Intellectual property worth about 1.87 billion yuan ($285 million) was traded at the Guangdong-Hong Kong-Macao Greater Bay Area Intellectual Property Trade Expo 2020 in South China's Guangdong province, organizers said on Saturday. Trade in patents and trademarks reached 1.72 billion yuan, an increase of 15.97 percent from last year. Meanwhile, trade in copyright amounted to 144 million yuan, involving 2,323 copyrights at the expo.