International Mathematical Olympiad: Preliminary Selection Contest – Hong Kong 2022 (organized by International Mathematical Olympiad (Hong Kong) Committee)

International Mathematical Olympiad: Preliminary Selection Contest – Hong Kong 2022
(organized by International Mathematical Olympiad (Hong Kong) Committee)

Honourable Mention
4C Chan Pak Ho

International Mathematics Olympiad Competition of Southeast Asia
(organized by IMOCSEA and Miss Man Education)
Diamond Award
4C Chan Pak Ho