actually japan specifically has pretty strict country of origin labeling laws that japanese companies have to follow and all major parts (bearings, gears, roller clutches etc (basically everything outside of screws, o rings and washers) have been clearly labeled where it was made and by what company if it was a sourced part like bearings.
it’s actually so strict the bag the part is packed in is labeled “printed in X” separate from the label on the part itself stating where it was made for my shimano parts