A trade fair on green development opened in northwest China's Qinghai Province, featuring online contract signing for the first time due to the COVID-19 epidemic.

The 21st Qinghai China Investment and Trade Fair for Green Development was unveiled in the provincial capital Xining, with 17 projects signed online.

The projects, with a total planned investment of 8.32 billion yuan (1.2 billion U.S. dollars), are in fields including infrastructure construction, environmental protection and cultural tourism.

The fair's main venue features an exhibition area of around 50,000 square meters, with 10 exhibition halls.

Located on the Qinghai-Tibet plateau, Qinghai Province boasts rich mineral, cultural and tourism resources.