Document:

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CONFIDENTIAL INFORMATION REDACTED                                  Exhibit 10.74

                     (Translation of Thai Language Original)

                       THE AGREEMENT FOR MARKETING SERVICE
                            OF MOBILE TELEPHONE UNDER
                      THE CELLULAR DIGITAL AMPS 800 BAND A
                          SYSTEM OF THE COMMUNICATIONS
                              AUTHORITY OF THAILAND
                                     BETWEEN
                    THE COMMUNICATIONS AUTHORITY OF THAILAND
                                       AND
                HUTCHISON CAT WIRELESS MULTIMEDIA COMPANY LIMITED

                                   ----------

THIS AGREEMENT is made at the Communications Authority of Thailand No. 99 Moo 3,
Chaeng Watthana Road, Kwaeng Thung Song Hong, Khet Laksi, Bangkok Metropolis
10002 on 11 August 2003 between THE COMMUNICATIONS AUTHORITY OF THAILAND, by Mr.
Thirapong Suttinon, Governor of the Communications Authority of Thailand,
hereinafter referred to as "CAT", on the one part, and HUTCHISON CAT WIRELESS
MULTIMEDIA COMPANY LIMITED (previously known as TAWAN MOBILE TELECOM LIMITED), a
company incorporated under the laws of Thailand, by Mr. Ormsin Chivapruck and
Mr. Stephen Wing Fai Sun, the Directors authorized to sign to bind HUTCHISON CAT
WIRELESS MULTIMEDIA COMPANY LIMITED as evidenced by the Certification Document
of the Partnerships and Companies Registration Office, Bangkok Metropolis No.
10939 dated 16 July 2003, which is attached hereto and referred to in Clause
18.1, and having its head office located at 1768 IFCT Tower Floor 23rd Floor,
New Petchburi Rd., Kwaeng Huay Kwang, Khet Bangkapi, Bangkok 10320, hereinafter
referred to as the "Company", on the other part.

The Parties agree as follows:

CLAUSE 1.  DEFINITIONS

In this Agreement:

"Marketing Service of Mobile Telephone Under the Cellular Digital AMPS 800 Band
A System of CAT" means the provision of means for the sale of cellular mobile
telephones, the provision of means for the sale of services of mobile telephone
under the Cellular Digital AMPS 800 Band A System of CAT including additional
services under the Cellular Digital AMPS 800 Band A System of CAT as well as the
provision of the after sale services and supplementary services relating to the
sale and the marketing promotion thereof.

"Metropolitan" means Bangkok Metropolis and Nonthaburi, Samutprakarn,
Pathumthani, Prachuab Kirikhan, Petchburi, Ratchaburi, Kanchanaburi, Nakorn
Pathom, Samutsongkram, Samutsakorn, Suphanburi, Ayudhaya, Angthong, Lopburi,
Singburi, Prachinburi, Nakorn Nayok, Srakaew, Chonburi, Chachoengsao, Rayong,
Chantaburi, Trad.

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"Upcountry" means other provinces outside the Metropolitan.

"Access Fee" means the fee for the mobile telephone number as imposed to the
recipients of service by CAT in accordance with regulations and orders of CAT
relating to cellular mobile telephone services.

"Airtime Charges" means the charges for cellular mobile telephone services and
fees for the uses of additional services as imposed to the recipients of service
by CAT in accordance with regulations and orders of CAT relating to cellular
mobile telephone services but not including fees for the use of overseas call
and other telecommunication services made available by CAT.

"Connecting Fee" means the fee for connecting the cellular mobile telephone
network of CAT with the telephone or telecommunications network of the Telephone
Organization of Thailand or of any person who is authorized, entitled or
permitted to the providing of telephone or telecommunications services.

"Monthly Service Fee" means the Access Fee and the Airtime Charges which CAT
imposes to the recipients of service on a monthly basis.

"Sign-on Fee" means the fee for allocation of mobile telephone number under the
cellular system, which is to be paid to CAT by the recipients of service, as
prescribed in the regulations and orders of CAT relating to the service of
mobile telephone under the cellular system."

"Revenue received by CAT" means the amount of Monthly Service Fee billed to the
recipients of service as stated in the invoices deducted by Connecting Fees,
Roaming fees and remuneration for marketing services payable to the Company in
Clause 5.

"Roaming Fee" means the fees for joint utilization of the networks of other
service providers of mobile telephone under the cellular system.

"Force Majeure" means to include any event outside the reasonable control of the
party concern that prevents such party from implementing this Agreement, such as
storm, flood, fire or peril or other similar natural calamity, riot or civil
commotion, usurpation, embargo, blockage, accident during transportation of the
equipment and accessories, strike, ware, unreasonable delay by government agency
or any other state enterprise in providing necessary service requested by the
Company.

"Postpaid Service" means mobile telephone service under the cellular digital
AMPS 800 Band A System of CAT, where the recipients of service are required to
execute a written service agreement with CAT, and CAT charges a Monthly Service
Fee from the recipients of service after the use of services.

"Prepaid Service" means mobile telephone service under the cellular digital AMPS
800 Band A system of CAT, where the recipients of service are not required to
execute a written service agreement with CAT, and the recipients of service pay
for the services, whether through the

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purchase of a prepaid card, or through the addition of service fee, prior to
using the aforesaid services

"Fees" means fees as prescribed in regulations or orders of CAT in respect of
the cellular mobile telephone services the recipients of service charges its
customers "International Call Fees" means service fees for international calls
which CAT charges its recipients of service marketed by the Company under this
Agreement

"Content Service Fees" means service fees for which a content provider, who is a
third-party, charges in the fixed rate of [***] of the content service fees that
CAT charges its recipients of service.

 "Prepaid Service Fees" means service fees which have the value according to
face value of prepaid cards and service fees which have the value according to
the amount of money added to the service fee for Prepaid Services.

"International Roaming Services" means the provision of international roaming
services of both the inbound roaming and outbound roaming for the mobile
telephones under the Cellular Digital AMPS 800 Band A System of CAT in the
Central Region where CAT has assigned the Company to undertake marketing
activities under this Agreement in the forms of voice, SMS and data, both
inbound roaming and outbound roaming, and other relevant services as the Parties
may agree upon.

CLAUSE 2.  THE MARKETING SERVICE OF MOBILE TELEPHONE UNDER THE CELLULAR DIGITAL
           AMPS 800 BAND A SYSTEM

CAT agrees for the Company to provide the Marketing Service of Mobile Telephone
Under the Cellular Digital AMPS 800 Band A System of CAT so that there will be
recipients of the service of the mobile telephone under the Cellular Digital
AMPS 800 Band A System of CAT specifically in respect of the numbers which CAT
assigns the Company to undertake the marketing service in the Metropolitan of
not less than [***] numbers, divided into new recipients of service subscribing
not less than [***] numbers and existing recipients of service who have used the
service of the mobile telephone under the Cellular Analog AMPS 800 Band A System
of CAT as of September 30, 2000 and whom shall be encouraged by the Company to
come to use the service of the mobile telephone under the Cellular Digital AMPS
800 Band A System of CAT, subscribing the balance of approximately [***]
numbers. In doing so, the Company shall comply with conditions herein stipulated
including the rules, regulations, orders and policy of CAT.

CLAUSE 3.  DURATION FOR PROVISION OF MARKETING SERVICE

CAT agrees for the Company to provide the Marketing Service of Mobile Telephone
Under the Cellular Digital AMPS 800 Band A System of CAT, as stipulated in
Clause 2 hereof, for a period commencing from 22 April 1998 until 21 April 2015.

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CLAUSE 4.  CONDITIONS FOR MARKETING SERVICE

4.1     The Company shall provide the Marketing Service of Mobile Telephone
        Under the Cellular Digital AMPS 800 Band A System of CAT as herein
        stipulated to recipients of service of mobile telephones under the
        Cellular Digital AMPS 800 Band A System as follows:

        4.1.1   For the first [***] numbers, to be subscribed within 1 year from
                the effective date of the Agreement Amending the Marketing
                Service of Mobile Telephone Under the Cellular Digital AMPS 800
                Band A System of CAT No. 2/2543 dated 16 October 2000, which are
                divided into new recipients of service subscribing [***] numbers
                and existing recipients of service who use the service of the
                mobile telephone under the Cellular Analog AMPS 800 Band A
                System of CAT and whom shall be encouraged by the Company to
                come to use the service of the mobile telephone under the
                Cellular Digital AMPS 800 Band A System of CAT, subscribing
                another [***] numbers.

        4.1.2   For the following [***] numbers, to be subscribed within 1 year
                from the expiry date of the period stipulated in Clause 4.1.1,
                which are divided into new recipients of service subscribing
                [***] numbers and existing recipients of service who use the
                service of the mobile telephone under the Cellular Analog AMPS
                800 Band A System of CAT and whom shall be encouraged by the
                Company to come to use the service of the mobile telephone under
                the Cellular Digital AMPS 800 Band A System of CAT, subscribing
                approximately [***] numbers.

        4.1.3   For the next [***] numbers, to be subscribed within the period
                of 1 year from the expiry date of the period stipulated in
                Clause 4.1.2.

        4.1.4   For the next [***] numbers, to be subscribed within the period
                of 1 year from the expiry date of the period stipulated in
                Clause 4.1.3.

        4.1.5   For the next [***] numbers, to be subscribed within the period
                of 1 year from the expiry date of the period stipulated in
                Clause 4.1.4.

        4.1.6   For the next [***] numbers, to be subscribed within the period
                of 1 year from the expiry date of the period stipulated in
                Clause 4.1.5.

        4.1.7   For the next [***] numbers, to be subscribed within the period
                of 1 year from the expiry date of the period stipulated in
                Clause 4.1.6.

        4.1.8   For the next [***] numbers, to be subscribed within the period
                of 1 year from the expiry date of the period stipulated in
                Clause 4.1.7.

        4.1.9   For the next [***] numbers, to be subscribed within the period
                of 1 year from the

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                expiry date of the period stipulated in Clause 4.1.8.

        4.1.10  For the next [***] numbers, to be subscribed within the period
                of 1 year from the expiry date of the period stipulated in
                Clause 4.1.9.

4.2     The Company shall, at its sole expenses, encourage the existing
        recipients of service who currently use the service of mobile telephone
        under the Cellular Analog AMPS 800 Band A System of CAT to come to use
        the service of mobile telephone under the Cellular Digital AMPS 800 Band
        A System of CAT as stipulated herein. If, within 2 years form the
        effective date of the Agreement Amending the Agreement for Marketing
        Service of Mobile Telephone Under the Cellular Digital AMPS 800 Band A
        System of CAT No. 2/2543 dated 16 October 2000, the Company is unable to
        encourage the existing recipients of service who currently use the
        service of mobile telephone under the Cellular Analog AMPS 800 Band A
        System of CAT to come to use the service of mobile telephone under the
        Cellular Digital AMPS 800 Band A System of CAT under this Agreement
        wholly, CAT has the right to dispose of those recipients whom the
        Company can yet to encourage to other service providers under the
        cellular system.

4.3     As the Company has agreed to guarantee the minimum Revenue received by
        CAT to CAT according to Clause 4.5, if the Company fail to achieve the
        number of recipients of service within the period as provided in Clause
        4.1.1 to 4.1.10, such shall not be the breach of the Agreement under
        Clause 13 and CAT shall not have the right to terminate this Agreement
        thereunder.

4.4     The Company shall, from the day immediately following to expiry date of
        the period stipulated in Clause 4.1.10 until the expiry of the period
        stipulated in Clause 3, provide the Marketing Service of Mobile
        Telephone Under the Cellular Digital AMPS 800 Band A System of CAT to
        the extent that there shall always be recipients of service subscribing
        not less than [***] numbers. Should it appear that there are recipients
        of service subscribing less than [***] numbers for any consecutive
        period of 1 (One) year, CAT shall be entitled to provide marketing
        service by itself or assign other person to undertake the marketing
        service so as to render the unsubscribed numbers so subscribed, and the
        Company shall thereby not be entitled to the remuneration stipulated in
        Clause 5 for the numbers directly marketed by CAT or such other person.
        However, CAT shall be liable to pay the lease fees, and fees for
        improvement, replacement, repair and maintenance in respect of the
        equipment and accessories in Clause 16.4 to the Leasing Company in
        proportion to the numbers of which CAT is entitled to provide the
        marketing service or assigns other person to undertake the marketing
        service.

4.5     Within the period in Clause 3, to guarantee the Revenue received by CAT
        in each year to CAT, the Company agrees to guarantee the minimum Revenue
        received by CAT in each year for the whole term of this Agreement in the
        amount of not less than [***], divided into the following amount per
        year:

        Year 1     (1 October 2000 to 30 September 2001) is  [***]
             2     (1 October 2001 to 30 September 2002) is  [***]

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             3     (1 October 2002 to 30 September 2003) is  [***]
             4     (1 October 2003 to 30 September 2004) is  [***]
             5     (1 October 2004 to 30 September 2005) is  [***]
             6     (1 October 2005 to 30 September 2006) is  [***]
             7     (1 October 2006 to 30 September 2007) is  [***]
             8     (1 October 2007 to 30 September 2008) is  [***]
             9     (1 October 2008 to 30 September 2009) is  [***]
             10    (1 October 2009 to 30 September 2010) is  [***]
             11    (1 October 2010 to 30 September 2011) is  [***]
             12    (1 October 2011 to 30 September 2012) is  [***]
             13    (1 October 2012 to 30 September 2013) is  [***]
             14    (1 October 2013 to 30 September 2014) is  [***]
             15    (1 October 2014 to 21 April 2015) is      [***]

        The term "year" means a period of 12 months of the 1st to 15th year,
        which, for the 1st to 14th year, shall commence on October 1 until
        September 30 of the following year and for the 15th year shall commence
        on October 1, 2014 until April 21, 2015.

        The term "half-year" means a period of 6 months of each year, the first
        of which commencing on October 1 until March 31 of the following year
        and the second of which commencing on April 1 until September 30 of the
        same year except the 15th year which has only the first half of the year
        which shall commence on October 1, 2014 until April 21, 2015.

4.6     In the case that Annual Revenue received by CAT for an entire year is
        less than the minimum Revenue received by CAT in that year under Clause
        4.5, the Company must additionally pay to CAT equal to the minimum
        Revenue received by CAT, subtracted by the Annual Revenue received by
        CAT in the particular year by making payment to CAT as follows:

        4.6.1   If Revenue received by CAT during the first half of the year is
                lower than the minimum Revenue received by CAT under Clause 4.5
                for the first half of the year, the Company must make an
                additional payment to CAT in an amount equal to:

                the minimum Revenue received by CAT under Clause 4.5 for the
                first half of the year subtracted by Revenue received by CAT
                during the first half of the year.

                The Company shall make the additional payment thereof to CAT
                within 7 days following March 31 of the 1st to 14th year, and on
                April 21, 2015 of the 15th year.

        4.6.2   If Revenue received by CAT during the first half of the year is
                lower than the minimum Revenue received by CAT under Clause 4.5
                for the first half of the year but Revenue received by CAT
                during the second half of the year is higher than the minimum
                Revenue received by CAT under Clause 4.5 and:

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                (1)     If Revenue received by CAT for the entire year is lower
                        than the minimum Revenue received by CAT under Clause
                        4.5 for that year but Revenue received by CAT for the
                        entire year plus the additional payment that the Company
                        must pay to CAT under Clause 4.6.1 is higher than the
                        minimum Revenue received by CAT for that entire year,
                        CAT must make repayment to the Company in an amount
                        equal to:

                        Revenue received by CAT for the entire year plus the
                        additional payment that the Company must pay to CAT
                        under Clause 4.6.1, subtracted by the Revenue received
                        by CAT under Clause 4.5 for that entire year.

                (2)     If Revenue received by CAT for the entire year is higher
                        than the minimum Revenue received by CAT under Clause
                        4.5 for that entire year, CAT must make repayment to the
                        Company in an amount equal to the additional payment
                        that the Company must pay to CAT under Clause 4.6.1.

                        CAT agrees to make repayment under (1) or (2) to the
                        Company within 7 days following September 30 of the 1st
                        to 14th year, and April 21, 2015 of the 15th year.

        4.6.3   If Revenue received by CAT during the first half of the year is
                higher than the minimum Revenue received by CAT under Clause 4.5
                for the first half of the year and Revenue received by CAT
                during the second half of the year is lower than the minimum
                Revenue received by CAT under Clause 4.5 for the second half of
                the year, whereby

                (1)     Revenue received by CAT for the entire year is lower
                        than the minimum Revenue received by CAT under Clause
                        4.5 for that entire year, the Company must make an
                        additional payment to CAT in an amount equal to:

                        the minimum Revenue received by CAT under Clause 4.5 for
                        the entire year subtracted by Revenue received by CAT
                        for that entire year.

                        The Company must make an additional payment thereof to
                        CAT within 7 days following September 30 of the 1st to
                        14th year, and April 21, 2015 of the 15th year.

                (2)     Revenue received by CAT for the entire year is higher
                        than the minimum Revenue received by CAT under Clause
                        4.5 for that entire year, the Company needs not make
                        payment to CAT.

4.7     In respect of the compensation of the Access Fees under Clause 4.3 of
        the Agreement for Marketing Service of Mobile Telephone Under the
        Cellular Digital AMPS 800 Band A

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        System of CAT dated 14 August 1996 which the Company owes to CAT, CAT
        agrees that the Company can defer the payment of such outstanding
        compensation of the Access Fees and interest to CAT. There will be
        calculation of the compensation and default interest thereon at [***] as
        from 22 April 1999 until the effective date of the Agreement Amending
        the Agreement for Marketing Service of Mobile Telephone Under the
        Cellular Digital AMPS 800 Band A System of CAT No. 2/2543 dated 16
        October 2000 and such compensation and interest shall not accrued after
        the effective date of the Agreement Amending the Agreement for Marketing
        Service of Mobile Telephone Under the Cellular Digital AMPS 800 Band A
        System of CAT No. 2/2543 dated 16 October 2000. However, if the Company
        fails to procure, install, test and transfer title in the equipment and
        accessories and test equipment and RF sub-system analysis device
        including spare parts thereof for the [***] cell sites in Clause 16.1 to
        CAT in full and ready for service by 30 November 2000, there will be
        calculation of the compensation and interest thereon at [***] according
        to Clause 4.3 of the Agreement for Marketing Service of Mobile Telephone
        Under the Cellular Digital AMPS 800 Band A System of CAT dated 14 August
        1996 backwards to the day following the effective date of the Agreement
        Amending the Marketing Agreement No. 2/2543 dated 16 October 2000 until
        the Company can procure, install, test and transfer the title in the
        equipment and accessories and test equipment and RF sub-system analysis
        device including spare parts thereof in full and is ready to provide the
        service up to [***] cell sites to CAT according to Clause 16.1.

4.8     For the compensation for Access Fees together with interest which the
        Company owes to CAT under Clause 4.7 above, CAT agrees that the Company
        can defer the payment for 3 years without interest and make payment in 3
        installments. The first installment in the amount of [***] of the total
        amount of such compensation and interest shall be paid within 1 October
        2003, the second installment in the amount of [***] thereof within 1
        October 2004, and the last installment in the amount of [***] thereof
        within 1 October 2005.

        If the Company is in default of any installment payment of the
        compensation and interest under the first paragraph, it shall be deemed
        that the Company is in default of payment of the whole amount of debt
        and the Company must pay all the outstanding compensation for Access
        Fees together with interest thereon at [***] to CAT as from the date of
        default until full payment is made. The provisions in this Clause shall
        not prejudice the right of termination of CAT under Clause 13.

