One Hundred | 21 & 17 fl | U/C

[Spokes]

I think there is some truth to that actually.   In this article, having already mentioned the first two towers at The 100, they say:

Momentum still wants to build two more towers on Victoria Street South and we also have additional storeys being added to the Huck Glove building.

I don't know what they own, but wouldn't be surprised.