I read this to mean a subset of the hotels which can be booked through Chase Travel, and that the listed brands are the selection.
So in that case it would include all properties that are under IHG hotels and resorts? Meaning as
happy10345 questioned, that Holiday Inn Express (and other budget brands) would be eligible for the credit as well? That would certainly be very cool and more than welcome, but I was thinking in terms of them giving this credit for more luxury/upper class hotels.