Expected credit losses are recognized on the initial recognition of our trade accounts receivable and contract assets. In each subsequent reporting period, even if a loss has not yet been incurred, credit losses are recognized based on the history of credit losses and current conditions, as well as reasonable and supportable forecasts affecting collectability. We utilize a model to estimate the expected credit losses applicable to our trade accounts receivable and contract assets. This model considers our historical performance and the economic environment, as well as the credit risk and its expected development for each segmented group of customers that share similar risk characteristics. It is our practice to write off receivables when all legal options for collection have been exhausted.

Activity in the allowance for credit losses for the six months ended June 30, 2025 is as follows: