It is if you look at the ones available from St John Street Cycles.
I have a Brompification one - I don't remember it costing as much as the TiPW ones.
Nor was it as cheap as the one you've indicated.
I think there might be some Ti which is higher grade and also the machining on the bromptonification stuff is top end (can’t say about SJS stuff). I still don’t have one of them in my hands but hopefully will by end of the month so will report back then
Is this titanium seatpost too good to be true?
https://www.ebay.co.uk/i/222908589001?chn=ps&var=521732422215