Welcome to the chemical industry.....
It happens all the time and is called private labeling. The same product is used in many products, different containers, different pricing, different target consumer.
When I worked for a company that manufactured polyurethane sealants, we had containers that were aluminum silk screened that sold to commercially to contractors for 15 bucks. The same stuff was packed in cardboard containers under a different name and sold for 5 dollars in home depot.
S100 is targeted for a different application, and is priced so it is competitive in that segment. Is it the same? No one knows for sure, but a company can claim that a product is different and often does so even though the ACTIVE ingredients are the same. What is commonly done, is trickery to make someone feel as if the product is different by changing the packaging, color, or smell, name,etc,etc. There are thousands of wax products out there.......if you think for a minute that there are just as many manufacturers out there, show them to me, I would like to see them!
DK