4.18 Further details of tangible and intangible assets

The remaining tangible fixed assets stated at cost as of 31 December 2017 in note 4.16 consist mainly of furniture and fixtures in the amount of CHF 19,475,000 (2016: CHF 17,185,000) and IT systems (hardware) in the amount of CHF 12,299,000 (2016: CHF 10,960,000).

As at 31 December 2017, there were no commitments to purchase property, plant and equipment (2016: CHF 4,627,000). The commitment in the prior year concerned the replacement of a production machine in the Security Printing division.

Other tangible fixed assets include a write-down of CHF 781,000 as part of the impairment made for the Atlantic Zeiser Group. See also note 4.2.

In the 2017 and 2016 financial years, no bank borrowings were secured on land and buildings. Lease rentals amounted to CHF 10,056,000 (2016: CHF 10,254,000), while CHF 683,000 (2016: CHF 706,000) was related to other leased tangible assets.