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14 articles
Ocean

Dangerous Goods Shipping: Classes, Documents & Surcharges

Shipping lithium batteries, paints, chemicals, or any pressurized cargo means navigating strict IMDG hazard classifications, mandatory declarations, and carrier-levied DG surcharges — all before the goods reach the port gate. Here is what importers and exporters need to know, prepare, and budget for.

Holo Cargo Operations·Jun 24, 2026·7 min
Air

Chargeable Weight in Air Freight, Explained with Examples

Airlines charge for whichever is greater — actual weight or the space your cargo takes up, converted to kilograms. For bulky, lightweight goods the volumetric calculation usually wins, pushing your bill well above what a scale would suggest. This guide explains the formula, walks through worked examples, and shows where you can trim costs before booking.

Holo Cargo Operations·Jun 23, 2026·7 min
Ocean

How to Ship Reefer Cargo: Temperature-Controlled Freight Guide

Reefer containers keep temperature-sensitive cargo viable across long ocean voyages — but booking one is more complex than a standard dry box. This guide covers the hardware, the temperature and ventilation settings, the documentation, and the planning moves that prevent cold-chain failures at sea.

Holo Cargo Operations·Jun 22, 2026·8 min
Ocean

Rolled Cargo Explained: Why It Happens and How to Avoid It

When a carrier removes your shipment from its scheduled sailing and loads it onto a later vessel, your cargo has been "rolled." It happens more often than shippers expect — and it always costs something. Here's what drives it, what it actually costs, and how to cut your exposure.

Holo Cargo Operations·Jun 21, 2026·8 min
Customs

Why Cargo Gets Held at Customs — and How to Prevent It

A customs hold can freeze your shipment for days or weeks, with demurrage charges accumulating the entire time. This guide covers the most common reasons cargo is stopped at customs — from documentation errors to inspection triggers — and the concrete steps importers and exporters can take to prevent delays before they start.

Holo Cargo Operations·Jun 20, 2026·8 min
Customs

ISF (10+2) Filing: What US Ocean Importers Need to Know

The Importer Security Filing — known as ISF or "10+2" — is mandatory for every ocean shipment entering the United States. It must reach US Customs before the vessel departs the origin port, not when cargo arrives. Miss the deadline and CBP can issue fines, block your shipment from loading, or flag it for a costly intensive examination on arrival.

Holo Cargo Operations·Jun 19, 2026·8 min

From the desk

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