Attachment 3 (1) Summary of Concession Agreement

1. Advanced Info Service Public Company Limited (AIS)

Reference to the Concession Agreement with TOT Corporation Public
Company Limited (TOT) dated 27 March 1990 as well as 7 Amendment: the
1^(st) amendment on 11 December 1991, the 2^(nd) amendment on 16 April
1993, the 3^(rd) amendment on 28 November 1994, the 4^(th) amendment on
20 September 1996, the 5^(th) amendment on 25 December 2000(regarding
transmission system exploitation), the 6^(th) amendment on 15 May
2001(regarding Prepaid card effecting 1 June 2001) and the 7^(th)
amendment on 20 September 2002. The significant of agreement are as the
following:

+---------+---+-----------------+-----------------+--------------------+
| Ag      |   | : Cellular      |                 |                    |
| reement |   | Mobile          |                 |                    |
|         |   | Telephone       |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Parties |   | : The Telephone |                 |                    |
|         |   | Organization of |                 |                    |
|         |   | Thailand (TOT)  |                 |                    |
|         |   |                 |                 |                    |
|         |   | Advanced Info   |                 |                    |
|         |   | Service Public  |                 |                    |
|         |   | Company Limited |                 |                    |
|         |   | “AIS”           |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Date of |   | : 27 March 1990 |                 |                    |
| Ag      |   |                 |                 |                    |
| reement |   |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Period  |   | : 25 years (1   |                 |                    |
| of      |   | October 1990 -  |                 |                    |
| Ag      |   | 30 September    |                 |                    |
| reement |   | 2015)           |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Service |   | : AIS has been  |                 |                    |
| under   |   | granted from    |                 |                    |
| the     |   | TOT under       |                 |                    |
| Con     |   | Build-T         |                 |                    |
| cession |   | ransfer-Operate |                 |                    |
|         |   | contract to     |                 |                    |
|         |   | operate and     |                 |                    |
|         |   | service of      |                 |                    |
|         |   | Cellular Mobile |                 |                    |
|         |   | Telephone       |                 |                    |
|         |   | either analog   |                 |                    |
|         |   | (NMT) or        |                 |                    |
|         |   | Digital GSM,    |                 |                    |
|         |   | 900 MHz         |                 |                    |
|         |   | frequency       |                 |                    |
|         |   | (hereinafter    |                 |                    |
|         |   | called          |                 |                    |
|         |   | “Cellular 900   |                 |                    |
|         |   | System”)        |                 |                    |
|         |   | nationwide,     |                 |                    |
|         |   | parallel        |                 |                    |
|         |   | operation for   |                 |                    |
|         |   | 25 years since  |                 |                    |
|         |   | 1 October 1990, |                 |                    |
|         |   | being the first |                 |                    |
|         |   | day of service  |                 |                    |
|         |   | AIS has been    |                 |                    |
|         |   | granted to be   |                 |                    |
|         |   | joint           |                 |                    |
|         |   | exploitation of |                 |                    |
|         |   | the             |                 |                    |
|         |   | transmission    |                 |                    |
|         |   | system and      |                 |                    |
|         |   | residual asset  |                 |                    |
|         |   | out of the      |                 |                    |
|         |   | normal          |                 |                    |
|         |   | operation. The  |                 |                    |
|         |   | service shall   |                 |                    |
|         |   | be rent to TOT’ |                 |                    |
|         |   | subscriber and  |                 |                    |
|         |   | AIS’ subscriber |                 |                    |
|         |   | at the rate     |                 |                    |
|         |   | equaling to TOT |                 |                    |
|         |   | rate.           |                 |                    |
|         |   |                 |                 |                    |
|         |   | AIS have to     |                 |                    |
|         |   | collect the     |                 |                    |
|         |   | service fee and |                 |                    |
|         |   | pay revenue     |                 |                    |
|         |   | sharing to TOT  |                 |                    |
|         |   | according to    |                 |                    |
|         |   | the 5^(th)      |                 |                    |
|         |   | amendment,      |                 |                    |
|         |   | provided that   |                 |                    |
|         |   | AIS shall not   |                 |                    |
|         |   | do the          |                 |                    |
|         |   | marketing       |                 |                    |
|         |   | competing with  |                 |                    |
|         |   | TOT but do the  |                 |                    |
|         |   | joint marketing |                 |                    |
|         |   | and promotion   |                 |                    |
|         |   | with TOT. AIS   |                 |                    |
|         |   | has been        |                 |                    |
|         |   | granted from    |                 |                    |
|         |   | TOT to mobile   |                 |                    |
|         |   | phone - Prepaid |                 |                    |
|         |   | card service    |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Op      |   | : AIS agrees to |                 |                    |
| eration |   | operate as      |                 |                    |
| and     |   | follows:        |                 |                    |
| P       |   |                 |                 |                    |
| lanning |   | 1) invest in    |                 |                    |
|         |   | premise, tool,  |                 |                    |
|         |   | all of          |                 |                    |
|         |   | equipment of    |                 |                    |
|         |   | Cellular 900    |                 |                    |
|         |   | (switching,     |                 |                    |
|         |   | base station    |                 |                    |
|         |   | and             |                 |                    |
|         |   | transmission)   |                 |                    |
|         |   |                 |                 |                    |
|         |   | 2) invest in    |                 |                    |
|         |   | spare parts as  |                 |                    |
|         |   | well as         |                 |                    |
|         |   | necessary       |                 |                    |
|         |   | equipment in    |                 |                    |
|         |   | Operation       |                 |                    |
|         |   |                 |                 |                    |
|         |   | 3) take         |                 |                    |
|         |   | responsibility  |                 |                    |
|         |   | in maintenance  |                 |                    |
|         |   | & repair of     |                 |                    |
|         |   | tool,           |                 |                    |
|         |   | Equipment,      |                 |                    |
|         |   | asset and       |                 |                    |
|         |   | network which   |                 |                    |
|         |   | AIS has         |                 |                    |
|         |   | procured during |                 |                    |
|         |   | the period in   |                 |                    |
|         |   | agreement in    |                 |                    |
|         |   | order to        |                 |                    |
|         |   | maximized       |                 |                    |
|         |   | benefits to     |                 |                    |
|         |   | subscriber.     |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Fr      |   | : TOT has to    |                 |                    |
| equency |   | provide the     |                 |                    |
| all     |   | frequency       |                 |                    |
| ocation |   | 897.5 - 915 MHz |                 |                    |
|         |   | and 942.5 – 960 |                 |                    |
|         |   | MHz to AIS to   |                 |                    |
|         |   | use in Cellular |                 |                    |
|         |   | 900.            |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Asset   |   | : When the      |                 |                    |
| T       |   | installation    |                 |                    |
| ransfer |   | has been        |                 |                    |
