FUZHOU, April 29 (Xinhua) -- China produced 52.26 zettabytes of data in 2025, an increase of 27.28 percent year on year, said Liu Liehong, head of the National Data Administration, on Wednesday.

People visit an innovation achievements exhibition during the 2025 World Computing Conference in Changsha, central China's Hunan Province, Nov. 20, 2025. (Photo: Xinhua)

Data generated by China's system software and artificial intelligence (AI) reached 26.92 zettabytes in 2025, overtaking the volume of traditionally dominant internet of things (IoT) data for the first time, Liu said at the opening of the 9th Digital China Summit in Fuzhou, southeast China's Fujian Province.

He also noted that the value added by the country's core digital economy industries accounted for more than 10.5 percent of GDP last year, and that digital infrastructure is being upgraded at an accelerating pace.