Zhejiang AMPower Co., Ltd. is a joint venture founded by Chilwee and General Electric in 2017. The business footprint of AMPower mainly covers the production, R&D and sales of the sodium-nickel chloride battery (also known as Durathon® battery), as well as the energy storage system integration of Durathon® battery. AMPower is the first enterprise in China to produce sodium-nickel battery and has the largest sodium-nickel battery production factory in the world.