CLAUSE 5.  REMUNERATION FOR MARKETING SERVICE

5.1     Subject to the stipulations of Clause 5.3, throughout the period
        stipulated in Clause 3, CAT agrees to remunerate the Company for the
        provision of the Marketing Service of Mobile Telephone Under the
        Cellular Digital AMPS 800 Band A System of CAT as follows:

        5.1.1   At the rate of [***] of the Access Fees according to the amount
                billed to the recipients of service and Value Added Tax, payable
                within 20 (Twenty) days

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                from the date on which CAT has duly received the Access Fee
                pursuant to Clause 7.1. If CAT fails to make payment to the
                Company in such period, the Company shall have the right to
                setoff the remuneration under this Clause 5.1.1 against any
                amount which the Company must remit or pay to CAT under this
                Agreement.

        5.1.2   At the rate of [***] of the sum representing the Monthly Service
                Fees according to the amount billed to the recipients of service
                as specified in the invoices less Connecting Fees and Roaming
                Fees, payable to the Company in accordance with Clause 5.2.

                In calculating the remuneration as above-mentioned, the Value
                Added Tax levied on the Sign-on Fees and the Monthly Service
                Fee, which is paid by CAT for or collected from the recipients
                of service, shall, prior to such calculation, be deducted.

        5.1.3   Since the Company must be responsible for paying the expenses
                under Clauses 16.4 and 16.9, both Parties agree that such rate
                of remuneration for marketing service in Clauses 5.1.1 and 5.1.2
                shall be adjusted according to the number of equipment and
                accessories as well as equipment and accessories for the
                additional services relating to mobile telephone under the
                Cellular Digital AMPS 800 Band A System, the test equipment and
                RF sub-system analysis device and all requisites in the
                operation of the cell sites which have been completely installed
                and tested and are in service, as follows:

               5.1.3.1  In case of Postpaid Service where the Access Fees are
                        imposed at [***] per number per month:

                        (1)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connection Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Company has
                                completely procured, installed, tested and
                                transferred the title of the equipment and
                                accessories and test equipment and RF sub-system
                                analysis device including spare parts thereof,
                                and is ready to provide service to CAT according
                                to Clause 16.1 for up to [***] cell sites.

                        (2)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the

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                                invoices after deduction of the Connecting Fees,
                                Content Service Fees, and Roaming Fees,
                                commencing as from the day following the date on
                                which the Leasing Company has completely
                                installed and tested the equipment and
                                accessories, the test equipment and RF
                                sub-station system analysis device and all
                                requisites under Clause 16.4, and can provide
                                the service for up to [***] cell sites.

                        (3)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Leasing Company
                                has completely installed and tested the
                                equipment and accessories, the test equipment
                                and RF sub-station system analysis device and
                                all requisites under Clause 16.4, and can
                                provide the service for up to [***] cell sites.

                        (4)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Leasing Company
                                has completely installed and tested the
                                equipment and accessories, the test equipment
                                and RF sub-station system analysis device and
                                all requisites under Clause 16.4, and can
                                provide the service for up to [***] cell sites.

                        (5)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Leasing Company
                                has completely installed and tested the
                                equipment and accessories, the test equipment
                                and RF sub-station system analysis device and
                                all requisites under Clause 16.4, and can
                                provide the service for up to [***] cell sites.

               5.1.3.2  In case of Postpaid Service where the Access Fees are
                        imposed at Baht 300 per number per month:

                        (1)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value

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                                Added Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Leasing Company
                                has completely procured, installed, tested and
                                transferred the title in the equipment and
                                accessories, the test equipment and RF
                                sub-system analysis device including spare parts
                                thereof, and is ready to provide service to CAT
                                according to Clause 16.1 for up to [***] cell
                                sites.

                        (2)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Company has
                                completely installed and tested the equipment
                                and accessories, the test equipment and RF
                                sub-station system analysis device devices, and
                                all requisites under Clause 16.4, and can
                                provide the service for up to [***] cell sites.

                        (3)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Leasing Company
                                has completely installed and tested the
                                equipment and accessories, the test equipment
                                and RF sub-station system analysis device and
                                all requisites under Clause 16.4, and can
                                provide the service for up to [***] cell sites.

                        (4)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Leasing Company
                                has completely installed and tested the
                                equipment and accessories, the test equipment
                                and RF sub-station system analysis device and
                                all requisites under Clause 16.4, and can
                                provide the service for up to [***] cell sites.

<PAGE>

                                     - 12 -

                        (5)     At the rate of [***] of the Sign-on Fees and
                                Fees according to the amount billed to the
                                recipients of service together with Value Added
                                Taxes of the remuneration for marketing
                                services, and the Monthly Service Fees
                                (exclusive of Value Added Taxes) according to
                                the amount billed to the recipients of services
                                as shown in the invoices after deduction of the
                                Connecting Fees, Content Service Fees, and
                                Roaming Fees, commencing as from the day
                                following the date on which the Company has
                                completely installed and tested the equipment
                                and accessories, the test equipment and RF
                                sub-station system analysis device and all
                                requisites under Clause 16.4, and can provide
                                the service for up to [***] cell sites.

               5.1.3.3  In case that the Leasing Company has completely
                        installed and tested the equipment and accessories, the
                        test equipment and RF sub-station system analysis device
                        and all requisites under Clause 16.4 and can provide the
                        service up to [***] cell sites, if the equipment and
                        accessories, the test equipment and RF sub-station
                        system analysis device and all requisites under Clause
                        16.4 which have been installed and tested by the Leasing
                        Company and are in service up to [***] cell sites cannot
                        provide the service for a consecutive period more than
                        120 days, whether at any one or several cell cites, CAT
                        shall pay remuneration for marketing service to the
                        Company during the period of unavailability of the
                        service at the rate according to Clause 5.1.3.1(1) or
                        Clause 5.1.3.2(1), as the case may be.

               5.1.3.4  In case that the Leasing Company has completely
                        installed and tested the equipment and accessories, the
                        test equipment and RF sub-station system analysis device
                        and all requisites under Clause 16.4 and can provide the
                        service up to [***] cell sites, if the equipment and
                        accessories, the test equipment and RF sub-station
                        system analysis device and all requisites under Clause
                        16.4 which have been installed and tested by the Leasing
                        Company and are in service up to [***] cell sites cannot
                        provide the service for a consecutive period more than
                        120 days, whether at any one or several cell cites, CAT
                        shall pay remuneration for marketing service to the
                        Company during the period of unavailability of the
                        service as follows:

                        (1)     In the case that less than [***] cell sites are
                                in service, CAT shall pay remuneration for
                                marketing service to the Company at the rate
                                under Clause 5.1.3.1(1) or Clause 5.1.3.2(1), as
                                the case may be.

                        (2)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate under Clause 5.1.3.1(2)
                                or Clause 5.1.3.2(2), as the case may be.

               5.1.3.5  Subject to Clauses 5.1.3.6 and 5.1.3.7, in case that the
                        Leasing Company

<PAGE>

                                     - 13 -

                        has completely installed and tested the equipment and
                        accessories, the test equipment and RF sub-station
                        system analysis device and all requisites under Clause
                        16.4 and can provide the service up to [***] cell sites,
                        if the equipment and accessories, the test equipment and
                        RF sub-station system analysis device and all requisites
                        under Clause 16.4 which have been installed and tested
                        by the Leasing Company and are in service up to [***]
                        cell sites cannot provide the service for a consecutive
                        period more than 120 days, whether at any one or several
                        cell cites, CAT shall pay remuneration for marketing
                        service to the Company during the period of
                        unavailability of the service as follows:

                        (1)     In the case that less than [***] cell sites are
                                in service, CAT shall pay remuneration for
                                marketing service to the Company at the rate
                                under Clause 5.1.3.1(1) or Clause 5.1.3.2(1), as
                                the case may be.

                        (2)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate under Clause 5.1.3.1(2)
                                or Clause 5.1.3.2(2), as the case may be.

                        (3)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate under Clause 5.1.3.1(3)
                                or Clause 5.1.3.2(3), as the case may be.

               5.1.3.6  In case that the Leasing Company has completely
                        installed and tested the equipment and accessories, the
                        test equipment and RF sub-station system analysis device
                        and all requisites under Clause 16.4 and can provide the
                        service up to [***] cell sites, but cannot yet install
                        and test the said equipment and accessories, the test
                        equipment and RF sub-station system analysis device and
                        all requisites and be ready to provide the service for
                        up to [***] cell sites or more within 30 November 2004,
                        the Parties agree to adjust the remuneration for
                        marketing service under Clause 5.1.3.1 (4) or Clause
                        5.1.3.2 (4), as the case may be, to the rate of [***] of
                        the Sign-on Fees and Fees according to the amount billed
                        to the recipients of service together with Value Added
                        Taxes of the remuneration for marketing services, and
                        the Monthly Service Fees (exclusive of Value Added
                        Taxes) according to the amount billed to the recipients
                        of services as shown in the invoices after deduction of
                        the Connecting Fees, Content Service Fees, and Roaming
                        Fees, commencing as from 1 December 2004 until the
                        Leasing Company can completely install and test the said
                        equipment and accessories, the test equipment and RF
                        sub-station system analysis device and all requisites
                        and provide the service up to [***] cell sites or more.
                        If, during 1 December 2004 to 30 November 2005, the

<PAGE>

                                     - 14 -

                        equipment and accessories, the test equipment and RF
                        sub-station system analysis device and all requisites
                        under Clause 16.4 which have been installed and tested
                        by the Leasing Company and are in service up to [***]
                        cell sites cannot provide the service for a consecutive
                        period more than 120 days, whether at any one or several
                        cell cites, CAT shall pay remuneration for marketing
                        service to the Company during the period of
                        unavailability of the service as follows:

                        (1)     In the case that less than [***] cell sites are
                                in service, CAT shall pay remuneration for
                                marketing service to the Company at the rate
                                under Clause 5.1.3.1(1) or Clause 5.1.3.2(1), as
                                the case may be.

                        (2)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate under Clause 5.1.3.1(2)
                                or Clause 5.1.3.2(2), as the case may be.

               5.1.3.7  In the time period following Clause 5.1.3.6, if the
                        Leasing Company still cannot install and test the
                        equipment and accessories, the test equipment, and RF
                        sub-station system analysis device and all requisites
                        under Clause 16.4 and be ready to provide the service
                        for up to [***] cell sites or more by 30 November 2005,
                        the Parties agree to adjust the remuneration for
                        marketing service payable to the Company under Clause
                        5.1.3.6 [***] to the rate of [***] of the Sign-on Fees
                        and Fees according to the amount billed to the
                        recipients of service together with Value Added Taxes of
                        the remuneration for marketing services, and the Monthly
                        Service Fees (exclusive of Value Added Taxes) according
                        to the amount billed to the recipients of services as
                        shown in the invoices after deduction of the Connecting
                        Fees, Content Service Fees, and Roaming Fees, commencing
                        as from 1 December 2005 until the Leasing Company can
                        completely install and test the said equipment and
                        accessories, the test equipment, and RF sub-station
                        system analysis device and all requisites and provide
                        the service for up to [***] cell sites or more. If,
                        during 1 December 2005 until the date on which the
                        Leasing Company has completely installed and tested the
                        said equipment and accessories, the test equipment and
                        RF sub-station system analysis device and all requisites
                        and can provide the service up to [***] cell sites or
                        more, the equipment and accessories, test equipment and
                        RF sub-station system analysis device and all requisites
                        under Clause 16.4 which have been installed and tested
                        by the Leasing Company and are in service up to [***]
                        cell sites cannot provide the service for a consecutive
                        period more than 120 days, whether at any one or several
                        cell cites, CAT shall pay remuneration for marketing
                        service to the Company during the period of
                        unavailability of the service at the rate under Clause
                        5.1.3.1(1) or Clause 5.1.3.2(1), as the case may be.

               5.1.3.8  In case that the Leasing Company has completely
                        installed and tested the

<PAGE>

                                     - 15 -

                        equipment and accessories, the test equipment and RF
                        sub-station system analysis device and all requisites
                        under Clause 16.4 and can provide the service up to
                        [***] cell sites or more, if the equipment and
                        accessories, the test equipment and RF sub-station
                        system analysis device and all requisites under Clause
                        16.4 which have been installed and tested by the Leasing
                        Company and are in service cannot provide the service
                        for a consecutive period more than 120 days, whether at
                        any one or several cell cites, CAT shall pay
                        remuneration for marketing service to the Company during
                        the period of unavailability of the service as follows:

                        (1)     In the case that less than [***] cell sites are
                                in service, CAT shall pay remuneration for
                                marketing service to the Company at the rate
                                under Clause 5.1.3.1(1) or Clause 5.1.3.2(1), as
                                the case may be.

                        (2)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate under Clause 5.1.3.1(2)
                                or Clause 5.1.3.2(2), as the case may be.

                        (3)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate under Clause 5.1.3.1(3)
                                or Clause 5.1.3.2(3), as the case may be.

                                In calculating the number of equipment and
                                accessories, the test equipment and RF
                                sub-station system analysis device and all
                                requisites for the purpose of adjusting the rate
                                of remuneration for marketing service under this
                                Clause 5.1, it shall be deemed that such
                                equipment and accessories, the test equipment
                                and RF sub-station system analysis device and
                                all requisites are completely installed and
                                tested and ready for service when the they are
                                tested in accordance with the procedures
                                prescribed in the document attached hereto an
                                referred to in Clause 15.4 and the CAT
                                representative participates in and approves such
                                test. The Company shall notify CAT in writing at
                                least 7 CAT's business days prior to the test
                                date. In case that a notice has been given in
                                advance but CAT fails to assign its
                                representative to attend the test, it is agreed
                                that the test needs no approval from CAT
                                representative.

               5.1.3.9  In case of the Prepaid Service

                        (1)     At the rate of [***] of the Fees according to
                                the amount billed to the recipients of service
                                (together with Value Added Taxes of the
                                remuneration for marketing services) and the
                                Prepaid Service Fees sold or added (exclusive of
                                Value Added Taxes) after deduction of the
                                Connecting Fees at the rate of [***] of the
                                Prepaid Service

<PAGE>

                                     - 16 -

                                Fees (which is inclusive of Value Added Taxes),
                                Content Service Fees, and Roaming Fees.

               5.1.3.10 In the case that the Leasing Company has completely
                        installed and tested the equipment and accessories, the
                        test equipment and RF sub-station system analysis device
                        and all requisites under Clause 16.4 and has provided
                        the service up to [***] cell sites, but the Leasing
                        Company is not able to completely install and test the
                        equipment and accessories, the test equipment and RF
                        sub-station system analysis device and provide the
                        service of over [***] cell sites by 30 November 2004,
                        the Parties agree to adjust the remuneration for
                        marketing service payable to the Company under Clause
                        5.1.3.9 to the rate of to [***] of the Fees according to
                        the amount billed to the recipients of service (together
                        with Value Added Taxes of the remuneration for marketing
                        services), and the Prepaid Service Fees sold or added
                        (exclusive of Value Added Taxes) after deduction of the
                        Connecting Fees at the rate of [***] of the Prepaid
                        Service Fees (which is inclusive of Value Added Taxes),
                        Content Service Fees, and Roaming Fees, commencing as
                        from 1 December 2004 until the Leasing Company can
                        completely install and test the said equipment and
                        accessories, the test equipment, and RF sub-station
                        system analysis device and all requisites and provide
                        the service for up to [***] cell sites or more. However,
                        if, during 1 December 2004 to 30 November 2005, the
                        equipment and accessories, test equipment and RF
                        sub-station system analysis device and all requisites
                        under Clause 16.4 which have been installed and tested
                        by the Leasing Company and are in service up to [***]
                        cell sites cannot provide the service for a consecutive
                        period more than 120 days, whether at any one or several
                        cell cites, CAT shall pay remuneration for marketing
                        service to the Company during the period of
                        unavailability of the service as follows:

                        (1)     In the case that less than [***] cell sites are
                                in service, CAT shall pay remuneration for
                                marketing service to the Company at the rate of
                                [***] of the Fees according to the amount billed
                                to the recipients of service (together with
                                Value Added Taxes of the remuneration for
                                marketing services), and the Prepaid Service
                                Fees sold or added (exclusive of Value Added
                                Taxes) after deduction of the Connecting Fees at
                                the rate of [***] of the Prepaid Service Fees
                                (which is inclusive of Value Added Taxes),
                                Content Service Fees, and Roaming Fees.

                        (2)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate of [***] of the Fees
                                according to the amount billed to the recipients
                                of service (together with Value Added Taxes of
                                the remuneration for marketing services), and
                                the Prepaid Service Fees sold or added
                                (exclusive of Value Added

<PAGE>

                                     - 17 -

                                Taxes) after deduction of the Connecting Fees at
                                the rate of [***] of the Prepaid Service Fees
                                (which is inclusive of Value Added Taxes),
                                Content Service Fees, and Roaming Fees.

               5.1.3.11 In the time period following Clause 5.1.3.8, if the
                        Leasing Company still cannot install and test the
                        equipment and accessories, the test equipment, and RF
                        sub-station system analysis device and all requisites
                        under Clause 16.4 and be ready to provide the service
                        for up to [***] cell sites or more by 30 November 2005,
                        the Parties agree to adjust the remuneration for
                        marketing service payable to the Company under Clause
                        5.1.3.8 [***] to the rate of [***] of the amount billed
                        to the recipients of service (together with Value Added
                        Taxes of the remuneration for marketing services), and
                        the Prepaid Service Fees sold or added (exclusive of
                        Value Added Taxes) after deduction of the Connecting
                        Fees at the rate of [***] of the Prepaid Service Fees
                        (which is inclusive of Value Added Taxes), Content
                        Service Fees, and Roaming Fees, commencing as from 1
                        December 2005 until the Leasing Company can completely
                        install and test the said equipment and accessories, the
                        test equipment, and RF sub-station system analysis
                        device and all requisites and provide the service for up
                        to [***] cell sites or more. However, if during 1
                        December 2005 until the date on which the Leasing
                        Company has completely installed and tested the said
                        equipment and accessories, the test equipment and RF
                        sub-station system analysis device and all requisites
                        and can provide the service up to [***] cell sites or
                        more, the equipment and accessories, test equipment and
                        RF sub-station system analysis device and all requisites
                        under Clause 16.4 which have been installed and tested
                        by the Leasing Company and are in service up to [***]
                        cell sites cannot provide the service for a consecutive
                        period more than 120 days, whether at any one or several
                        cell cites, CAT shall pay remuneration for marketing
                        service to the Company during the period of
                        unavailability of the service at the rate [***] of the
                        Fees according to the amount billed to the recipients of
                        service (together with Value Added Taxes of the
                        remuneration for marketing services), and the Prepaid
                        Service Fees sold or added (exclusive of Value Added
                        Taxes) after deduction of the Connecting Fees at the
                        rate of [***] of the Prepaid Service Fees (which is
                        inclusive of Value Added Taxes), Content Service Fees,
                        and Roaming Fees.

               5.1.3.12 In the case that the equipment and accessories, test
                        equipment and RF sub-station system analysis device and
                        all requisites under Clause 16.4 have been installed and
                        tested by the Leasing Company and are in service up to
                        [***] cell sites but cannot provide the service for a
                        consecutive period more than 120 days, whether at any
                        one or several cell cites, CAT shall pay remuneration
                        for marketing service to the Company during the period
                        of unavailability of the service as follows:

                        (1)     In the case that less than [***] cell sites are
                                in service, CAT shall

<PAGE>

                                     - 18 -

                                pay remuneration for marketing service to the
                                Company at the rate of [***] of the Fees
                                according to the amount billed to the recipients
                                of service (together with Value Added Taxes of
                                the remuneration for marketing services), and
                                the Prepaid Service Fees sold or added
                                (exclusive of Value Added Taxes) after deduction
                                of the Connecting Fees at the rate of [***] of
                                the Prepaid Service Fees (which is inclusive of
                                Value Added Taxes), Content Service Fees, and
                                Roaming Fees.

