Chinese mainland's trade with Macao rises in H1 BEIJING, July 30 (Xinhua) -- The Chinese mainland's trade with Macao increased by 37.9 percent year on year to reach 1.79 billion U.S. dollars during the first half of the year, according to the Ministry of Commerce. The mainland's exports to Macao climbed 28 percent year-on-year to hit1.57 billion U.S. dollars during the first six months, while Macao's exports to the mainland totaled 220 million U.S. dollars, a rise of 202.7 percent year on year, according to figures released by the Ministry's Department of Taiwan, Hong Kong and Macao Affairs. Mainland authorities approved 140 Macanese investment projects during the period, a year-on-year increase of 6.9 percent, the department said. Macao's investment in the mainland fell 2.8 percent from one year earlier to hit 260 million U.S. dollars during the period, according to the department. As of June, the mainland had approved nearly 13,300 projects funded by Macanese companies. Macao's investment in the mainland totaled 11.15 billion U.S. dollars. In June, the Chinese mainland's trade with Macao decreased by 22.1 percent year on year to reach 250 million U.S. dollars. The mainland's exports to Macao dropped 25.2 percent from the previous month to 230 million U.S. dollars in June, while Macao's exports to the mainland totaled 20 million U.S. dollars, a rise of 35.6 percent month on month, according to the department.