participant
- Yuen, Ka Ming (timber) Instructor 2017
- Yuen, Ka Ming (timber) Instructor 2018
- Yuen, Ka Ming (timber) Instructor 2019
- Yuen, Ka Ming (timber) Instructor 2020
- Yuen, Ka Ming (timber) Instructor 2021
- Yuen, Ka Ming (timber) Instructor 2022
- Yuen, Ka Ming (timber) Instructor 2023