* KOSPI index falls, foreigners sell * Korean won gains against U.S. dollar * South Korean bond yields inch higher SEOUL, June 26 (Reuters) - Round-up of South Korean financial markets: ** South Korea's KOSPI stock index fell on Tuesday as escalating trade tensions between the United States and other major economies hurt risk appetite. The Korean won gained against the dollar while bond yields edged higher. ** Conflicting signals from the Trump administration over proposed restrictions on foreign investment in U.S. technology companies, along with news that recently imposed import tariffs are starting to disrupt supply chains, hurt global equities. ** After U.S. Treasury Secretary Steven Mnuchin said on Monday that forthcoming investment restrictions from the department will not be specific to China but would apply "to all countries that are trying to steal our technology," White House trade and manufacturing adviser Peter Navarro said that any investment restrictions proposed by the Trump administration would target China and not other countries. ** The French finance minister warned Washington that Europe will retaliate if U.S. imposes auto tariffs, after Trump threatened to hit imported cars assembled in European Union with a 20 percent tariff. ** At 02:12 GMT, the KOSPI was down 28.63 points or 1.21 percent at 2,329.25. ** However, shares of South Korean steelmakers climbed on optimism over inter-Korean railway cooperation talks to be held later in the day. Bookook Steel and Samhyun Steel surged 12.7 percent and 15.9 percent, respectively. Domestic train manufacturer Hyundai Rotem also gained 2.8 percent. ** The won was quoted at 1,115.9 per dollar on the onshore settlement platform , 0.12 percent firmer than its previous close at 1,117.2, the lowest finish since November. ** In offshore trading, the won was quoted at 1,116.4 per U.S. dollar, down 0.17 percent from the previous day, while in one-year non-deliverable forwards it was being asked at 1,099.95 per dollar. ** MSCI's broadest index of Asia-Pacific shares outside Japan was down 0.99 percent, after U.S. technology shares took a hit overnight, with the S&P 500 and Nasdaq suffering their steepest losses in more than two months. Japanese stocks fell 0.7 percent. ** The KOSPI is down around 4.4 percent so far this year, and down by 3.52 percent in the previous 30 days. ** The current price-to-earnings ratio is 12.10, the dividend yield is 1.28 percent and the market capitalisation is 1,242.04 trillion won. ** The trading volume during the session on the KOSPI index was 219,533,000 shares and, of the total traded issues of 884, the number of advancing shares was 111. ** Foreigners were net sellers of 175,479 million won worth of shares. ** The U.S. dollar has risen 4.69 percent against the won this year. The won's high for the year is 1,053.55 per dollar on April 2 2018 and low is 1,118.22 on June 25 2018. ** In money and debt markets, September futures on three-year treasury bonds fell 0.02 points to 107.95 ** The Korean 3-month Certificate of Deposit benchmark rate was quoted at 1.65 percent, while the benchmark 3-year Korean treasury bond yielded 2.145 percent, barely changed from the previous day's 2.15 percent. (Reporting by Joori Roh; Editing by Amrutha Gayathri)