v3.26.1
Current assets and liabilities (Tables)
12 Months Ended
Dec. 31, 2025
Current assets and liabilities  
Schedule of aging of trade accounts receivable

​

​

​

​

​

​

​

​

  ​ ​ ​

Dec 31

  ​ ​ ​

Dec 31

 

​

  ​ ​ ​

2025

  ​ ​ ​

2024

​

​

​

in k€

​

in k€

 

Not past due

​

116,100

​

87,986

 

Risk provision not past due

 

(589)

​

(161)

​

Weighted average loss rate

​

0.51

%

0.18

%

Past due 1-30 days

 

12,780

​

13,098

​

Risk provision 1-30 days

 

(199)

​

(43)

​

Weighted average loss rate

​

1.56

%

0.33

%

Past due 31-120 days

 

5,612

​

9,473

​

Risk provision 31-120 days

 

(336)

​

(32)

​

Weighted average loss rate

​

6.00

%

0.34

%

More than 120 days

 

15,557

​

16,903

​

Risk provision more than 120 days

 

(12,961)

​

(10,905)

​

Weighted average loss rate

​

83.31

%

64.51

%

Total trade accounts receivable

 

135,963

​

116,319

​

Schedule of changes in loss allowances on trade accounts receivable

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​

​

​

​

​

​

​

  ​ ​ ​

Credit-impaired

  ​ ​ ​

Lifetime expected

  ​ ​ ​

​

​

​

Trade accounts receivable

​

credit losses

​

​

​

  ​ ​ ​

(individually assessed)

  ​ ​ ​

(collectively assessed)

  ​ ​ ​

​

​

​

k€

​

k€

​

k€

Balance as of January 1, 2024

​

6,121

 

331

 

6,452

Change in provision for ECL

 

—

 

194

 

194

Additions/Reductions

 

7,969

 

—

 

7,969

Recoveries collected

 

(3,474)

 

—

 

(3,474)

Deduction from allowance

 

—

 

—

 

—

Currency translation adjustments and other

​

—

​

—

​

—

Balance as of December 31, 2024

 

10,616

 

526

 

11,141

​

​

​

​

​

​

​

Balance as of January 1, 2025

 

10,616

 

526

 

11,141

Change in provision for ECL

 

—

 

242

 

242

Additions/Reductions

 

4,672

 

—

 

4,672

Recoveries collected

 

(271)

 

—

 

(271)

Deduction from allowance

 

(1,843)

 

—

 

(1,843)

Currency translation adjustments and other

​

145

​

—

​

145

Balance as of December 31, 2025

 

13,319

 

768

 

14,086

Schedule of inventories

​

​

​

​

​

​

​

  ​ ​ ​

Dec 31

  ​ ​ ​

Dec 31

​

​

2025

​

2024

​

  ​ ​ ​

in k€

  ​ ​ ​

in k€

Raw materials

​

26,984

​

29,455

Work-in-progress

​

2,333

 

1,667

Total inventories

​

29,317

 

31,122

Schedule of prepaid expenses and other current assets

​

​

​

​

​

​

in k€

  ​ ​ ​

December 31, 2025

  ​ ​ ​

December 31, 2024

Prepaid expenses

​

18,970

​

22,240

Other current assets

 

11,510

 

23,279

Total prepaid expenses and other current assets

 

30,480

 

45,519