On June 3, LONGi Green Energy Technology Co., Ltd. (LONGi) and Tongwei Co., Ltd. (Tongwei) signed a strategic cooperation agreement, under which Tongwei is to invest in LONGi’s 15GW/a single crystal silicon rod and slice project (located in Yinchuan, rod & slice project for short) to hold 30% shares of the project, while LONGi is to invest in Tongwei’s 50 000 t/a high purity crystalline silicon project (in Baotou, silicon project for short) to hold 30% shares.

Meanwhile, the two parties will cooperate in the supply chain. In detail, LONGi is to buy products from the silicon project company, with annual purchase quantity during 2020-2022 no less than 2.5 times of capacity owned by LONGi in the project company. Monocrystalline silicon piece purchased by Tongwei from the rod & slice project company is to be no less than 2.5 times of Tongwei owned capacity.