I don't know how you guys think of it. But I'm completely out of it at $10.
Apply a bit of Mungerism. If you invert it, ask yourself: assume you own no NTP and someone tells you Kaisa has just taken control over this net-net public listed property developer called NTP, will you buy it? You will look at Kaisa's history, not NTP's history. You will see all sorts of red flags. Huge risk of them "stealing" the 200m cash to cover their other businesses.
To me, Koo at the helm was a margin of safety, part of the thesis. So, the painful truth is that thesis is broken. It doesn't mean it won't go up or become a multi-bagger. But that will be based on a completely different thesis, something a lot of speculative.