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Located in Beijing Tiananmen Square, south to the Monument to the People's Heroes, the Chairman Mao memorial Hall is a place for people to admire and remember the great leader. With its ground-breaking ceremony held in 1976, this hall was completed in May, 1977. In accordance with the decision made by central government, the reconstruction work of the hall started in 1997. CNEEC was responsible for the electricity, meter and illumination work.