Notes to the Consolidated Financial Statements in CHF million Land and Plant and Other Assets Total buildings machinery operating under con- assets struction Cost 2017 Opening balance at January 1, 2017 820.4 795.7 539.4 30.4 2,185.9 Change in scope of consolidation – 4.8 2.4 0.3 7.5 Additions 12.7 26.0 53.7 39.2 131.6 Disposals (17.6) (41.2) (40.0) – (98.8) Other transfers 5.0 10.7 6.3 (18.6) 3.4 Currency translation adjustment 30.0 30.0 19.2 2.0 81.2 Closing balance at December 31, 2017 850.5 826.0 581.0 53.3 2,310.8 Accumulated depreciation 2017 Opening balance at January 1, 2017 (332.7) (643.7) (396.7) – (1,373.1) Additions (22.0) (38.1) (44.8) – (104.9) Disposals 12.4 40.2 37.7 – 90.3 Other transfers – (3.7) 0.3 – (3.4) Currency translation adjustment (13.9) (23.6) (15.9) – (53.4) Closing balance at December 31, 2017 (356.2) (668.9) (419.4) – (1,444.5) Net book values at December 31, 2017 494.3 157.1 161.6 53.3 866.3 Other operating assets consist mainly of office equipment, testing instruments, leasehold improvements and vehicles. Capital expenditure, shown as additions to cost, relates primarily to manufacturing facilities enhancements and extensions of sales organizations. Additions to accumulated depreciation are included in ‘depreciation and amortization’. (9) Investment property The Group has no material investment property. (10) Investments in associates and joint ventures The Group has not acquired new ownership interests in associates during the reporting period. For joint ventures refer to note (5.2). 2018 Financial Report | 45