MATERIAL CHANGE REPORT
INTERNATIONAL TOWER HILL MINES LTD. (the “Issuer”)
Suite 1920 – 1188 West Hastings Street
Vancouver, B.C. V6E 4A2
June 16, 2010
The date of the material change report issued pursuant to section 7.1 of National Instrument 51-102
with respect to the material change report disclosed in this report is June 16, 2010. The material
change report was issued in Vancouver, British Columbia through the facilities of the TSX Venture
Exchange via Marketwire, Canada Stockwatch and Market News Publishing.
The Issuer reports a new resource update for the Livengood Gold Project, Alaska.
The Issuer reports the results of the independently prepared June 2010 in-situ mineral resource
estimate for the Livengood gold project near Fairbanks, Alaska (Table 1). The independent study
incorporates all drill results received through May 25, 2010, a total of 420 diamond and reverse
circulation holes, totalling 121,212 metres. This resource update, calculated at a 0.7 g/t cutoff grade
which the Issuer envisions as a possible milling cut-off grade, expands the size of the deposit and
increases the average grade, thereby highlighting the growing economic potential of the Livengood
The June, 2010 in-situ updated resource estimate will form the basis of the Issuer’s ongoing
combined mill - heap leach Preliminary Economic Assessment (PEA) anticipated for release in Q3
2010. The Summer 2010 drill program at Livengood is currently underway utilizing five drills (two
diamond and three reverse circulation) for a planned total of 45,000 metres.
Updated Livengood Resource Estimate
Using a 0.7 g/t gold cut-off, the Indicated Resource is 6.9M ounces of gold (an increase of almost
19% from the January 2010 estimated resource) and the average grade has increased 9% to 1.07
g/t gold from 0.98 g/t gold (Table 1).
In addition, the indicated ounces at a 0.5 g/t gold cut off have increased by 17 % to 10.9 M ounces
gold from 9.3M ounces o