Companies listed on the Shenzhen Stock Exchange recorded steady performances last year, data from the bourse showed.

The operating revenue of these firms totaled 18.3 trillion yuan (about $2.8 trillion) in 2021, up 23.4% year on year.

The majority of revenue came from non-financial firms, which raked in 17.7 trillion yuan last year.

The net profit of firms listed on the Shenzhen bourse reached 977.62 billion yuan last year, up 6.7% from a year earlier.

In terms of sector-wise figures, companies in over 60% of all sectors saw profit growth, with those in upstream mining, manufacturing and modern services as frontrunners.

The data was collected from the annual reports of 2,628 out of 2,635 Shenzhen-listed companies.