Quick answer: TNS Log Services is a Johor Bahru-based freight forwarder and 3PL operator with operational reach through Port Klang, handling ocean freight, cross-border trucking between Malaysia and Singapore, customs clearance (including K1 declarations), HS code classification, and bonded warehouse storage. Their team manages the full documentation chain — packing lists, COA certificates, Bill of Lading coordination — so cargo moves through Westport or Northport without accumulating demurrage. For B2B shippers routing cargo through the JB corridor or Port Klang, they cover FCL, LCL, and heavy haulage under one operator.
Frequently Asked Questions
What customs documents does a shipper need ready before a container is released at Port Klang?
At minimum: a complete packing list with HS codes for every item, the Bill of Lading, commercial invoice, and a filed K1 declaration through the Dagang Net National Single Window. Sensitive goods — toys, baby products — often require a COA certificate. Missing any one of these stops clearance and starts the demurrage clock.
How long does customs clearance take at Port Klang if documentation is correct?
A clean, pre-filed shipment using Pre-Arrival Processing (PAP) through the SMK system typically clears in one to three working days. If the K1 is filed after vessel discharge, add one to two days. Errors on the packing list or wrong HS codes can push this to a week or more while storage charges mount.
What is the free-storage period at Port Klang, and when does demurrage start?
Westport and Northport typically allow three to five free days after container discharge. After that, demurrage and port storage charges apply daily. For LCL cargo at a deconsolidation warehouse, the free period is shorter — often two to three days. Confirm the exact window with your forwarder before the vessel arrives.
Why does a mixed-cargo shipment with many SKUs cause clearance problems in Malaysia?
Each item needs a correct HS code on the K1 declaration. A shipment mixing, say, baby strollers and toys across 200 lines without a structured packing list makes accurate HS classification impossible. Customs can hold the entire container pending a full inventory audit. This is when demurrage accumulates fastest — sometimes hundreds of ringgit per day.
For cross-border trucking from Johor Bahru into Singapore, what paperwork is required?
You need a valid customs permit (K1 or K2 depending on cargo status), truck permit for the Causeway or Second Link crossing, and a cargo manifest matching the Bill of Lading. Singapore side requires a TradeNet permit through ICA. JB-based forwarders familiar with both regulatory systems cut processing time significantly.



