The Chinese mainland saw its trade with Taiwan, Hong Kong and Macao continue to rise in the first half of the year, said sources with the Ministry of Commerce (MOC) on Tuesday.

Trade volume across the Taiwan Straits rose 10.1 percent year-on-year to US$55.3 billion in the January to June period, with the mainland's exports up 15.1 percent to US$11 billion and imports up 9 percent to US$44.3 billion.

By the end of June, the island had invested an accumulative US$44.6 billion on the mainland, taking a 6.2-percent share in the total investment the mainland received from overseas.

With a 40.5-percent share and direct investment totaling US$290.3 billion, Hong Kong maintained its position as the biggest investor on the mainland.

In the first half, the mainland's exports to Hong Kong surged 24.3 percent to US$83.9 billion, while imports rose 12.8 percent to US$5.79 billion.

Meanwhile, the mainland saw the number of its Hong Kong-invested projects increase seven percent to 7,517, worth US$10.5 billion, up 19.3 percent.

The mainland's exports to Macao rose 28.1 percent to US$1.2 billion, while imports were down by 9.2 percent to US$130 million.