|         |   | completed, AIS  |                 |                    |
|         |   | shall transfer  |                 |                    |
|         |   | asset, spare    |                 |                    |
|         |   | parts, tools    |                 |                    |
|         |   | and equipment   |                 |                    |
|         |   | to TOT’s        |                 |                    |
|         |   | ownership. TOT  |                 |                    |
|         |   | has consent AIS |                 |                    |
|         |   | to possess and  |                 |                    |
|         |   | exploit the     |                 |                    |
|         |   | mentioned asset |                 |                    |
|         |   | for all of the  |                 |                    |
|         |   | term of         |                 |                    |
|         |   | Concession      |                 |                    |
|         |   | Agreement and   |                 |                    |
|         |   | subject to the  |                 |                    |
|         |   | then agreement. |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| In      |   | : AIS shall     |                 |                    |
| surance |   | have the asset  |                 |                    |
|         |   | insured against |                 |                    |
|         |   | all risk policy |                 |                    |
|         |   | in full value   |                 |                    |
|         |   | of asset during |                 |                    |
|         |   | the term period |                 |                    |
|         |   | of the          |                 |                    |
|         |   | Concession      |                 |                    |
|         |   | Agreement. In   |                 |                    |
|         |   | the event that  |                 |                    |
|         |   | the insurance   |                 |                    |
|         |   | policy shall    |                 |                    |
|         |   | expire prior to |                 |                    |
|         |   | the ending date |                 |                    |
|         |   | of the          |                 |                    |
|         |   | Agreement, AIS  |                 |                    |
|         |   | shall have it   |                 |                    |
|         |   | renewed, and    |                 |                    |
|         |   | submit to TOT   |                 |                    |
|         |   | within 30 days  |                 |                    |
|         |   | of the insured  |                 |                    |
|         |   | date.           |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| B       |   | : AIS agree to  |                 |                    |
| enefits |   | pay to TOT at   |                 |                    |
|         |   | the percent of  |                 |                    |
|         |   | revenue prior   |                 |                    |
|         |   | to withholding  |                 |                    |
|         |   | the expenses    |                 |                    |
|         |   | and tax. The    |                 |                    |
|         |   | revenue shall   |                 |                    |
|         |   | not below to    |                 |                    |
|         |   | the stipulate   |                 |                    |
|         |   | rate during the |                 |                    |
|         |   | term period 25  |                 |                    |
|         |   | year. The table |                 |                    |
|         |   | is showing the  |                 |                    |
|         |   | revenue:        |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
|         |   |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| Year    | P |                 | Minimum         | Term revenue       |
|         | e |                 | revenue(Baht)   |                    |
|         | r |                 |                 |                    |
|         | c |                 |                 |                    |
|         | e |                 |                 |                    |
|         | n |                 |                 |                    |
|         | t |                 |                 |                    |
|         | o |                 |                 |                    |
|         | f |                 |                 |                    |
|         | r |                 |                 |                    |
|         | e |                 |                 |                    |
|         | v |                 |                 |                    |
|         | e |                 |                 |                    |
|         | n |                 |                 |                    |
|         | u |                 |                 |                    |
|         | e |                 |                 |                    |
|         | b |                 |                 |                    |
|         | e |                 |                 |                    |
|         | f |                 |                 |                    |
|         | o |                 |                 |                    |
|         | r |                 |                 |                    |
|         | e |                 |                 |                    |
|         | d |                 |                 |                    |
|         | e |                 |                 |                    |
|         | d |                 |                 |                    |
|         | u |                 |                 |                    |
|         | c |                 |                 |                    |
|         | t |                 |                 |                    |
|         | e |                 |                 |                    |
|         | x |                 |                 |                    |
|         | p |                 |                 |                    |
|         | e |                 |                 |                    |
|         | n |                 |                 |                    |
|         | s |                 |                 |                    |
|         | e |                 |                 |                    |
|         | & |                 |                 |                    |
|         | t |                 |                 |                    |
|         | a |                 |                 |                    |
|         | x |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 1       | 1 |                 | 12,960,000      | Oct 90 – Sep 91    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 2       | 1 |                 | 34,560,000      | Oct 91 - Sep 92    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 3       | 1 |                 | 60,480,000      | Oct 92 - Sep 93    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 4       | 1 |                 | 103,680,000     | Oct 93 - Sep 94    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 5       | 1 |                 | 146,880,000     | Oct 94 - Sep 95    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 6       | 2 |                 | 253,440,000     | Oct 95 - Sep 96    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 7       | 2 |                 | 311,040,000     | Oct 96 - Sep 97    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 8       | 2 |                 | 368,640,000     | Oct 97 - Sep 98    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 9       | 2 |                 | 426,240,000     | Oct 98 - Sep 99    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 10      | 2 |                 | 483,840,000     | Oct 99 - Sep 00    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 11      | 2 |                 | 676,800,000     | Oct 00 - Sep 01    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 12      | 2 |                 | 748,800,000     | Oct 01 - Sep 02    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 13      | 2 |                 | 820,800,000     | Oct 02 - Sep 03    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 14      | 2 |                 | 892,800,000     | Oct 03 - Sep 04    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 15      | 2 |                 | 964,800,000     | Oct 04 - Sep 05    |
|         | 5 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 16      | 3 |                 | 1,235,520,000   | Oct 05 - Sep 06    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 17      | 3 |                 | 1,304,640,000   | Oct 06 - Sep 07    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 18      | 3 |                 | 1,365,120,000   | Oct 07 - Sep 08    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 19      | 3 |                 | 1,416,960,000   | Oct 08 - Sep 09    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 20      | 3 |                 | 1,460,160,000   | Oct 09 - Sep 10    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 21      | 3 |                 | 1,460,160,000   | Oct 10 - Sep 11    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 22      | 3 |                 | 1,460,160,000   | Oct 11 - Sep 12    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 23      | 3 |                 | 1,460,160,000   | Oct 12 - Sep 13    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 24      | 3 |                 | 1,460,160,000   | Oct 13 - Sep 14    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+
| 25      | 3 |                 | 1,460,160,000   | Oct 14 - Sep 15    |
|         | 0 |                 |                 |                    |
+---------+---+-----------------+-----------------+--------------------+

  -------------- ----------------------------------------------------------
  Benefits of    : AIS shall collect the service charge from subscriber and
  Transmission   quarterly share to TOT at 25 % or 20 % of the service
  exploitation   charge before VAT for the TOT’ subscriber and AIS’
                 subscriber respectively.

