Views: 0 Author: Site Editor Publish Time: 2026-01-12 Origin: MIC
Core Definitions
DEM: Daily accumulated fees charged by ports or shipping lines when cargo stays at the port terminal beyond the allowed free time.
DET: Daily accumulated fees incurred when a container is taken out of the port but not returned to the shipping company within the specified timeframe.
Key Causes
DEM: Port congestion, customs clearance delays, failure to arrange timely cargo pickup, missing cutoff times.
DET: Inefficient warehouse unloading, supply chain disruptions, temporary storage using containers, failure to return empty containers promptly.
Correlative Impact: Missing cutoff times may cause cargo to be detained at the port (incurring DEM), and simultaneous occupation of containers may result in overlapping DET.
Cost Impact
Cost Characteristics: Both are daily accumulated charges; in scenarios of port congestion or supply chain disruptions, they may lead to high expenses of thousands of dollars, eroding corporate profits.
Avoidance Strategies
Plan Customs Clearance in Advance: Prepare all documents before cargo arrival to avoid customs delays.
Adopt Digital Tracking: Use real-time cargo tracking systems to anticipate potential delays and intervene promptly.
Arrange Transport Efficiently: Plan trucking, rail, and other pickup methods in advance to avoid failure to pick up within free time.
Optimize Warehouse Operations: Improve unloading efficiency to ensure timely return of empty containers.
Strengthen Multi-Party Coordination: Maintain close communication with freight forwarders, shipping lines, and port authorities to sync key nodes such as cutoff times.
Monitor Cutoff Times Closely: Track deadlines via automated scheduling tools to ensure cargo arrives at the port on time for scheduled shipments.

SHIJUN Automobile Factory
Automotive Body Parts Manufacturer
OEM / ODM | Sample & Drawing Based
Design • Tooling • Production
Factory Direct • No Middle Margin