According to IAS 16 "Property, Plant , Equipment" regarding the disclosure,
Paragraph 73(d), the financial statements shall disclose, for each class of property, plant and equipment, the gross carrying amount and the accumulated depreciation (aggregated with accumulated impairment losses) at the beginning and end of the period.
Paragraph 79(c) , users of financial statements may also find the following information relevant to their needs: the carrying amount of property, plant and equipment retried from active use and not classified as held for sale.
According to paragraph 73 (d), it implies that the Company should set up accumulated impairment losses for the impaired assets instead of writing off the cost and accumulated depreciation of such assets.
According to paragraph 79 (c), it implies that the Company should maintain the assets which are tried from active in the book under the caption of the assets retried from active use, instead of writing off the cost and accumulated depreciation of such assets. .
The writing off of assets should be made only such assets are no longer existed in the Company by disposing or destroying them.
2. Cost of dismantlement
The cost of dismantlement shall be recorded in the period which the activity of dismantlement is commenced. However, the Company can appropriate the retained earnings as the reserve for the dismantlement cost in the book.