  Benefits of    : AIS agree to share to TOT at 20% of face value of sold
  Prepaid Card   card and revenue from first activate card (if any). AIS
                 have to monthly finish the card sale report and remit
                 revenue sharing within 15 days of the succeeding month.

  Termination    : TOT may terminate and assign the rights under this
                 agreement to the third party. AIS shall also liable all
                 damage to TOT. In the event that TOT is not confident in
                 AIS operation to achieve the target or breach any term of
                 the agreement, all asset ownership shall belong to TOT
                 suddenly. AIS may terminate the agreement by the reason of
                 force major that make AIS cannot undertake upon the
                 agreement.
  -------------- ----------------------------------------------------------

Memorandum for concession agreement for operating cellular mobile
telephone service at 27 March 1990 (No.1^(st))

+------------+---+------------------------------------------------------+
| Contractor | : | The Telephone Organization of Thailand (TOT)         |
|            |   |                                                      |
|            |   | Advanced Info Service Company Limited                |
+------------+---+------------------------------------------------------+
| Contract   | : | 11 December 1991                                     |
| Date       |   |                                                      |
+------------+---+------------------------------------------------------+
| Additional | : | In an event that AIS must lease area for             |
| Clause     |   | installation of tools and equipments from others,    |
|            |   | AIS must lease in TOT’s name. Each lease period      |
|            |   | shall be not less than 3 years and renew until it    |
|            |   | reaches 22 years. AIS shall be fully responsible for |
|            |   | any damage and damages caused by moving to another   |
|            |   | leased area.                                         |
+------------+---+------------------------------------------------------+

Memorandum for concession agreement for operating cellular mobile
telephone service at 27 March 1990 (No.2^(nd))

+------------+---+------------------------------------------------------+
| Contractor | : | The Telephone Organization of Thailand (TOT)         |
|            |   |                                                      |
|            |   | Advanced Info Service Company Limited                |
+------------+---+------------------------------------------------------+
| Contract   | : | 16 April 1993                                        |
| Date       |   |                                                      |
+------------+---+------------------------------------------------------+
| Additional | : | From Advanced Info Service Company Limited           |
| Clause     |   |                                                      |
|            |   | to Advanced Info Service Public Company Limited      |
+------------+---+------------------------------------------------------+

Memorandum for concession agreement for operating cellular mobile
telephone service at 27 March 1990 (No.3^(rd))

+------------+---+------------------------------------------------------+
| Contractor | : | The Telephone Organization of Thailand (TOT)         |
|            |   |                                                      |
|            |   | Advanced Info Service Company Limited                |
+------------+---+------------------------------------------------------+
| Contract   | : | 28 November 1994                                     |
| Date       |   |                                                      |
+------------+---+------------------------------------------------------+
| Additional | : | 1. TOT agrees to share revenue with AIS only for the |
| Clauses    |   | International Direct Dialing Service (IDD) from AIS  |
|            |   | Subscribers as follows:                              |
|            |   |                                                      |
|            |   | 1.1 IDD to unconnected-border countries: TOT shares  |
|            |   | its monthly revenue to AIS for THB3 per minute; and  |
|            |   |                                                      |
|            |   | 1.2 IDD to connected-border countries: TOT shares    |
|            |   | its monthly revenue to AIS for THB3 per minute. AIS  |
|            |   | is required to issue an invoice to and collect       |
|            |   | payment from its subscribers on behalf of TOT.       |
|            |   |                                                      |
|            |   | 2. The above revenues must be included and           |
|            |   | calculated as per annum revenue to be paid to TOT .  |
|            |   |                                                      |
|            |   | 3. AIS agrees to waive its revenue during 1 October  |
|            |   | 1990-30 September 1994, which was collected and paid |
|            |   | to TOT, to be included and calculated as per annum   |
|            |   | revenue to be paid to TOT.                           |
+------------+---+------------------------------------------------------+

Memorandum for concession agreement for operating cellular mobile
telephone service at 27 March 1990 (No.4^(th))

+------------+---+------------------------------------------------------+
| Contractor | : | The Telephone Organization of Thailand (TOT)         |
|            |   |                                                      |
|            |   | Advanced Info Service Company Limited                |
+------------+---+------------------------------------------------------+
| Contract   | : | 20 September 1996                                    |
| Date       |   |                                                      |
+------------+---+------------------------------------------------------+
| Additional | : | 1. Extend the Contract Period from 20 years to 25    |
| Clauses    |   | years from first operation date.                     |
|            |   |                                                      |
|            |   | 2. AIS has the right to build transmission networks  |
|            |   | in all conductors to interconnect with TOT’s         |
|            |   | networks and other networks. The newly built         |
|            |   | transmission networks must be transferred to TOT but |
|            |   | AIS is entitled to maintain and manage those         |
|            |   | networks.                                            |
|            |   |                                                      |
|            |   | 3. AIS has the right to use, possess and maintain    |
|            |   | transmission networks and other assets acquired by   |
|            |   | AIS free of charge.                                  |
|            |   |                                                      |
|            |   | 4. TOT has the right to exploit the unused           |
|            |   | transmission networks under AIS management.          |
|            |   |                                                      |
|            |   | 5. In cases where others or TOT use special services |
|            |   | via such networks, AIS is entitled to exploitation   |
|            |   | as agreed with TOT.                                  |
|            |   |                                                      |
|            |   | 6. AIS no longer has exclusive right to provide      |
|            |   | mobile cellular services.                            |
|            |   |                                                      |
|            |   | 7. AIS can provide IDD service directly through      |
|            |   | CAT’s networks on the condition that TOT shall not   |
|            |   | gain less per annum revenue.                         |
|            |   |                                                      |
|            |   | 8. Cancelled section 4.3 in the memorandum No.3^(rd) |
|            |   | and that TOT shall share its revenue earned from     |
|            |   | international call at the rate of 3 Baht/minute to   |
|            |   | AIS                                                  |
|            |   |                                                      |
|            |   | 9. AIS shall pay 30 percent of per annum revenue to  |
|            |   | TOT for the year 25-30 before expenses and taxes     |
|            |   | deduction. AIS is entitled to reduce or waive        |
|            |   | service fee according to its promotions.             |
|            |   |                                                      |
|            |   | 10. Any changes or updates of networks’ technology   |
|            |   | shall be done by AIS at its own expense. TOT shall   |
|            |   | own any changes or updates of such networks          |
|            |   | including any related assets.                        |
+------------+---+------------------------------------------------------+

