Exhibit 4.6 OPTION AGREEMENT6 Option Agreement • April 16th, 2001 • Dsi Datotech Systems Inc • British Columbia
Contract Type FiledApril 16th, 2001 Company Jurisdiction
WITNESSETH:6 Option Agreement • February 19th, 2002 • Geoalert Inc • Mining & quarrying of nonmetallic minerals (no fuels) • Ohio
Contract Type FiledFebruary 19th, 2002 Company Industry Jurisdiction