Thanks for your kind note and your inquiry. We do appreciate it.
As do many companies in America and frankly throughout the world, we have imitators who are trying to piggyback on the RIO brand. I do not know for sure what sites you are seeing, but the several I am aware of all emanate from a manufacturer who is based in Singapore and who then sells to a distributor in China. It has been this entity that has been the most visible in terms offering RIO like products that aren't made by RIO.
We are in the process of taking all the usual steps to obstruct or stop this activity, but as usual the legal wheedling is laborious and not particularly met with enthusiasm by the Chinese authorities. We have also thoroughly analyzed most of the lines they are producing and while we know they have ripped off our tapers almost exactly, there is nothing in the chemical makeup of their lines that comes close to what we are producing in terms of overall performance and durability.
I hope this helps you with your question. Again, thanks for your vote of support.
All the best,
[name redacted]