7 Production cost of goods sold

Million CHF

2014

2013

Material expenses

(3,163)

(3,291)

Fuel expenses

(1,141)

(1,198)

Electricity expenses

(918)

(899)

Personnel expenses

(1,578)

(1,635)

Depreciation, amortization and impairment

(1,184)

(1,279)

Other production expenses

(2,539)

(2,692)

Change in inventory

(26)

(93)

Total

(10,548)

(11,087)