                        (2)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate of [***] of the Fees
                                according to the amount billed to the recipients
                                of service (together with Value Added Taxes of
                                the remuneration for marketing services), and
                                the Prepaid Service Fees sold or added
                                (exclusive of Value Added Taxes) after deduction
                                of the Connecting Fees at the rate of [***] of
                                the Prepaid Service Fees (which is inclusive of
                                Value Added Taxes), Content Service Fees, and
                                Roaming Fees.

                        (3)     In the case that [***] cell sites or more but
                                less than [***] cell sites are in service, CAT
                                shall pay remuneration for marketing service to
                                the Company at the rate of [***] of the Fees
                                according to the amount billed to the recipients
                                of service (together with Value Added Taxes of
                                the remuneration for marketing services), and
                                the Prepaid Service Fees sold or added
                                (exclusive of Value Added Taxes) after deduction
                                of the Connecting Fees at the rate of [***] of
                                the Prepaid Service Fees (which is inclusive of
                                Value Added Taxes), Content Service Fees, and
                                Roaming Fees.

               5.1.3.13 A prepaid card may only be used for the mobile
                        telephone service under the cellular digital AMPS 800
                        Band A System of CAT within Thailand, and the payment of
                        remuneration for marketing service shall be calculated
                        pursuant to Clauses 5.1.3.9 to 5.1.3.12. In case the
                        Parties desire to allow the use of a prepaid card for
                        International Roaming Services, international call
                        services, or other services of the CAT relating to the
                        mobile telephone service under Digital AMPS 800 Band A
                        of CAT, CAT and the Company shall further enter into a
                        written agreement prescribing the terms of such services
                        and the rate for payment of remuneration for marketing
                        services therefor.

               5.1.3.14 Any Fees which the Company is required to remit to the
                        CAT under Clauses 7.2 and 7.5 for calculation of the
                        remuneration for marketing service under Clause 5.1.3 of
                        this Agreement, and any Fees, which are deemed to belong
                        to the Company and need not be remitted to the CAT nor
                        counted for the calculation of the aforesaid
                        remuneration for marketing service, are to be in
                        accordance with the stipulations by CAT

5.2     CAT shall pay the remuneration, as stipulated in Clause 5.1.2 or Clause
        5.1.3, to the

<PAGE>

                                     - 19 -

        Company in consideration for providing of the Marketing Service of
        Mobile Telephone Under the Cellular Digital AMPS 800 Band A System of
        CAT, together with the Value Added Tax levied on such remuneration which
        CAT is required by law to pay, within three business days of CAT from
        the day following the date on which CAT receives in full each payment of
        the Monthly Service Fees from the Company according to Clause 7.2, or
        from the day following the date on which CAT receives payment of the
        service fees for Prepaid Service according to Clause 7.5 (as the case
        may be). The Company shall simultaneously issue and give to CAT the
        Receipt for such payments together with the Tax Invoice thereof. If CAT
        fails to pay the amount in the said period, the Company can setoff such
        amount against the amount payable or remittable by the Company to CAT
        under this Agreement.

5.3     In case that CAT or the National Telecommunications Board, the Ministry
        of Transport and Communications or any other state entity being
        authorized, entitled or permitted to regulate telecommunications service
        ceases to impose the Access Fee or the Sign-on Fee, or imposes the
        Access Fee at the rate lower than [***] per number per month or higher
        than [***] per number per month, or imposes the Sign-on Fee at the rate
        lower or higher than the rate imposed on the effective date of the
        Agreement Amending the Agreement for Marketing Service of Mobile
        Telephone Under the Cellular Digital AMPS 800 Band A System of CAT No.
        2/2543 dated 16 October 2000, or imposes the Airtime Charges at a rate
        lower or higher than [***] per minute, which will cause the Revenue of
        CAT or the remuneration of the Company hereunder to be reduced or
        increased, whichever the case may be, CAT and the Company will negotiate
        in good faith, with reason, to reach a mutual agreement to decrease or
        increase the Revenue of CAT or the remuneration of the Company as
        justified to both parties.

        In case that CAT ceases to impose, or reduces or increases the rates of
        the Sign-on Fee, the Access Fee and the Airtime Charge under the first
        paragraph as requested by the Company, the Company is not entitled to
        ask CAT to increase its remuneration or to claim any compensation.

5.4     If the Company fails to pay the compensation for Access Fees and/or the
        interest as provided in Clause 4.7, fails to remit performance security
        and/or Sign-on Fee as provided in Clause 7.1, fails to remit Monthly
        Service Fee, Fees, and/or International Call Fees as provided in Clause
        7.2, fails to remit the Prepaid Service Fees under Clause 7.5, or fails
        to pay other expenses or money according to Clauses 16.9, 16.10, 16.11,
        16.12, 16.13, 16.14 and/or 18 or surcharge, penalty, interest or any
        other money to CAT within the period provided in this Agreement, CAT
        shall have the right to setoff such compensation for Access Fees and/or
        any interest or performance security or Sign-on Fees or Monthly Service
        Fees, Fees, International Call Fees and/or Prepaid Service Fees, or
        surcharge, penalty, interest, expenses or any other aforementioned
        money, against the remuneration for marketing service, interest or any
        other money that CAT has to pay to the Company under this Agreement.

5.5     CAT agrees to pay remuneration for marketing service of mobile telephone
        under the Cellular Digital AMPS 800 Band A System of CAT in respect of
        the Sign-on Fees and the Monthly Service Fees accrued before and during
        the month in which the Agreement

<PAGE>

                                     - 20 -

        Amending the Agreement for Marketing Service of Mobile Telephone Under
        the Cellular Digital AMPS 800 Band A System of CAT No. 2/2543 dated 16
        October 2000 becomes effective as follows:

        5.5.1   At the rate of [***] of the Sign-on Fees together with Value
                Added Tax, within 20 (Twenty) days following the date on which
                CAT duly receives such Sign-on Fees from the Company.

        5.5.2   At the rate of [***] of the Monthly Service Fees less Connecting
                Fees and Roaming Fees in respect of the numbers that used the
                service as can be collected by CAT from the users of those
                numbers according to the invoices which CAT issues to them.

                In calculating the above remuneration, the Value Added Taxes on
                the Sign-on Fees and Monthly Service Fees which CAT paid for or
                collected from the recipients of service shall be deducted
                first.

                CAT agrees to pay remuneration for marketing service of mobile
                telephone under the Cellular Digital AMPS 800 Band A System of
                CAT according to the first paragraph and Value Added Tax thereon
                which CAT is liable according to law, and to send a summary
                statement of the Monthly Service Fees already received by CAT to
                the Company within the 20th (Twentieth) day of the month
                following the month in which CAT receives such Monthly Service
                Fees. The Company must issue a receipt for the remuneration
                under Clause 5.5.1 and 5.5.2 as well as a tax invoice to CAT
                simultaneously.

        5.6     CAT agrees to pay remuneration from the Company's collection of
                payment of the International Call Fees at the rate of [***] of
                the International Call Fees according to the amount billed to
                the recipients of service, whether or not the Company receives
                payment from the recipients of service, together with the Value
                Added Tax levied on such remuneration which CAT is required by
                law to pay, within three business days of the CAT from the day
                after date on which CAT receives each monthly payment for the
                International Call Fees pursuant to Clause 7.2 in full. The
                Company shall simultaneously issue and give to CAT the Receipt
                for such payments together with the Tax Invoice thereof. If CAT
                fails to pay the amount in the said period, the Company can
                setoff such amount against the amount payable or remittable by
                the Company to CAT under this Agreement.

CLAUSE 6.  EXECUTION OF THE SERVICE AGREEMENT

6.1     In the case of Postpaid Service, the Company shall require the
        recipients of service to enter into the Service Agreement with CAT in
        accordance with the terms and conditions and at the fee rate which are
        not higher than the rates to be prescribed by CAT, subject to Clause
        9.2. CAT agrees that the Company may print its company name, logo, and
        brand name on the Service Agreement. The Company shall solely bear all
        expenses relating to the printing of the forms of the Service Agreement
        and arrangement for the recipients of

<PAGE>

                                     - 21 -

        service to execute the same with CAT.

        In making the arrangement for the recipients of service to execute the
        Service Agreement with CAT as stipulated in the preceding paragraph, the
        Company shall exercise care in verifying the correctness and genuineness
        of documents provided by the recipients of service for the purpose of
        attaching the same to the Service Agreement, (e.g. the originals and
        copies of the Identification Card, House Registration, Certification
        Document of Juristic Person, etc.) including the capacity of the
        recipients of service in entering into a juristic act and the validity
        and enforcement of the Service Agreement under the law. In the event
        that any such document is forged, altered, false or incorrect in any
        respect, or the recipients of service are incompetent or deficient in
        entering into a juristic act, or the Service Agreement is not valid or
        is not enforceable under the law, and thereby causing CAT in not being
        able to collect the Monthly Service Fees for the use of mobile
        telephones under the Cellular Digital AMPS 800 Band A System,
        International Call Fees and other related service fees payable to CAT
        for the service of mobile telephone under the Cellular Digital AMPS 800
        Band A System of CAT, the Company is always required to remit the
        Monthly Service Fees and International Call Fees to CAT according to
        Clause 7.2 in full, and the Company must be liable in respect of the
        fees for the use of other services of CAT relating to the service of
        mobile telephone under the Cellular Digital AMPS 800 Band A System of
        CAT, which shall be limited only to the amount thereof that cannot be
        collected by CAT exclusive of interest or any other penalty and
        surcharge which CAT is entitled to demand from the recipients of
        service. The Company must pay such fees to CAT within 15 days from the
        date of receipt of written notice from CAT. If the Company fails to do
        so, the Company must pay interest at [***] of such amount to CAT. A
        fraction of a month shall be treated as one month for this purpose.

        The liability of the Company in respect of the fees for the use of other
        services of CAT relating to the service of mobile telephone under the
        Cellular Digital AMPS 800 Band A System of CAT pursuant to the second
        paragraph arises only when CAT has used its best efforts to verify the
        matter and complete the process of investigating, following through, and
        demand collection in full from the service's recipient whose name
        appears in the Service Agreement and has informed the Company of the
        result thereof.

        The Company shall not be liable in respect of the fees for the use of
        other services of CAT relating to the service of mobile telephone under
        the Cellular Digital AMPS 800 Band A System of CAT pursuant to the
        second paragraph if the Company has exercised reasonable care in
        verifying the correctness and genuineness of the documents provided by
        the recipients of service for the purpose of attaching the same to the
        Service Agreement at the same level that other reasonable persons in the
        same business would do.

6.2     The Company shall send to CAT 1 original of the Service Agreement
        together with 1 duplicate copy thereof and supplementary documents
        thereto, made with each of the recipients of service, within the 15th
        (Fifteenth) day of the month following the month in which the said
        Service Agreement was entered into. In the event of modification,
        amendment or addition to the Service Agreement and/or any supplementary
        document thereto, the Company shall send to CAT an original and a
        duplicate copy of the Service

<PAGE>

                                     - 22 -

        Agreement and/or any supplementary document bearing such modification,
        amendment or addition within the 15th (Fifteenth) day of the month
        following the month in which such modification, amendment or addition
        was made.

6.3     The Service Agreement shall stipulate that in case the Service Agreement
        is terminated or extinguished, the Company must be responsible to return
        the performance security to the recipient of service after deduction of
        his outstanding debt (if any) meanwhile CAT will not have any
        responsibility therefor.

CLAUSE 7.  COLLECTION AND REMITTANCE OF PERFORMANCE SECURITY, SIGN-ON FEES,
           FEES, MONTHLY SERVICE FEES, PREPAID SERVICE FEES, AND INTERNATIONAL
           CALL FEES

7.1     The Company shall collect the performance security, the Sign-on Fees,
        and Fees, at the rates prescribed by CAT subject to Clause 9.2. The
        Company shall issue receipts and tax invoices therefor on behalf of CAT.
        CAT hereby agrees to appoint the Company to act as its agent to issue
        such receipts and tax invoices on its behalf CAT. The Company shall,
        within the 15th (fifteenth) day of each month following the month in
        which the said Service Agreements were executed, send to CAT the amounts
        equal to [***] of the performance security and the Sign-on Fees,
        together with the originals and duplicate copies of the Service
        Agreements and the supplementary documents of respective recipients of
        service as stipulated in Clause 6.2.

        Should the Company fail to remit the performance security and/or the
        Sign-on Fees to CAT within the period stipulated in the first paragraph,
        the Company shall pay a surcharge at the rate of [***] on the
        outstanding amount(s) of the performance security and/or the Sign-on
        Fees. A fraction of a month shall be treated as one month for this
        purpose.

        Subject to Clause 6.3, the Company is entitled to retain and utilize the
        balance of the performance security equal to [***] thereof and shall not
        be obliged to pay any interest thereon or other payments to CAT. In the
        event that there is the interest on the performance security payable to
        the recipient of service, CAT shall bear the interest in respect of the
        portion of [***] of the performance security and the Company shall bear
        the interest in respect of the portion of [***] of the performance
        security.

        In every three-month period, CAT shall remit the amount of [***] of the
        performance security to the Company in respect of the Service Agreement
        terminated or extinguished during the said three months in order that
        the Company shall setoff this amount against the amount unpaid by,
        and/or return this amount to, the recipients of service. If CAT fails to
        remit this amount to the Company, the Company shall have the right to
        setoff this amount against the sum remittable or payable by the Company
        to CAT under this Agreement.

7.2     In providing the Postpaid Service, CAT agrees to have the Company print
        and send the invoices to the recipients of service on behalf of CAT and
        collect from the recipients of services the Monthly Service Fees, Fees
        and International Call Fees at the rate prescribed

<PAGE>

                                     - 23 -

        by CAT (subject to Clause 9.2) on behalf of CAT as well as to issue the
        receipts on behalf of CAT. CAT hereby agrees to appoint the Company to
        act as its agent to issue the receipts for the Monthly Service Fees,
        Fees and International Call Fees paid by the recipients of service, on
        behalf of CAT. CAT further agrees to authorize the Company to make the
        demand, take legal action, and file lawsuits against the recipients of
        service for all the debts arising from the Monthly Service Fees, Fees
        and International Call Fees unpaid by the recipients of service in the
        name of the Company. The Company shall be responsible for all lost debts
        in respect of the said Monthly Service Fees, accrued as from the
        effective date of the Amendment to the Agreement for Marketing Service
        of Mobile Telephone Under the Cellular Digital AMPS 800 Band A System of
        CAT, No. 2/2543 dated 16 October 2000. The Company shall remit the said
        Monthly Service Fees to CAT according to the third paragraph in full.
        The Company agrees to assist CAT in demanding and taking legal actions
        on behalf of CAT from and against the recipients of service who have the
        outstanding debts prior to the effective date of the Amendment to the
        Agreement for Marketing Service of Mobile Telephone Under the Cellular
        Digital AMPS 800 Band A System of CAT, No. 2/2543, dated 16 October
        2000, provided that the foregoing shall be limited only to the
        recipients of service who have outstanding debts as from the effective
        date of the Amendment to the Agreement for Marketing Service of Mobile
        Telephone Under the Cellular Digital AMPS 800 Band A System of CAT, No.
        2/2543 dated 16 October 2000. The Company shall be responsible for all
        lost debts in respect of Fees and International Call Fees, accrued as
        from the effective date of this Amendment to the Agreement for Marketing
        Service of Mobile Telephone Under the Cellular Digital AMPS 800 Band A
        System of CAT, No. 3/2543, dated ..... August 2003. The Company shall
        remit the said Fees and International Call Fees to CAT in full. All
        expenses incurred from taking all of the said actions shall be borne by
        the Company.

        CAT agrees that the Company may print its name, logo, and brand name on
        such invoices and agrees to assign all claims it is entitled to against
        recipients of service who fail to pay when due the Monthly Service Fees,
        Fees, and International Call Fees to the Company so as to enable the
        Company in its name to demand and take legal actions and enforcements
        against such recipients on behalf of CAT. The Value Added Tax, if any,
        as a result of such assignment shall be borne by the Company. The
        Company shall remit to CAT the Monthly Service Fees, Fees, and
        International Call Fees in the full amount billed to the recipients of
        service as shown on the invoices, irrespective of whether the Company
        can collect the same from the recipients of service or not, as follows:

        (1)     At [***] of the total amount of the said Monthly Service Fees
                and International Call Fees within 30 days from the invoice
                date, and at [***] of total amount of the Fees within 30 days
                from the invoice date or the 15th day of the month following the
                month of collection thereof, as the case may be.

        (2)     At [***] of the total amount of the said Monthly Service Fees,
                Fees, and International Call Fees within 30 days following the
                due date under (1).

        (3)     At [***] of the total amount of the said Monthly Service Fees,
                Fees, and

<PAGE>

                                     - 24 -

                International Call Fees within 30 days following the due date
                under (2).

        Should the Company fail to remit the Monthly Service Fees and the
        International Call Fee in the full amount billed to the recipient of
        service as shown on the invoices, and the Fees in the full amount stated
        in the invoices or collected from the recipients of service, within the
        period indicated in the third paragraph, the Company must pay the
        interest to CAT at the rate of [***] of the outstanding amount of such
        Monthly Service Fees, Fees, and International Call Fees. A fraction of a
        month shall be treated as one month for this purpose.

        The Company shall remit to CAT all of the Value Added Tax collected from
        the recipients of service in each month within the 10th day of the
        following month. If the Company fails to remit such Value Added Tax to
        CAT within the said period, the Company must be liable to pay to CAT in
        full any surcharge, penalty, interest, or any other money for which the
        Revenue Department requires CAT to be liable, together with an interest
        at the rate of [***] on the amount of such surcharge, penalty, interest,
        or any other money. A fraction of a month shall be treated as one month
        for this purpose.

        The provisions in this Clause shall not be prejudicial to the right of
        CAT to terminate this Agreement in accordance with Clause 13.

7.3     Subject to Clause 9.2, should the Company impose the performance
        security, Sign-on Fees, Fees, Monthly Service Fees, and/or International
        Call Fees at any rate(s) which differs from the rate(s) that CAT
        requires the Company to collect pursuant to Clauses 7.1 and 7.2, whether
        or not higher or lower than the rate prescribed by CAT, the Company
        consents to pay to CAT a penalty equal to 2 (two) times of the sum so
        varied from such rate(s) stipulated by CAT, which such penalty shall be
        paid by the Company to CAT within 15 (fifteen) days from the date of
        being notified by CAT thereof in writing. The Company shall, within 7
        (seven) days from the date of a written notice thereof from CAT,
        return/refund the portion of the sum(s) representing the performance
        security, Sign-on Fees, Fees, Monthly Service Fees and/or International
        Call Fees which was/were imposed higher than such rate(s) prescribed by
        CAT, to recipients of service. The provisions in this Clause shall not
        be prejudicial to the right of CAT to terminate this Agreement in
        accordance with Clause 13.

7.4     The Company shall not be entitled to collect any other sum from the
        recipients of service other than the performance security, Sign-on Fees
        and Fees pursuant to Clause 7.1, Monthly Service Fees and/or
        International Call Service Fees pursuant to Clause 7.2. Should the
        Company be in breach of this Clause, the Company consents to pay to CAT
        a penalty equal to 10 (ten) times of any such sum collected by the
        Company, which such penalty shall be paid by the Company to CAT within
        15 (fifteen) days from the date of being notified by CAT thereof in
        writing. The Company shall also return/refund the sum which was
        unrightfully collected, to the recipients of service within 7 (seven)
        days from the date of being notified by CAT thereof in writing. The
        provisions in this Clause shall not be prejudicial to the right of CAT
        to terminate this Agreement in accordance with Clause 13.

