BRIEF-China Greatwall Computer's unit TPV returns to net profit in H1

Aug 18 (Reuters) - China Greatwall Computer Shenzhen Co Ltd * Says unit TPV Technology returns to net profit of $26.9 million in H1 versus net loss of $636.8 million yuan year ago Source text in Chinese: http://bit.ly/2bh04I9 Further company coverage: (Reporting by Hong Kong newsroom)