Thann is fantastic and is from Thailand. IIRC, NH F kits had Thann and also available at TG shower lounges. Lemongrass appears to be dominant scent with Thann. Thann retail shops can be found in Asia
But we all know that hotel product, beyond the name, not always the same thing as the retail product. Will be made under license from some hotel supply company with formulations dissimilar to the "real" thing