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Inventories
 6 Months Ended
Jun. 30, 2018
Inventories [Abstract]  
Inventories
Inventories
The impairment allowance as of June 30, 2018 and June 30, 2017, respectively, amounted to USD 2,073k and USD 4,980k and developed as follows:
 
 
In USD k
 
 
2018
 
2017
As at January 1,
 
1,717

 
4,436

Currency translation
 
(48
)
 
375

Addition
 
1,276

 
2,826

Utilization
 
(342
)
 
(1,920
)
Release
 
(530
)
 
(737
)
As at June 30,
 
2,073

 
4,980