TAIPEI -- Taiwan received over $139 million of investment from Chinese mainland businesses in the first quarter of 2013, up 34 percent from a year earlier, the island's economic authority said Tuesday.

According to statistics, 29 projects with investment from mainland businesses were given the green light during the January-March period, 12 percent less compared with the same period last year.

In the first three months, Taiwan's relevant authorities approved 133 projects funded by Taiwanese enterprises on the mainland, with involved investment totaling $88.31 million.

Mainland's investment in Taiwan has totaled $642.7 million since the island opened to mainland investors on June 30, 2009.