Tajima said that SONY will keep teaming up with Taiwanese supply chains, and to set up a price policy to face the rising of Chinese white box handset makers.

Source said, SONY is actively in stealing the market share of Samsung and Apple, Taiwanese supply chains play important roles. Namely, MediaTek for handsets' chipsets, ELAN Microelectronics for Touch Pad Controllers, and ODM firms Arima Communications, Compal Electronics are SONY's close partners.

Tajima said, SONY has successfully applied that guerrilla tactics strategy to become one of the top three players in Japan, and the company has also been ranked among the top three smartphone vendors in Taiwan.

There are now almost 10 markets globally where SONY has achieved a market share of more than 10 percent, including Spain, Russia, Sweden, Hong Kong and India, he added.