Ascent Solar Technologies Inc. (ASTI) stock more than doubled in share price after it announced an investment from TFG Radiant Group. Ascent Solar Enters Major Strategic Alliance with TFG Radiant Group of China (BUSINESS WIRE)– Ascent Solar Technologies, Inc. (“Ascent”) (NASDAQ:ASTI) and TFG Radiant Group (“TFG Radiant”) today announced they have signed a more than […]