| No. |
Name |
Date |
Place |
| 1 |
First IJSO |
5-14 December, 2004 |
Indonesia, Jakarta |
| 2 |
Second IJSO |
4-13 December, 2005 |
Indonesia, Yogyakarta |
| 3 |
Third IJSO |
3-12 December, 2006 |
Brazil, Sao Paulo |
| 4 |
Fourth IJSO |
2-11 December, 2007 |
Taipei, Taiwan |
| 5 |
Fifth IJSO |
7-16 December, 2008 |
Gyeong-Nam, Republic of Korea |
| 6 |
Sixth IJSO |
2009 |
Azerbaijan |
| 7 |
Seventh IJSO |
2010 |
Nigeria |
|