<PAGE>

                                     - 25 -

        In the case that the Company is an agent to accept, or provides the
        service of accepting, payments for or on behalf of distributors or
        service providers other than CAT, the Company is entitled to collect any
        price, fee or charge for the purchase of such goods or services from the
        recipients of the service of mobile telephone under the Cellular Digital
        AMPS 800 Band A System of CAT under this Agreement.

7.5     In the case of Prepaid Service, the Company agrees to buy from CAT
        prepaid cards which have been procured by CAT or the Company under
        Clause 2.3 for distribution to distributors procured by the Company,
        recipients of services, or general public.

        The Company shall send to CAT the report of receiving goods - prepaid
        cards for CAT to issue the invoices for Prepaid Service Fees, receipts
        and tax invoices to the Company according to the types, number and price
        of the prepaid cards bought from CAT.

        In adding the Prepaid Service Fees, the Company shall send to CAT a
        report summarizing the payments of Prepaid Service Fees received within
        the next business day after the date of receipt of such payments.

        The Company shall sell prepaid cards to distributors, recipients of
        services or general public and charge the Prepaid Service Fees and Fees
        at the rate fixed by CAT (subject to Clause 9.2). All expenses incurred
        in taking actions as stated in this Clause shall be borne by the
        Company.

        The Company must remit to CAT the Prepaid Card Service Fees and Fees,
        irrespective of whether the Company can collect these fees from
        distributors, the recipients of service, or general public or not, as
        follows:

        (1)     At [***] of the total value of Prepaid Service Fees that have
                been sold or added in each month within 30 days from the last
                day of that month, and [***] of all Fees within 30 days from the
                invoice date or within the 15th day of the month following the
                month of collection thereof, as the case may be.

        (2)     At [***] of the total value of Prepaid Service Fees that have
                been sold or added and Fees within 30 days from the due date
                under (1).

        (3)     At [***] of the total value of Prepaid Service Fees that have
                been sold or added and Fees within 30 days from the due date
                under (2).
        Should the Company fail to remit the total value of Prepaid Service Fees
        that have been sold or added and Fees to CAT within the period provided
        in the first paragraph, the Company must pay the interest to CAT at the
        rate of [***] of such Prepaid Service Fees and Fees which remain
        outstanding. A fraction of a month shall be treated as a month for this
        purpose.

        The Company shall remit to CAT all Value Added Taxes collected for
        Prepaid Service Fees and Fees within the 10th day of the following
        month. If the Company fails to remit the Value Added Tax to CAT within
        such period, the Company will be fully liable to pay to CAT the
        surcharge, penalty, interest, or any other money that the Revenue
        Department

<PAGE>

                                     - 26 -

        requires CAT to pay, together with interest at [***] of the amount of
        the surcharge, penalty, interest, or any other money. A fraction of a
        month shall be treated as a month for this purpose.

        The stipulations of this Clause shall not affect the right of CAT to
        terminate this Agreement in accordance with Clause 13.

7.6     In providing Content Services in the case of Postpaid Service where the
        content provider is a third party and the Company is responsible for the
        Content Service Fees of such content provider, the Company shall prepare
        and send a report on fees concerning the use of content charged by CAT
        to the recipients of services within 5 days from the date of issuing the
        invoices. Once CAT has verified that it is correct, CAT shall pay the
        Content Service Fees and Value Added Taxes thereof (in case CAT is
        required by law to pay) to the Company, within three business days of
        CAT from the day following the date on which CAT receives in full each
        payment of the Monthly Service Fees from the Company according to Clause
        7.2

        In the case of Prepaid Service, the Company shall prepare and send a
        monthly report on fees concerning the use of content charged by CAT to
        the recipients of services within 5 days from the end of the month in
        which such content services are used. Once CAT has verified that it is
        correct, CAT shall pay the Content Service Fees and Value Added Taxes
        thereof (in case CAT is required by law to pay) to the Company, within
        three business days of CAT from the day following the date on which CAT
        receives in full each payment of the Monthly Service Fees from the
        Company according to Clause 7.5

        The Company shall simultaneously issue and give to CAT the receipt for
        payments of such Content Service Fees together with the tax invoice
        thereof (if any). If CAT fails to pay the amount in the said period, the
        Company can setoff such amount against the amount payable or remittable
        by the Company to CAT under this Agreement.

CLAUSE 8.  JOINT UTILIZATION OF CAT DATA SYSTEM; OPENING, SUSPENSION AND
           CANCELLATION OF SERVICES.

8.1     In order to facilitate the rendering of services to the recipients of
        service of CAT, CAT agrees for the Company, for the purpose of the
        Company providing marketing service under Clause 2, to share with CAT of
        the use of CAT Data System relating to the mobile telephone services
        under the Cellular Digital AMPS 800 Band A System of CAT. The opening,
        suspension and cancellation of service of the mobile telephone under the
        Cellular Digital AMPS 800 Band A System of CAT shall be in accordance
        with the rules which CAT and the Company will agree further.

        In the case that the Company keys data for opening, suspending or
        canceling the service, the Company must be responsible for damage arisen
        from such keying of the data by the Company to recipient of service or
        third party under which CAT shall not be liable at all, and if the
        recipient of service or third party claim or sue CAT to be liable for
        such keying of data by the Company, the Company must undertake in any
        way to protect CAT from being liable including defending CAT and
        indemnify CAT for any expenses or damage suffered by CAT as a result of
        such claim or litigation.

<PAGE>

                                     - 27 -

8.2     The Company shall entirely be responsible, at its own expenses, for
        procurement of equipment and accessories for the purposes of connecting
        the line with and transmitting the data to and from CAT Data System as
        stipulated in Clause 8.1. The Company must key the data for receipt of
        the payment for the Monthly Service fees into the system of CAT in
        accordance with the rules that CAT and the Company shall consider and
        agree later.

8.3     CAT shall process the data in relation to the use of service and deliver
        it to the Company for printing of the invoices by the 5th business day
        of each billing cycle date(s) nominated by the Company and notified to
        CAT.

8.4     CAT and the Company shall negotiate in good faith an arrangement for
        data input to, and information access and report generation from, CAT
        Data System in order to meet the requirements of the marketing
        activities of the Company. CAT and the Company shall co-operate to
        ensure that the CAT Data System meets the requirements of the Company
        from time to time. If circumstances arise where those requirements are
        not being reasonably met, CAT and the Company will negotiate to find a
        viable commercial solution.

CLAUSE 9.  MARKETING PLAN

9.1     The Company shall, as its entire expense, organize appropriate
        activities relating to the marketing, advertisements, public relations
        and sale promotion to be in accordance with marketing target.

9.2     The Company shall submit to CAT the marketing promotion plan, strategic
        plan and marketing plan within 7 (Seven) days from the date of
        implementation of such plans. If CAT finds that the said marketing
        promotion plan, strategic plan and marketing plan are not suitable for
        whatsoever reason, the Company shall, upon notification being made by
        CAT, expeditiously consider improving such marketing promotion plan,
        strategic plan and marketing plan to a suitable manner.

        In order for the Company to conduct the marketing activities efficiently
        and competitively in the business which will bring mutual benefit to
        both Parties, CAT agrees that the Company can cease charging or reduce
        the rates of the Access Fee, Airtime Charges, Sign-on Fees and
        performance security for the Service Agreement to be payable by the
        recipient of the service but such rates must not be higher than the
        rates imposed by the regulations and orders of CAT. If the Company plans
        to offer additional services relating to the mobile telephone under the
        Cellular Digital AMPS 800 Band A System, the Company shall propose them
        and ask CAT to impose the fees for such services.

CLAUSE 10. RESTRICTION ON THE IMPOSITION OF COST FOR NUMBER MARKETED BY THE
           COMPANY

In providing the Marketing Service of Mobile Telephone Under the Cellular
Digital AMPS 800 Band A System of CAT under this Agreement, the Company shall
not impose on any person any

<PAGE>

                                     - 28 -

cost for the number marketed by the Company.

CLAUSE 11. PERFORMANCE SECURITY

11.1    Within 20 days from the effective date of the Agreement Amending the
        Agreement for Marketing Service of Mobile Telephone Under the Cellular
        Digital AMPS 8999 Band A System of CAT No. 2/2543 dated 16 October 2000,
        the Company shall provide CAT with a Letter of Guarantee issued by a
        bank in Thailand in the amount of [***], as a security for its
        performance under this Agreement. CAT shall surrender such performance
        security to the Company upon the termination of this Agreement provided
        the Company has duly complied with this Agreement in all respects and
        has no indebtedness which is due and unpaid to CAT.

11.2    In case the Company is in breach of any stipulations of this Agreement
        and CAT has sustained damage thereby, the Company consents for CAT to
        claim from the bank issuing the Letter of Guarantee under Clause 11.1
        and/or Clause 11.3 whether in whole or in part, to cover damage actually
        sustained by CAT. The Company shall thereby provide CAT, within 15
        (Fifteen) days of the date of being notified by CAT in writing, with
        another Letter of Guarantee of any reliable bank in Thailand in a full
        amount as required in Clause 11.1 and/or Clause 11.3.

11.3    As a security for its performance under Clauses 4.5, 4.6, 4.7, 7.1, 7.2,
        7.5, 16.9, 16.10, 16.11, 16.12, 16.13, 16.14, and 18, the Company shall
        provide CAT with Letters of Guarantee issued by a bank in Thailand as
        follows:

        11.3.1   Year 1 (1 October 2000 to 30 September 2001) is [***].

        11.3.2   Year 2 (1 October 2001 to 30 September 2002) is [***].

        11.3.3   Year 3 (1 October 2002 to 30 September 2003) is [***].

        11.3.4   Year 4 (1 October 2003 to 30 September 2004) is [***].

        11.3.5   Year 5 (1 October 2004 to 30 September 2005) is [***].

        11.3.6   Year 6 (1 October 2005 to 30 September 2006) is [***].

        11.3.7   Year 7 (1 October 2006 to 30 September 2007) is [***].

        11.3.8   Year 8 (1 October 2007 to 30 September 2008) is [***].

        11.3.9   Year 9 (1 October 2008 to 30 September 2009) is [***].

        11.3.10  Year 10 (1 October 2009 to 30 September 2010) is [***].

        11.3.11  Year 11 (1 October 2010 to 30 September 2011) is [***].

<PAGE>

                                     - 29 -

        11.3.12  Year 12 (1 October 2011 to 30 September 2012) is [***].

        11.3.13  Year 13 (1 October 2012 to 30 September 2013) is [***].

        11.3.14  Year 14 (1 October 2013 to 30 September 2014) is [***].

        11.3.15  Year 15 (1 October 2014 to 21 April 2015) is [***].

11.4    The Company must provide CAT with a Letter of Guarantee issued by a bank
        in Thailand as approved in writing by CAT according to Clause 11.3
        within 15 (fifteen) days from the commencement date of each of the 2nd
        to 15th years, except the Letter of Guarantee of the 1st year shall be
        provided to CAT within 20 days from the effective date of the Agreement
        Amending the Agreement for Marketing Service of Mobile Telephone Under
        the Cellular Digital AMPS 800 Band A System of CAT No. 2/2543 dated 16
        October 2000. CAT shall surrender such performance security to the
        Company when the Company has fully complied with Clauses 4.5, 4.6, 4.7,
        7.1, 7.2, 7.5, 16.9, 16.10, 16.11, 16.12, 16.13, 16.14 and 18, and there
        are no outstanding debts under such Clauses payable to CAT.

CLAUSE 12. PENALTY

12.1    Should the Company be in breach of any or all of the conditions
        stipulated in Clauses 10, 14.1, 14.3 and 14.4 of this Agreement, the
        Company consents to pay CAT a daily penalty in the amount of Baht 5,000
        (Five thousand Baht) per day commencing from the date on which the
        Company committed such breach until the date on which the Company shall
        be able to duly rectify the same or the date on which CAT shall
        terminate this Agreement in accordance with the stipulations of
        paragraph 2 of this Clause, as the case maybe. If it appears to CAT,
        during the period on which the penalty is imposed under the preceding
        paragraph, that the Company does not duly rectify the breach within the
        reasonable period of time, CAT shall be entitled to terminate this
        Agreement and to exercise the right to claim in accordance with Clause
        13 as CAT deems it appropriate.

12.2    The imposition of penalty under Clause 12.1 shall not prejudice the
        right of CAT to claim for compensation due to any breach by the Company
        of this Agreement.

CLAUSE 13. TERMINATION

13.1    If the Company or i-MOBILE HOLDINGS COMPANY LIMITED becomes a bankrupt
        or is subject to the order of the Court for the absolute receivership,
        CAT has the right to immediately terminate this Agreement forthwith or
        if the Company or i-MOBILE HOLDINGS COMPANY LIMITED is in breach of any
        stipulations of this Agreement, or if i-MOBILE HOLDINGS COMPANY LIMITED
        is in breach of any stipulations of the Shareholders Agreement of
        HUTCHISON CAT WIRELESS MULTIMEDIA COMPANY LIMITED, a copy of which is
        attached hereto and referred to in Clause 15.2, CAT is entitled to
        terminate this Agreement, provided, however, that if any of the
        above-mentioned

<PAGE>

                                     - 30 -

        breaches are capable of being rectified, CAT shall first serve a written
        warning to demand any of the Company, or i-MOBILE HOLDINGS COMPANY
        LIMITED to duly rectify such breaches within 90 (Ninety) days from the
        date of being notified by CAT. Should the Company, or i-MOBILE HOLDINGS
        COMPANY LIMITED fail to rectify the breach within such period, CAT is
        entitled to immediately terminate this Agreement.

        If the Company does not commence the installation of the equipment and
        accessories and test equipment and RF system analysis device including
        spare parts thereof in Clause 16.1 by 31 August 2000 or fails to
        complete the procurement, installation, test, and transfer of title in
        the equipment and accessories and test equipment and RF system analysis
        device including spare parts thereof, and be ready to provide service up
        to [***] cell sites to CAT according to Clause 16.1 by 30 November 2000,
        CAT may terminate this Agreement immediately.

        In case CAT exercises the right to terminate this Agreement as
        stipulated in the first paragraph, the Company consents for CAT to claim
        from the bank issuing the Letter of Guarantee under Clause 11, whether
        in whole or in part, as CAT deems it appropriate. If the said security
        is insufficient to pay the indebtedness, the Company shall pay the
        balance thereof to CAT in full, and shall consent for CAT to claim for
        other compensation which may be incurred through the breach by the
        Company of this Agreement."

13.2    If CAT finds it necessary, or upon the expiry of this Agreement, or upon
        the earlier termination of this Agreement, the Company shall provide CAT
        with information and data relating to the Marketing Service of Mobile
        Telephone Under the Cellular Digital AMPS 800 Band A System of CAT
        including marketing data and any related data which were implemented
        during the validity of this Agreement.

CLAUSE 14. GENERAL PROVISIONS

14.1    The Company shall comply with the conditions stipulated in the
        Shareholders Agreement of HUTCHISON CAT WIRELESS MULTIMEDIA COMPANY
        LIMITED, which is attached hereto and referred to in Clause 15.2.

14.2    If the Company shall be dissolved at any time during the duration
        stipulated in Clause 3, both Parties agree that this Agreement shall be
        revoked, suspended or terminated accordingly.

14.3    From the date of signing this Agreement and throughout the term, the
        Company shall be subjected to the following conditions:

        14.3.1  The shareholders of the Company who have Thai nationality must
                hold shares of the Company in the amount which not less than the
                amount fixed by the Ministry

<PAGE>

                                     - 31 -

                of Transport and Communications, or any state entity who has the
                duty to regulate telecommunications business.

        14.3.2  In case any shareholder of the Company under Clause 14.3.1 is a
                juristic person, it shall be the juristic person incorporated in
                Thailand and have not less than 51 (Fifty one) percent of all
                the shareholders being Thai nationals and not less than 51
                (Fifty one) percent of the total number of shares and its total
                share capital held by Thai nationals. In case such juristic
                person is a limited company, the Share Certificates issued to
                bearers shall be deemed as shares held by foreigners, and in
                case such juristic person is a limited partnership or a
                registered ordinary partnership, its Managing Partner or Manager
                must be of Thai nationality.

14.4    The Company shall not assign its rights and/or obligations under this
        Agreement to any third party unless a prior written consent is given by
        CAT.

        The assignment of rights and obligations for the benefit of a bank
        and/or finance company lending or granting credit to the Company for its
        procurement and installation of equipment and accessories, buildings and
        other items required for the operation of the Company under this
        Agreement, or the juristic entity selling or providing service or
        telecom technology who grants financial support to the Company shall be
        permitted and valid when the Company is demanded by such bank or finance
        company or the juristic entity selling or providing service or telecom
        technology who grants financial support to the Company to pay all the
        indebtedness owing to any of them under the Loan Agreement or Credit
        Facility Agreement but the Company is unable to pay all such
        indebtedness within a period stipulated under the said Loan Agreement or
        Credit Facility Agreement. In such event, the Company shall immediately
        inform CAT in writing of the said assignment of rights and obligations.
        CAT shall be the person who considers granting approval of the
        qualifications of the juristic person to be designated by the bank or
        finance company or the juristic entity selling or providing service or
        telecom technology who grants financial support to the Company, and such
        juristic person that will accept the assignment of the rights and
        obligations hereunder shall be an entity established and registered in
        Thailand and subject to conditions in Clause 14.3.

        The assignment of rights and obligations shall not, in all cases,
        release the Company from its liability under this Agreement, and the
        Company thereby agrees for CAT to claim for compensation for damages
        incurred by the failure of the Company to comply with this Agreement
        prior to the assignment including for the acts of or the non-compliance
        by the assignee subsequent to the assignment as if it were the act done
        by the Company. The assignment of rights and obligations under this
        Agreement shall be made by an assignment agreement to be entered into
        among the Company, the assignee and CAT, and the assignee shall thereby
        be bound to comply with the stipulations of this Agreement.

14.5    The operation and the marketing service as stipulated under this
        Agreement shall be subjected to the supervision by CAT. The Company
        consents for CAT officer or any person entrusted by CAT to inspect its
        operation and marketing service under this Agreement. The Company shall,
        upon notification to be given by CAT in advance,

<PAGE>

                                     - 32 -

        provide data and information, as CAT deems it appropriate, for access
        and inspection by CAT officer or any person entrusted by CAT throughout
        its normal working hours. The Company shall use its best endeavor to
        facilitate the conduct of such CAT officer or person entrusted by CAT.

        To enable CAT to participate in the operation and to orientate itself to
        the business management of the Company, the Company agrees that CAT can
        send CAT officer to join as members in the Company's administrative,
        managerial and service operational levels, and the Company shall,
        throughout the term of this Agreement, bear all costs relating to
        expenses, salary, wage, overtime payment, bonus and other welfare and
        money for such CAT officer. CAT and the Company shall jointly fix the
        direction and duration of service, position, number of staffs and other
        conditions as CAT and the Company deem it appropriate.

14.6    Except for liability to the Value Added Tax as stipulated in Clauses
        5.1, 5.2 and 21 the Company shall be responsible for payment of taxes
        and/or any fees legally incurred by the entering into this Agreement
        including the Value Added Tax for which CAT and the Company are legally
        required or obligated to pay.

