The YAG is missioned to engage with young members, providing them support on professional development and networking and encourage active participation in the institute's affairs and contribution to the industry's development. In addition, the YAG also aims to leverage on young member’s innovation and fresh perspectives for innovative and strategic suggestions in areas such as design technology, community engagement and promotional strategies for the institute.
In 2025 the HKIA Council advised that the former Young Member Committee (YMC) to be restructured as the Young Affairs Group (thereafter referred as YAG), constituting of and serving members below or 40 years old and directly reporting to the Council.
| Position | Name |
| Co-Chair | LAM Ho Wang Owen |
| Deputy Co-Chair | KWAN Man Ho |
| Deputy Co-Chair | MA Cho Fai Joe |
| Member | CHAN Angus Wing Chung |
| Member | CHAN Hoi Yan |
| Member | CHAN Kai Ying Claudia |
| Member | Cheung Cheuk Ming |
| Member | CHEUNG Ka Iong |
| Member | Cheung Pak Yin |
| Member | CHOW Kwai Shun Mirage |
| Member | Chu Ying Hung |
| Member | Fung Shuk Kwan |
| Member | HUI Yui Gi Catherine |
| Member | HUNG Wai Yin Louis |
| Member | LEE Fook Hong Timothy |
| Member | SO Ho Tung Ruby |
| Member | WONG Sin Yee |
| Member | WU Hei Nam |