* Shanghai stocks close lower, blue-chip CSI300 index down
* Gains in Shanghai stocks led by Shanghai Qiangsheng Holding Co Ltd and losses by Zhengping Road & Bridge Construction Co Ltd
* China’s A-shares are at 16.99 percent premium over H-shares
SHANGHAI, July 27 (Reuters) - China stocks ended down on Friday, as investors were cautious amid concerns over the Sino-U.S. trade friction.
** The blue-chip CSI300 index ended 0.4 percent down at 3,521.23, while the Shanghai Composite Index closed 0.3 percent lower at 2,873.59 points. ** For the week, SSEC was up 1.6 percent, while CSI300 gained 0.8 percent. ** The United States signalled on Thursday it is set to push ahead on trade talks with Canada and Mexico after agreeing to suspend hostilities over tariffs with Europe in a fragile deal that may clear the way for renewed pressure on China. ** Chinese and U.S. envoys presented radically differing visions of Beijing’s economic model at the World Trade Organization on Thursday, a choice between “the world’s most protectionist economy” and a growth story that has benefited all countries. ** Around the region, MSCI’s Asia ex-Japan stock index was firmer by 0.34 percent, while Japan’s Nikkei index closed 0.56 percent higher. ** At 0702 GMT, the yuan was quoted at 6.8102 per U.S. dollar, 0.38 percent weaker than previous close of 6.7845. ** The largest percentage gainers in the main Shanghai Composite index were Shanghai Qiangsheng Holding Co Ltd, which closed up 10.12 percent, followed by Tibet Tianlu Co Ltd , which ended 10.05 percent higher and Hunan Tyen Machinery Co Ltd, which closed 10.04 percent firmer. ** The largest percentage losses in the Shanghai index were Zhengping Road & Bridge Construction Co Ltd, which closed down 10.04 percent, followed by Xinjiang East Universe Group Gas Co Ltd, which ended 10 percent lower and Shanghai Hile Bio-Technology Co Ltd, which closed down 10 percent. ** So far this year, the Shanghai stock index is down 13.1 percent, the CSI300 slipped 12.6 percent, while China’s H-share index listed in Hong Kong is down 5.9 percent. Shanghai stocks gained 0.92 percent this month. ** About 14.64 billion shares were traded on the Shanghai exchange, roughly 105.3 percent of the market’s 30-day moving average of 13.90 billion shares a day. The volume in the previous trading session was 16.84 billion. ** As of 0703 GMT, China’s A-shares were trading at a premium of 16.99 percent over the Hong Kong-listed H-shares. ** The Shanghai stock index is below its 50-day moving average and below its 200-day moving average. ** The price-to-earnings ratio of the Shanghai index was 12.54 as of last full trading day, while dividend yield was 2.6 percent. ** So far this week, the market capitalisation of the Shanghai stock index rose 1.93 percent to 30.55 trillion yuan. (Reporting by Shanghai Newsroom, Editing by Sherry Jacob-Phillips)