Telefónica and China Unicom announced plans to increase their financial stakes in each other's companies by investing $1 billion each.Telefónica will increase its stake in China Unicom to 8.06%, from 5.38%. Meanwhile China Unicom will hold about 0.9% of Telefónica.The companies are also working on ways to share infrastructure and strengthen their marketing alliance. http://www.telefonica.com http://www.china-unicom.comIn February 2009, Telefónica...
