As Nokia’s (NOK) share of the world’s largest smartphone market plummeted, Samsung (005930) shipments exploded in 2012, propelling the company to the top of the smartphone food chain in China. New data released on Sunday by market research firm Strategy Analytics and reported by Yonhap News Agency suggests Samsung shipped just over 30 million smartphones in China last year for a 17.7% share of the market. Samsung shipped just 10.6 million units in 2011. Lenovo was the country’s No.2 vendor with a 13.2% share and Apple (AAPL) was the third-largest vendor with 11% despite the fact that China’s largest wireless carrier does not yet offer the iPhone. Nokia, China’s top smartphone vendor in 2011, saw its market share slide to just 3.7% last year, making it the No.7 vendor according to Strategy Analytics.