SEOUL, Feb 21 (Reuters) - The following are stocks on the move on Friday on the Korea Stock Exchange:
**SK TELECOM SLUMPS AFTER SK CORP CHIEF SUMMONED**
Shares in SK Telecom Co skidded 4.08 percent to 164,500 won, after the chairman of SK Corp , the largest shareholder in the mobile carrier, was summoned by prosecutors over investigation into possible illegal stock trade. see related story [nSEO187307].
0152 GMT
**KOOKMIN BANK DROPS ON REPORTS OF MARKET SHARE FALL**
Kookmin Bank shares fell 2.04 percent to 40,900 won after the bank, the country's biggest lender, said its market share in savings deposits and household loans declined last month.
Kookmin Bank blamed aggressive marketing by its competitors for the drop, but added it would not engage in any reckless expansionary moves to gain market share but instead focus on profitability.
The bank gave no further details.
0105 GMT
**KIA MOTORS UP AFTER STRONG Q4 RESULTS**
Kia Motors Corp gained 2.19 percent to 7,940 won, after the company, the country's second-biggest car maker, unveiled upbeat fourth-quarter results late on Thursday.
The affiliate of Hyundai Motor also plans to allot a five percent cash dividend, or 250 won per share this year, for the first time in seven years. See related story [nSEO108100].
0031 GMT
**POSCO REBOUNDS AFTER RECENT FALLS**
POSCO Co, the world's number-two steel maker, rose 1.36 percent to 111,500 won after falling more than four percent on Thursday.
Fears over the fate of its chairman Yoo Sang-boo triggered the heavy losses, as some state-run financial institutions, who also are large shareholders in POSCO, want to see Yoo out. But the Maeil Business Newspaper said on Friday foreign investors, who have a majority of voting rights, could support him, because of his positive performance.
0022 GMT