  Memorandum for concession agreement for operating cellular mobile
  telephone service at 27 March 1990 (No.5^(th))

+------------+---+-----------------------------------------------------+
| Contractor | : | The Telephone Organization of Thailand (TOT)        |
|            |   |                                                     |
|            |   | Advanced Info Service Company Limited               |
+------------+---+-----------------------------------------------------+
| Contract   | : | 25 December 2000                                    |
| Date       |   |                                                     |
+------------+---+-----------------------------------------------------+
| Additional | : | 1. AIS is exploitation co-management.               |
| Clauses    |   |                                                     |
|            |   | 2. AIS collects service fee from subscribers and    |
|            |   | deliver to TOT.                                     |
|            |   |                                                     |
|            |   | 3. Revenue Ratio between TOT and AIS are as         |
|            |   | follows:                                            |
|            |   |                                                     |
|            |   | 3.1 TOT’s subscribers: AIS acquires 75 percent and  |
|            |   | TOT acquires 25 percent; and                        |
|            |   |                                                     |
|            |   | 3.2 AIS’s subscribers: AIS acquires 78 percent and  |
|            |   | TOT acquires 22 percent.                            |
|            |   |                                                     |
|            |   | 4. AIS must coordinate with TOT on marketing        |
|            |   | project and must not carry out any marketing plans  |
|            |   | which will take hold of TOT’s subscribers.          |
|            |   |                                                     |
|            |   | 5. AIS must produce and execute signal conductor    |
|            |   | lease agreement with all subscribers and monthly    |
|            |   | report to TOT for inspection.                       |
+------------+---+-----------------------------------------------------+

  Memorandum for concession agreement for operating cellular mobile
  telephone service at 27 March 1990 (No.6^(th))

+------------+---+-----------------------------------------------------+
| Contractor | : | The Telephone Organization of Thailand (TOT)        |
|            |   |                                                     |
|            |   | Advanced Info Service Company Limited               |
+------------+---+-----------------------------------------------------+
| Contract   | : | 15 May 2001                                         |
| Date       |   |                                                     |
+------------+---+-----------------------------------------------------+
| Additional | : | Pre-Paid cellular mobile service                    |
| Clause     |   |                                                     |
|            |   | 1. AIS agrees to pay 20 percent of value on scratch |
|            |   | cards sold monthly (VAT included) to TOT by the     |
|            |   | date 15 next month.                                 |
|            |   |                                                     |
|            |   | 2. During year 11-15 under the main concession      |
|            |   | agreement, AIS must reduce the service fee, to be   |
|            |   | collected from its subscribers in year 11, to its   |
|            |   | subscribers not less than 5 percent in average      |
|            |   | annually. During year 16-25 under the main          |
|            |   | concession agreement, AIS must reduce the service   |
|            |   | fee, to be collected from its subscribers in year   |
|            |   | 11, to its subscribers not less than 10 percent in  |
|            |   | average annually.                                   |
+------------+---+-----------------------------------------------------+

  Memorandum to amend the Concession Agreement (Cellular Mobile
  Telephone) date 27 March 1990 (no.7^(th))

  AIS and TOT has signed the Amendment to the Concession Agreement
  (Cellular Mobile Telephone) no.7 on 20 September 2002. The details are
  as the following:

  Agreement : Memorandum to amend the Concession Agreement, Cellular
  Mobile

  Telephone, dated 27 March 1990 no.7

  Parties : TOT Corporation Public Company Limited “TOT”

  Advanced Info Service Public Company Limited “AIS”

  Date of Agreement : 20 September 2002

  Detail of Roaming : TOT and AIS agree in principle regarding Roaming
  method as follows:

1.  TOT and AIS agree that this Memorandum being the part of Cellular
    Mobile Telephone

2.  TOT allows AIS to use network under the Cellular Mobile Telephone
    and allow the third party use network roaming in the contrary AIS
    being allowed in using roaming network.

3.  Upon Roaming network pursuant to clause 2., AIS may charge roaming
    network at the rate not more than Baht 3 per minute (nationwide).
    AIS shall not pay the roaming network more than Baht 3 per minute
    (nationwide). AIS shall inform TOT in writing before allowing the
    third party to use roaming network and before AIS use other roaming
    network.

4.  AIS agree to pay the revenue sharing as follows:

  - Other operator use our network, AIS shall pay to TOT (as in the
  Cellular Mobile Telephone) of the revenue of roaming network collected
  from other operator.

  - AIS use other network, AIS shall pay to TOT (as in the Cellular
  Mobile Telephone) of the revenue of roaming network and others
  collected from subscriber deducting with the roaming network paid to
  other operator.

  National Roaming

  Agreement : Memorandum of Understanding to use network (National
  Roaming)

  Parties : Advanced Info Service Public Company Limited “AIS”

  Digital Phone Company Limited “DPC”

  Date of Agreement : 1 November 2002

  Detail of Roaming : The parties agree to joint use of each network as
  follows:

  1. To increase the efficiency of network to 2 operator subscriber
  since 1 October 2002. AIS allows DPC to use network nationwide and
  since 1 November 2002, DOC allows AIS to use network nationwide. Each
  party may request to reduce area coverage in using network by prior
  notification to the other party 90 days.

