Note 9. Property, plant and equipment and intangible assets

Property, plant and equipment and intangible assets are written off if the condition of the asset does not enable further usage for production purposes. As of 31 December 2015 the book value of the assets (Machinery and equipment) leased under financial lease is EUR 1,422 thousand (31 December 2014: EUR 1,664 thousand).

The Group's non-current assets in the amount of EUR 12,911 thousand (31 December 2014: EUR 13,515 thousand) have been pledged as a security for the bank loans (Note 10), as a part of commercial pledge. A mortgage for the Group's non-current assets (land, buildings and facilities) in the book value amount of EUR 30,849 thousand (31 December 2014: EUR 31,422 thousand) serves as a security to the bank loans (Note 10).

During the year, the Group has capitalised borrowing costs amounting to EUR 34 thousand (2014: EUR 24 thousand) on qualifying assets. Borrowing costs were capitalised at the weighted average rate of its general borrowings of 1.02% (2014: 1.11%).