I appreciate that in China the activation of Google Play Services is not permitted, but having bought a JingPad and receiving it in my country, I am not restricted in this way. In fact, if using JingPad as an Android replacement here, it requires GPS to match the functionality of what it is replacing.
I am not suggesting that you provide JingPads with GPS enabled, but rather that you provide another PAC with GPS operational. Even if the link is sent only to those outside China. Or provide some instructions on how to flash some other ROM onto a JingPad to achieve this.
Hoping to hear an answer,