| No. | Subject | Registered Date |
|---|---|---|
| 11 | 21st ABC | 2025-07-25 |
| 10 | ELBC 2024 | 2024-02-14 |
| 9 | 20th ABC | 2023-04-20 |
| 8 | Mr.Choi became the CHAIRMAN of Gwangju - Jeonnam Business Counsil ! | 2023-04-20 |
| 7 | 18 ELBC | 2022-04-22 |
| 6 | 17 ELBC | 2019-11-12 |
| 5 | 18th Asian Battery Conference(18 ABC) | 2018-09-28 |
| 4 | 16 ELBC VIENNA | 2017-10-02 |
| 3 | 17th Asian Battery Conference and Exhibition (17ABC) | 2017-04-28 |
| 2 | ILBF CHINA 2017 | 2017-03-21 |