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Based on Consolidated Korean GAAP (KRW Million)
  2002 2003 2004 2005 2006 2007
Sales 3,566,753 6,098,335 8,328,170 10,075,580 10,624,200 14,351,966
Gross Profit 350,595 1,306,285 2,028,657 980,869 (308,116) 2,236,603
Gross Margin 10% 21% 24% 10% -3% 16%
Operating Profit 221,107 1,074,120 1,728,356 469,697 (879,038) 1,504,007
Operating Margin 6% 18% 21% 5% -8% 10%
Net Profit 288,792 1,019,273 1,655,445 517,012 (769,313) 1,344,027
Net Margin 8% 17% 20% 5% -7% 9%
Based on Consolidated US GAAP (KRW Million)
  2002 2003 2004 2005 2006 2007
Sales 3,566,734 6,098,354 8,324,794 10,075,580 10,624,200 14,351,966
Gross Profit 427,722 1,356,762 2,078,554 1,005,732 (286,068) 2,279,709
Gross Margin 12% 22% 25% 10% -3% 16%
Operating Profit 298,677 1,122,243 1,760,105 477,648 (881,849) 1,478,303
Operating Margin 8% 18% 21% 5% -8% 10%
Net Profit 348,110 1,006,503 1,703,687 541,649 (692,779) 1,344,379
Net Margin 10% 17% 20% 5% -7% 9%