[Yunnan Neng Tou: sign a Strategic Cooperation Agreement with Hunan Cube New Energy Technology Co., Ltd.] Caixian News Agency, May 31 / PRNewswire-FirstCall-Asianet /-- Yunnan Neng Tou announced that it signed a Strategic Cooperation Agreement with Hunan Cube New Energy Technology Co., Ltd. The two sides cooperate comprehensively and deeply in aspects including not limited to lithium / sodium ion energy storage demonstration projects, 5G base station energy storage projects, wind power supporting energy storage applications, industrial and commercial energy storage, sodium salt applications of raw materials for sodium ion batteries, etc.