* KOSPI rises, foreigners net buyers

* Korean won weakens against dollar

* South Korea benchmark bond yield falls

SEOUL, Aug 1 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares rose more than 1% on Tuesday to hit their highest level in 14 months, as online platform companies and biopharmaceutical manufacturers rallied. The Korean won weakened, while the benchmark bond yield fell.

** The benchmark KOSPI rose 30.34 points, or 1.15%, to 2,662.92, as of 0149 GMT, hitting the highest level since June 3, 2022.

** South Korea's exports fell more than expected in July and at the steepest pace in more than three years, data showed.

** China's manufacturing activity swung back to contraction in July, according to a private survey.

** "Funds are seen flowing into other sectors from rechargeable battery stocks, which led the local market's gain last month," said Kim Dae-jun, an analyst at Korea Investment Securities.

** Search engine Naver rose 4.41% to its highest level since mid-September 2022, while instant messenger Kakao jumped 6.63% and its financial affiliates Kakaobank and Kakaopay were up 11.92% and 8.37%, respectively.

** Samsung Biologics gained 4.18% and Celltrion climbed 3.34%, while SK Bioscience traded up 5.32%.

** Most other index heavyweights also advanced, but chipmaker SK Hynix fell 1.54%. Of the total 933 issues traded, 623 shares rose.

** Foreigners were net buyers of shares worth 75.9 billion won ($59.21 million).

** The won was quoted at 1,279.9 per dollar on the onshore settlement platform, 0.41% lower than its previous close at 1,274.6.

** In money and debt markets, September futures on three-year treasury bonds rose 0.10 point to 103.74.

** The most liquid three-year Korean treasury bond yield fell by 2.5 basis points to 3.655%, while the benchmark 10-year yield fell by 2.0 basis points to 3.738%. ($1 = 1,281.7900 won) (Reporting by Jihoon Lee; Editing by Subhranshu Sahu)