(150423) -- SHANGHAI, April 23, 2015 (Xinhua) -- China's Minister of Science and Technology Wan Gang, President of the Association for Relations Across the Taiwan Straits Chen Deming, Mayor of Shanghai Municipality Yang Xiong, Vice Mayor of Shanghai Municipality Zhou Bo, Vice President of Xinhua News Agency Shen Haixiong, Deputy Director of China's State Intellectual Property Office He Zhimin and representatives from the guest of honor Czech Republic attend the opening ceremony of the 3rd China (Shanghai) International Technology Fair in Shanghai, east China, April 23, 2015. The three-day technology fair kicked off here on Thursday. (Xinhua/Ding Ting)(mcg)