Jun/05 Capstone predecessor Sherwood acquires the Minto property in Yukon, Canada
Aug/05 Drill program commenced to confirm Minto Main mineral reserves
Oct/05 Drilling confirms copper and gold values at Minto
Feb/06 Development of Minto project begins
Mar/06 Discovery of Area 2 just 300 metres southeast of Minto Main deposit
Apr/06 Pre-stripping of Minto Main copper-gold deposit begins
Jul/06 Feasibility Study shows robust returns on Minto Project and Minto mill construction commences
Oct/06 C$85 million debt package arranged, forward sales complete, concentrate off-take agreement executed

Power Purchase Agreement signed

Resource estimate for Area 2 deposit

May/07 First copper-gold concentrates at Minto mine produced
Jul/07 Two new copper-gold systems at Minto identified
Oct/07 Minto mine declares commercial production

Preliminary Feasibility Study for expansion of mine

Phase II mill expansion completed ahead of schedule

Mar/08 Phase II commissioning complete, increases throughput from 1,600 to 2,400 tpd
Jun/08 Significant increase in copper-gold resources

In a precious metal transaction, Silverstone (bought out by Wheaton Precious Metals formerly, Silver Wheaton) provides upfront payment of US$37.5 million for payable gold and silver from Minto

Minto connects to electrical grid

Feb/09 Fifth discovery at Minto mine - 'Minto North'
Mar/09 Minto mill reaches Phase III design throughput of 3,200 tpd
May/09 Exceptional copper-gold grades at Minto North - best ever drill intercepts
Jun/09 Significant increase in copper-gold mineral resources reported for Minto
Nov/09 Minto East: sixth high grade Copper-Gold discovery in three years - second in 2009
Dec/09 Preliminary Feasibility study on Phase IV Expansion

Additional Copper-Gold results from Minto East

Copper-Gold intercepts from Area 2/118 extension

Jun/10 Mineral Resource estimate for Minto East
Jul/10 Discovery of Wildfire deposit
Aug/10 Announcement of 44% increase in copper contained in undeveloped Measured and Indicated Resources at Minto
Dec/10 Discovery of Inferno
Mar/11 Preliminary Feasibility study on Phase V Expansion
May/11 Updated Mineral Resource estimate adds 219 million pounds of copper in Measured and Indicated Resource
Dec/11 Updated Mineral Resource estimate adds an additional 67 million pounds of copper in the M&I categories
Dec/11 Discovery of Fireweed
Jun/12 Phase VI Pre-Feasibility Study
Sep/12 Commenced underground development
Oct/12 Updated Mineral Resource estimate adds an additional 101 million pounds of copper in the Indicated category and 86 million pounds in the Inferred category
Aug/15 Received new Water Use License
Oct/18 Placed on temporary care and maintenance. See October 11, 2018 news release for more details.