The main TAIEX index closed unchanged at 7,387.81.

Powerchip, Taiwan's biggest DRAM maker, shot up 6.43 percent, with electronics shares 0.67 percent higher.

Banking stocks shed 0.59 percent, while Chinatrust , Taiwan's top credit card issuer, slipped 0.59 percent.

The company said it planned to team up with China Development Bank (CDB) in asset management, private equity and venture capital.

The Taiwan dollar rose slightly to stand at T$30.205.

Foreign investors were net sellers on Wednesday, bringing their total selling to T$16.69 billion this month.