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9A. Intangible assets, net (Details) (ZHEJIANG, CNY)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
ZHEJIANG
     
Patents 2,850 2,950  
Others 161 35  
Gross 3,011 2,985  
Less: Accumulated amortisation (318) (134)  
Net 2,693 2,851  
Amortisation expense 164 134 0