What's ISIN?

International Securities Identification Number
"Thai ISIN Code" is Constracted according to the standard ISO 6166.
Each code contains 12 digits :

A ) Prefix ( 2 digits )
B ) Basic number ( 9 digits )
C ) Checking digit ( 1 digit )

A ) PREFIX ( 2 digits )

Alpha - 2 country code ( according to standard ISO 3166 ) 'TH' = Thailand


B ) Basic Number ( 9 digits )

ba) The first group of 4 digits is code of company.
Example : 0001 , 0002 , 0003 ,..........

bb) The second group of 2 digits is type of securities.
Example :

01 = common stock , unit trust
02 = preferred stock
03 = debenture
04 = convertible debenture
05 = warrant
06 = short-term warrant
07 = short-term debenture
08 = derivative warrant
10 = transferable subscription rights
99 = thai baht currency

bc) The third group of 2 digits is date of maturity which contains :
- the first digit is the maturity year code :

Maturity Year
Code
Maturity Year
Code
Maturity Year
Code
Maturity Year
Code
Maturity Year
Code
1991
1
2001
B
2011
L
2021
1
2031
B
1992
2
2002
C
2012
M
2022
2
2032
C
1993
3
2003
D
2013
N
2023
3
2033
D
1994
4
2004
E
2014
O
2024
4
2034
E
1995
5
2005
F
2015
P
2025
5
2035
F
1996
6
2006
G
2016
Q
2026
6
.
.
1997
7
2007
H
2017
R
2027
7
.
.
1998
8
2008
I
2018
S
2028
8
.
.
1999
9
2009
J
2019
T
2029
9
.
.
2000
A
2010
K
2020
U
2030
A
.
.

- the second digit is the maturity month code : 1= Jan., 2= Feb.,......, 9= Sep. As of October, the second digit code will be alphbet. A= Oct., B= Nov., C= Dec.
- common stock / preferred stock defines Z when changing par value.

bd) 1 digit is reserved for internal use.
common stock / preferred stock : 0 = Local / 1 = Foreign

if unit trust changes the extended life via exchange the old certificates :
A = Local / B = Foreign
debentures :
0 = Local fixed interest rate
1 = Local floated interest rate
2 = Foreign fixed interest rate
3 = Foreign float interest rate
4 = Local fixed interest rate with low par when compared to the first issue
5 = Local fixed interest rate with high par when compared to the first issue
6 = Foreign fixed interest rate with low par when compared to the first issue
7 = Foreign fixed interest rate with high par when compared to the first issue
8 = Local zero coupon
9 = Foreign zero coupon
convertible debentures :
0 = Local fixed interest rate
1 = Local floated interest rate
3 = Foreign fixed interest rate
4 = Foreign float interest rate

derivative warrants :
0 = Fully-Covered / Share Settlement (Local)
1 = Fully-Covered / Share Settlement (Foreign)
2 = Partial Collateralized / Share Settlement (Local)
3 = Partial Collateralized / Share Settlement (Foreign)
4 = Partial Collateralized / Cash Settlement (Local)
5 = Partial Collateralized / Cash Settlement (Foreign)
6 = Non-Collateralized / Share Settlement (Local)
7 = Non-Collateralized / Share Settlement (Foreign)
8 = Non-Collateralized / Cash Settlement (Local)
9 = Non-Collateralized / Cash Settlement (Foreign)

C ) CHECK DIGIT ( 1 digit )
Computed according to modules 10 " Double-Add-Double "
Example :
The Industrial Finance Corporation of Thailand
Warrant whose expiration date is 1997/11/07 (yyy/mm/dd).
T H - 0 0 1 3 0 5 7 B 0
2 9 1 7 0 0 1 3 0 5 7 1 1 0
1 2 1 2 1 2 1 2 1 2 1 2 1 2
2 18 1 14 0 0 1 6 0 10 7 2 1 0 2+1+8+1+1+4+0+0+1+6+0+1+0+7+2+1+0 = 35
Check digit = 5

PTT Public Company Limited Ordinary Share (Local)
T H - 0 6 4 6 0 1 0 0 0
2 9 1 7 0 6 4 6 0 1 0 0 0
2 1 2 1 2 1 2 1 2 1 2 1 2
4 9 2 7 0 6 8 6 0 1 0 0 0
= 4+9+2+7+0+6+8+6+0+1+0+0+0 = 43 Check digit = 7

Advanced Info Service Public Company Limited Ordinary Share (Foreign)
T H - 0 2 6 8 0 1 0 Z 1
2 9 1 7 0 2 6 8 0 1 0 3 5 1
1 2 1 2 1 2 1 2 1 2 1 2 1 2
2 1 8 1 1 4 0 4 6 1 6 0 2 0 6 5 2 =2+1+8+1+1+4+0+4+6+1+6+0+2+0+6+5+2 = 49 Check digit=1


 
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