Taiwan conglomerate Far Eastern Group is expanding into the mainland China retail market after investing NT$1 billion (US$28.9 million) in Pacific Liutong Investment Co, which controls 84 per cent of Pacific Department Store chain.

The investment will give Far Eastern a stake of more than 50 per cent in the Pacific chain. It is spending an additional US$2.5 billion on helping Pacific trim its debts.

Combined sales of the group's subsidiary Far Eastern Department Store and Pacific would be NT$100 billion a year on the Chinese mainland and in Taiwan.