At present, each issue of debt security has a unique identification code comprising alphabets and numbers. There are 2 types of debt securities identification codes in Thailand as follows:
1. International Securities Identification Number (ISIN) is used to identify the issue of debt securities traded in primary market and securities for transaction relating to the Thailand Securities Depository Co. Ltd. (TSD) operated at the BOT.
2. Thai BMA Symbol is used to identify the issue of debt securities traded in secondary market both by direct negotiation and by Bond Electronic Exchange (BEX).
For bidding via BOT’s electronic bidding (e-Bidding) system, there are two stated codes available. When the bidders choose one code, the system will also display the other of the same issue.
Major Differences between ISIN and Thai BMA Symbol
|
Topics |
International Securities
Identification Number (ISIN) |
Thai BMA Symbol |
| 1. Code Issuer |
Thailand Securities Depository Co.,Ltd. (TSD) |
Thai Bond Market Association (ThaiBMA) |
|
2. Country Code |
Required; it is international code. |
Not required; it is domestic code. |
|
3. Number of Digits |
12 alphabets + numerical digits |
6-12 alphabets + numerical digits |
|
4. Issuer code vs Security code |
Issuer code is defined by 4 numerical digits, e.g. 0623 refers to the Ministry of Finance and 0655 refers to the Bank of Thailand. |
Security code which implies the issuer of security is defined by alphabets, easy to understand alphabets, e.g. BOT or CB represents the Bank of Thailand, EXAT means the Expressway And Rapid Transit Authority Of Thailand.
Note : special case, LB is used for Government Loan Bonds while TB is used for Treasury Bills |
|
5. Maturity Year (A.D.) |
Defined by 1 digit of number or alphabet, e.g. 9 is for 1999 A.D., A is for 2000 A.D. and I is for 2008 A.D. |
Defined by the last 2 numerical digits of the year in A.D. e.g., 99, 00 and 08 are used to represent 1999, 2000 and 2008 A.D., respectively. |
|
6. Maturity Month |
Jan.-Sep. are defined by number 1- 9 while Oct., Nov. and Dec. are defined by A, B and C. |
Jan.-Sep. are defined by number 1- 9 while Oct, Nov. and Dec. are defined by O,N and D. |
|
7. Maturity Date |
- |
Due date is defined for securities matured within
1 year and for corporate short-term debt securities. |
|
8. Checking Digit |
The last numerical digit is used as a check digit which is derived from calculation. |
No checking digit. |
Samples of International Securities Identification Number (ISIN) and Thai Bond Market Association Symbol (ThaiBMA Symbol)
|
Debt Securities |
ISIN Code |
ThaiBMA Symbol |
|
Special Issue Government Bond FY. B.E.2547/3,
Due date 14/05/2008 |
TH062303I503 |
LB085A |
|
Government Housing Bank Bond B.E.2549/3
>Due date 16/02/2014 |
TH065203O203 |
GHB142A |
|
Bank of Thailand Bond 9/182/47
Due date 02/09/2004 |
TH0655E7E980 |
CB04902B |
|
Treasury Bill L36/90/47
Due date 01/09/2004 |
TH062307E982 |
TB04901A |