"China has entered the final stages of high-speed economic growth after three decades of rapid expansion."

Wang Jianhui, chief economist with the Southwest Securities, commenting on yuan volatility after the currency hit a record high against the US dollar on Dec 26.

"There's growing concern that the whole economic situation will face downward pressure in the first quarter next year because of weak economies in both emerging and developed countries."

Lizhi Tang, president of Okachi's greater China region, saying that demand for natural rubber in China may drop in 2012 and that prices may suffer the biggest annual decline in three years. Okachi is the largest broker for rubber contracts on the Tokyo Commodity Exchange.

"If the actions to control the ongoing euro zone debt crisis fail, a possible new (global) debt crisis would deal a huge negative blow to the Chinese economy."

Zhang Jianping, a senior researcher at the Institute for International Economic Research under the National Development and Reform Commission, saying that China's economic growth may slow down next year.