EXHIBIT A STOCK AND WARRANT PURCHASE AGREEMENT This Agreement is dated as of January 31, 2000 and is by and between EcoLogic, LLC, a California limited liability company ("ECOLOGIC"), and KleenAir Systems, Inc., a Nevada corporation ("KLEENAIR"). 1....Stock and Warrant Purchase Agreement • March 31st, 2000 • Ecologic LLC • Blank checks • California
WARRANTEcologic LLC • March 31st, 2000 • Blank checks
