* KOSPI falls, foreigners net sellers

* Korean won weakens against U.S. dollar

* South Korea benchmark bond yield falls

* For the midday report, please click

SEOUL, Aug 17 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares closed lower for an eight straight session on Tuesday, as worries about slowing economic show in the country's biggest trading partner China added to concerns about the Delta coronavirus variant.

** The won weakened, while the benchmark bond yield fell.

** The benchmark KOSPI ended down 28.20 points, or 0.89%, to 3,143.09.

** Among the heavyweights, technology giant Samsung Electronics fell 0.27% and peer SK Hynix was flat, while LG Chem and Naver fell 0.33% and 1.83%, respectively.

** A slew of worse-than-expected economic indicators from the United States and China added to concerns that the global economy may slow down, said Park Kwang-nam, an analyst at Mirae Asset Securities.

** South Korean markets, which were closed on Monday, reacted negatively to Monday's factory output and retail sales growth data from China that slowed sharply and missed expectations in July.

** Foreigners were net sellers of 416.9 billion won ($354.38 million) worth of shares on the main board.

** The won was quoted at 1,176.3 per dollar on the onshore settlement platform, closing 0.62% lower after hitting the lowest since September last year.

** In offshore trading, the won was quoted at 1,177.1 per dollar, down 1%, while in non-deliverable forward trading, its one-month contract was quoted at 1,177.4.

** The KOSPI has risen 9.38% so far this year, but lost 3.4% in the previous 30 trading sessions.

** The trading volume was 680.19 million shares. Of the total traded issues of 919, the number of advancing shares was 116.

** The most liquid 3-year Korean treasury bond yield rose by 0.3 basis point to 1.405%, while the benchmark 10-year yield fell by 3.2 basis points to 1.888%. ($1 = 1,176.4200 won) (Reporting by Cynthia Kim, additional reporting by Jihoon Lee; editing by Uttaresh.V)