Primary Mathematics World Contest
The Primary Mathematics World Contest (PMWC; traditional Chinese: 保良局小學數學世界邀請賽; simplified Chinese: 保良局小学数学世界邀请赛) is an annual math competition for primary school students in Hong Kong. It was first held in 1997 and is sponsored by Po Leung Kuk.
Source: Wikipedia — Primary Mathematics World Contest (CC BY-SA 4.0)