Part 1

Securities Information

1. General Information

1.1 General information of the Company

The Company name : Advanced Info Service Public Company Limited

Symbol for trading : ADVANC

Registered date on the SET: 5 November 1991

Market capitalization : Baht 621,376.92 million (as of 28 December 2012)

Registered capital : Baht 4,997,459,800

Paid-up capital : Baht 2,973,095,330

Total shareholders : 14,400 shareholders (as of 24 August 2012, the
latest book closing date for the rights to receive dividend)

Free float : 36.22% (as of 27 February 2012)

Nature of Businesses : - Provide mobile telephone service in the 900MHz
frequency under the

digital GSM technology

  - Provide mobile telephone service in the 1800MHz frequency under the
  digital GSM technology

  - Provide mobile telephone service in 2.1GHz frequency under the
  digital UMTS technology

- Import and distribute of handsets accessories

  - Provide voice and data communication service via telephone and
  optical fiber

- Provide payment business via mobile phone

- Distribute of cash card

- Call center service

  - Service provider in connection with international telephone and
  gateway.

- Networks provider and telecommunication service operator

Head office : 414 Phaholyothin Road, Samsen Nai, Phayathai, Bangkok
10400

Registered No. : Bor Mor Jor. 0107535000265

Website : http://www.ais.co.th

Telephone : (66) 2299 6000

Fax : (66) 2299 5165

American Depositary Receipt:

ADR ticker symbol : AVIFY

Exchange : Over The Counter (OTC)

Depositary : The Bank of New York Mellon

ADR to ORD share ratio : 1:1

ADR CUSIP number : 00753G103

1.2 General information of subsidiaries

as of 31 December 2012

+----------------------+----------------+------+-------+------+-------+
| Subsidiaries         | Business       | Re   | Par   | Pai  | perce |
|                      |                | gist | Value | d-up | ntage |
|                      |                | ered |       | Cap  | of    |
|                      |                | Cap  | (Baht | ital | Inves |
|                      |                | ital | per   |      | tment |
|                      |                |      | s     | (Mil |       |
|                      |                | (Mil | hare) | lion |       |
|                      |                | lion |       | B    |       |
|                      |                | Sh   |       | aht) |       |
|                      |                | are) |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Digital Phone        | Service        | 36   | 10    | 3,65 | 98.55 |
| Company Limited      | provider of    | 5.55 |       | 5.47 |       |
| (DPC)                | digital mobile |      |       |      |       |
|                      | phone network  |      |       |      |       |
| 404 Phaholyothin     | in 1800 MHz    |      |       |      |       |
| Center Tower,        | frequency      |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2299 6000 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2299 5455 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced Datanetwork | Service        | 9    | 10    | 95   | 51.00 |
| Communications       | provider of    | 5.75 |       | 7.52 | ^(1/) |
| Company Limited      | online data    |      |       |      |       |
| (ADC) (indirect      | communication  |      |       |      |       |
| subsidiary via DPC)  | service via    |      |       |      |       |
|                      | telephone      |      |       |      |       |
| 408/157,             | landlines and  |      |       |      |       |
| Phaholyothin Place   | optical fiber  |      |       |      |       |
| Tower,               |                |      |       |      |       |
|                      |                |      |       |      |       |
| 38^(th) Floor,       |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2270 1900 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2270 1860 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Website :            |                |      |       |      |       |
| www.adc.co.th        |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced Contact     | Service        | 27.2 | 10    | 272  | 99.99 |
| Center Company       | provider of    |      |       |      |       |
| Limited (ACC)        | call center    |      |       |      |       |
|                      |                |      |       |      |       |
| 414 Phaholyothin     |                |      |       |      |       |
| Road,                |                |      |       |      |       |
|                      |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2299 6000 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2299 5959 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced MPAY        | Service        | 30   | 10    | 300  | 99.99 |
| Company Limited      | provider of    |      |       |      |       |
|                      | payment        |      |       |      |       |
| (AMP)                | business via   |      |       |      |       |
|                      | mobile phone   |      |       |      |       |
| 408/60 Phaholyothin  |                |      |       |      |       |
| Place Tower,         |                |      |       |      |       |
|                      |                |      |       |      |       |
| 15^(th) Floor,       |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2687 4808 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2687 4788 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced Magic Card  | Distributor of | 25   | 10    | 250  | 99.99 |
| Company Limited      | cash card      |      |       |      |       |
| (AMC)                | business       |      |       |      |       |
|                      |                |      |       |      |       |
| 414 Phaholyothin     |                |      |       |      |       |
| Road,                |                |      |       |      |       |
|                      |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2299 6000 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2615 3330 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+