14.7    The Company shall duly operate as stipulated under this Agreement and as
        provided under the law. The Company is restricted to secure benefits in
        the manners which may be harmful to the society or national stability or
        place or be contrary to public order or good morals or be illegal or be
        in violation of the resolution of the Cabinet or of the policy,
        regulations, rules, orders or notifications of CAT.

14.8    This Agreement shall be construed in accordance with the law of
        Thailand. The interpretation of any question arisen out of this
        Agreement or any documents relating to the same, shall be made in
        accordance with the law of Thailand.

14.9    Settlement of Dispute by Arbitration.

        CAT and the Company agree to have any dispute between them settled in
        accordance with the following:

        14.9.1  The dispute or conflict between the Parties in relation to the
                stipulations of or the compliance with this Agreement which
                cannot be settled shall be referred to arbitration.

        14.9.2  Unless the Parties agree that the arbitration be conducted by
                one arbitrator, the settlement of dispute shall be made by 2
                (Two) arbitrators. Any party shall make a notice in writing to
                the other party to express its intention to have the dispute
                settled by arbitration and shall specify therein the name of
                arbitrator appointed by it. The party receiving such notice
                shall, within 30 (Thirty) days from the date of being notified
                thereof, appoint the second arbitrator. If the said two
                arbitrators cannot settle the dispute within 30 (Thirty) days,
                such arbitrators shall jointly, within 7 (Seven) days from the
                date of not being able to render an award, appoint

<PAGE>

                                     - 33 -

                an umpire, and such umpire shall then consider and settle the
                dispute. The arbitration proceedings shall be conducted in
                Bangkok Metropolis, Thailand in accordance with the UNCITRAL
                Arbitration Rules or any other Rules agreed upon by the Parties.

        14.9.3  In case that any party did not appoint the arbitrator or the two
                arbitrators cannot jointly agree on the appointment of the
                umpire, each of the Parties shall be entitled to request the
                Director of the Arbitration Office, Ministry of Justice to
                appoint the arbitrator or umpire, as the case may be.

        14.9.4  The award rendered by the arbitrators or umpire, as the case may
                be, shall be deemed final and shall have a binding effect upon
                the Parties.

        14.9.5  Each of the Parties shall bear the fees of its own arbitrator
                and shall equally bear the expenses for the arbitration
                proceedings. In case of making an appointment of the sole
                arbitrator or the umpire, such arbitrator or umpire shall fix
                the fee payable to him.

        14.9.6  While the dispute is still under arbitration proceedings, CAT
                and the Company shall continue to comply with the stipulations
                of this Agreement until the arbitration award is rendered.

14.10   All notices, reports, correspondence and requests under this Agreement
        shall be made in writing in Thai and shall be delivered to the Parties
        at the respective addresses hereinbelow stipulated, or any other address
        notified by one party to the other in writing from time to time. The
        notices, reports, correspondences or requests shall be deemed effective
        on the date on which the Company and/or CAT receives the same
        notwithstanding the date specified therein.

        14.10.1         Address of CAT:
                        THE COMMUNICATIONS AUTHORITY OF THAILAND
                        No. 99, Mu 3, Chaeng Watthana Road
                        Kwaeng Thung Song Hong, Khet Laksi
                        Bangkok Metropolis 10002

        14.10.2         Address of the Company:
                        HUTCHISON CAT WIRELESS MULTIMEDIA COMPANY LIMITED
                        1768 IFCT Tower Floor 23rd Floor,
                        New Petchburi Rd., Kwaeng Huay Kwang,
                        Khet Bangkapi, Bangkok 10320"

14.11   CAT agrees that all notices, reports, correspondences and requests to be
        sent to Hutchison CAT Wireless MultiMedia Company Limited under Clause
        14.10 in respect of the breach of the Agreement or remedy of the default
        or termination of this Agreement

<PAGE>

                                     - 34 -

        shall sent with copies by fax and registered mail at the address below.
        The date that such notices, reports, correspondences and requests to
        Hutchison CAT Wireless MultiMedia Company Limited shall be deemed
        effective shall be the date as provided in Clause 14.10. And the sending
        of the copies to the address specified in this Clause shall have no
        legal effect on the sending of notices, respects, correspondences and
        requests in Clause 14.10.

                        Hutchison Whampoa Agency Limited
                        22 Floor, Hutchison House
                        10 Harcourt Road, Central
                        Hong Kong
                        Fax no. 582 2128 1778
                        Attn: Company Secretary

                        And

                        Hutchison Telecommunications International Limited
                        18/Fl, Two Harbourfront
                        22 Tak Fung Street,
                        Hung Hom,
                        Kawloon, Hong Kong
                        Fax no. 852 2827 1371"

14.12   The Company shall not permit any third party to perform, in its place or
        stead and whether in whole or in part, its obligations under this
        Agreement unless a consent in writing is given by CAT.

14.13   Except for the execution of the Service Agreement with the recipients of
        service as stipulated in Clause 6.1, the Company shall, in its name, be
        responsible to operate or conduct the marketing service under this
        Agreement whether in administration, seeking recipients of service,
        advertisement or entering into any juristic acts with third parties, CAT
        shall not in any way be liable to any or all of the Company's operation
        or marketing, the Company shall take whatsoever measure to prevent CAT
        from being liable thereto including to defend and litigate on CAT's
        behalf and to compensate CAT for any expenses or damage sustained by CAT
        from such claim or lawsuit.

14.14   CAT reserves the right to assign rights and/or obligations under this
        Agreement to other juristic entity established to undertake the
        telecommunications business under the Act, and it shall be deemed that
        the Company agrees and consents to such assignment unconditionally. CAT
        shall inform the Company in writing of such assignment of rights and/or
        obligations.

        In the case CAT is transformed or converted to a new juristic entity,
        the Company agrees and consents that all rights and/or obligations of
        CAT under this Agreement shall be assigned to such new juristic entity
        for undertaking the relevant business under this Agreement.

<PAGE>

                                     - 35 -

        The Company agrees and consents to waive the right to challenge, object
        or claim from such assignment of right and/or obligations in the first
        and second paragraphs and agrees to consent to such assignment of rights
        and/or obligations under this Agreement to the new juristic entity in
        the first and second paragraphs.

14.15   CAT agrees that even though CAT transfers all or part of the shares that
        CAT holds in the Company, CAT shall assist and support the Company in
        respect of technical aspect of the service of mobile telephone under the
        Cellular Digital AMPS 800 Band A System of CAT under this Agreement for
        the entire period in Clause 3.

14.16   In case that either party is unable to perform in accordance with this
        Agreement within the period prescribed herein due to Force Majeure, such
        party shall not be deemed to be in breach of the Agreement and the
        period of performance of such party shall be extended equal to the
        duration of such Force Majeure.

14.17   If Cat fails to pay the remuneration for marketing service to the
        Company within the period of time under Clause 5.1.1 or Clause 5.2, or
        the performance security within the period of time under Clause 7.1,
        paragraph four, CAT shall pay interest to the Company at the rate of
        [***] of the outstanding amount. A fraction of one month shall be
        treated as a month. However, this shall be without prejudice to the
        Company's right to offset such remuneration for marketing service or
        performance security against the sum which the Company must remit or pay
        to CAT under this Agreement.

CLAUSE 15. ATTACHMENTS

The following documents are attached hereto and shall be deemed as part hereof:

15.1    The Certification Document (Affidavit) of HUTCHISON CAT WIRELESS
        MULTIMEDIA COMPANY LIMITED issued by the Partnerships and Companies
        Registration Office, Bangkok Metropolis; and

15.2    Copy of the Shareholders Agreement of HUTCHISON CAT WIRELESS MULTIMEDIA
        COMPANY LIMITED dated 16 October 2000 between CAT and i-Mobile Holdings
        Company Limited.

15.3    Technical specifications and Operation Plan.

15.4    Guideline for Inspection and Acceptance of Cell Site Equipment and
        Accessories.

In the event of any conflict between any of the said Attachments and the
stipulations of this Agreement, this Agreement will govern.

CLAUSE 16. PROVISIONS OF EQUIPMENT AND ACCESSORIES FOR THE CELL SITES

16.1    The Company shall, at its entire expenses, improve and increase the
        efficiency and capacity of the Cellular Digital AMPS 800 Band A System
        of CAT by procuring

<PAGE>

                                     - 36 -

        equipment and accessories for [***] cell sites on top of CAT existing
        cell sites in a total of [***] cell sites, together with the equipment
        and accessories for the provisions of additional services relating to
        the mobile telephone under the Cellular Digital AMPS 800 Band A System
        and the test devices as well as spare parts of the said equipment,
        accessories and test devices in conformity with details in the Company's
        Technical Specification and Operation Plan, attached hereto and referred
        to in Clause 15.3, in full condition ready for service. The equipment
        and accessories test equipment and RF sub-station system analysis device
        as well as spare parts thereof to be procured by the Company shall be
        brand new and unused and shall not be old stocks, and must be owned by
        the Company.

        The Company agrees to transfer the title in all the equipment and
        accessories, test equipment and RF sub-station system analysis device as
        well as spare parts thereof, as mentioned in the preceding paragraph
        one, which are owned by the Company to CAT site by site as from the date
        on which the Company completes the installation of such equipment and
        accessories for each site and is ready to provide the service. CAT shall
        not be responsible to any expenses and taxes related thereto whereby
        such expenses and taxes shall be borne by the Company on behalf of CAT.
        The Company agrees to make advance payment of the Value Added Tax
        arising from the transfer of title as stated above on behalf of CAT. If
        CAT obtains a refund of input tax from the Revenue Department, CAT shall
        return such Value Added Tax to the Company according to such amount of
        the refund of input tax received from the Revenue Department.

        The Company shall commence the installation of equipment and accessories
        under the first paragraph by 31 August 2000, and must complete the
        procurement, installation and transfer of title in the equipment and
        accessories, test equipment and RF sub-station system analysis device
        including spare parts thereof according to the first paragraph and be
        ready to provide the service up to [***] cell sites by 30 November 2000
        otherwise CAT shall be entitled to terminate this Agreement immediately
        without prior notice.

16.2    The Company shall confirm in writing that all the equipment and
        accessories, test equipment and RF sub-station system analysis device
        together with the spare parts thereof, procured under Clause 16.1 of
        this Agreement, will be free from any derogation of right and
        encumbrance, and the Company shall arrange to have CAT logo or symbol
        and the words reading "Property of the Communications Authority of
        Thailand" permanently and conspicuously affixed on the said equipment
        and accessories.

16.3    The Company shall ensure that the performance, specification and
        capacity of the equipment and accessories, test equipment and RF
        sub-station system analysis device together with spares part thereof
        provided under Clause 16.1 shall not be inferior than the Code Division
        Multiple Access of the manufactures of CDMA Cellular System and the
        technical specifications as prescribed in the Company's Technical
        Proposal, attached hereto and referred to in Clause 15.3, and that the
        equipment and accessories, test equipment and RF sub-station system
        analysis device together with spare parts thereof as procured by the
        Company shall be compatible with the Cellular System already procured by
        CAT. In case the Company is to deviate from the Technical Specifications
        and

<PAGE>

                                     - 37 -

        Operating Plan, attached hereto and referred to in Clause 15.3, the
        Company shall propose its Technical Proposal for approval by CAT not
        less than 30 days before the implementation thereof.

16.4    So as to enable the Company to do the marketing activities for the
        mobile telephone under the Cellular Digital AMPS 800 Band A System of
        CAT under this Agreement efficiency which will bring benefits to both
        Parties, the Company agrees to let CAT lease additional cell sites in
        the number not less than [***] cell sites, together with the equipment
        and accessories for the provision of additional services relating to the
        mobile telephone under the Cellular Digital AMPS 800 Band A System as
        well as the test equipment and RF sub-station system analysis device for
        the mobile telephone network under the Cellular system including all
        requisites for the operation of those cell sites according to details in
        the Technical Specifications and Operating Plan, attached hereto and
        referred to in Clause 15.3, from BFKT (Thailand) Limited, hereinafter
        referred to as the "Leasing Company". The Leasing Company shall own and
        import and install the equipment and accessories and test equipment and
        RF sub-station system analysis device and all requisites as mentioned
        above, and CAT shall hire the Leasing Company to improve, replace,
        repair and maintain, and manage those equipment and accessories and test
        equipment and RF sub-station system analysis device and all requisites
        mentioned above according to the lease agreement and the hire agreement
        between CAT and the Leasing Company. The Company shall be solely
        responsible for paying the lease payment, wages, payment for looking
        after and management, VAT, and other related expenses as well as fine,
        surcharge, interest, compensation or any other sum under the lease
        agreement and the hire agreement between CAT and the Leasing Company to
        the Leasing Company. CAT must not be responsible for those lease
        payment, wage, payment for looking after and management, VAT, and other
        related expenses as well as fine, surcharge, interest, compensation or
        any other sum to the Leasing Company at all. The Leasing Company must
        take action and enforcement against the Company only for the payment of
        those lease payment, wage, payment for looking after and management,
        VAT, and other related expenses as well as fine, surcharge, interest,
        compensation or any other sum, and may not exercise its claim or enter
        an action against CAT.

16.5    The equipment and accessories and test equipment and RF sub-station
        system analysis device and all requisites under Clauses 16.1 and 16.4
        must have a capacity to handle the recipients of services which will be
        increased according to marketing target in Clause 4 and the volume of
        traffic during busy hours of each promotion period without causing the
        standards of the Grade of Service and Percentage of Drop Call during
        normal situation and suitable duration to become inferior to the design
        pursuant to the Technical Specifications and Operating Plan under Clause
        15.3. In case that CAT deems it expedient to connect with other domestic
        network (roaming), the equipment and accessories and test equipment and
        RF sub-station system analysis device and all requisites under Clauses
        16.1 and 16.4 must have the capacity to accommodate the roaming.

16.6    CAT shall use the equipment and accessories of the [***] and [***] cell
        sites in Clause 16.1 and the equipment and accessories of the additional
        cell sites which CAT shall lease

<PAGE>

                                     - 38 -

        from the Leasing Company according to Clause 16.4 for the Company to
        undertake the marketing service hereunder, provided the Company must
        also undertake the marketing service in consistency with the capacity of
        the system as specified in each phase of the marketing plan.

16.7    CAT shall request for interconnections to Public Switching Telephone
        Network or PSTN as well as the basic telephone service providers and
        other cellular service providers, and shall facilitate the import of
        equipment and accessories and test equipment and RF sub-station system
        analysis device and all requisites under Clauses 16.1 and 1.64 and apply
        for licenses under the Communication Radio Act B.E. 2498 and other
        relevant law from the responsible agencies in the name of CAT.

16.8    The Company shall always procure sufficient equipment and accessories
        for the provision of after sale service at its sole expense.

16.9    The Company agrees to be responsible for making payment to or in place
        of CAT with respect to expenses incurred in the management of the [***]
        and [***] cell sites under Clause 16.1 as from the effective date of the
        Agreement Amending the Agreement for Marketing Service of Mobile
        Telephone Under the Cellular Digital AMPS 800 Band A System of CAT
        between CAT and the Company No. 2/3543 dated 16 October 2000, as
        follows:

        16.9.1  Installation cost and rent for the E-1 network connection
                between the base station and cell sites.

        16.9.2  Installation cost and rent for the inter-connection between the
                switching centers of TOT and other basis telephone and cellular
                service providers and the CDMA switching center of CAT.

        16.9.3  Rent for the space of the equipment and accessories of base
                station and switching centers.

        16.9.4  Cost of electricity and water for the base station and switching
                centers.

        16.9.5  Remuneration for improvement, replacement, maintenance and
                management of the Cellular CDMA network system.

        16.9.6  Other expense for managing the cell sites such as, cost of
                improvement, replacement, repair and maintenance, insurance
                premiums, advisor fee etc.

16.10   The Company agrees to be responsible for remuneration for the use of
        radio frequencies and license fees for the operation of service of
        mobile telephone under the Cellular Digital AMPS 800 Band A System of
        CAT which CAT may pay to the organization or agency authorized to impose
        the same, for the amount not exceeding [***] per annum.

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                                     - 39 -

        For the amount exceeding [***] per annum, the Company agrees to be
        responsible for the amount equal to:

        The amount exceeding [***] per annum multiplied by the number of cell
        sites in Metropolitan, divided by the aggregate amount of the cell sites
        in Metropolitan and Upcountry.

        Whereby, the above mentioned cell sites shall be counted from the
        existing number of cell sites on the first day of every period that
        permission for the use of radio frequencies and the service of mobile
        telephone under Cellular Digital AMPS 800 Band A System of CAT is
        granted by the authorized organization or agency to CAT.

16.11   The Company agrees to be responsible in place of CAT for installation
        cost and rent for Inter Connection between the switching centers of
        Telephone Organization of Thailand and other basic telephone service
        providers and cellular service providers and the leased CDMA switching
        center under Clause 16.4.

16.12   The Company must pay expenses under Clause 16.9, 16.10, and 16.11 to or
        in place of CAT within the period of time notified by CAT or the persons
        who have the right to claim those expenses from the Company, provided
        that CAT shall also provide the Company with evidence of such expenses
        which CAT requires the Company to pay. If the Company fails to pay those
        expenses within the said period, the Company must pay interest at [***]
        thereof per month to CAT. A fraction of a month shall be treated as one
        month. The provisions in this Clause shall not prejudice the right of
        termination of CAT under Clause 13.

16.13   The Company shall procure for the installation sites for the equipment
        and accessories under Clause 16.1 and 16.4 and be solely responsible for
        all expenses thereof. CAT may consider allowing the Company to use CAT's
        premises as the installation sites as CAT deems appropriate and the
        Company shall be responsible for the expenses thereof.

        If it is necessary to improve, build or add the premises, buildings or
        any other structures under the first paragraph including the
        installation of air-conditioners in such sites, buildings or other
        structures, the Company shall be responsible to do the same with its own
        expenses subject to CAT's approval.

        The Company shall pay rent or other consideration to CAT for the use of
        CAT's premises under the first paragraph and be solely responsible for
        cost of electricity, water and other expenses arising from the use of
        such premises, buildings or structures as the installation sites under
        the first paragraph. If CAT has already paid such expenses, the Company
        shall reimburse the same to CAT within 30 (thirty) days from the date of
        being notified by CAT.

        CAT may allow the Company to use CAT's premises under the first
        paragraph with or without conditions as it sees fit. Such decision of
        CAT is final, and the Company cannot raise it as a reason not to perform
        any obligations under this Agreement.

<PAGE>

                                     - 40 -

        In the case where the installation sites for the equipment and
        accessories under Clause 16.1 and 16.4 are not CAT's premises, the
        Company shall procure such premises with its own investment and be
        responsible for all expenses thereof. The Company shall inform CAT of
        such installation sites within 15 (fifteen) days from the date on which
        the Company has procured such installation sites.

        In case the premises under the first paragraph is the ownership of the
        Company, when this Agreement terminates by whatever reasons, the Company
        shall allows CAT to possess and use such premises for an additional
        period of 1 (one) year from the date of termination without CAT paying
        expenses for the possession and use of the same. In case the premises
        under the first paragraph is not the ownership of the Company, the
        Company must make an agreement with the owner of such premises to lease
        them in the name of the Company throughout the period in which this
        Agreement is in force and be solely responsible for the rent and any
        expenses thereof. The Company shall use its reasonable endeavors to make
        an agreement with the owner of the premises that if this Agreement
        terminates by whatever reasons, the leasehold right of such premises
        shall be transferred to CAT immediately for CAT to possess and use such
        premises with the assets owned or possessed by CAT as a lessee in place
        of the Company. In such case, CAT shall be responsible for the rent
        and/or any expenses arising from the lease as from the date of transfer
        of the leasehold right to CAT, and the Company agrees to be responsible
        for debts and damages which have arisen from the lease agreement before
        such leasehold right is transferred to CAT.

