Zhengyu participated in the 2019 Guangdong-Hong Kong-Macao Greater Bay Area Intellectual Property Exchange ExpoNovember 12-14, 2019, the 2019 Guangdong-Hong Kong-Macao Greater Bay Area Intellectual Property Transaction hosted by Guangdong Provincial Market Supervision Administration (Intellectual Property Office), Guangzhou Municipal People’s Government, Hong Kong Special Administrative Region Government’s Intellectual Property Department, and Macao Special Administrative Region Government’s Economic Affairs Bureau The expo was grandly held in Guangzhou Nanfeng International Convention Center, and Zhengyu participated in this grand event as an exhibitor.