Hong Kong’s fourth largest mobile operator SmartTone named Anna Yip (pictured) as its new CEO, replacing Douglas Li who stepped down more than nine months ago.

CTO Stephen Chau has served as interim CEO since Li left the company in August. Li served as CEO for more than 18 years over two stints.

Yip joins SmarTone from MasterCard Asia/Pacific, where she was head of Hong Kong and Macau. Prior to that she was the managing director for corporate planning and international strategy at United Overseas Bank in Singapore and also was partner with McKinsey & Company in Greater China.

Chau will remain as executive director.