2. Accounting and valuation principles

The main items are recognised as follows:

Cash and cash equivalents

Cash and cash equivalents comprise cash holdings and bank and postal account balances, and are recognised on the balance sheet at nominal value.

Current assets with a stock exchange price

Derivative financial instruments held for trading with a directly observable market price or directly observable input parameters are recognised at fair value. Fluctuation reserves are not created.

Hedging transactions

Future cash flows in foreign currencies can be hedged. The corresponding derivative is recognised in profit or loss on the occurrence of the underlying transaction.

Receivables from goods and services

Trade accounts receivable are recognised at nominal value and impaired if necessary. The amount at the end of the period may be subjected to a flat rate impairment at a rate accepted for tax purposes.

Other receivables

Other receivables are measured at nominal values. Any counterparty risks are accounted for by means of necessary impairment.

Provided the conditions for large orders are met, long-term construction contracts are valued in accordance with the percentage of completion (PoC) method. Following the consolidated financial statements, these are recognised in other receivables. Under the PoC method, in addition to acquisition or production costs a portion of profits corresponding to the percentage of completion of the order is calculated, provided that the order’s realisation is reasonably certain. The percentage of completion is calculated on the basis of the accrued costs in relation to the anticipated total costs (cost to cost). If the conditions for applying the PoC method are not met, recognition is under non-invoiced services.

Inventories and non-invoiced services

Inventories and non-invoiced services are recognised at acquisition or production cost taking account of economically necessary impairments. Otherwise impairment may be done at a rate accepted for tax purposes.

Prepaid expenses and accrued income/deferred income and accrued expenses

Prepaid expenses and accrued income/deferred income and accrued expenses comprise the asset and liability items resulting from the accrual and deferral of individual items of expense and income in accordance with the accrual and matching principle. The origination costs of interest-bearing liabilities are capitalised under prepaid expenses and accrued income. Accruals and deferrals for goods and services delivered or received but not yet invoiced are recognised in prepaid expenses and accrued income/deferred income and accrued expenses. Prepaid expenses and accrued income/deferred income and accrued expenses are recognised at nominal values.

Financial assets and shareholdings

Financial assets and shareholdings are recognised at cost taking account of necessary impairment. Minority interests (less than 20 per cent) are recognised as financial assets. Financial assets and shareholdings are measured on a unit of account basis.

Tangible assets

Tangible assets are recognised at acquisition or production cost less accumulated depreciation and any impairment losses. Amortisation is done on a straight-line basis over the subsequent useful life.

Intangible assets

Intangible assets are amortised on a straight-line basis. If there are indications of overvaluation, necessary impairments are taken into account.

Current liabilities

Current liabilities are recognised at nominal value.

Non-current liabilities

Non-current liabilities comprise a) long-term, interest-bearing financial liabilities at nominal value and b) other non-interest-bearing long-term liabilities.

Provisions

A provision is a probable liability on the basis of a past event; the amount of the liability and/or the date on which it will fall due is uncertain but can be estimated. The amount of provisions is based on the management’s assessment, and reflects the future outflows of funds that can be anticipated as of the balance sheet date.

Treasury shares

Treasury shares are recognised as a negative item in shareholders’ equity on the date of acquisition, without any subsequent measurement. On resale the profit or loss is booked directly to free reserves from earnings under other reserves.