Together with the original supply agreement announced in April 2008, GCL Silicon Technology will supply Trina Solar with virgin polysilicon and wafers sufficient to produce approximately 4,825MW of solar modules in aggregate over eight years. Delivery of polysilicon at predetermined prices started in April 2008.

Jifan Gao, chairman and CEO of Trina Solar, said: This supplemental agreement greatly extends our advantage in securing high quality polysilicon feedstock at predetermined prices to support our long-term sales growth. Combined with our other long-term agreements and increased manufacturing efficiencies, we remain confident in our abilities to expand our margins in the long term as the cost of solar energy approaches grid parity levels.