To pair your Thinka with Homekit simply download the Thinka Setup app, open it on your smartphone, select your Thinka, tap choose a home then select the home you'd like to add the Thinka to and you're all set.
N.B. A device or instance will not show up in homekit unless both name and location are set. Device/instance name and location can be set either during inclusion, under the information tab or using the Thinka setup app if adding your device with SmartStart.
Here you first choose the device and enter the password if required. Then Choose a home enter Homekit pin on the Thinka device. After that the devices and the home will be create on Apple Home by the app.