Navigating the Risks: A Must-Read for Importers on the Safe Shipping of Mineral Concentrates

—— A Focus on Shipping Mineral Concentrates from China

To: International Buyers, Supply Chain Managers, and Logistics Professionals

From: A Trusted Partner in Global Logistics

As a leading international freight forwarder based in Shenzhen, China, we are at the heart of global trade. Our daily mission is to ensure your goods—from consumer electronics to industrial raw materials—move safely and efficiently across the oceans. Today, we wish to highlight a critical, yet often overlooked, aspect of maritime safety that directly impacts the security of your cargo, the vessels that carry it, and the entire supply chain: the transportation of solid bulk cargoes, particularly those prone to liquefaction.

Recent enforcement actions by China's Maritime Safety Administration (MSA), particularly in ports like Quanzhou, have underscored a persistent and dangerous practice: the misdeclaration of cargo. This advisory aims to demystify the risks, clarify regulations, and outline the shared responsibilities that ensure safe passage for all.

Understanding the Danger: It's Not Just "Dirt"

Solid bulk cargoes, such as mineral ores and concentrates, are classified under the International Maritime Solid Bulk Cargoes (IMSBC) Code into Groups A, B, and C based on their hazards.

Group A (Cargoes that may liquefy): This is our primary concern. Cargoes like iron ore concentrate, nickel laterite, and certain clay minerals fall into this category. They contain fine particles and moisture. If shipped with a moisture content exceeding their Transportable Moisture Limit (TML), they can undergo liquefaction during a voyage due to the ship's vibration and motion.
The Consequence: Liquefaction turns a solid pile into a viscous fluid, creating a free surface effect inside the cargo hold. This can catastrophically shift the vessel's center of gravity, leading to a severe loss of stability, potentially causing the ship to list abruptly and even capsize within minutes. This is not a theoretical risk; it has been a direct cause of total losses and seafarer fatalities.

The Alarming Reality: Case Studies from the Frontline

Chinese maritime authorities have documented repeated instances of misdeclaration, where high-risk Group A cargoes were falsely declared as inert Group C materials (e.g., "sand" or "feldspar"). In 2024 alone, inspections in Quanzhou uncovered multiple violations:

A vessel loading 4,200 tons of declared "sand" was found to be carrying approximately 3,300 tons of a moist, powdery substance. Laboratory analysis confirmed it as a Group A mineral product.
Upon discharge, a shipment declared as "feldspar" was found to have a hold containing 4,800 tons of fine powder, which was identified as "diopside," a Group A cargo.
Even at the storage yard, cargo declared as "feldspar" was identified as a potential Group A hazard before loading, prompting corrective action.

The Common Thread: In each case, the shipper (consignor) failed to provide the mandatory documentation and deliberately misdeclared the cargo to avoid stricter (and costlier) handling procedures for dangerous goods. This negligence transfers immense, unacceptable risk to the carrier, the crew, and ultimately, the security of your supply chain.

The Regulatory Framework: What Legitimate Shipments Require

The Regulations on Safety Supervision of Maritime Transport of Solid Bulk Cargoes in China mandates a clear chain of responsibility:

The Shipper's (托运人) Obligation: They must provide the carrier and MSA with a Declaration on the Safety of Solid Bulk Cargoes for Shipment, along with certified laboratory reports for the cargo's Transportable Moisture Limit (TML) and actual Moisture Content (MC). They must also implement sampling and testing procedures.
The Carrier's (承运人) & Master's Duty: Before loading, the ship's captain must verify all documentation. Cargo with moisture content exceeding TML must be refused. The vessel must also prepare cargo holds, ensure proper drainage, and follow strict loading and trimming procedures.
Penalties for Non-Compliance: Violations, such as failing to report or submitting false information, can result in fines from RMB 3,000 to 30,000 imposed on the shipper or ship operator by the MSA.

A Shared Responsibility: How Knowledgeable Importers Can Mitigate Risk

Your role as the buyer and cargo owner is pivotal. A proactive approach protects your investment and reputation.

Know Your Cargo: When purchasing mineral products, ask your supplier for the official IMSBC Group classification and the commodity's proper shipping name. Do not accept vague descriptions like "ore" or "mineral sand."
Demand Documentation: As part of your procurement and shipping instructions, require the supplier/shipper to provide the Safety of Solid Bulk Cargoes Declaration, TML Certificate, and Moisture Content Certificate before the cargo is delivered to the port. Your freight forwarder can review these.
Engage Expert Partners: Work with a freight forwarder and ship operator who demonstrate clear expertise in solid bulk cargo regulations. They should have robust procedures to verify documentation and identify "red flags."
Audit Your Supply Chain: Include cargo declaration accuracy and compliance with the IMSBC Code as a criterion in your supplier evaluations. Responsible suppliers understand and follow these safety rules.

Conclusion: Safety is the Foundation of Reliability

At Goodhope Freight, we view regulatory compliance not as a hurdle, but as the foundation of reliable, secure logistics. The misdeclaration of cargoes that may liquefy is a serious threat to lives, assets, and supply chain integrity. By understanding these risks, insisting on transparency, and partnering with knowledgeable logistics providers, the international trading community can ensure that the journey of goods from source to destination is safe for all concerned.

Let's work together to ship smarter and safer.

Pre-Shipment Checklist for Mineral Concentrates from China

✔ Obtain official IMSBC Code Group classification from supplier (A/B/C)
✔ Request certified TML (Transportable Moisture Limit) report from accredited lab
✔ Request certified Moisture Content (MC) report (must be below TML)
✔ Verify proper shipping name – reject vague descriptions like "sand" or "ore"
✔ Ensure Shipper provides Declaration on Safety of Solid Bulk Cargoes to carrier and MSA
✔ Confirm carrier has verified documentation before loading
✔ Ensure cargo holds are clean, dry, and have proper drainage
✔ Verify trimming and loading plan for even weight distribution
✔ Include compliance criteria in supplier evaluation and audit process

Disclaimer: This guide is based on IMSBC Code and Chinese maritime regulations. Regulations are subject to change. Always consult your freight forwarder and certified dangerous goods personnel before shipping bulk cargo.