66 ANNUAL REPORT 2012 Transactions between reportable segments have been recorded at exchange value Geographic segment information December 31 December 31 2012 2011 Revenue from external customers Canada 2789688 2653686 USA 59030 58413 International 98078 184068 2946796 2896167 Property plant equipment and intangible assets Canada 579403 544183 USA 1570 1651 International 353274 307355 934247 853189 Revenue from external customers has been attributed to individual countries on the basis of the customers location 35 RELATED PARTIES The Company conducts its business principally through the following subsidiary companies all of which are wholly owned Subsidiary Jurisdiction of incorporation Aecon Construction and Materials Limited Ontario Aecon Construction Group Inc Canada Canonbie Contracting Limited Alberta Groupe Aecon Quebec Ltee Quebec Lockerbie Hole Contracting Limited Alberta South Rock Ltd Alberta Karson Construction Group Ontario Miwel Construction Limited Ontario Aecon Construction Management Inc Alberta The Company also conducts its business through the following signifcant joint ventures and associates Joint ventures Country of Ownership and associates operations interests Quiport JV Ecuador 423 Quito Airport Construction Project Ecuador 500 Upper and Lower Mattagami Projects Canada 200 Autoroute 30 Project Canada 160 Waneta Dam Project Canada 600 TTC Sheppard South Project Canada 300 Scott Management Canada 490 IPF Cold Lake and Polaris Pipelines Project Canada 500 Northeast Anthony Henday Drive Project Canada 225 OPG Darlington RFR Project Canada 500 Key management includes the Companys Board of Directors and Executive Committee Compensation awarded to key management is as follows December 31 December 31 2012 2011 Shortterm employee benefts 6099 5491 Sharebased payments 1117 1855 7216 7346 NOTES TO THE CONSOLIDA TED FINANCIAL ST A TEMENTS DECEMBER 31 2012 AND 2011 IN THOUSANDS OF CANADIAN DOLLARS EXCEPT PER SHARE AMOUNTS