EXHIBIT 2.1 STOCK PURCHASE AGREEMENT BY AND AMONG ADVANCED ENERGY INDUSTRIES, INC. ADVANCED ENERGY JAPAN K.K. AERA JAPAN LIMITED AND CERTAIN STOCKHOLDERS OF AERA JAPAN LIMITED Dated November 16, 2001 TABLE OF CONTENTSStock Purchase Agreement • January 23rd, 2002 • Advanced Energy Industries Inc • Electronic components, nec
Contract Type FiledJanuary 23rd, 2002 Company Industry