I'd recommend checking out Asket. They have a lot of transparency. I assume that not every step of every product is within the EU, but you should be able to see it per product.

I have been quite happy with the majority of Asket's clothes. I originally found them when looking for more environmentally friendly options.

I have a pair of their normal length pants and they are probably on their 7th year. No repairs needed yet, even with around 3 wears a week. These are heavier duty than some of their other models. I had a pair of lighter summer pants that only lasted a few years before the zipper became a problem.

Huge respect on standing one's ground like this.