16.14   The Company must take out an insurance against all risks for the
        equipment and accessories under Clause 16.1 which are normally insurable
        for the full replacement value thereof with an insurance company
        registered and operating insurance business in Thailand throughout the
        term of the marketing under Clause 3 of this Agreement. The Company
        shall pay the insurance premiums and CAT shall be designated a sole
        beneficiary so that CAT shall use the proceeds of the insurance
        agreement for repairing and/or procuring the replacement equipment and
        accessories in case of loss or damage.

        The Company shall furnish CAT with the insurance policy under the first
        paragraph within 30 (thirty) days from the day in which the Company has
        taken out the insurance each time. If the insurance policy expires
        before the term of this Agreement, the Company shall extend the term of
        such insurance policy or furnish CAT with a new insurance policy not
        less than 30 (thirty) days before the date of expiration of the first
        insurance policy.

        Throughout the term of the marketing under Clause 3, the Company shall
        be responsible to and indemnify CAT, the owner of the premises and/or
        other persons for any damages to the premises, buildings or any
        structures, equipment and accessories as well as any properties which
        arise from the use thereof by the Company or from willful acts or
        negligence of the Company, officers, employees or other persons in
        contact with the Company.

16.15   In respect of mobile phones for the use of Prepaid Service, the Company
        shall send the data in relation to the sales and the rechargeable value
        of prepaid cards to CAT as of the

<PAGE>

                                     - 41 -

        end of every month within 45 (forty-five) days, which data shall at
        least contain the information on productions and distribution of each
        type of prepaid cards, the volume of mobile phone numbers that have been
        activated for the use of Prepaid Service, the amount of time/minutes
        used, the value of prepaid cards used, the outstanding value of prepaid
        cards, or any other information which may be required by TOT Corporation
        Public Company Limited ("TOT") to be notified in advance to the Company
        by CAT.

        In the case where the volume of the prepaid cards sold must be revised
        or amended as a result of any refund thereof due to the damages or
        losses of the prepaid cards or the request for the change of the prepaid
        cards by purchasers whereby the refund or card replacement must be made
        for the purchasers, CAT is entitled to revise or amend the data of the
        distribution of the prepaid cards pursuant to the first paragraph in
        accordance with the revised or amended data that has been agreed between
        CAT and TOT. The data so revised or amended is to be used as the basis
        for calculation of the Connecting Fees. The Company must submit the
        requests of the purchasers for such refunds, the evidences of the refund
        payments to the purchasers and/or any documents evidencing the requests
        of the purchasers for the card replacements, to CAT within the period of
        time stated in the first paragraph.

Clause 17.      The Company shall propose a work schedule, for each and
                every installation of equipment and accessories of cell site(s)
                under Clause 16.1 to CAT for its approval not less than 30
                (Thirty) days in advance.

Clause  18.     The Company shall lease the transmission backbone and
                equipment between the base station and the [***] cell sites and
                the [***] cell sites under Clause 6.1 from CAT and pay all
                expenses in the lease to CAT. CAT shall charge the lease fees at
                reasonable rates which are not higher than those which CAT offer
                to other persons in general.

                If CAT cannot provide the transmission backbone and equipment
                under the first paragraph, the Company must procure the part of
                the transmission backbone and equipment that are not available
                from CAT including spare parts thereof and transfer the title
                therein to CAT as from the date on which those transmission
                backbone and equipment are completely installed and ready for
                service. CAT must not be responsible for any expenses and taxes
                therefor which the Company must pay in place of CAT. In this
                connect, the Company needs not lease those transmission backbone
                and equipment from CAT, or the Company may lease the part of the
                transmission backbone and equipment not available from CAT from
                other service provider provided that the Company shall give a
                prior notice to CAT not less than 7 days before leasing the same
                from other service provider and must be responsible for all
                expenses and taxes in the lease.

                The transmission backbone and equipment procured by the Company
                under the second paragraph shall be brand new and unused and
                shall not be old stocks, and must be owned by the Company. The
                Company shall certify in writing that all those transmission
                backbone and equipment are free from any and all derogation of
                right and encumbrances and shall arrange to have CAT logo or
                symbol and the words reading "Property of the Communications
                Authority of Thailand"

<PAGE>

                                     - 42 -

                permanently and conspicuously affixed on the said transmission
                backbone and equipment.

Clause 19.      CAT shall perform and provide the service of mobile
                telephone under the Cellular Digital AMPS 800 Band A System of
                CAT under this Agreement. CAT shall cooperate with the Leasing
                Company to ensure performance integrity between the [***] and
                [***] cell sites and the additional cell sites which CAT leases
                from the Leasing Company as a whole and achieve the Grade of
                Service.

Clause 20.      As for equipment and accessories of the cell sites which CAT
                leases from the Leasing Company, CAT or a juristic person that
                accepts the transfer of rights and/or obligations from CAT
                and/or a juristic person transformed or converted from CAT or a
                subsidiary company or affiliated company of CAT or of the
                juristic person that accepts the transfer of rights and/or
                obligations from CAT and/or of a juristic person transformed or
                converted from CAT according to Clause 13.10 of the Shareholders
                Agreement of Hutchison CAT Wireless MultiMedia Company Limited
                between CAT and i-Mobile Holdings Company Limited dated 16
                October 2000 attached hereto and referred to in Clause 15.2,
                shall have the right to use the same for internal communications
                of CAT or both juristic persons or the subsidiary company or
                affiliated company of CAT or of both juristic persons, and for
                providing the mobile telephone service under the Cellular system
                to the numbers under the service agreements made with CAT or
                both juristic persons, or the subsidiary company or affiliated
                company of CAT or of both juristic persons in the Upcountry
                project, subject to Clause 21. The terms "subsidiary company"
                and "affiliated company" under the first paragraph shall have
                the same meanings as ascribed in Clause 3.1 of the Shareholders
                Agreement of Hutchison CAT Wireless MultiMedia Company Limited
                which is referred to in the first paragraph.

Clause 21.      When CAT invests, installs and owns the network under the
                Cellular Digital AMPS 800 Band A system in the Upcountry
                project, both parties agree as follows:

                21.1    In case that the recipients of service of Cellular
                        mobile telephones who have made a service agreement with
                        CAT or the juristic persons or the subsidiary company of
                        affiliated company of CAT or of the juristic persons
                        under Clause 20 in the Upcountry project use the service
                        of the Metropolitan network under this Agreement, i.e.
                        the [***] and [***] cell sites in Clause 16.1 and the
                        additional cell sites leased from the Leasing Company in
                        Clause 16.4, if the total number of the Cellular mobile
                        telephones that use the said service in each month shall
                        exceed [***] numbers per month or the aggregate airtime
                        charges for outgoing calls of those Cellular mobile
                        telephones shall exceed [***] minutes per month, CAT
                        shall include the outgoing airtime charges in respect of
                        the part of those Cellular mobile telephones which
                        exceed [***] numbers per month or [***] minutes per
                        month pursuant to the amount to be agreed between CAT
                        and the Company in the computation of remuneration for
                        marketing service under Clause 5. If the total number of
                        Cellular mobile telephones that use the said service do
                        not exceed [***] numbers per month and the

<PAGE>

                                     - 43 -

                        total outgoing calls of those Cellular mobile telephones
                        that use the said service do not exceed [***] minutes
                        per month, the airtime charges for the Cellular mobile
                        telephones that use the said service shall belong to CAT
                        wholly and CAT needs not include them in the computation
                        of remuneration for marketing service payable to the
                        Company under Clause 5.

                21.2    In case that the Cellular mobile telephones marketed by
                        the Company under this Agreement use the service of the
                        Upcountry network of CAT, if the total number of the
                        Cellular mobile telephones that use the said service in
                        each month shall exceed [***] numbers per month or the
                        aggregate airtime charges for outgoing calls of those
                        Cellular mobile telephones shall exceed [***] minutes
                        per month, the outgoing airtime charges in respect of
                        the part of those Cellular mobile telephones which
                        exceed [***] numbers per month or [***] minutes per
                        month pursuant to the amount to be agreed between CAT
                        and the Company shall be included in the computation of
                        remuneration for marketing service to the Company under
                        Clause 5. If the total number of Cellular mobile
                        telephones that use the said service do not exceed [***]
                        numbers per month and the total outgoing calls of those
                        Cellular mobile telephones that use the said service do
                        not exceed [***] minutes per month, the airtime charges
                        for the Cellular mobile telephones that use the said
                        service shall belong to CAT wholly and CAT needs not
                        include them in the computation of remuneration for
                        marketing service payable to the Company under Clause 5.

                21.3    Clause 21.1 and Clause 21.2 of this Agreement shall
                        apply only in the case that CAT, or the juristic person,
                        or the subsidiary company or affiliated company of CAT
                        or the juristic person under Clause 20 conducts
                        marketing service of mobile telephone under the Cellular
                        Digital AMPS 800 Band A System of CAT Upcountry.

                21.4    In calculation of the number of the Cellular mobile
                        telephones and the volume of airtime charges for
                        outgoing calls of those Cellular mobile telephones
                        according to Clauses 21.1 and 21.2, the number of
                        Cellular mobile telephones and volume of airtime charges
                        for both Postpaid Service and Prepaid Service shall be
                        counted altogether.

Clause 22.      This Agreement shall be effective as from the date on which
i-Mobile Holdings Company Limited has fully and duly accepted the transfer of
shares from Tawan Telecom Company Limited pursuant to the Agreement for
Assignment of Rights, Duties and Liabilities under the Shareholders Agreement of
Hutchison CAT Wireless MultiMedia Company Limited among CAT, Tawan Telecom
Company Limited and i-Mobile Holdings Company Limited dated 16 October 2000.

CLAUSE 23  OPERATION OF PREPAID SERVICE

23.1    CAT agrees to authorize the Company to design, procure, and distribute
        the Prepaid

<PAGE>

                                     - 44 -

        Cards, including to arrange for channel of distribution and method for
        adding Prepaid Service Fees at its sole expense. The Company shall
        present its proposal of its plan or details of the aforesaid operations
        to CAT for consideration, and CAT has the right to inspect and regulate
        such production, procurement, distribution, and method of adding the
        Prepaid Service Fees.

23.2    The Company shall present a proposal for the procurement of prepaid
        cards to CAT for approval at least 15 days before each procurement. In
        the event that CAT does not raise any objections within 15 days from the
        date it receives such proposal, the Company may proceed with such
        proposal.

23.3    The prepaid cards shall expressly show the following words or symbols in
        an appropriate size and form:

        .       Logo or name used for marketing purposes
        .       Face value of the cards in Arabic numbers or units, or not
                specify the face value in the case of a complementary prepaid
                card
        .       Item code, Serial No.

23.4    Prepaid cards must contain item code of which the particular card was
        produced. Each prepaid card must be usable before the expiry date stated
        in the card. In the event of an update or modification for security
        purposes, the Company must consent for the holder of an old prepaid card
        that has never been used to exchange the old card with a new card of
        equal value, or consent for the Cellular mobile telephone using Prepaid
        Services of the same number to use the remaining service fees under the
        same conditions.

23.5    The value of each prepaid card before use must not be less than the face
        value or unit indicated on the card, except in the case of complementary
        phone cards.

        In adding the Prepaid Service Fees, the Company must comply with the
        conditions and regulations, which CAT shall consider and stipulate in
        accordance with the plans in clauses 23.1 and 23.2.

23.6    The ratio of prepaid cards of each price and its quantity depends on the
        demand of the people and the trend of the market. As such, the Company
        shall supply a sufficient quantity for each type of card, or refrain
        from causing affliction to the people.

23.7    Any modification of the face value for distribution by the Company must
        receive a prior written approval by CAT before it can be performed.

23.8    In the case of prepaid cards not manufactured by the Company, for each
        time the Company orders prepaid cards from a manufacturer, the Company
        must notify CAT in writing along with a certificate issued by the
        manufacturer of the prepaid cards. Such certificate must at least
        contain details regarding the item code, quantity of the cards, the
        value of each type of cards, the date of the order, and documents
        regarding the importation issued by the Customs Department (in the case
        that the prepaid cards are imported).

<PAGE>

                                     - 45 -

23.9    The Company shall notify CAT of the name of the manufacturer of prepaid
        cards, item code, face value, quantity of all prepaid cards manufactured
        once they have been manufactured for CAT to issue invoice and tax
        invoice under Clause 7.5.

23.10   The Company shall prepare a monthly report regarding the quantity of
        prepaid cards manufactured, procured or imported, quantity of unsold
        prepaid cards categorized by item code, quantity and face value of
        prepaid cards together with the aggregate balance and report of the
        addition of Prepaid Service Fees categorized by item code.

23.11   In the case that the Company acts intentionally or negligently which
        results in fraud of prepaid cards, the Company shall be liable all
        damages incurred therefrom.

23.12   The Company shall procure machinery and equipment capable of verifying,
        regulating, and preventing the use of counterfeit prepaid cards with its
        sole expense.

23.13   During the term of the Agreement, if it is found that there is a fraud
        of prepaid cards, that the Prepaid service does not comply with a good
        standard or causes damage to the reputation or property of CAT or the
        people, CAT shall notify the Company in writing in order to remedy the
        problem or suppress it within 90 days from the date the Company receives
        such written notification. If after this period the Company is still
        unable to remedy the problem or suppress it, CAT shall have the right to
        terminate the Agreement under Clause 13, retain the security deposit
        under Clause 11 and claim for damages.

23.14   The Company authorizes CAT to inspect the quantity and value of prepaid
        cards in the Company's inventory, the recording system for the billing
        of the distribution and addition of Prepaid Service Fees under this
        Agreement. The Company shall prepare relevant information and various
        details for the officer or authorized agent of CAT to perform such
        inspection at any time during the Company's regular office hours as CAT
        sees fit, regardless of whether CAT notifies the Company in advance or
        not, and with the Company's full cooperation. The Company shall arrange
        for a computerized system to control the stock of prepaid cards.

23.15   In the event that the prepaid cards that the Company buys from CAT under
        Clause 7.5 are defective, damaged, expired or unable to be used for
        adding the Prepaid Service Fees by other reasons, or the prepaid cards
        are lost or stolen and have not yet been used, the Company will prepare
        and send a report to CAT, which at least shows the quantity and value of
        each type of cards and details of such defect, damage, expiry, inability
        to add the Prepaid Service Fees, loss or theft, together with the
        defective, damaged, expired prepaid cards or the prepaid cards that
        cannot be used for adding the Prepaid Service Fees, or evidence of loss
        or theft such as the complaint filed to a police officer. After CAT has
        verified it, CAT shall issue a credit note to the Company in the amount
        equal to the value of the prepaid cards that are defective, damaged,
        expired or unable to be used for adding the Prepaid Service Fees by
        other reasons, or the prepaid cards are lost or stolen.

        In the event that the Company acts intentionally or negligently which
        results in the prepaid cards being lost or stolen and such prepaid cards
        have been used, the Company shall remit the Prepaid Service Fees to CAT
        under Clause 7.5 equal to the amount of

<PAGE>

                                     - 46 -

        money of the service used.

This Agreement is made in duplicate with identical content. The parties have
thoroughly read and understood the same and, therefore, set their hands together
with the seal (if any) affixed in presence of witnesses, each holding one copy.

CAT                                         COMPANY

Signed  /s/ Thirapong Suttino               Signed  /s/ Ormsin Chevapruk
        ------------------------                    ----------------------
        (Mr. Thirapong Suttinon)                    (Mr. Ormsin Chevapruk)

                                            Signed  /s/ Stephen Wing Fai Sun
                                                    --------------------------
                                                    (Mr. Stephen Wing Fai Sun)

Signed  /s/ Kajornsak Singhasenee Witness   Signed  /s/ Wisit Kanjanopas Witness
        -------------------------                    -------------------
        (Mr. Kajornsak Singhasenee)                 (Mr. Wisit Kanjanopas)

Signed  /s/ Sirilak Rojanadis Witness       Signed  /s/ Amornyot Panich Witness
        ---------------------                       -------------------
        (Mrs. Sirilak Rojanadis)                    (Mr. Amornyot Panich)

<PAGE>

                                      - 47 -

Attachment 15.1

                      (TRANSLATION FROM THE THAI ORIGINAL)

This Document certifies only the            The true and complete certification
particulars the company has registered      must carry a serial number, bear
for legal effect. Facts relating to         the full signature of the Registrar
actual standing should be sought            and have the seal of the Registrar
elsewhere                                   affixed

                                 ( G A R U D A )

No.     Sor Or. 0057206                     PARTNERSHIPS AND COMPANIES
                                            REGISTRATION OFFICE
                                            Bangkok Metropolis

                             CERTIFICATION DOCUMENT

        This is to certify that this Company was registered under the Civil and
Commercial Code as a juristic person, being incorporated as a limited company,
Registration No. (2) 2575/2539 on the 14th day of June B.E. 2539 and that the
following information appears in the documents registration records on the day
of issuance hereof:

        1.  The name of the Company is "Tawan Mobile Telecom Company Limited".

        2.  The Company has 9 directors whose names are here listed:
            (1) Mr. Anuwat Laikijrung         (2) Mr.Sukhato Phummalee
            (3) Mr. Rasamee Sawamipak         (4) Mr.Worrawit Pativejwong
            (5) Mr. Ratana Meetem             (6) Mr.Prasartporn Surasit
            (7) Mr. Ormsin Chivapruck         (8) Mr.Watthanachai Watthanasonthi
            (9) Mr. Ratien Srimongkon         (10)______________________________
            (11)_____________________________ (12)______________________________
            (13)_____________________________ (14)______________________________

        3.  Number or names of the directors who can sign to bind
            the Company are:
            1.Any one of Mr. Prasartporn Surasit or Mr. Ormsin Chivapruck or
            Mr. Watthanachai Watthanasonthi and any of one Mr. Anuwat
            Laikijrung or Mr. Sukhato Phummalee or Mr. Worrawit Pativejwong
            or Mr. Ratana Meetem or Mr. Rasamee Sawamipak or Mr. Ratien
            Srimongkon jointly sign with affix the Company's seal

        4.  The registered capital is fixed at Baht 15,000,000

        5.  The address of the principal business office is 947 Moo 12
            Bangna-Trad Road, Khwaeng Bangna, Khet Bangna, Bangkok Metropolis

        6.  The objects of the Company comprise 50 items and are as appear
            in the copy of the documents attached hereto in 6 sheet(s)
            which bear the signature of the Registrar who certified the
            document and are affixed with the seal of the Partnerships and
            Companies Registration Office.

                                      Issued on this day the 9 October B.E. 2543

<PAGE>

                                     - 48 -

        The Registrar may terminate the
        registration if it appears later that                - Signature -
        the registration is not duly done.               ( Mrs. Manee Pinvises )
                                                                Registrar
                                                                 (SEAL)
Bor Chor (2) 2575/2539

The objects of this Company are 50 to number, as follows:

GENERAL OBJECTS

(1)     To buy, obtain, receive, rent, lease out buy or hire-purchase, own,
        possess, improve, use or otherwise manage any property whatsoever as
        well as the fruits thereof.

(2)     To sell, transfer, mortgage, pledge, receiving pledge exchange or
        otherwise dispose of any property.

(3)     To be a broker, agent or commission agent in transactions and businesses
        of all types except insurance, membership recruitment for associations,
        and trading in securities.

(4)     To borrow money, overdraw from accounts with banks, juristic persons or
        other finance institutions; and to lend money or otherwise give credit,
        with or without security; as well as to accept, issue, transfer or
        endorse bills of exchange or other negotiable instruments except the
        banking business, finance business and credit foncier business.

