Hanmi Semiconductor (KRX:042700) posted second-quarter operating income of 86.3 billion won, up 56% from 55.4 billion won a year earlier, according to a Tuesday filing with the Korea Exchange.

The semiconductor manufacturing equipment manufacturer's sales jumped 46% year over year to 180 billion won from 123.5 billion won.

Shares of Hanmi Semiconductor fell nearly 1% at market close.