Apple press release:

Apple today announced that Isabel Ge Mahe, vice president of Wireless Technologies, has been named vice president and managing director of Greater China, reporting to CEO Tim Cook and COO Jeff Williams. In this newly created role, Isabel will provide leadership and coordination across Apple’s China-based team.

And:

lsabel has led Apple’s wireless technologies software engineering teams for nine years, focusing on development of cellular, Wi-Fi, Bluetooth, NFC, location and motion technologies for nearly every Apple product. She has also overseen the engineering teams developing Apple Pay, HomeKit and CarPlay.

In China, she has worked closely with Apple’s R&D team and carrier partners to develop new China-specific features for iPhone and iPad, including recently announced iOS 11 features such as QR Code support, SMS fraud prevention and enabling the use of a phone number as an Apple ID.

This is a highly visible role in an area critical to Apple’s growth.