(5)     To establish branch offices or to appoint agents, within or without the
        Kingdom.

(6)     To become a partner with limited liability in a partnership and a
        shareholder in other companies.

OPERATING OBJECTS

(7)     To carry on the business of trading in rice, rice products, cassava,
        cassava products, maize, sesame seeds, beans, pepper, jute, kapok,
        cotton, lac, castor beans, wood, resin, vegetables, fruits, forest
        products, medicinal herbs, animal hides, animal horn, live animals,
        animal flesh, sugar, animal feed, and agricultural products of all
        kinds.

(8)     To carry on the business of trading in machinery, engines, mechanical
        tools, labour-saving devices, vehicles, electricity generators and
        electrical goods, refrigerators, air-conditioners, fans, electric
        rice-cookers, electric irons, water-pumps, heaters, coolers, kitchen
        utensils, hardware, copperware, brassware, sanitary fittings, home
        fittings, furniture, electrical equipment, and plumbing, including spare
        parts and accessories for the aforesaid goods.

(9)     To carry on the business of trading in fresh food, dried food,
        pre-cooked food, tinned food, food seasoning, liquid refreshment,
        liquor, beer, cigarettes, and other consumables.

(10)    To carry on the business of trading in textiles, yarn, garments,
        ready-made clothes,

<PAGE>

                                     - 49 -

        wearing apparel and accessories, cosmetics, beauty aids and accessories,
        and other consumer goods.

(11)    To carry on the business of trading in medicines for the curing and
        prevention of disease in humans and animals, pharmaceutical products,
        chemical substances, medical and pharmaceutical equipment, fertilizers,
        herbicides and pesticides, all kinds of growth agents for plants and
        animals, and scientific instrument and equipment.

(12)    To carry on the business of trading in gold, precious metal alloys,
        silver, diamonds, precious gems and semi-precious stones, including
        imitations thereof.

(13)    To carry on the business of trading in paper, stationery, school books,
        printed forms, printed books, educational materials, calculators,
        printers, printing equipment and accessories, printed matter,
        newspapers, filing cabinets, and all kinds of office equipment.

(14)    To carry on the business of trading in construction materials,
        construction equipment and tools, implements used in construction, all
        types of workman's tools, pigment and paint, painter's equipment, and
        all kinds of building ornament and decoration.

(15)    To carry on the business of trading in plastics, or other similar
        materials, either in raw form or processed into articles.

(16)    To carry on the business of trading in latex, cured rubber sheet, or
        other kinds of rubber, which are produced by or derived from any part of
        the rubber tree, including synthetic rubber and synthetic versions of
        the said materials or goods made by scientific means.

(17)    To carry on the business of rice farming, orchard gardening, growing
        plant crops, salt production (from evaporation of sea water), forestry,
        rubber plantation, raising animals, and the stock-raising business.

(18)    To carry on the business of a rice mill, sawmill, planing and
        impregnating timber mill, automobile body builders, ceramic and glazed
        ware factory, pottery factory, jute-bailing factory, vegetable-oil
        extraction factory, paper factory, gunny-bag factory, textile factory,
        spinning factory, textile dying and printing factory, rubber-tire
        manufacture and retreading factory, iron works, metal casting and
        machine lathing, and galvanized, iron sheet manufacture, pre-cooked food
        factory, liquor distillery, gas factory, cigarette factory, sugar-mill,
        plastic goods factory, metal-pressing and smelting factory, door and
        window manufacture, glass factory, soft drink manufacture, rubber
        casting factory, automobile assembly works.

(19)    To carry on the business of a printing house, printing and publishing
        books service, printing and publishing books for sale and newspaper
        publishing.

(20)    To carry on the business of ice factory.

(21)    To carry on the business of fishery, fishing pontoons, and fish trading
        on piers.

<PAGE>

                                     - 50 -

(22)    To carry on business of stone blasting and rock crushing.

(23)    To carry on the contracting business of constructing buildings,
        commercial buildings, residential buildings, offices, roads, bridges,
        tunnels, dams, and all other kinds of constructions as well as all
        categories of civil engineering work.

(24)    To carry on the business of mining, ore smelting, ore extraction, ore
        conversion, fusing ores, dressing minerals, mineral surveying, analyzing
        and examining minerals, grinding ore and transportation of minerals and
        ore.

(25)    To carry on the business of hotels, restaurants, bars, night-clubs,
        bowling alleys, massage parlors, cinema theatres and other kinds of
        theatres of entertainment, vacation resorts, sport fields, and swimming
        pools.

(26)    To carry on the business of shipment transportation and loading of goods
        and passengers on land, on water, or in the air, both within the country
        and internationally, including the services of bringing shipment at
        ports through customs clearance and management of all kinds of freight.

(27)    To carry on the business of guided tours including all kinds of business
        involved with guided tours.

(28)    To carry on the business of foreign currency exchange (when permitted by
        the Ministry of Finance).

(29)    To carry on the business of import and export for distribution of the
        goods stipulated in the objects.

(30)    To carry on the business of hair-cutting, hair-dressing, beauty-salon,
        dress-making, and laundry.

(31)    To carry on the business of commercial photograph, the development,
        printing and enlargement of photographs, including the same for
        documents.

(32)    To carry on the business of production and distribution of movie films.

(33)    To carry on the business of a service station selling petrol and
        providing repair, maintenance and inspection services, lubrication,
        spraying, and anti-rust treatment for all kinds of vehicles, including
        the services of installation, inspection and fixing of all kinds of
        anti-theft and accident prevention accessories.

(34)    To carry on service businesses in legal, accountancy, engineering and
        architectural fields, including advertising.

<PAGE>

                                     - 51 -

(35)    To undertake a service business providing guarantees for debt, liability
        or performance of the contractual obligations of other persons,
        including the guarantee for a person who has entered or departed the
        country in accordance with the laws of immigration, taxation and other
        laws.

(36)    To undertake a service business of counselling and making
        recommendations on problems related to work management, commerce and
        industry, including problems of manufacturing, marketing and
        distributing.

(37)    To carry on a service business of collecting, compiling, preparing,
        publishing and distributing statistics, data and information concerning
        agriculture, industry, commerce, finance and the market, including
        analyzing and assessing the outcome of business transactions.

(38)    To carry on the business of a private hospital and nursing home, of
        curing of the ill and people in pain, and providing technical
        instruction and training in medicine and health science.

(39)    To carry on a service business of being a manager who protects
        interests, collects and receives the benefit and manages the properties
        of others.

(40)    To carry on the business of bidding for sale of goods and hire of work
        in accordance with all of the objects, for any person, body of persons,
        juristic person, government agency and state enterprise.

(41)    To carry on the business of cellular telephone communication services.

(42)    To engage in the business of providing news and telex communication
        services and in the business of providing services on television and
        radio, mass communication, and all kind of telecommunication; to
        produce, procure, and to be hired to produce and procure videotape,
        transmitter and receiver radio, television and video, and all kind of
        communication equipment including necessary materials and devices in
        order to implement its business engaged, or its services provided, or
        otherwise be hired of service.

(43)    To carry on its licensed or assigned business and to provide services
        thereto, or to engage in the business requested by any government
        agency, state enterprise, juristic person, or private agency both in and
        outside Thailand, and to enter into or become an associate of a business
        and affair which it is licensed or assigned or be hired of service in
        relation with radio, television, video, equipment or all kind of
        telecommunication instruments or mass communication businesses.

(44)    To carry on the business to let property, sell, rent, let, hire
        purchase, let for hire purchase, sell with right of redemption,
        exchange, mortgage, or acquire or dispose of land and

<PAGE>

                                     - 52 -

        immovable property by any means. To use or utilize land or other assets
        and to mortgage, take mortgage of, rent, let, or exchange of movable
        properties;

(45)    To buy, sell, assemble, install radio and telephone appliances and all
        kind of telecommunications and electronic equipment, as well as radio
        wires and telegram wires used together with the such equipment and
        appliances, metals used for installing pole and telephone wires, all
        kinds of equipment to be used or to facilitate radio telegram in every
        frequency including receiver or transmitter in any means, equipment for
        marine telecommunication, tube communication and control systems,
        satellite communication system, radio communication and accessories
        thereof.

(46)    To carry on the business of repair, and maintenance services of
        merchandises pursuant to the Company's objects and to clean, test, and
        give instruction in connection with the application, maintenance and
        operation thereof.

(47)    To make contact with govern agencies and competent office to acquire or
        dispose of exclusive rights, agreements, rights, ownership, licenses,
        rights over trademark, industrial property, copyrights, patents,
        concessions or privileges necessary for business operation of the
        Company.

(48)    To file application and hold permits and other registration which are
        necessary to or for the purpose of the business of the Company.

(49)    To carry on the business of installation, repair, and maintenance of all
        kind of public telephone and to import, manufacture and sell all kind of
        telephone appliances, public telephone appliances and telephone cards.

(50)    To carry on telecommunication business as well as to market
        cellular-system telephone service on Digital AMPS 800 Band A of
        Telecommunication Authority of Thailand, i.e. to procure sale channel
        for cellular phone and service for Digital AMPS 800 Band A of the
        Telecommunication Authority of Thailand and to procure additional
        services in connection therewith, after-sale services and other services
        in connection with sales and promotion.

<PAGE>

                                     - 53 -

Attachment 15.2
                        (Translation from Thai Original)

                             SHAREHOLDERS AGREEMENT
                                       OF
                      TAWAN MOBILE TELECOM COMPANY LIMITED

                                   ----------

        THIS AGREEMENT is made at the Communications Authority of Thailand No.
99 Mu 3, Chaeng Watthana Road, Kwaeng Thung Song Hong, Khet Laksi, Bangkok
Metropolis 10002 on 16 October 2000 between THE COMMUNICATIONS AUTHORITY OF
THAILAND, by Mr. Thirapong Suttinon, Governor of the Communications Authority of
Thailand, hereinafter referred to as "CAT", on the one part, and i-MOBILE
HOLDINGS COMPANY LIMITED, a limited company incorporated under the law of
Thailand, by Mr. Stephen Wing Fai Sun, the Director authorized to sign to bind
i-MOBILE HOLDINGS COMPANY LIMITED as evidenced by the Certification Document of
the Partnerships and Companies Registration Office, Bangkok Metropolis No. Mor.
Ror. 0026485 dated 10 October 2000, which is attached hereto and referred to in
Clause 19.1, and having its head office located at 990 22nd-25th Floor, Rama IV
Road, Kwaeng Silom, Khet Bangrak Bangkok Metropolis 10500, hereinafter referred
to as "i-Mobile", on the other part.

        WHEREAS CAT has entered into the Shareholders Agreement of Tawan Mobile
Telecom Company Limited dated October 14, 1999 with Tawan Telecom Company
Limited in order to jointly invest in Tawan Mobile Telecom Company Limited,
hereinafter referred to as "the Company" with the main objective to undertake
the Marketing Service of the Mobile Telephone Under the Cellular Digital AMPS
800 Band A System of CAT; and

        WHEREAS CAT has agreed to let Tawan Telecom Company Limited, hereinafter
referred to as "Tawan" transfer all of its shares in the Company to i-Mobile,
subject to condition that i-Mobile shall enter into an agreement with CAT under
the terms of the aforesaid Shareholders Agreement of Tawan Mobile Telecom
Company Limited.

        Both parties which, unless specifically referred to, shall be
hereinafter collectively referred to as "the Parties", are desirous to enter
into a joint investment and be further bound by the Shareholders Agreement of
Tawan Mobile Telecom Company Limited, and therefore agree to execute this
Shareholders Agreement of Tawan Mobile Telecom Company Limited according to the
terms as follows:

CLAUSE 1.       FORMATION OF THE COMPANY, ACCEPTANCE OF SHARE TRANSFER AND
                PROPORTION OF SHAREHOLDINGS

        The registration of the Company shall be in accordance with details
stipulated in the Memorandum and Articles of Association of the Company as
prescribed herein.

<PAGE>

                                     - 54 -

        1.1     The Thai name of the Company shall be "BORISAD TAWAN MOBILE
TELECOM JAMKAD". The English name of the Company shall be "TAWAN MOBILE TELECOM
COMPANY LIMITED".

        1.2     The head office of the Company shall be located at No. 947 Mu
12, Bangna-Trad Road, Kwaeng Bangna, Khet Bangna, Bangkok Metropolis 10260. If
there will be any change in the address of the head office of the Company, a
written notice thereof shall be given to CAT not less than 30 (Thirty) days in
advance.

        1.3     The main objective of the Company shall be for the Marketing
Service of the Mobile Telephone Under the Cellular Digital AMPS 800 Band A
System of CAT including other objectives as listed in the Memorandum of
Association of the Company.

                In this Agreement, the term "Marketing Service of the Mobile
Telephone Under the Cellular Digital AMPS 800 Band A System of CAT" means the
provision of means for the distribution of cellular mobile telephones, the
provision of means for sale of services of the Mobile Telephone Under the
Cellular Digital AMPS 800 Band A System of CAT including the provision of value
added services relating thereto as well as after sale services and supplementary
services relating to the sale and marketing promotion.

                In carrying out the business under the objective mentioned in
paragraph one hereinabove, the Company shall comply with all related laws and
resolutions of the Cabinet.

        1.4     Subject to Clause 2 hereof, the registered capital of the
Company shall be Baht 15,000,000 (Fifteen million Baht) divided into 1,500,000
(one million five hundred thousand) ordinary shares entered in a name
certificate with the par value of Baht 10 (Ten Baht) each.

        1.5     i-Mobile holds shares in the Company at 65 per cent of the total
number of shares in the Company. i-Mobile has accepted the transfer of ordinary
shares from the shareholders who are promoters and Tawan in the amount of 65 per
cent of the total number of shares, i.e. shares numbered 0000001- 0000070 and
numbered 0045071-1020000 being a total of 975,000 (nine hundred seventy five
thousand) shares.

        1.6     i-Mobile agrees to become a shareholder in the Company and to
accept the assignment of rights, duties and liabilities which Tawan has towards
CAT and the Company under the Shareholders Agreement of Tawan Mobile Telecom
Company Limited dated 14 October 1999 in all respects, pursuant to the Agreement
for Assignment of Rights, Duties and Liabilities under the Shareholders
Agreement of Tawan Mobile Telecom Company Limited between CAT, Tawan and
i-Mobile dated 16 October 2000.

        1.7     CAT holds shares at 32 per cent of the total number of shares,
i.e. shares numbered 1020001-1500000 being the total of 480,000 (four hundred
eighty thousand) shares. The initial payment was made at 85 per cent of the
value of those shares. i-Mobile agrees to make payment for the remaining value
of those shares to the Company in place of CAT in cash within 5 days from the
date on which i-Mobile accepts the transfer of shares from Tawan according to
Clause 1.5. Hence, CAT needs not make payment for the value of those shares.

<PAGE>

                                     - 55 -

CLAUSE 2.       INCREASE OF CAPITAL

        Subject to the stipulations of Clause 5.8, the increase of capital of
the Company shall be made in accordance with the following:

        2.1     The registration of increase of capital of the Company both
before and after the increase of capital under Clause 2.3 shall be made as the
Parties deem it appropriate.

        2.2     In the capital increase before the increase of capital under
Clause 2.3, the Parties agree to hold the shares newly issued as per the
following proportions:

                2.2.1   CAT shall hold the aggregate of 32 per cent of the total
shares of the Company;

                2.2.2   i-Mobile shall hold the aggregate of 65 per cent of the
total shares of the Company.

                In the capital increase after the increase of capital under
Clause 2.3, the Parties agree to hold the newly issued shares according to their
existing shareholding proportions.

        2.3     CAT and i-Mobile agree that the Company shall increase its
registered capital by 935,000,000 Baht (Nine hundred thirty-five million Baht)
thus resulting in the total registered capital of 950,000,000 Baht (Nine hundred
fifty million Baht) subject to the following conditions:

                2.3.1   In case that CAT is transformed or converted into a new
juristic entity under the State Enterprise Capital Act B.E. 2542 or other law
within September 30, 2001, CAT and i-Mobile agree that the Company shall
increase its registered capital to 950,000,000 Baht (Nine hundred and fifty
million Baht) within 60 (Sixty) days from the day following the date on which
the new juristic entity is transformed or converted from CAT as stated above and
the Parties shall hold the newly issued in accordance with the following
proportions:

                        2.3.1.1 CAT: 26% of the total shares of the Company.

                        2.3.1.2 i-Mobile: 71% of the total shares of the
Company.

                2.3.2   In case that CAT is not yet transformed or converted
into a new juristic entity within September 30, 2001 as stipulated in Clause
2.3.1, CAT and i-Mobile agree that the Company shall increase its registered
capital to 950,000,000 Baht (Nine hundred and fifty million Baht) within 60
(Sixty) days as from October 1, 2001 and the Parties agree to hold the new
shares in accordance with the proportions stipulated in Clauses 2.3.1.1 and
2.3.1.2

        2.4     In case that CAT is not ready to hold shares issued by
virtue of the increase of capital according to its proportion under Clause 2.3,
i-Mobile agrees to buy the newly issued shares under Clause 2.3 in order to
maintain its proportion of 71% of the total shares of the

<PAGE>

                                     - 56 -

Company and to purchase the whole proportion of newly issued shares of CAT which
equals to 26% of the total shares of the Company. i-Mobile agrees to completely
transfer the whole proportion of newly issued shares of CAT which equals to 26%
of the total shares of the Company to CAT at the par value of Baht 10 (Ten Baht)
per share within 15 (Fifteen) days from the date on which i-Mobile receives a
notice in writing from CAT, provided CAT needs not make payment for those newly
issued shares.

        2.5     CAT and i-Mobile agree to exercise their voting right as the
shareholders for the increase of the Company's registered capital according to
Clause 2.3, and to take action according to Clause 2.4.

        2.6     When i-Mobile has purchased the shares issued by virtue of the
increase of capital according to Clause 2.4, i-Mobile agrees that both before
and after the date on which i-Mobile transfers the newly issued shares to CAT
according to Clause 2.4, CAT still has rights and duties stipulated under this
Agreement and i-Mobile agrees to cause CAT to receive the dividends stipulated
under Clause 9 according to CAT's shareholding proportion of 26% of the total
shares in the Company in all respects.

        2.7     All shareholders, except CAT, shall make payment for such newly
issued shares in cash within 60 (Sixty) days from the date of receipt of a
notice in writing from the Company.

        2.8     i-Mobile agrees to make full payment for CAT's newly issued
shares before the increase of capital under Clause 2.3 as well as for CAT's
newly issued shares under Clauses 2.3 and 2.4 in place of CAT in cash within the
period of time for payment thereof as required by the Company. Thus, CAT needs
not make payment for those shares.

                The first paragraph shall apply only in the case of the
increase of capital for the purpose of the Marketing Service of the Mobile
Telephone Under the Cellular Digital AMPS 800 Band A System of CAT. The increase
of capital for other purpose shall require prior approval of CAT, and CAT must
pay for the shares newly issued that CAT must pay by itself as follows:

                a.      Payment equal to 50% of the amount of each call shall be
made within 60 (Sixty) days of the date of receipt of notice in writing from the
Company.

                b.      Payment of the balance equal to 50% shall be made within
60 (Sixty) days of the due date of payment under Clause 2.8 a without any
interest thereon.

        2.9     If i-Mobile does not make payment for the new share issued as a
result of the increase of capital as stipulated in Clause 2.8 in place of CAT
within the period of time for payment thereof required by the Company, i-Mobile
shall make payment therefor and shall pay the interest thereon to CAT at the
rate of 1.25 (One point two five) per cent per month commencing from the due
date of payment until the date on which such payment is made in full. A fraction
of a month shall be treated as one month.

