Yongtai Energy announced that its holding company, Singapore DeTai Energy Storage, has signed an Investment Cooperation and Shareholder Agreement with Vnergy Pte. Ltd., a Singapore National University full-vanadium flow battery energy storage technology startup, to acquire and subscribe to a total of 70% of Vnergy's shares for US$7 million. Through this investment, the "bottleneck" technical problems of full-vanadium flow batteries in terms of thermal stability, energy density and cost control will be effectively solved, and the cost of existing full-vanadium flow battery products will be greatly reduced.