Compensation talks have broken down between Mitsubishi Heavy Industries and a group representing Korean women who were forced to work for the Japanese company during World War II, the group told reporters Monday.

The group demanded an official apology from Mitsubishi, payment of back wages and compensation, and the construction of a memorial. But Mitsubishi refused to pay individual compensation citing a ruling by a Japanese court in 2008 that such victims had been adequately compensated under the 1965 Normalization Treaty between Korea and Japan.

Around 140 Korean women who were forced to work for Mitsubishi in 1944 to produce munitions and other equipment for the Japanese Imperial Army filed a lawsuit against the Japanese company in 1999. A Tokyo court dismissed the case in November 2008.