Fourth quarter Year
SEK M 2010 2009 2010 2009
Net sales 71,974 57,441 257,375 208,487
Cost of sales (55,820) (48,314) (197,480) (179,578)
Gross income 16,154 9,127 59,895 28,909
         
   Gross margin, % 22.4 15.9 23.3 13.9
         
Research and development expenses (3,640) (3,366) (12,970) (13,193)
Selling expenses (5,870) (5,704) (22,649) (23,752)
Administrative expenses (1,293) (1,372) (5,640) (5,838)
Other operating income and expenses 137 (1,011) (659) (2,432)
Income from investments in associated companies (20) 16 (86) (15)
Income from other investments (49) (21) (57) (13)
Operating income (loss) 5,420 (2,331) 17,834 (16,333)
         
   Operating margin, % 7.5 (4.1) 6.9 (7.8)
         
Operating income before depreciation and amortization (EBITDA) 8,189 561 29,171 (3,951)
   EBITDA margin, % 11.4 1.0 11.3 (1.9)