High-end seminar on intelligent noise cancelling technology jointly sponsored by Shenzhen Longgang District People's Government, Hong Kong Productivity Council, Peking University Shenzhen Graduate School, Nanjing University Acoustics Research Institute, Shenzhen Longgang District Trade and Industry Bureau, Shenzhen Grandsuns Co., Ltd. was held in the Ritz-Carlton Hotel in Shenzhen.

Jiang Zhenghua, former vice chairman of the National People's Congress, Zhai Ligong, chairman of the Supervisory Committee of the State-owned Assets Supervision and Administration Commission, Chen Yingchun, member of the Standing Committee of the Shenzhen Municipal Committee, deputy mayor of Shenzhen Municipal Committee, and Jiang Zeng Yu, secretary of Shenzhen Longgang District Committee, Lu Xucha, deputy secretary-general of the Standing Committee of the Shenzhen People’s Congress, Xiong Xiaoping, deputy director of Longgang District, Jiang Yucai, Longgang District Trade and Industry Bureau director, Pan Yongsheng, vice president of HK Productivity Promoting Bureau, Shi Shouyu, president assistant of Peking University and Executive Vice-President of its  Shenzhen Graduate School, Xu Yangsheng, Associated Vice President of the Chinese University of Hong Kong and Academician of the Chinese Academy of Engineering, Professor He Xingui of Peking University and Academician of the Chinese Academy of Engineering, Luo Minghao, General Manager of the Cabin Department of China Southern Airlines Co., Ltd. attended the seminar. The seminar was hosted by Academician He Xingui. The People's Daily, Xinhua News Agency, China News Service, CCTV, Phoenix Satellite TV, Hong Kong Ta Kung Pao, Shenzhen TV Station and many other media focused on the seminar.

Before the meeting, the leaders and experts visited the intelligent noise cancelling sound-insulation room and tried the intelligent noise canceling headphones of 233621 independently developed by Grandsun. They were so satisfied with the noise cancelling effect that they highly praised them. Chen Yingchun, the vice mayor of Shenzhen delivered a speech at the meeting, hoping that this meeting will serve as the starting point for promoting the in-depth development and industrialization of intelligent noise cancelling technology. Under the close integration and joint efforts of politics, industry, education and research, it will be the first to develop a core industrial chain based on the intelligent noise cancelling technology and push the development of this strategic emerging industry in Shenzhen. Xiong Xiaoping, deputy director of Longgang District, pointed out that Grandsun has become a pioneer in the development and application of intelligent noise cancelling technology in China. He also said that the Longgang District Government would strongly support such high-tech enterprises as Grandsun, which have strong independent innovation ability and great potential for development. He also looked forward to taking root in the new industry of intelligent noise reduction technology.

Subsequently, Professor Xu Yangsheng, Associate Vice-President of the Chinese University of Hong Kong, Professor Qiu Xiaojun, Chairman of Acoustic Science and Engineering Department of Nanjing University, Professor Zou Yuexian, Vice-President of the Information Engineering of Shenzhen Graduate School of Peking University, Pan Yongsheng, vice president of HK Productivity Promoting Bureau, Luo Minghao, director of Southern Airline Cabin Department, Wu Haiquan, the Chairman of Grandsun, and other experts and professionals in the field gave their particular voice on the new development of R&D and application, the feasibility of industrialization of intelligent noise cancelling technology and its market prospects. Mr. He Xingui made brilliant comments one by one later. Finally, Jiang Zhenghua, former vice chairman of the National People's Congress, made a speech and contributed a critical comment on this seminar with three key words: "Intelligent, noise cancelling and technology industrialization". The seminar came to an end officially with warm applause.