Some parts are imported but it‘s probably as European as possible at the moment. Details about production can be found here: https://www.nager-it.de/en/maus/fertigung. Unfortunately their shop seem to be only accessible in German.
credit: https://www.reddit.com/r/BuyFromEU/comments/1ngg5r6/fair_and_european_computer_mouse/
Or just mass production…
Economies of scale play a role too, and China certainly has that. Neglecting the environment and employee rights aren’t really a big deal in there, but in Germany they are. On top of that, there are also big differences in living standards, which is reflected in the wages. All of that stacked together, and you end up with massive price differences.
Most important role by far. For example their wood wheel is (currently) hand made.
And I think china is much better at the environment thing then you think. I know they are insane when it comes to chemical waste. Idk about germany, but usa (and my country, and others I know of) is far worse when it comes to polution per product.
Nothing of it matters as I will never buy a mouse without 5 buttons. I could tolerate a wire, barely.
Oh, and the best for the environment is to not buy a new mouse unless you need it. Mine is like over 5 years old and I won’t get a new one until it breaks.
Anyway this seems like a good thing they want to do. No matter how bs their cost breakdown page is.