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KOSPI rises, foreigners net sellers

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Korean won strengthens against dollar

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South Korea benchmark bond yield rises

SEOUL, Oct 18 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares rose for a third consecutive session on Tuesday, tracking a relief rally across global markets on Britain's withdrawal of tax cut plans, with tech platform operators leading gains.

** The Korean won strengthened, while the benchmark bond yield rose.

** The benchmark KOSPI was up 12.89 points, or 0.58%, at 2,232.60 as of 0119 GMT, after rising as much as 1.44% in early trade.

** Britain's new finance minister scrapped Prime Minister Liz Truss's economic plan and scaled back her vast energy support scheme on Monday, making a historic policy U-turn to try to stem a dramatic loss of investor confidence.

** "The market showed a positive reaction, but it is unlikely to extend gains past the level prior to the issue without any improvement in macroeconomic fundamentals," said Huh Jae-hwan, an analyst at Eugene Investment and Securities.

** Tech giant Kakao rose 1.34%, with affiliates Kakaobank and Kakaopay up 3.01% and 7.08%, respectively, following the previous session's sharp losses on service outage. Peer Naver rose 1.50%.

** HYBE rose 6.52% after its boy band BTS said members would go off on mandatory military service, starting shortly with oldest member Jin, with analysts cheering eased uncertainty over the issue.

** Foreigners were net sellers of shares worth 138.0 billion won ($96.55 million) on the main board, after 11 straight buying sessions.

** The won was quoted at 1,427.6 per dollar on the onshore settlement platform, 0.54% higher than its previous close.

** In money and debt markets, December futures on three-year treasury bonds rose 0.04 point to 101.88.

** The most liquid three-year Korean treasury bond yield rose by 0.9 basis point to 4.240%, while the benchmark 10-year yield rose by 6.0 basis points to 4.260%. ($1 = 1,429.2500 won) (Reporting by Jihoon Lee; Editing by Rashmi Aich)