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Contract assets and liabilities (Tables)
 12 Months Ended
Dec. 31, 2019
Contract assets and liabilities

Contract assets consisted of the following at December 31:

 

    2019     2018  
    US$’000     US$’000  
             
Unbilled revenue     441       899  

  

Contract liabilities consisted of the following at December 31:

 

    2019     2018  
    US$’000     US$’000  
             
Deferred revenue     869       1,370  

 

The following table provides information about contract assets and contract liabilities from contracts with customers:

 

    December 31,  
    2019     2018  
    US$’000     US$’000  
             
Contract assets     441       899  
Contract liabilities     (869 )     (1,370 )
Net contract liabilities     (428 )     (471 )

 
Net (liability) / asset position for contracts in process

The net liabilities position for contracts in process consisted of the following at December 31:

 

    2019     2018  
    US$’000     US$’000  
             
Cost and estimated earnings on uncompleted contracts     5,150       6,354  
Less: billings to date     (5,578 )     (6,825 )
      (428 )     (471 )

 

The net liabilities position for contracts in process is included within the contract asset and contract liability in the accompanying consolidated balance sheets as follows at December 31:

 

    2019     2018  
    US$’000     US$’000  
             
Unbilled revenue     441       899  
Deferred revenue     (869 )     (1,370 )
      (428 )     (471 )
ZHEJIANG TIANLAN  
Contract assets and liabilities

Contract assets consisted of the following at December 31:

 

    2019     2018  
    RMB’000     RMB’000  
             
Unbilled revenue     80,961       100,994  

 

Contract liabilities consisted of the following at December 31:

 

    2019     2018  
    RMB’000     RMB’000  
             
Deferred revenue     55,898       41,046  

 

The following table provides information about contract assets and contract liabilities from contracts with customers:

 

    2019     2018  
    RMB’000     RMB’000  
             
Contract assets     80,961       100,994  
Contract liabilities     (55,898 )     (41,046 )
                 
Net contract assets     25,063       59,948  

 
Net (liability) / asset position for contracts in process
    2019     2018  
    RMB’000     RMB’000  
             
Costs and estimated earnings on uncompleted contracts     433,195       236,044  
Less: billings to date     (352,234 )     (135,050 )
                 
      80,961       100,994