Powtran sent me through this brochure of their 2019 range that includes an announcement of their new PI150 "Smart" VFD.
Also they have are offering a cut down "basic" PI500A model inverter
I have requested more details but nothing has come through probably because they are all still on Chinese new year holidays.
Please note I receive nothing from Powtran for doing this - I'm just a DIY fan of their products.