The Foreign Ministry team responsible for handling Japan's trade disputes will undergo a revamp to better deal with cases brought to the World Trade Organization, government sources said Wednesday.

The move comes after Japan last year lost its bid to overturn a South Korean ban on imports of Japanese seafood in the wake of the 2011 Fukushima nuclear disaster, and as the neighboring countries are locked in a feud over export controls on tech-related materials.

The WTO said the same day it has decided to set up a panel to hear the case on the export spat.