  The requested party may terminate the roaming, if the reduction
  causing the uncomfortable of subscriber.

  2. Each party shall pay national roaming incurred from network Using
  of the other party at the rate of 2.10 Baht (exclusive VAT)

  Roaming payment : Each month an amount of roaming payment in invoice
  shall be set off the other roaming payment and pay the different
  amount by the party who use less than the other party. The payment
  shall be in Thai Baht within 15 days after the last invoice date of
  the operator in that month.

  Termination : Each party may terminate a MOU by 6 month prior written
  notification to the other party.

Internet License Type 1 No NTC/MM/INT/ISP/I/025/2550

+-------------+---+-----------------------------------------------------+
| Grantor     | : | The National Telecommunications Commission (“NTC”)  |
+-------------+---+-----------------------------------------------------+
| Grant       | : | 23 November 2007 – 22 November 2008                 |
| Period      |   |                                                     |
|             |   | (License is subjected to renewal every year)        |
+-------------+---+-----------------------------------------------------+
| License     | : | AIS provides internet services to its customers     |
| Details     |   | without having its own telecommunication network.   |
|             |   | ADC is obligated to pay for the license fee within  |
|             |   | the time period as per specified by the NTC.        |
+-------------+---+-----------------------------------------------------+
| Withdrawal  | : | NTC has sole power to withdraw the license if       |
| of License  |   | appears that AIS breaches or does not comply with   |
|             |   | the Telecommunication Business Act B.E. 2544        |
|             |   | (2001), Rules or Regulations issued by the NTC, or  |
|             |   | fails to remedy within the specified period.        |
+-------------+---+-----------------------------------------------------+

2. Advanced DataNetwork Communications Company Limited (ADC)

ADC has been granted from TOT to operate data communication system
(Datakit Virtual Circuit Switch) according to the Data Communication
Service Agreement by Datakit Virtual Circuit Switch System dated 19
September 1989 and 2 amendments dated 19 September 1997 and 25 September
1997. The details are as follows:

+-------------+--------------------------------------------------------+
| Agreement   | : Data Communication Service Agreement (Datakit        |
|             | Virtual Circuit Switch)                                |
+-------------+--------------------------------------------------------+
| Parties     | : TOT Corporation Public Company Limited “TOT”         |
|             |                                                        |
|             | Advanced Data Network Company Limited “ADC”            |
+-------------+--------------------------------------------------------+
| Date of     | : 19 September 1989                                    |
| Agreement   |                                                        |
+-------------+--------------------------------------------------------+
| Period of   | : 25 years (25 September 1997 – 24 September 2022)     |
| Agreement   |                                                        |
+-------------+--------------------------------------------------------+
| Service     | : ADC has been granted to operate data communication   |
| under the   | service which system is Frame Relay and Datakit        |
| Agreement   | Virtual Circuit Switch and/or other data communication |
|             | system whether point to point or point to multipoint   |
|             | in circuit allocation to connect between the           |
|             | subscriber network and all subscribers in country.     |
|             | This is to receive and transmit any kind of data for   |
|             | high technology of data communication service to       |
|             | develop service to comply the market requirement,      |
|             | changing technology.                                   |
+-------------+--------------------------------------------------------+
| Operation   | : ADC agrees to invest in equipment of Datakit system  |
| and         | according to estimated investment, installation plan   |
| Planning    | and Product information of Datakit to achieve the      |
|             | schedule.                                              |
+-------------+--------------------------------------------------------+
| Ownership   | : All tool and equipment or asset which procured or    |
| Rights      | provided for Datakit system by ADC, shall belong to    |
|             | TOT ownership after installation completion. TOT       |
|             | allows ADC to occupy the equipment for the purpose of  |
|             | providing the service during the term of the           |
|             | Agreement.                                             |
+-------------+--------------------------------------------------------+
| Insurance   | : ADC shall have the asset insured against all risk    |
|             | policy in full value of asset during the term period   |
|             | of the Agreement. In the event that the insurance      |
|             | policy shall expire prior to the ending date of the    |
|             | Agreement, AIS shall have it renewed, and submit to    |
|             | TOT within 30 days of the insured date.                |
+-------------+--------------------------------------------------------+
| Benefit     | : ADC shall register capital increase from 350 Million |
|             | Baht to 457.52 Million Baht by issuing share to        |
|             | increase capital of 107.52 Million Baht which is 23.5  |
|             | % of registered capital to TOT without payment of      |
|             | shares.                                                |
+-------------+--------------------------------------------------------+
| Termination | : TOT may terminate and assign the rights under the    |
|             | agreement to the third party to continue the operation |
|             | if there is any reason to be deemed the incapability   |
|             | of ADC to run the business or breaching any term of    |
|             | the Agreement by ADC. All assets shall belong to TOT.  |
|             | ADC shall be liable in damage to TOT.                  |
|             |                                                        |
|             |   ADC may terminate the agreement in case of force     |
|             |   majeure which is the cause to ADC not to comply the  |
|             |   agreement.                                           |
+-------------+--------------------------------------------------------+

  Internet License Type 1 No NTC/MN/INT/ISP/I/022/2548

+--------------+---+----------------------------------------------------+
| Grantor      | : | The National Telecommunications Commission (“NTC”) |
+--------------+---+----------------------------------------------------+
| Grant Period | : | 19 December 2005-18 December 2006                  |
|              |   |                                                    |
|              |   | (License is subjected to renewal every year)       |
+--------------+---+----------------------------------------------------+
| License      | : | ADC provides internet services to its customers    |
| Details      |   | without having its own telecommunication network.  |
|              |   | ADC is obligated to pay for the license fee within |
|              |   | the time period as per specified by the NTC.       |
+--------------+---+----------------------------------------------------+
| Withdrawal   | : | NTC has sole power to withdraw the license if      |
| of License   |   | appears that ADC violates or does not comply with  |
|              |   | the Telecommunication Business Act B.E. 2544       |
|              |   | (2001), Rules or Regulations issued by the NTC, or |
|              |   | fails to amend or comply within the specified      |
|              |   | period.                                            |
+--------------+---+----------------------------------------------------+

  Internet International Gateway License Type 2 No. NTC/INT/II/002/2549

  -------------- --- ----------------------------------------------------
  Grantor        :   The National Telecommunications Commission (“NTC”)

  Grant Period   :   8 December 2006 - 7 December 2011

  License        :   ADC provides internet international gateway
  Details            services, interconnection center between domestic
                     internet network to international internet network,
                     internet exchange to its particular customers with
                     having its own telecommunication network. ADC is
                     obligated to pay for the license fee within the
                     period as specified by the NTC.

