OCI says Suntech one of its largest polysilicon customers has walked away from three orders totalling 1.46 trillion won ($1.3bn), in yet another sign of the PV giant’s grave financial problems.

Some 1.03 trillion won worth of polysilicon was destined for Wuxi Suntech Power, the company’s bankrupt Chinese manufacturing subsidiary, while the remainder was destined for Suntech Power International, the company’s principal European subsidiary.