S.Korean stocks snap winning streak on trade deal uncertainty

* KOSPI declines, foreigners net sellers

* Korean won strengthens versus U.S. dollar

* South Korea benchmark bond yield falls

* For the midday report, please click

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

** South Korean shares ended a six-session winning streak on Friday on worries that an interim Sino-U.S. trade deal to cancel existing tariffs faced opposition from White House officials. The Korean won gained, while the benchmark bond yield dropped.

** China and the United States have agreed to roll back tariffs on each others’ goods in a “phase one” trade deal if it is completed, officials from both sides said on Thursday.

** However, the optimism retreated after Reuters reported that an agreement to roll back existing tariffs as part of a “phase one” trade deal faced fierce internal opposition in the White House and from outside advisers.

** The Seoul stock market’s main KOSPI closed down 7.06 points, or 0.33%, at 2,137.23. For the week, the index gained 1.76%, marking its fifth straight week of gains.

** The markets were under pressure due to the report about U.S. officials’ opposition to removal of existing tariffs, said Han Ji-young, an analyst at Cape Investment & Securities. China’s better-than-expected exports data capped the losses, he added.

** China’s exports and imports contracted less than expected in October, providing some relief for the export-reliant economy as Beijing tries to reach a partial trade deal with Washington.

** Foreigners were net sellers of 94.0 billion won ($81.26 million) worth of shares on the main board.

** The won was quoted at 1,157.5 per dollar on the onshore settlement platform, 0.16% higher than its previous close at 1,159.3. The currency posted a weekly gain of 0.7%, logging its sixth straight week of gains.

** In offshore trading, the won was quoted at 1,157.0 per U.S. dollar, down 0.2% from the previous day, while in non-deliverable forward trading its one-month contract was quoted at 1,156.4 per dollar.

** MSCI’s broadest index of Asia-Pacific shares outside Japan was down 0.50%, after U.S. stocks ended higher modestly. Japanese stocks closed up 0.26%.

** The KOSPI has risen 4.71% so far this year, and gained 2.1% in the previous 30 trading sessions.

** The trading volume during the session in the KOSPI index was 564.85 million shares and, of the total traded issues of 904, the number of advancing shares was 490.

** The won has lost 3.6% against the dollar so far this year.

** In money and debt markets, December futures on three-year treasury bonds rose 0.10 points to 109.97, while the 3-month Certificate of Deposit rate was quoted at 1.52% in late afternoon trade.

** The most liquid 3-year Korean treasury bond yield fell by 1.8 basis points to 1.519% in late afternoon trade, while the benchmark 10-year yield fell by 0.9 basis points to 1.805%. ($1 = 1,156.8300 won) (Reporting by Hayoung Choi; Editing by Aditya Soni)