cement, steel products, fertilizers, and grain.

In many cases, the damage is only discovered when the cargo is discharged.

Why These Areas Matter?

At the loading port, these conditions often attract little attention. The hold looks clean. Loading proceeds as planned.

Yet when contamination or cargo damage is discovered at the discharge port, investigators frequently return to the same findings:

A hidden cargo residue.
Loose rust scale overhead.
Moisture left behind after cleaning.

Individually, each issue may appear insignificant. Together, they can create the conditions for costly cargo claims.

The VM Control Approach

Our hold inspections focus on more than cleanliness alone. The key question is not simply whether a hold looks clean, but whether it is suitable for the cargo it is intended to carry.

Through detailed inspections and proper documentation, VM Control helps shipowners, operators, charterers, and cargo interests reduce the risk of avoidable contamination and cargo damage claims.

Because a cargo hold does not become cargo-ready simply because it looks clean.

It becomes cargo-ready when it is clean, dry, contamination-free, and suitable for the intended cargo.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION
VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

WHY A CLOSED HATCH COVER IS NOT ALWAYS A WATERTIGHT HATCH COVER?

quantri — Thu, 04 Jun 2026 02:00:24 +0000

When wet cargo is discovered at the discharge port, heavy weather is often the first explanation. In many cases, however, the root cause existed long before the vessel encountered rough seas.

After more than 20 years attending loading operations and hatch inspections, one lesson remains consistent: A closed hatch cover is not necessarily a watertight hatch cover.

Before signing a Hatch Closure Report, there are three critical areas we always inspect:

Non-Return Valves & Drain Channels

A clean drain channel alone is not enough. If a non-return valve is seized or blocked by cargo residues, water cannot drain effectively, increasing the risk of moisture ingress into the cargo hold.

Rubber Gaskets

Visible damage is only part of the picture. Loss of elasticity, permanent deformation, and uneven compression can significantly reduce sealing performance, even when a gasket appears intact.

Compression Bars

A gasket can only perform as well as the surface it seals against. Corrosion, wear, or distortion of compression bars can compromise watertight integrity and increase the likelihood of cargo damage.

Why These Components Matter

At the loading port, these findings rarely delay a vessel. At the discharge port, they often become the first items examined during a cargo claim investigation.

A blocked valve.
A hardened gasket.
A worn compression bar.

Individually, each may appear insignificant. Together, they can create the conditions for costly cargo damage.

The VM Control Approach

Our hatch cover inspections focus on identifying potential weaknesses before the vessel sails. Through detailed examination and proper documentation, we help shipowners, operators, charterers, and cargo interests reduce the risk of avoidable cargo claims.

Because a hatch cover does not become watertight simply because it is closed.

It becomes watertight only when every component of the sealing system performs as designed.

🚛⚓EVERY GATEWAY – ONE SPEED

📍 Ho Chi Minh City ➔ Ba Ria – Vung Tau ➔ Cai Mep ➔ Quy Nhon ➔ Da Nang ➔ Hai Phong….

⚡ 4 HOURS: On-site Attendance ⚡ 12 HOURS: Survey Completion ⚡ 24 HOURS: Certificate Issuance

CONTACT INFORMATION

VIET MARINE CONTROL JOINT STOCK COMPANY – VM CONTROL

📍 Address: 1831/10/9 Huynh Tan Phat Street, Quarter 2, Nha Be Commune, Ho Chi Minh City, Vietnam

📞 Hotline: +84 981 600 440 / +84 918 114 742

🌐 Website: www.vietmarinecontrol.com.vn

📧 Email: survey@vietmarinecontrol.com.vn

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