+----------------------+----------------+------+-------+------+-------+
| Subsidiaries         | Business       | Re   | Par   | Pai  | perce |
|                      |                | gist | Value | d-up | ntage |
|                      |                | ered |       | Cap  | of    |
|                      |                | Cap  | (Baht | ital | Inves |
|                      |                | ital | per   |      | tment |
|                      |                |      | s     | (Mil |       |
|                      |                | (Mil | hare) | lion |       |
|                      |                | lion |       | B    |       |
|                      |                | Sh   |       | aht) |       |
|                      |                | are) |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| AIN GlobalComm       | Service        | 2    | 100   | 100  | 99.99 |
| Company Limited      | provider of    |      |       |      |       |
| (AIN)                | international  |      |       |      |       |
|                      | telephone      |      |       |      |       |
| 408/127 Phaholyothin | service        |      |       |      |       |
| Place Tower,         | gateway        |      |       |      |       |
|                      |                |      |       |      |       |
| 29^(th) Floor,       |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2299 6000 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2278 7030 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Website :            |                |      |       |      |       |
| www.ain.co.th        |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Super Broadband      | Network        | 3    | 100   | 300  | 99.99 |
| Network Company      | operator and a |      |       |      |       |
| Limited (SBN)        | telecom        |      |       |      |       |
|                      | service        |      |       |      |       |
| 408/60 Phaholyothin  | operator i.e.  |      |       |      |       |
| Place Tower,         | Service        |      |       |      |       |
|                      | provider of    |      |       |      |       |
| 15^(th) Floor,       | internet       |      |       |      |       |
| Phaholyothin Road,   | (ISP),         |      |       |      |       |
| Samsennai,           | international  |      |       |      |       |
| Phayathai, Bangkok   | & national     |      |       |      |       |
|                      | internet       |      |       |      |       |
| Tel : (66) 2299 6000 | gateway, IPLC  |      |       |      |       |
|                      | and IP VPN,    |      |       |      |       |
| Fax : (66) 2619 8777 | voice over IP, |      |       |      |       |
|                      | and an IP      |      |       |      |       |
| Website :            | television     |      |       |      |       |
| www.sbn.co.th        |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Wireless Device      | Importer and   | 0.5  | 100   | 50   | 99.99 |
| Supply Company       | distributor of |      |       |      |       |
| Limited (WDS)        | handsets and   |      |       |      |       |
|                      | accessories    |      |       |      |       |
| 404 Phaholyothin     |                |      |       |      |       |
| Center Tower,        |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2299 5777 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2299 5200 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced Wireless    | Network        | 3.5  | 100   | 350  | 99.99 |
| Network Company      | operator, a    |      |       |      |       |
| Limited (AWN)        | telecom        |      |       |      |       |
|                      | service        |      |       |      |       |
| 408/60 Phaholyothin  | operator and   |      |       |      |       |
| Place Tower,         | computer       |      |       |      |       |
|                      | system service |      |       |      |       |
| 15^(th) Floor,       | provider.      |      |       |      |       |
| Phaholyothin Road,   | Currently, AWN |      |       |      |       |
| Samsennai,           | received an    |      |       |      |       |
| Phayathai, Bangkok   | Internet       |      |       |      |       |
|                      | License Type   |      |       |      |       |
| Tel : (66) 2299 6000 | I,             |      |       |      |       |
|                      | Tel            |      |       |      |       |
| Fax : (66) 2687 4986 | ecommunication |      |       |      |       |
|                      | Business       |      |       |      |       |
|                      | License Type   |      |       |      |       |
|                      | III, and       |      |       |      |       |
|                      | 2.1GHz License |      |       |      |       |
|                      | from NBTC      |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Mobile Broadband     | Currently not  | 1.2  | 100   | 120  | 99.99 |
| Business Company     | start the      |      |       |      |       |
| Limited (MBB)        | operation      |      |       |      |       |
|                      |                |      |       |      |       |
| (indirect subsidiary |                |      |       |      |       |
| via AWN)             |                |      |       |      |       |
|                      |                |      |       |      |       |
| 408/60 Phaholyothin  |                |      |       |      |       |
| Place Tower,         |                |      |       |      |       |
|                      |                |      |       |      |       |
| 15^(th) Floor,       |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced Mobile      | Currently not  | 1    | 100   | 100  | 99.99 |
| Broadband Company    | start the      |      |       |      |       |
| Limited (AMB)        | operation      |      |       |      |       |
|                      |                |      |       |      |       |
| (indirect subsidiary |                |      |       |      |       |
| via MBB)             |                |      |       |      |       |
|                      |                |      |       |      |       |
| 404 Phaholyothin     |                |      |       |      |       |
| Center Tower,        |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+