  Withdrawal of  :   NTC has sole power to withdraw the license if
  License            appears that ADC violates or does not comply with
                     the Telecommunication Business Act B.E. 2544 (2001),
                     Rules or Regulations issued by the NTC, or fails to
                     remedy within the specified period.
  -------------- --- ----------------------------------------------------

3. Digital Phone Company Limited (DPC)

DPC has been granted from CAT, assigned from Total Access Communication
Public Company Limited (TAC), to operate Mobile Phone: Digital GSM 1800.
The details are as follows:

(3.1) Concession Agreement between DPC & CAT

  According to the Concession Agreement signed between DPC and CAT dated
  19 November 1996 and the amendment on 26 August 1999 (effecting on 30
  June1999). The significant of agreement are as follows:

+-------------+--------------------------------------------------------+
| Agreement   | : Cellular Mobile Telephone: Digital PCN (Personal     |
|             | Communication Network) 1800                            |
+-------------+--------------------------------------------------------+
| Parties     | : CAT Telecommunication Public Company Limited “CAT”   |
|             |                                                        |
|             | Digital Phone Company Limited “DPC”                    |
+-------------+--------------------------------------------------------+
| Date of     | : 19 November 1996                                     |
| Agreement   |                                                        |
+-------------+--------------------------------------------------------+
| Period of   | : 28 May 1997 – 15 September 2013                      |
| Agreement   |                                                        |
+-------------+--------------------------------------------------------+
| Service     | : DPC has been granted to operate Cellular Mobile      |
| under the   | Telephone Service: Digital PCN 1800, nationwide,       |
| Agreement   | hereinafter collectively called “PCN 1800 system”      |
|             | which has been assigned rights and duty from TAC       |
|             | according to Assignment                                |
|             |                                                        |
|             | agreement to Cellular Mobile Telephone between TAC and |
|             | CAT. DPC has been granted to operate since 28 May 1997 |
|             | to 15 September 2013                                   |
+-------------+--------------------------------------------------------+
| Operation   | : DPC agrees to undertake as follows:                  |
| and         |                                                        |
| Planning    | - invest in premise, tool, and equipment of PCN 1800   |
|             | system composing of Switching, Billing system, Base    |
|             | Transceiver station and Transmission                   |
|             |                                                        |
|             | - invest in spare parts including tool, necessary      |
|             | equipment                                              |
|             |                                                        |
|             | - liable in repair and maintenance tool, equipment,    |
|             | asset and DPC network during the term period of the    |
|             | agreement.                                             |
+-------------+--------------------------------------------------------+
| Frequency   | : CAT have to provide frequency 1747.9 – 1760.5 MHz    |
| Allocation  | and 1842.9 – 1855.5 MHz in area in country to DPC to   |
|             | service PCN 1800                                       |
+-------------+--------------------------------------------------------+
| Asset       | : When the installation has been completed, DPC shall  |
| Transfer    | transfer asset, tools and equipment to CAT’s           |
|             | ownership. CAT has consent DPC to possess and exploit  |
|             | the mentioned asset for all of the term of Agreement   |
|             | and subject to the then agreement.                     |
+-------------+--------------------------------------------------------+
| Insurance   | : DPC shall have the asset insured against all risk    |
|             | policy in full value of asset during the term period   |
|             | of the Agreement. In the event that the insurance      |
|             | policy shall expire prior to the ending date of the    |
|             | Agreement, DPC shall have it renewed, and submit to    |
|             | CAT within 30 days of the insured date                 |
+-------------+--------------------------------------------------------+
| Benefits    | : DPC agree to pay revenue sharing to CAT at rate of   |
|             | revenue before deducting expense, tax and other fee    |
|             | which incurred from operation. Although the mentioned  |
|             | benefits shall not less than the minimum revenue as    |
|             | stipulated in the agreement. The table is showing the  |
|             | benefits as below:                                     |
+-------------+--------------------------------------------------------+

+-------+------------------+--------------------+---------------------+
| Year  | % of benefit     | Minimum Revenue    | Period installment  |
|       | before deducting |                    |                     |
|       | expense & tax    | (Baht)             |                     |
+-------+------------------+--------------------+---------------------+
| 1     | 25               | 9,000,000          | 16 Mar 98 -15 Sep   |
|       |                  |                    | 98                  |
+-------+------------------+--------------------+---------------------+
| 2     | 20               | 60,000,000         | 16 Sep 98 - 15 Sep  |
|       |                  |                    | 99                  |
+-------+------------------+--------------------+---------------------+
| 3     | 20               | 80,000,000         | 16 Sep 99 - 15 Sep  |
|       |                  |                    | 00                  |
+-------+------------------+--------------------+---------------------+
| 4     | 20               | 105,000,000        | 16 Sep 00 - 15 Sep  |
|       |                  |                    | 01                  |
+-------+------------------+--------------------+---------------------+
| 5     | 20               | 160,000,000        | 16 Sep 01 - 15 Sep  |
|       |                  |                    | 02                  |
+-------+------------------+--------------------+---------------------+
| 6     | 20               | 200,000,000        | 16 Sep 02 - 15 Sep  |
|       |                  |                    | 03                  |
+-------+------------------+--------------------+---------------------+
| 7     | 20               | 240,000,000        | 16 Sep 03 - 15 Sep  |
|       |                  |                    | 04                  |
+-------+------------------+--------------------+---------------------+
| 8     | 20               | 280,000,000        | 16 Sep 04 - 15 Sep  |
|       |                  |                    | 05                  |
+-------+------------------+--------------------+---------------------+
| 9     | 20               | 320,000,000        | 16 Sep 05 - 15 Sep  |
|       |                  |                    | 06                  |
+-------+------------------+--------------------+---------------------+
| 10    | 25               | 350,000,000        | 16 Sep 06 - 15 Sep  |
|       |                  |                    | 07                  |
+-------+------------------+--------------------+---------------------+
| 11    | 25               | 380,000,000        | 16 Sep 07 - 15 Sep  |
|       |                  |                    | 08                  |
+-------+------------------+--------------------+---------------------+
| 12    | 25               | 580,000,000        | 16 Sep 08 - 15 Sep  |
|       |                  |                    | 09                  |
+-------+------------------+--------------------+---------------------+
| 13    | 25               | 646,000,000        | 16 Sep 09 - 15 Sep  |
|       |                  |                    | 10                  |
+-------+------------------+--------------------+---------------------+
| 14    | 25               | 650,000,000        | 16 Sep 10 - 15 Sep  |
|       |                  |                    | 11                  |
+-------+------------------+--------------------+---------------------+
| 15    | 30               | 670,000,000        | 16 Sep 11 - 15 Sep  |
|       |                  |                    | 12                  |
+-------+------------------+--------------------+---------------------+
| 16    | 30               | 670,000,000        | 16 Sep 12 - 15 Sep  |
|       |                  |                    | 13                  |
+-------+------------------+--------------------+---------------------+
|       | Total            | 5,400,000,000      |                     |
+-------+------------------+--------------------+---------------------+

