|in CHF thousand at 31 December||2018||2017|
|Raw materials, auxiliary materials and supplies||5,392||15,262|
|Semi-finished and finished products||11,384||15,914|
|Total inventories gross||29,220||46,189|
|./. allowance on inventories||–8,131||–13,939|
|Total inventories net||21,089||32,250|
In the 2017 financial year, the allowance on inventories includes additional write-downs amounting to CHF 4,122,000 relating to the Industrial Systems segment. See also note 4.2.