Foreign direct investment into the Chinese mainland amounted to 604.04 billion yuan ($84.89 billion) in the January to August period, an increase of 6.9 percent year-on-year, the Ministry of Commerce said on Thursday.

FDI into high-tech industries maintained a strong growth momentum, the ministry's spokesman Gao Feng said at a briefing. The actual use of foreign capital in high-tech sectors surged 39.3 percent year-on-year to 174.8 billion yuan in the first eight months, the ministry's data showed.

Between January and August, FDI from the Republic of Korea and Singapore grew by 45.3 percent and 17.1 percent year-on-year, respectively, according to the data.

In August alone, FDI rose 3.6 percent year-on-year to 70.89 billion yuan, the data showed.