According to the official website of HKU, there are several places in HKU that provide mobile phone charging, including:

1. Library: The library of the University of Hong Kong has a computer room and electronic equipment, and also provides some charging equipment, such as charging treasures and sockets, so students can charge their mobile phones.

2. Restaurants: Some restaurants in HKU also provide charging equipment, such as charging treasures and sockets. Students can charge their mobile phones there.

There are also some charging devices in the laboratories, research institutions and department offices of the University of Hong Kong. In addition, there are some shops, cafes and other places that provide charging services around the University of Hong Kong.

The University of Hong Kong (HKU) is a comprehensive international public research university in Hong Kong, China, and is known as the "Ivy League" in Asia.