4. Inventories and work in progress

 

31.12.2022 CHF 1000

31.12.2021 CHF 1000

Raw materials

2 128

1 138

Consumables and supplies

112

66

Semi-finished products

1 092

1 076

Merchandise

51

50

Prepayments for inventories

28

109

Value allowance on inventories

–1 088

–1 071

Total inventories

2 323

1 368

Long-term customer contracts

12 929

44 042

Value allowance on long-term customer contracts

–42

–7 450

Down payments received for long-term customer contracts

–38

–555

Total work in progress

12 849

36 037

Total inventories and work in progress

15 172

37 405