Termination : The agreement shall be terminated by:

-   The ending date of the agreement

-   CAT terminate the agreement due to the breach of DPC or any breach
    effecting CAT damage and DPC does not remedy within 90 days since
    the notification date from CAT

-   The parties agree to terminate

-   DPC is bankruptcy

-   If CAT terminate in case of missing qualification of DPC pursuant to
    Alien Business Law. CAT have to prior notify DPC 90 days

(3.2) Assignment Agreement between DPC & TAC

+-------------+--------------------------------------------------------+
| Agreement   | : Assignment Agreement according to Cellular Mobile    |
|             | Telephone                                              |
|             |                                                        |
|             | Digital PCN (Personal Communication Network) 1800      |
+-------------+--------------------------------------------------------+
| Parties     | : CAT Telecommunication Public Company Limited “CAT”   |
|             |                                                        |
|             | Total Access Communication Public Company Limited      |
|             | “TAC”                                                  |
|             |                                                        |
|             | Digital Phone Company Limited “DPC”                    |
+-------------+--------------------------------------------------------+
| Date of     | : 19 November 1996                                     |
| Agreement   |                                                        |
+-------------+--------------------------------------------------------+
| Service     | : TAC has accepted to partial assign Cellular Mobile   |
| under the   | Telephone Service: Digital PCN 1800 between CAT and    |
| Agreement   | TAC to DPC. CAT agrees to:                             |
|             |                                                        |
|             | 1.  TAC has partial assigned rights and duty in PCN    |
|             |     1800 (new name is GSM 1800) especially, 1747.90 -  |
|             |     1760.50 and 1855.50 - 1842.90                      |
|             |                                                        |
|             | 2.  TAC has assigned frequency channel to CAT and CAT  |
|             |     allow DPC to use this frequency                    |
|             |                                                        |
|             |   3. DPC agrees to accept the customer of Samart       |
|             |   Corporation Public Company Limited                   |
|             |                                                        |
|             |   4. If the agreement between DPC and CAT has ended    |
|             |   before the Concession agreement. TAC shall have the  |
|             |   preemptive right to operate prior to the third       |
|             |   party.                                               |
+-------------+--------------------------------------------------------+
| Co          | : DPC agrees to pay the consideration to TAC for       |
| nsideration | rights and duty in an amount of 6,990 million Baht as  |
| of          | of 31 December 2002. DPC has the outstanding payment   |
| assignment  | in an amount of 2,317.76 million Baht. The security of |
|             | this outstanding amount is the rights to operate upon  |
|             | the agreement. The interest incurred for this          |
|             | assignment is 9.5 per annual.                          |
|             |                                                        |
|             | The outstanding amount is as follows:                  |
|             |                                                        |
|             | Year 2003 454.37 million Baht                          |
|             |                                                        |
|             |   Year 2004 908.67 million Baht                        |
|             |                                                        |
|             |   Year 2005 and after year 2005 954.72 million Baht    |
|             |                                                        |
|             |   Total 2,317.76 million Baht                          |
+-------------+--------------------------------------------------------+

  (3.3) Agreement to Unwind the Service Provider Agreement

+-------------+---+-----------------------------------------------------+
| Contractor  | : | Total Access Communication Public Company Limited   |
|             |   |                                                     |
|             |   | Digital Phone Company Limited                       |
|             |   |                                                     |
|             |   | Samart Corporation Public Company Limited           |
+-------------+---+-----------------------------------------------------+
| Contract    | : | 7 January 1997                                      |
| Date        |   |                                                     |
+-------------+---+-----------------------------------------------------+
| Type of     | : | DPC has agreed to pay TAC approximately Baht        |
| Contract    |   | 5,187.30 million for the assignment of rights, tool |
|             |   | & equipment use and roaming fee, according to       |
|             |   | Agreement to Unwind the Service Provider Agreement  |
|             |   | dated January 7, 1997.                              |
+-------------+---+-----------------------------------------------------+

  Memorandum for concession agreement for operating Digital PCN
  (Personal Communication Network) 1800 service at 26 August 1999
  (No.1st)

