Companies from the Chinese mainland have invested 174.6 million U.S. dollars into about 200 projects in Taiwan since the island allowed mainland investments on June 30, 2009, Taiwan's economic department said Tuesday.

The department said in a report that mainland investors pumped 42.79 million U.S. dollars into the island from January to November this year, down 54.45 percent year-on-year. During the 11 months, the number of new mainland projects in Taiwan reached 98, up 28.9 percent year-on-year, it said.

Meanwhile, Taiwanese companies invested in 530 projects on the mainland in the same 11-month period, up 30.54 percent year-on-year. The value of these investments reached 12.41 billion U.S. dollars, up 2 percent year-on-year, it said.