Exhibit 10.11 SUBSCRIPTION AGREEMENT AND INVESTMENT AGREEMENT EARTH SCIENCES, INC. THE SECURITIES OFFERED HEREBY HAVE NOT BEEN REGISTERED WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE. THESE...Subscription Agreement • March 31st, 1998 • Earth Sciences Inc • Mineral royalty traders • Colorado
Exhibit 10.13 FROM: EARTH SCIENCES, INC., Mark H. McKinnies TO: CODSA 14 S.A., ENG. PEDRO PEREZ DATE: JANUARY 9, 1998 RE: LETTER AGREEMENT Between CODSA 14 S.A. ("CODSA 14") and EARTH SCIENCES, INC. ("ESI") AND RECURSOS MINERALES VENESI C.A....Letter Agreement • March 31st, 1998 • Earth Sciences Inc • Mineral royalty traders
