(ADPnews) - Aug 17, 2010 - Chinese monocrystalline wafer maker Comtec Solar Systems Group Ltd (HKG:0712) said on Monday its net profit for the first half of 2010 had grown to CNY 68.6 million (USD 10.1m/EUR 8m) from CNY 4.4 million a year ago on the back of increased sales.