They actually look ok to me. The fact that they're fuel doesn't at all imply that they have chemicals in them, it just means that they'll burn.
The fact that they're made of hardwood means you don't have to worry about the phenols that are found in pine. And there's no problem with them being made of sawdust -- they're just using something that used to be thrown away.
Smell them and see if they have any odor to them. If not, try them out. In fact, if I can find some near me, I'm going to buy a bag and see what they're like. I can't find any suitable pellets here, and I absolutely hate fleece.