SEOUL, March 4 (Reuters) - South Korea's main KOSPI share index was down 0.03 percent at 2,025.93 as of 0041 GMT.
The index opened up 0.1 percent at 0000 GMT as trading resumed after a public holiday on Friday.
Stocks on the move on Monday include:
Shares in Hyosung Corp fell 5.8 percent in early trading on Monday after news of a block deal last week and lacklustre quarterly earnings hurt investor sentiment.
Local newspaper Korea Economic Daily reported late on Thursday that Cho Hyun-moon, a son of Hyosung Group Chairman Cho Suck-rai, planned to sell a 6.8 percent stake in Hyosung Corp in a block deal over Thursday and Friday at a discount of 6.2-9.7 percent from Thursday's closing price.
The news came after Hyosung reported on Tuesday a fourth-quarter operating profit of 6 billion won ($5.54 million), a 91 percent drop from the same quarter in 2011 and below market consensus.
Hyosung Corp, a de facto holding company of Hyosung Group, is a synthetic fibre and heavy industrial equipment producer.
Shares in NHN Corp rose 3.8 percent in early trading on Monday after South Korean regulators scrapped a proposal for rules that sought to limit financial payments and losing bets in online board games.
"The news is very positive for NHN as it will take quite a while for alternative regulations to take shape, and concerns over an abrupt drop in online board game sales have eased," said Hong Jong-gil, an analyst at Korea Investment & Securities. ($1 = 1082.8250 Korean won) (Reporting by Joyce Lee; Editing by Anand Basu)