KEY POINTS
  • China private-equity player GSR Capital is aiming to buy as much as 20 percent in SQM, one of the world's biggest lithium producers, sources said.
  • GSR, an investor in clean technology and electric cars, met the Chilean government in April to discuss the potential purchase and was now moving towards a deal, the sources said.
An aerial view of the brine pools and processing plant of the Soquimich lithium mine on the Atacama salt flat in northern Chile, January 10, 2013.

Chinese private equity firm GSR Capital is looking to buy a substantial holding in Chile's Sociedad Quimica Y Minera (SQM), one of the world's biggest lithium producers, according to two sources with knowledge of the matter.

GSR could buy a stake of around 20 percent - worth just under $1.9 billion at current market values, one of the sources said, but added there was no firm agreement.