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4. Income taxes (Details) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2012 ZHEJIANG CNY | Dec. 31, 2011 ZHEJIANG CNY | Dec. 31, 2010 ZHEJIANG CNY
Profit/(loss before) income taxes/(benefit): The PRC and Hong Kong | $ 13 | $ (1,204) | $ (1,326) |  |  |
The provision for income taxes consists of: |  |  |  |  |  |
Current tax expenses: The PRC and Hong Kong | 117 | (46) | 233 |  |  |
Current PRC EIT Domestic |  |  |  | 3,218 | 8,912 | 4,249
Total current provision | 117 | (46) | 233 | 3,218 | 8,912 | 4,249
Deferred tax benefit: The PRC and Hong Kong | 25 | (17) | (79) |  |  |
Deferred tax benefit: |  |  |  | (784) | (993) | (1,481)
Total deferred provision | $ 25 | $ (17) | $ (79) | (784) | (993) | (1,481)

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