You can use Batch to send notifications to iOS users who live in China or travel there occasionally.
Huawei/Honor devices: You can use Batch to send notifications to users using Huawei and Honor Devices in China (see how to integrate Batch with Huawei Mobile Services).
Other Android devices: Batch relies on Firebase Cloud Messaging (FCM) to deliver notifications to the rest of your users in China. In order to get a device token and handle push notifications, your users’ device must come with a recent version of Google Play Services. Due to local restrictions, none of the devices sold in China include Google Play Services and most of the connections to Google are blocked. As a consequence, you will need to rely on a local push provider to send notifications to these Chinese users. Here are a few services you can use: Getui, Jpush, Baidu Cloud Push, Umeng.
These local restrictions don't apply to Batch's In-App messages. In-App campaigns are a good alternative if you are not planning to use a local push provider on Android and you still want to communicate to your Chinese users.