@hir11094
The TL-WN725N sold in Japan is an export product, while matches the local laws and regulations; Only the devices sold in mainland of China should be certified SRRC.
Meanwhile, we do not provide international warranty; if you need use the network adapter in China, you can buy one when you came there.
There is a TL-WN725N sold in China as well, while it is the domestic product. For more information, you can email the tech support: fae@tp-link.com.cn.
https://www.tp-link.com.cn/search.html?keywords=TL-WN725N
Note: They are able to provide English service.