I don't believe its in China's interest to reject the offer from Tianqi for gxy plant. As it would go against there policy's and undermine there plan for the future of energy security and low carbon emission targets.
basically why would they reject something they have all intentions on implementing to the economy.
http://www.forbes.com/sites/jackperkowski/2014/06/17/china-leads-in-renewable-investment-again/
http://www.businessspectator.com.au...na/how-genuine-chinas-commitment-green-energy
http://reneweconomy.com.au/2014/china-shows-theres-renewable-energy-fighting-climate-change-14524
http://reneweconomy.com.au/2014/china-shows-theres-renewable-energy-fighting-climate-change-14524