Foreign investment declined by 6.8 per cent year-on-year to $8.43 billion in September, ministry spokesman Shen Danyang told the media in Beijing.
The figure brought the total foreign direct investment inflow for the first nine months of the year to $83.42 billion down 3.8 per cent year-on-year, Shen said.
"Although the FDI inflow saw slight declines, there has not been any substantial declines," he said.
Investment from developed economies, including the European Union, the US and Japan saw both rises and drops, but the drops narrowed in general, Shen said.
In the first nine months, investment from the US dropped 0.63 per cent year-on-year to $2.37 billion which was less than a 2.9 per cent drop in the January-August period.
Investment from the European Union dropped 6.3 per cent year-on-year to $4.83 billion during the period while those from Japan surged 17 per cent from a year earlier to $5.62
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