HELSINKI, March 26 (Reuters) – Nokia (NOK1V.HE), the world’s top cellphone maker, has stopped using subcontractors in the assembly of its phones due to faltering demand for mobile handsets, a spokeswoman for the company said on Thursday.

“In engine making we have fully stopped (using subcontractors),” said a company spokeswoman, adding the firm was still using them in other functions like packaging or logistics.

In 2008 Nokia outsourced approximately 17 percent of the manufacturing volume of its mobile phone engines, which include the phone and software that enable its basic operations.

Nokia’s key subcontractors have been Foxconn (2038.HK), China’s BYD (1211.HK), Jabil Circuit (JBL.N) and Elcoteq (ELQAV.HE).