Tongwei Solar (TW Solar) is dedicated to R&D, manufacture and marketing of core solar power products. As the world’s largest crystalline silicon solar cell enterprise, Tongwei Solar has two bases in Hefei and Chengdu and over 6,000 full-time employees. Hefei Base (Phase II) started the project of 2.3-GW efficient crystalline silicon solar cell on November 8, 2017 and a total of 2.175 billion yuan was invested. It is expected to be completed and put into operation in January 2019.