+-------------+---+----------------------------------------------------+
| Contractor  | : | Communication Authority of Thailand Public Company |
|             |   | Limited (CAT)                                      |
|             |   |                                                    |
|             |   | Digital Phone Company Limited (DPC)                |
+-------------+---+----------------------------------------------------+
| Contract    | : | 26 August 1999                                     |
| Date        |   |                                                    |
+-------------+---+----------------------------------------------------+
| Effective   | : | 30 June 1999                                       |
| Date        |   |                                                    |
+-------------+---+----------------------------------------------------+
| Contract    | : | CAT agrees to adjust revenue sharing for DPC to be |
| Details     |   | on the same term as the contract between CAT and   |
|             |   | Total Access Communication (TAC) on the ground     |
|             |   | that DPC contract is transferred from the the      |
|             |   | original TAC contract with CAT. The revision of    |
|             |   | revenue sharing is as follow.                      |
|             |   |                                                    |
|             |   | 1. Adjust revenue share for year 1 to 25%, year    |
|             |   | 2-9 to 20%, year 10-14 to 25%, year 15-16 to 30%   |
|             |   |                                                    |
|             |   | 2. DPC shall pay the minimum revenue share to CAT  |
|             |   | of no less than 5.4 billion Baht, increased from   |
|             |   | the original amount of 3.6 billion Baht.           |
+-------------+---+----------------------------------------------------+

4. Advanced Magic Card Co., Ltd. (“AMC”)

  Electronic Card Business License No 006/2548

  -------------- --- -----------------------------------------------------
  Grantor        :   Ministry of Finance (“MOF”)

  Grant Period   :   since 20 July 2005

  License        :   AMC is granted to operate in electronic money cards
  Details            for goods or services payments instead of cash
                     payments.

  Withdrawal of  :   MOF has sole power to withdraw the license if appears
  License            that AMP violates or does not comply with the
                     business conditions specified by MOF and the Bank of
                     Thailand, or operates its business or has financial
                     status which might likely to cause great damage to
                     general public and fails to improve its financial
                     status or amend its business operation within the
                     specified period.
  -------------- --- -----------------------------------------------------

5. Advanced MPay Co., Ltd. (“AMP”)

  Electronic Card Business License No 003/2548

  -------------- --- -----------------------------------------------------
  Grantor        :   Ministry of Finance (“MOF”)

  Grant Period   :   since 24 June 2005

  License        :   AMP is granted to operate in electronic money cards
  Details            for goods or services payments instead of cash
                     payments.

  Withdrawal of  :   MOF has sole power to withdraw the license if appears
  License            that AMP violates or does not comply with the
                     business conditions specified by MOF and the Bank of
                     Thailand, or operates its business or has financial
                     status which might likely to cause great damage to
                     general public and fails to improve its financial
                     status or amend its business operation within the
                     specified period
  -------------- --- -----------------------------------------------------

6. AIN Globalcomm Co., Ltd. (“AIN”)

  Telecommunications Business License Type 3 No 3Kor/49/002

  -------------- --- -----------------------------------------------------
  Grantor        :   The National Telecommunications Commission (“NTC”)

  Grant Period   :   26 July 2006-25 July 2026

  License        :   AIN provides international telephone services, value
  Details            added services to international telephone service,
                     related services to international telephone service
                     and international telephone network services. AIN is
                     obligated to pay for the license and any fees within
                     the time period as per specified by the NTC.

  Withdrawal of  :   NTC has sole power to withdraw the license if appears
  License            that AIN violates or does not comply with the
                     Telecommunication Business Act B.E. 2544 (2001),
                     Rules or Regulations issued by the NTC, or fails to
                     amend or comply within the specified period.
  -------------- --- -----------------------------------------------------

7. Super Broadband Co., Ltd. (“SBN”)

Internet License Type 1 No NTC/MM/INT/ISP/I/022/2550

+--------------+---+----------------------------------------------------+
| Grantor      | : | The National Telecommunications Commission (“NTC”) |
+--------------+---+----------------------------------------------------+
| Grant Period | : | 10 October 2007- 9 October 2008                    |
|              |   |                                                    |
|              |   | (License is subjected to renewal every year)       |
+--------------+---+----------------------------------------------------+
| License      | : | SBN provides internet services to its customers    |
| Details      |   | without having its own telecommunication network.  |
|              |   | SBN is obligated to pay for the license fee within |
|              |   | the time period as specified by the NTC.           |
+--------------+---+----------------------------------------------------+
| Withdrawal   | : | NTC has sole power to withdraw the license if it   |
| of License   |   | appears that SBN breaches or does not comply with  |
|              |   | the Telecommunication Business Act B.E. 2544       |
|              |   | (2001), Rules or Regulations issued by the NTC, or |
|              |   | fails to remedy within the specified period.       |
+--------------+---+----------------------------------------------------+

International Internet Gateway License Type 2 No NTC/INT/II/008/2550

  --------------- --- ----------------------------------------------------
  Grantor         :   The National Telecommunications Commission (“NTC”)

  Grant Period    :   15 October 2007- 14 October 2012

  License Details :   SBN provides international internet services,
                      provide international gateway for domestic internet
                      service provider, internet exchange service with
                      having its own telecommunication network. SBN shall
                      provide limited service to particular group of
                      customers. SBN is obligated to pay for the license
                      fee within the time period as specified by the NTC.

  Withdrawal of   :   NTC has sole power to withdraw the license if
  License             appears that SBN breaches or does not comply with
                      the Telecommunication Business Act B.E. 2544 (2001),
                      Rules or Regulations issued by the NTC, or fails to
                      remedy within the specified period.
  --------------- --- ----------------------------------------------------

Telecommunications Business License Type 3 No 3Kor/50/006

  --------------- --- ---------------------------------------------------- --
  Grantor         :   The National Telecommunications Commission (“NTC”)   

  Grant Period    :   16 August 2007- 15 August 2027                       

  License Details :   SBN provides telecommunication network services with 
                      its own network. for fixed line, ISDN, data service, 
                      and value-added service. SBN is obligated to pay for 
                      the license and any fees within the time period as   
                      specified by the NTC.                                

  Withdrawal of   :   NTC has sole power to withdraw the license if        
  License             appears that SBN breaches or does not comply with    
                      the Telecommunication Business Act B.E. 2544 (2001), 
                      Rules or Regulations issued by the NTC, or fails to  
                      remedy within the specified period.                  
  --------------- --- ---------------------------------------------------- --

Attachment 3 (2) Independent Directors and Audit Committee’s Opinion
regarding

  the Connected Transactions for the Year 2007

[]

Attachment 3 (3) Audit Committee Report 2007

[]

[]

[]

Attachment 3 (4) Board of Directors’ Responsibility for Financial
Reporting

[]