Finnish handset maker Nokia said Tuesday, that its flagship company, Nokia Growth Partners has invested in China’s mobile advertiser Madhouse, representing its first transaction in the country.

While financial details of the deal undisclosed, the company maintained that China and India will remain the focus countries along with the U.S. and Europe.

The move is considered as a part of the company’s strategy of extending from its core business to other areas of services.

Established in 2004, Nokia Growth Partners targets mobile technology, services and media.