HS107 and HS300 do not currently work with the TP-Link/Kasa SmartThings integration. I am currently working on it and hope to have something soon. (It is currently working in my Hubitat environment except for capturing the device label, I have to use temporary and update the label.)
Testing is on the HS107 (I have one). I believe the HS300 is the same on/off command structure. For HS300, there will initially not be an Energy Monitor function.