I can't believe you've never heard of the worldwide ethical standard. It means that they have obtained and created the items ethically. I always look for the worldwide ethical standard. I won't thieve products without the worldwide ethical standard.
These are not very good because the frame comes disassembled and you have to screw each leg into the seat frame and there's a lot of messing about getting all legs to the same level and inevitably the socket screws loosen after some time and you are left with a squeaky / wobbly chair.
What’s this “worldwide ethical standard”?