Apparently, there was a reading comprehension error regarding that first paragraph. I indeed interpreted it as if that 17.7 million was entirely from losses, and the rest then from deferred depreciation and non-deductible interest expenses, but of course, that’s not how it is.
Well, I had to read more of that Note 5, and the last paragraph has a breakdown of the expiration of losses: “Tax losses from Finnish operations expire as follows: 3.0 million euros in 2028, 10.0 million euros in 2029, and 1.6 million euros in 2031.”
In total, those would be 14.6 million. But those seem to be indeed deductible losses, meaning they can be used to reduce taxable income. Consequently, the tax benefit would be, for example, with a 20% tax rate: 0.2 * 14.6 million = 2.92 million.