The preparation of the consolidated financial statements in compliance with IFRS necessitates assumptions and estimates affecting the amounts and the reporting of the recognized assets and debts, income and expenses, and contingencies. These assumptions and estimates comply with the conditions and appraisals prevailing on the statement of financial position date. In this regard, they also impact the amount of income and expenses reported on for the fiscal years in question. The assumptions on which the estimates are based relate primarily to the uniform determination of useful lives throughout the Group, the ascertainment of fair values of financial instruments, the recognition and measurement of provisions, the realizability of future tax benefits, and the assumptions in connection with impairment tests and purchase price allocations.
In individual cases, the actual values may differ from the assumptions and estimates that were made. Changes in value are recognized as soon as they become apparent and affect the net results for the period when the change occurred and, if applicable, in future reporting periods.
The expected useful life and depreciation of intangible assets, property, plant and equipment are based on past experience, plans and estimates. This includes estimates of the period and allocation of future cash inflows derived from the investments made and from future technical advancements.
Impairment tests are performed for assets if specific indicators point toward a possible impairment loss or reversal of an impairment loss. In the case of a possible impairment, an estimate must be made of the recoverable amount of the affected asset that corresponds to the higher value of the fair value less cost to sell or the value in use. To ascertain the value in use, the discounted future cash flows of the affected asset must be determined. The estimate of the discounted future cash flows contains significant assumptions such as, in particular, those regarding future selling prices and sales volumes, costs, and discount rates. Although WACKER is assuming that the estimates of the relevant expected useful lives and of discounted future cash flows, as well as the assumptions regarding the general economic conditions and the development of the economic sectors are reasonable, a change in the assumptions or circumstances might necessitate a change in the analysis. This could result in additional impairments or reversals of impairment losses in the future.
Significant risks inherent in the environmental protection provisions and in provisions stemming from claims for damages and onerous contracts are possible changes in the cost estimates, changes in the likelihood of their utilization, and enhanced statutory provisions concerning the elimination and prevention of environmental damage.
The accounting of pensions and similar obligations is in accordance with actuarial valuations. These valuations are based on statistical and other factors in order to anticipate future events. The factors include the discount rate, the expected return on plan assets, expected salary and pension increases, the mortality rate and rate increases for preventive healthcare. These assumptions could, due to changed market and economic conditions, vary considerably from actual developments, consequently leading to essential changes to pension and similar obligations, as well as the associated future expenses.
At the end of each reporting period, the Group assesses whether the probability of future tax benefits being realized is sufficient to recognize deferred taxes. Among other things, this requires that management evaluate the tax benefits resulting from currently available tax strategies and future taxable income, as well as taking additional positive and negative factors into account.