Minera Andes Inc. Common Shares 602910101 April 19, 2007 CUSIP 602910101 1. Sprott Asset Management Inc. Suite 2700, South Tower, Royal Bank Plaza, Toronto, Ontario M5J 2J1 Canada 2. n/a 3. 4. Ontario, Canada 5. 10,241,644 6. n/a 7. 10,241,644 8. n/a 9. n/a 10. n/a 11. n/a 12. IA Item 1 (a) Minera Andes Inc. (b) 111 East Magnesium Road, Suite A Spokane, Washington 99208 USA Item 2 (a) Sprott Asset Management Inc. (b) Suite 2700, South Tower Royal Bank Plaza P.O. Box 27 Toronto, Ontario M5J 2J1 Canada (c) Canadian (d) Common Shares (e) 602910101 Item 3 n/a Item 4 (a) n/a (b) n/a (c) (i) 10,241,644 (ii) n/a (iii) 10,241,644 (iv) n/a Item 5 n/a Item 6 n/a Item 7 n/a Item 8 n/a Item 9 n/a Item 10 April 25, 2007 Eric Sprott Chief Executive Officer