* KOSPI falls, foreigners net buyers

* Korean won weakens against dollar

* South Korea benchmark bond yield falls

* For the midday report, please click

SEOUL, Jan 8 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares closed lower on Monday, as investors tracked lacklustre sentiment in China's blue-chip stocks amid uncertainties over market regulation in Beijing. The won weakened, while the benchmark bond yield fell.

** The benchmark KOSPI closed down 10.26 points, or 0.40%, at 2,567.82.

** China's blue-chip index fell to its lowest level in nearly five years on Monday, while Hong Kong stocks shed roughly 2%, amid rising geopolitical tensions and weak confidence in Beijing's economy.

** China's securities regulator is allowing mutual fund managers to sell more shares than they buy each day, three sources said, removing a ban introduced late last year aimed at propping up a flagging stock market.

** South Korea's finance minister said on Monday the government will expand the size of a market stabilizing fund from the current 85 trillion won ($64.74 billion), if needed, as risks related to builder Taeyoung Engineering & Construction can increase.

** Among index heavyweights, chipmaker Samsung Electronics fell 0.13% and peer SK Hynix lost 1.09%, while battery maker LG Energy Solution slid 0.24%.

** Hyundai Motor shed 0.85% and sister automaker Kia Corp lost 2.95%, while search engine Naver and instant messenger Kakao were up 2.72% and 2.51%, respectively.

** Of the total 939 traded issues, 361 shares advanced, while 501 declined.

** Foreigners were net buyers of shares worth 173.3 billion won on the main board on Monday.

** The won ended onshore trade at 1,316.0 per dollar, 0.05% lower than its previous close at 1,315.4.

** In offshore trading, the won was quoted at 1,315.8 per dollar, down 0.1% on the day, while in non-deliverable forward trading its one-month contract was quoted at 1,313.3.

** In money and debt markets, March futures on three-year treasury bonds fell 0.03 point to 104.82. (Reporting by Cynthia Kim; Editing by Sherry Jacob-Phillips)