According to the “MSE securities Index calculation rule” Top-20 index basket is renewed every six months. This time following 20 Joint Stock Companies, which lead by its market capitalization and daily average trading value, have been included in the new basket based on the second half year indicator of 2011. Joint Stock Companies included in the basket beginning from January 1, 2012 are: 1. APU 2. BAGANUUR 3. SHARIIN GOL 4. TAVAN TOLGOI 5. MOGOIN GOL 6. SHIVEE OVOO 7. B D SEC 8. GOBI 9. ADUUNCHULUUN 10. KHUKH GAN 11. MON.DEV.RECOURSES 12. ULSIIN IKH DELGUUR 13. REMICON 14. TALKH CHIKHER 15. SILIKAT 16. BERKH UUL 17. BAYANGOL 18. MON TSAKH KHOLBOO 19. JENCO TOUR BURO 20. MONGOL SHILTGEEN