It looks like construction isn't the only inflated item coming out of China. Bloomberg details:
The Conference Board revised its leading economic index for China to show the smallest gain in five months in April, in a release that contributed to the biggest sell-off in Chinese stocks in more than a month.Blame needs to go to the Conference Board, but the lack of transparency coming out of China didn't help.
The gauge of the economy’s outlook compiled by the New York-based research group rose 0.3 percent, less than the 1.7 percent gain it reported June 15. The Conference Board said in an e-mailed statement that the previous reading contained a calculation error for floor space on which construction began.
Source: Conference Board