BEIJING — Investors in Chinese companies were caught off guard this summer by Beijing’s actions against homegrown tech giants, including comments about overseas-listed shares.One of the surprises was a mandate in late July that Chinese education businesses should restructure and remove investment from foreigners. A separate order earlier last month called for app stores to remove Chinese ride-hailing app Didi — just days after its massive IPO in New York.Didi shares have dropped more than 30% since the listing. The KraneShares CSI China Internet ETF (KWEB), whose top holdings include U.S.-listed stocks Alibaba and JD.com, has fallen 29% over the last 60 trading days.“It’s probably important, especially for international investors to note, there is a big and deep change of philosophical thinking on the economic policy, what’s more important in China’s economy,” said Zhu Ning, professor of finance and deputy dean at the Shanghai Advanced Institute of Finance. “Foreign investors need to understand and (brace) for that.”cnbc.com