+----------------------+----------------+------+-------+------+-------+
| Subsidiaries         | Business       | Re   | Par   | Pai  | perce |
|                      |                | gist | Value | d-up | ntage |
|                      |                | ered |       | Cap  | of    |
|                      |                | Cap  | (Baht | ital | Inves |
|                      |                | ital | per   |      | tment |
|                      |                |      | s     | (Mil |       |
|                      |                | (Mil | hare) | lion |       |
|                      |                | lion |       | B    |       |
|                      |                | Sh   |       | aht) |       |
|                      |                | are) |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced Internet    | Service        | 24   | 10    | 240  | 99.99 |
| Revolution Company   | provider of    |      |       |      |       |
| Limited (AIR)        | internet       |      |       |      |       |
|                      |                |      |       |      |       |
| 408/60 Phaholyothin  |                |      |       |      |       |
| Place Tower,         |                |      |       |      |       |
|                      |                |      |       |      |       |
| 15^(th) Floor,       |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2299 6000 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2299 5200 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| MIMO Tech Company    | Operate IT,    | 0.5  | 100   | 50   | 99.99 |
| Limited (MMT)        | and content    |      |       |      |       |
|                      | aggregator     |      |       |      |       |
| 1291/1 Phaholyothin  | businesses     |      |       |      |       |
| Road,                |                |      |       |      |       |
|                      |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2299 6000 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2299 5165 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Fax Lite Company     | Operate in     | 0.01 | 100   | 1    | 99.97 |
| Limited (FXL)        | acquiring      |      |       |      |       |
|                      | and/or lease   |      |       |      |       |
| 1291/1 Phaholyothin  | building, and  |      |       |      |       |
| Road,                | related        |      |       |      |       |
|                      | facilities for |      |       |      |       |
| Samsennai,           | Tele           |      |       |      |       |
| Phayathai, Bangkok   | communications |      |       |      |       |
|                      | Business       |      |       |      |       |
| Tel : (66) 2299 6000 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2299 5165 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Advanced Broadband   | Currently not  | 0.01 | 100   | 1    | 99.97 |
| Network Company      | start the      |      |       |      |       |
| Limited (ABN)        | operation      |      |       |      |       |
|                      |                |      |       |      |       |
| 408/60 Phaholyothin  |                |      |       |      |       |
| Place Tower,         |                |      |       |      |       |
|                      |                |      |       |      |       |
| 15^(th) Floor,       |                |      |       |      |       |
| Phaholyothin Road,   |                |      |       |      |       |
| Samsennai,           |                |      |       |      |       |
| Phayathai, Bangkok   |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Joint Venture        | Business       | Re   | Par   | Pai  | perce |
|                      |                | gist | Value | d-up | ntage |
|                      |                | ered |       | Cap  | of    |
|                      |                | Cap  | (Baht | ital | Inves |
|                      |                | ital | per   |      | tment |
|                      |                |      | s     | (Mil |       |
|                      |                | (Mil | hare) | lion |       |
|                      |                | lion |       | B    |       |
|                      |                | Sh   |       | aht) |       |
|                      |                | are) |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Clearing House for   | Jointly        | 0.02 | 100   | 2    | 20.00 |
| Number Portability   | invested,      |      |       |      |       |
| Company Limited      | Operate the    |      |       |      |       |
| (CLH)                | Information    |      |       |      |       |
|                      | System and the |      |       |      |       |
| 10/97 6^(th) Floor,  | centralized    |      |       |      |       |
| The Trendy Project,  | database for   |      |       |      |       |
|                      | the mobile     |      |       |      |       |
| Soi Sukhumvit 13     | portability    |      |       |      |       |
| (Sangchan),          | service        |      |       |      |       |
| Klongtoey nua,       |                |      |       |      |       |
| Wattana, Bangkok     |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (66) 2646 2523 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (66) 2168 7744 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+
| Bridge Mobile Pte.   | Jointly        | 23   | USD 1 | USD  | 10.00 |
| Ltd. (BMB)           | invested,      |      |       | 23   |       |
|                      | provide        |      |       | Mil  |       |
| 750 Chai Chee Road,  | international  |      |       | lion |       |
| #03-02/03,           | roaming        |      |       |      |       |
|                      | service        |      |       |      |       |
| Technopark @ Chai    | (incorporated  |      |       |      |       |
| Chee,                | in Singapore)  |      |       |      |       |
|                      |                |      |       |      |       |
| Singapore 469000     |                |      |       |      |       |
|                      |                |      |       |      |       |
| Tel : (65) 6424 6270 |                |      |       |      |       |
|                      |                |      |       |      |       |
| Fax : (65) 6745 9453 |                |      |       |      |       |
+----------------------+----------------+------+-------+------+-------+

