- 2025 The 5th SPICE & the 2nd I-WIT @ Yogyakarta, Indonesia
- 2024 The 4th SPICE & the 1st I-WIT @ Kaohsiung, Taiwan
- 2023 The 3rd SPICE (aka SMILE Symposium) @ Hachioji, Tokyo
- 2022 The 2nd SPICE (aka SMILE Symposium), online
- 2021 The 1st SPICE (aka SMILE Symposium), online