BEIJING - Chinese contractors took $62.34 billion through international service outsourcing in 2013, up 42.2 percent year on the year.

The United States contributed $11.75 billion, the European Union $7.14 billion, Hong Kong and Japan $5.4 billion and $5.18 billion respectively, in terms of international service outsourcing for the Chinese mainland in 2013, data from the Commercial and Trade Services Department at the Ministry of Commerce has showed.

By sector, information technology outsourcing brought in $31.17 billion, up 36.8 percent; business process $9.72 billion and knowledge process $21.45 billion, up 25.8 percent and 60.8 percent, respectively.

Aggregate contract volume increased 55.8 percent year on year to $95.49 billion in 2013.

China's service outsourcing has grown steadily in recent years, and the number of employees in the sector increased by one million to 5.36 million in 2013 with 24,818 companies engaged in the business.