On 25th February 2018, Sun Kei students participated in the 11th Hua Xia Cup Mathematical Olympiad (Hong Kong) Second Round organised by the Hong Kong Mathematical Olympiad Association. LAU Siu-hei (1M) won the first honour, and other students won the second and third honour in the competition.
List of award recipients:
| Honour | Class | English Name |
|---|---|---|
| First Honour | 1M | LAU Siu-hei |
| Second Honour | 1M | CHAN Lok-hang |
| CHEUNG Ming-ho | ||
| 2R | KWOK ho-lam | |
| NG Man-ho | ||
| 2M | AU Kwun-yat | |
| Third Honour | 1M | LEE Waai-ngoi |
| 1I | LAM Ping-hei |
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