(Unaudited)
| 
       Assets, kEUR  | 
    
       Note  | 
    
       As at 30 June 2023  | 
    
       As at 31 December 2022  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Non-current assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Intangible assets  | 
    
       
  | 
    
       16,442  | 
    
       15,865  | 
  
| 
       Property, plant, and equipment  | 
    
       5  | 
    
       276,246  | 
    
       275,878  | 
  
| 
       Right-of-use assets  | 
    
       
  | 
    
       23,188  | 
    
       21,416  | 
  
| 
       Deferred income tax assets  | 
    
       
  | 
    
       10,537  | 
    
       8,286  | 
  
| 
       Other financial assets  | 
    
       
  | 
    
       2,211  | 
    
       2,767  | 
  
| 
       Total non-current assets  | 
    
       
  | 
    
       328,624  | 
    
       324,212  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Current assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Inventories  | 
    
       5  | 
    
       149,662  | 
    
       145,073  | 
  
| 
       Trade receivables  | 
    
       
  | 
    
       67,100  | 
    
       46,486  | 
  
| 
       Contract assets  | 
    
       
  | 
    
       7,414  | 
    
       2,660  | 
  
| 
       Corporate income tax receivables  | 
    
       
  | 
    
       13,573  | 
    
       7,373  | 
  
| 
       Other current assets  | 
    
       
  | 
    
       13,765  | 
    
       12,450  | 
  
| 
       Cash and cash equivalents  | 
    
       
  | 
    
       8,985  | 
    
       37,528  | 
  
| 
       Total current assets  | 
    
       
  | 
    
       260,499  | 
    
       251,570  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Total assets  | 
    
       
  | 
    
       589,123  | 
    
       575,782  | 
  
(Unaudited)
| 
       Equity and liabilities, kEUR  | 
    
       Note  | 
    
       As at 30 June 2023  | 
    
       As at 31 December 2022  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Equity attributable to equity holders of the parent company  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Share capital  | 
    
       7  | 
    
       302  | 
    
       302  | 
  
| 
       Share premium  | 
    
       
  | 
    
       203,129  | 
    
       203,129  | 
  
| 
       Translation reserve  | 
    
       
  | 
    
       8,399  | 
    
       14,119  | 
  
| 
       Treasury shares  | 
    
       7  | 
    
       -12,282  | 
    
       -13,609  | 
  
| 
       Other capital reserves  | 
    
       
  | 
    
       2,656  | 
    
       3,590  | 
  
| 
       Retained earnings  | 
    
       
  | 
    
       182,111  | 
    
       214,146  | 
  
| 
       Total equity  | 
    
       
  | 
    
       384,315  | 
    
       421,677  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Non-current liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Deferred income tax liabilities  | 
    
       
  | 
    
       1,714  | 
    
       1,878  | 
  
| 
       Pensions  | 
    
       
  | 
    
       23,198  | 
    
       26,637  | 
  
| 
       Provisions  | 
    
       
  | 
    
       1,974  | 
    
       2,476  | 
  
| 
       Lease liabilities  | 
    
       
  | 
    
       19,505  | 
    
       17,652  | 
  
| 
       Other financial liabilities  | 
    
       
  | 
    
       9,602  | 
    
       9,410  | 
  
| 
       Total non-current liabilities  | 
    
       
  | 
    
       55,993  | 
    
       58,053  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Current liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Interest-bearing loans and borrowings  | 
    
       10  | 
    
       55,172  | 
    
       –  | 
  
| 
       Lease liabilities  | 
    
       
  | 
    
       3,326  | 
    
       3,566  | 
  
| 
       Other financial liabilities  | 
    
       
  | 
    
       1,153  | 
    
       1,096  | 
  
| 
       Corporate income tax payable  | 
    
       
  | 
    
       413  | 
    
       67  | 
  
| 
       Trade payables  | 
    
       
  | 
    
       27,299  | 
    
       45,933  | 
  
| 
       Contract liabilities  | 
    
       
  | 
    
       32,814  | 
    
       27,538  | 
  
| 
       Other current liabilities  | 
    
       
  | 
    
       28,638  | 
    
       17,852  | 
  
| 
       Total current liabilities  | 
    
       
  | 
    
       148,815  | 
    
       96,052  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Total liabilities  | 
    
       
  | 
    
       204,808  | 
    
       154,105  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Total equity and liabilities  | 
    
       
  | 
    
       589,123  | 
    
       575,782  |