Those chips were made for Dal Negro 20 years ago. They must have recently dumped them.Certainly all appear to be L1 CPC chips. Can’t tell if they’ve just ordered blanks and applied their own labels or if they’re inlaid.
My guess would be they’re simply buying CPC chips in bulk at a potentially reduced rate, or just selling them at thin margins under their own name. L1 inlaid chips are less than $2.00 from CPC if I recall correctly.
@David Spragg might be able to shed more light on the matter.