China has issued new guidelines to encourage the $1.2 trillion mutual fund industry to innovate, promising to let more foreign firms into the industry as part of Beijing's recent efforts to boost the stock market and the real economy. The guidelines will be a blueprint for the development of the domestic industry in the next three to five years, a regulatory spokesman told a weekly news conference in Beijing on Friday. By the end of May, China's 91 mutual fund companies with 680 funds managed a total assets of 7.25 trillion yuan ($1.2 trillion), making the domestic fund industry the 10th biggest in the world, official data shows. Still, stock holdings by professional institutional investors, dominated by mutual funds and brokerages, only accounted for 10.87 percent of China's total stock market capitalisation by the end of last year. The fledging market is dominated by much less sophisticated retail investors, a result that has led to rampant speculation in loss-makin