^(1/) The remaining 49% shareholding is non-related person

^(2/) On 7 February 2013, BOD’s resolutions of Advanced Info Service
Plc. approved the dissolution of two subsidiaries; Mobile Broadband
Business Co., Ltd. and Advanced Mobile Broadband Co., Ltd. The
dissolution currently is under the legal and liquidation process.

1.3 References

+------------------------------+---------------------------------------+
| Ordinary Share Registrar     | Thailand Securities Depository        |
|                              | Company Limited                       |
|                              |                                       |
|                              | The Stock Exchange Thailand Building, |
|                              |                                       |
|                              | 62, Ratchadapisek Road,               |
|                              |                                       |
|                              | Klongtoey, Klongtoey, Bangkok 10110   |
|                              |                                       |
|                              | Tel : (66) 2229 2800                  |
|                              |                                       |
|                              | Fax : (66) 2359 1259                  |
|                              |                                       |
|                              | Call Center : (66) 2229 2888          |
+------------------------------+---------------------------------------+
| Auditor                      | Mr. Winid Silamongkol                 |
|                              |                                       |
|                              | Certified Public Accountant           |
|                              | Registration Number 3378              |
|                              |                                       |
|                              | KPMG Phoomchai Audit Limited          |
|                              |                                       |
|                              | 195, Empire Tower 48^(th) - 51^(st)   |
|                              | Floor,                                |
|                              |                                       |
|                              | South Sathorn Road, Sathorn, Bangkok  |
|                              | 10120                                 |
|                              |                                       |
|                              | Tel : (66) 2677 2000                  |
|                              |                                       |
|                              | Fax : (66) 2677 2222                  |
+------------------------------+---------------------------------------+
| Debenture Registrar          | TMB Bank Public Company Limited       |
|                              |                                       |
|                              | 3000 Phahon Yothin Road, Chatuchak,   |
|                              |                                       |
|                              | Bangkok 10900                         |
|                              |                                       |
|                              | Tel. (66) 2299 1111, (66) 2617 9111   |
+------------------------------+---------------------------------------+