CLAUSE 3.       TRANSFER OF SHARES

        3.1     The transfer of shares of i-Mobile under this Agreement must
receive prior consent in writing from CAT and the transferee shall enter into an
agreement with the other party under the terms as stipulated in this Agreement.

                If any of the Parties would like to sell all or part of its
shares, such party shall first

<PAGE>

                                     - 57 -

offer those shares to the other party by sending written notice to the other
party specifying the offering price. If the offeree fails to exercise its right
to purchase those shares within 60 (Sixty) days from the date of receipt of such
written notice, the offeror may, offer its shares to a third party who is not a
business competitor of the Company or CAT or CAT Group that provides the service
of mobile telephone under the cellular system, or of the juristic entity
receiving the rights and duties hereunder from CAT or a new juristic entity
transformed or converted from CAT or of a group of the juristic entity receiving
rights and duties hereunder from CAT pursuant to Clause 13.10 or of a group of
juristic entity transformed or converted from CAT that provide the service of
mobile telephone under the cellular system, or of Hutchison Group which provides
the service of mobile telephone under the cellular system, subject to the
following conditions:

                (a)     the number of shares sold equals to the number of shares
offered to the offeree;

                (b)     the price per share is not less than the price offered
to the offeree;

                (c)     the terms and conditions of the offer are not better
than those offered to the offeree.

                The restriction on share transfer under the second paragraph
shall not apply to the disposal of shares by either party to its subsidiary or
affiliated company which is not a business competitor of the Company, or the
disposal of shares of CAT to a juristic entity receiving the assignment of
rights and/or duties hereunder from CAT pursuant to Clause 13.10, paragraph one,
and/or a juristic entity transformed or converted from CAT pursuant to Clause
13.10, paragraph two, or a subsidiary company or affiliated company of CAT or a
subsidiary company or affiliate company of the juristic entity receiving the
assignment of rights and/or duties hereunder from CAT pursuant to Clause 13.10,
paragraph one and/or the juristic entity transformed or converted from CAT
pursuant to Clause 13.10 paragraph two, or a foreign company which is a
strategic partner of CAT which is not a business competitor of the Company or a
business competitor of Hutchison Group that provides the telecommunication
service under the cellular system.

        The transfer of shares by i-Mobile under the second and third
paragraph does not require the prior consent of CAT, provided that the
transferee must enter into an agreement with other parties under the same terms
and conditions as stipulated herein.

        The term "business competitor of the Company" means a person or
juristic person providing telecommunications service under the cellular system
in Thailand and a person undertaking marketing service of the mobile telephone
under the cellular system in Thailand including an affiliated company of such
person or juristic person, and a foreign company which is a strategic partner of
CAT in the telecommunications business that is the business of mobile telephone
service under the cellular system in Thailand.

        The term "subsidiary company" means

        (1)     A company in which CAT or the juristic entity receiving the
transfer of rights and/or duties hereunder from CAT according to Clause 13.10,
paragraph one, or the juristic entity transformed or converted from CAT
according to Clause 13.10, paragraph two or i-Mobile

<PAGE>

                                     - 58 -

holds shares in excess of 50 per cent of its total shares.

        (2)     A company in which the company under (1) holds shares in excess
of 50 per cent of its total shares.

        (3)     A company of which the shares are held in respective order
beginning from the shareholding by the company under (2) in the company of which
the shares are being held by it, provided that the shareholding in such company
in each order is in excess of 50 per cent of the total shares of the company of
which shares are so held.

        (4)     The company of which the shares are held by either CAT or the
juristic entity receiving the transfer of rights and/or duties hereunder from
CAT according to Clause 13.10, paragraph one or i-Mobile, or the juristic entity
transformed or converted from CAT according to Clause 13.10, paragraph two, or
the company under (1) (2) or (3) in the aggregate more than 50 per cent of the
total shares of the company of which the shares are so held.

        The term "affiliated company" means a company that has absolute power
to control or direct the policies of related companies, or a company in which
the related company has absolute power to control or direct its policies, in
either case whether by the holding of voting securities, by contract or
otherwise.

        The rights and duties of CAT which are not the same as those of other
shareholders under the conditions of this Agreement shall not be transferred to
the transferee of CAT's shares, except for the transfer of shares to the
juristic entity receiving the transfer of rights and/or duties hereunder from
CAT according to Clause 13.10, paragraph one and/or to the juristic entity
transformed or converted from CAT according to Clause 13.10, paragraph two, or
to a subsidiary or affiliated company of CAT, or the juristic entity receiving
the transfer of rights and/or duties hereunder from CAT, or the juristic entity
transformed or converted from CAT as stated above.

        3.2     i-Mobile agrees to give right to CAT to swap the shares which
CAT holds in the Company with the shares of i-Mobile or BFKT (Thailand) Ltd.,
provided that those shares of i-Mobile or BFKT (Thailand) Ltd. shall have the
value equivalent to the value of the shares which CAT holds in the Company.

        3.3     i-Mobile agrees to cause the Hutchison Telecommunications
Investment Limited to maintain its shareholding proportion of at least 49% of
the total number of shares in i-Mobile for a period of 3 (Three) years from the
date on which i-Mobile accepts the transfer of 65% of the total number of shares
in the Company or until the date on which the Company is listed on the Stock
Exchange in case that the Company is listed on the Stock Exchange prior to the
expiry of the aforesaid 3-year period, and of at least 35% of the total number
of shares in i-Mobile for a period of 2 (Two) years following the expiry of such
3-year period as from the date on which i-Mobile accepts the transfer of 65% of
the total number of shares in the Company or until the date on which the Company
is listed on the Stock Exchange in case that the Company is listed on the Stock
Exchange prior to the expiry of such 2-year period.

<PAGE>

                                     - 59 -

CLAUSE 4.       LISTING OF THE COMPANY ON THE STOCK EXCHANGE

        The Parties agree that if any company is to be listed on the Stock
Exchange, the Parties shall cause the Company to be listed on the Stock
Exchange. In case that other company is to be listed on the Stock Exchange, the
Parties shall cause the Company to be part of the business listed on the Stock
Exchange.

        When the Company is listed on the Stock Exchange, i-Mobile must maintain
its shareholding proportion in the Company at not less than 20% of the total
number of shares in the Company and CAT must maintain its shareholding
proportion in the Company at not less than 7.32% of the total number of shares
in the Company for a period of 2 years from the date on which the Company is
listed on the Stock Exchange.

        If i-Mobile wishes to decrease its shareholding proportion to less than
20%, or CAT wishes to decrease its shareholding proportion to less than 7.32% as
stated above, i-Mobile or CAT must first offer those shares together with the
offering price to the other party (right of first refusal) by giving written
notice thereof to the other party as stipulated in Clause 3.1.

CLAUSE 5.       MEETING OF SHAREHOLDERS

        5.1     The Company's Board of Directors shall hold an Ordinary
Shareholders' Meeting within 4 (Four) months from the fiscal year end of the
Company. The agenda shall at lease include the following:

                5.1.1   The appointment of the Board of Directors of the Company
pursuant to Clause 6;

                5.1.2   The appointment of an auditor; and

                5.1.3   Approval of the audited balance sheet and profit and
loss accounts of the Company.

        5.2     Each shareholder shall have 1 (One) vote for each of the shares
he holds. The shareholders may present at the General Meeting of Shareholders
either in person or by proxy. The instrument appointing such proxy shall be made
in writing.

        5.3     Notices for every General Meeting of Shareholders shall be made
in writing and sent to each of the shareholders, listed in the Shareholders
Register, by registered mail with return receipt requested, at least 14
(Fourteen) days in advance. Such notice shall specify the place, date, time,
agenda and the status of the Company at such time.

                In case of necessity or emergency, the Company may send such
notices to shareholders, as mentioned in the preceding paragraph by registered
mail with return receipt requested, at least 7 (Seven) days in advance.

        5.4     The quorum of the General Meeting of Shareholders shall consist
of shareholders

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                                     - 60 -

or proxies holding not less than one-half of the total shares of the Company
present in such meeting.

        5.5     The Chairman of the Board of Directors of the Company shall
preside at every General Meeting of Shareholders. If the Chairman of the Board
of Directors is not present, the Vice Chairman of the Board of Directors shall
preside at that meeting. If the Chairman and the Vice Chairman are not present,
the shareholders present in that meeting will elect a Director to be the
chairman of the meeting.

        5.6     Ordinary resolutions of the General Meeting of Shareholders
shall require the votes not less than one-half of the total number of shares of
all shareholders present at the meeting, except for the following matters which
shall require the votes not less than three-fourths of the total shares of the
Company:

                5.6.1   Subject to Clause 9, the approval for the distribution
of dividends or appropriation to a reserve fund.

                5.6.2   The engagement in any business not related or incidental
to the provision of telecommunications services.

        5.7     The Board of Directors of the Company may hold an Extraordinary
Shareholders' Meeting whenever the Board of Directors finds it necessary or upon
request made by any party/parties or shareholder/shareholders who singly or
collectively hold(s) not less than one-fifth of the total shares.

        5.8     The undertaking of the following matters shall be made only by
special resolution of the General Meeting of Shareholders and shall first be
approved by CAT:

                5.8.1   Amendment of the Memorandum or Articles of Association
other than the amendment pursuant to the resolution of the Cabinet;

                5.8.2   Change in the shareholding proportion of i-Mobile in the
Company except for the cases under Clause 3.1, paragraph two and paragraph
three;

                5.8.3   Transfer of all or part of the shares of i-Mobile in the
Company except for the case under Clause 3.1, paragraph two and paragraph three;

                5.8.4   Increase or reduction of the registered capital of the
Company;

                5.8.5   Dissolution of the Company;

                5.8.6   Amalgamation;

                5.8.7   Change of the Company's status to be a public company;
and

<PAGE>

                                     - 61 -

CLAUSE 6.       THE BOARD OF DIRECTORS

        6.1     The Board of Directors of the Company shall consist of
the Directors nominated by the respective Parties as follows:

                6.1.1   CAT to nominate:
                        1 Vice Chairman of the Board
                        2 Directors

                6.1.2   i-Mobile to nominate:
                        1 Chairman of the Board
                        4 Directors
                        1 Managing Director

                Total   9 Directors

                Except as provided for in Clauses 2.3, 2.4, 2.5 and 2.6, if CAT
or i-Mobile sells or disposes of or transfers its shares in the Company to the
other party or a third person or otherwise which causes the shareholding
proportion of CAT or i-Mobile in the Company to decrease, or if CAT or i-Mobile
purchases or accepts the disposal or transfer of shares held by the other party
in the Company from the other party, or if CAT or i-Mobile purchases or accepts
the disposal or transfer of shares held by a third person in the Company from
such third person which causes the shareholding proportion of CAT or i-Mobile to
increase, the right to nominate persons for the appointment as directors of the
Company of the party whose shareholding proportion in the Company is increased
or decreased shall be amended such that the said party shall have the right to
nominate 1 director of the Company for each shareholding proportion of 10 per
cent of the total shares in the Company. For the purpose of this Clause, the
shareholding between 5 per cent and 10 per cent of the total shares of the
Company shall be treated as each shareholding proportion of 10 per cent of the
total shares in the Company.

                Irrespective of the shareholding proportion of CAT in the
Company, CAT shall always have the right to nominate at least 1 director of the
Company.

                In case of vacancy in any position in the Board of Directors
of the Company, a new Director shall be appointed through the nomination of the
party being entitled to nominate the Director in such vacant position.

                Each Party shall always vote at the shareholders meeting in
support of the resolution for the appointment or change of the directors
nominated by the other Party as mentioned in the first paragraph

                The Parties shall ensure that the Directors nominated by each
of them shall vote or act in accordance with the terms and conditions of this
Agreement including the resolutions of the Board of Directors or the resolutions
of the general meeting of shareholders which have been duly adopted according to
the terms and conditions hereof.

        6.2     The Board of Directors of the Company shall have the following
duties:

<PAGE>

                                     - 62 -

                6.2.1   Determining the business direction and strategy of the
Company;

                6.2.2   Approving the business plan of the Company;

                6.2.3   Determining the financial and investment plans;

                6.2.4   Controlling the operation of the Company in order to be
in compliance with the business plan and the budgets;

                6.2.5   Issuing regulations and fixing the duties, authority and
remuneration package of the Managing Director of the Company and other executive
officers;

                6.2.6   Approving the audited balance sheet and profit and loss
accounts of the Company and proposing the same to the meeting of shareholders
for approval;

                6.2.7   Supervising the management and administration of
business of the Company for the best interests of the Company in accordance with
the Articles of Association of the Company and the resolution(s) of the General
Meeting of Shareholders;

                6.2.8   Entrusting the Managing Director with duties and
responsibilities as it deems appropriate;

                6.2.9   Approving the guidelines for determining the
remuneration package of staff (other than the executive officers referred to in
Clause 6.2.5) and approving the bonus of all staff (including executive
officers);

                6.2.10  Fixing the policy and rate(s) of service fee to make it
consistent with the market condition.

                The Parties agree that the Directors appointed through the
nomination of each respective Parties shall be entitled to engage in any
business of the same nature as of the business of the Company, and subsequent to
the statutory meeting, the General Meeting of Shareholders shall resolve to
consent to such engagement pursuant to Section 1168 of the Civil and Commercial
Code, provided always that all the Directors still have the duties to act for
the best interests of the Company.

        6.3     The Vice Chairman of the Board and Directors appointed through
the nomination of CAT under Clause 6.1.1, shall be CAT personnel.

        6.4     A Director need not be shareholder of the Company.

        6.5     One of the Directors nominated by CAT and one of the Directors
nominated by i-Mobile whom are assigned by the Company's Board of Directors
shall be authorized to enter into any juristic act and to sign any document to
bind the Company.

<PAGE>

                                     - 63 -

        6.6     At the first Ordinary Shareholders' Meeting in each year,
one-third of the Directors, or, if their number is not a multiple of three, then
the number nearest to one-third must retire from office.

                The Directors to retire during the first and second years
subsequent to the execution of this Agreement shall be drawn by lots. In every
subsequent year, the Directors who have been longest in office shall retire.

                The retiring Directors are eligible for re-election.

        6.7     Quorum of the Meeting of the Board of Directors of the Company
shall be the presence, whether in person or by proxy, of more than one-half of
the total number of directors. The Chairman of the Board shall be the Chairman
of the meeting, or if the Chairman of the Board is not present, the Vice
Chairman of the Board shall then be the Chairman of the meeting. If the Chairman
of the Board and the Vice Chairman of the Board are not present, the Directors
present may choose one of their members to be chairman of such meeting.

        6.8     Notwithstanding the number of Directors or their proxies who are
present at any Meeting of the Board of Directors and thereby constitute a
quorum, resolutions of the Meeting of the Board of Directors in the following
matters shall require the votes not less than one-half of the total number of
directors present at the meeting and one of which shall always be the vote of
the Director nominated by CAT:

                6.8.1   Any policy other than the principal objective(s) of the
Company which bears a risk;

                6.8.2   Change of any major policy which has generally been
implemented in the operations of the Company;

                6.8.3   Subject to Clause 9, payment of interim dividends;

                6.8.4   Amendment of the Memorandum or Articles of Association
of the Company;

                6.8.5   Increase or decrease in registered capital;

                6.8.6   Dissolution or amalgamation of the Company;

                6.8.7   Sale, mortgage, creation of any encumbrance or disposal
of any asset of the Company with a value in excess of Baht 500 million (Five
hundred million Baht);

                6.8.8   The entering into any commitment for a period of more
than 10 (Ten) years;

                6.8.9   Change of the Company's status to be a public company;

<PAGE>

                                     - 64 -

                6.8.10  Planning of annual administrative plan;

                6.8.11  The entering into a borrowing agreement or lending of
fund to any person or giving guarantee in excess of Baht 500 million (Five
hundred million Baht);

                6.8.12  The institution of composition process by arbitration or
judicial proceedings;

                6.8.13  The creation of encumbrances over the Company's rights
and assets to a third party except as permitted according to the agreement made
with CAT;

                6.8.14  Transfer of the Company's assets to a third party other
than in the normal course of business of the Company; and

                6.8.15  Operation of the Company's business outside the main
objectives of this Agreement.

                In the case that the Annual Budget for any year is not
approved by the Board of Directors, then the Annual Budget of the previous year
shall apply for such year until the Board of Directors approves the Annual
Budget for such year.

        6.9     Any resolution of the Meeting of the Board of Directors of the
Company other than those stipulated in Clause 6.8 shall require the votes not
less than one-half of the total number of directors present at the meeting.

        6.10    At any of such meeting, the Chairman of the Board and each
Director shall have 1 vote each.

        6.11    Each Director is entitled to appoint a proxy to attend and vote
on his behalf, at any meeting, provided each appointment shall be made in
writing and shall be presented to the chairman of any of the Meeting of the
Board of Directors at or before the beginning of such meeting.

        6.12    The Meeting of the Board of Directors shall be held at least
once every 3 (Three) months.

        6.13    Notices to the Meeting of the Board of Directors shall be given
to the Directors not less than 7 (Seven) days in advance. The notice requirement
may be waived if all the Directors agree.

        6.14    Any action required or permitted to be taken at any Board of
Directors meeting may be taken without convening a meeting if a resolution in
writing, setting forth the action to be so taken, is signed by all the Directors
and shall take effect as of the date of the signature of the last Director who
signs. Any such resolution may consist of several documents in like form,

<PAGE>

                                     - 65 -

each signed by one or more Directors. The duly signed resolution shall be
delivered to the Chairman and placed in the minutes book of the Company.

        6.15    A Director may attend the meeting by way of telephone or video
conference. In such case, no proxy is allowed. The quorum and passing of
resolution of the meeting in which one or more Director(s) participate(s) by way
of telephone conference shall be the same as those specified in Clauses 6.7, 6.8
and 6.9.

CLAUSE 7.       MANAGING DIRECTOR

        7.1     The Managing Director is authorized to manage the Company
businesses, in accordance with the policy laid down by the Board of Directors of
the Company, in order to achieve the maximum benefit to the Company. The
Managing Director shall be responsible to report the result of the operation to
the Board of Directors of the Company including to suggest matters which will be
beneficial to the Company and to supervise the performance of the Company's
employees as he deems it appropriate.

        7.2     The appointment, transfer and change of the Managing Director or
the appointment of a substitute to replace the Managing Director who has
resigned, been disqualified or died, shall be in accordance with the approval
given by the General Meeting of Shareholders.

        7.3     The Managing Director is required to propose, to the
consideration of the Board of Directors, any matters which are beyond the powers
and duties entrusted to him by the Board of Directors.

CLAUSE 8.       RECRUITMENT AND APPOINTMENT OF THE MANAGEMENT

        8.1     The Board of Directors shall recruit and appoint, from persons
suggested by the Managing Director, members of the Management to operate the
businesses of the Company in accordance with the policy of the Board of
Directors.

        8.2     The Management shall at least report the following matters to
the Board of Directors:

                8.2.1   Matters to be reported monthly:

                        8.2.1.1     Result of the monthly operations;

                        8.2.1.2     Report on financial status;

                        8.2.1.3     Report on other matters as required by the
Board of Directors.

                8.2.2   Matters to be reported annually:

                        8.2.2.1     Annual Budget;

<PAGE>

                                     - 66 -

                        8.2.2.2     Annual Operational Plan;

                        8.2.2.3     3 (Three) years and 5 (Five) years Business
Plan;

                        8.2.2.4     Report on other matters as required by the
Board of Directors.

CLAUSE 9.       PAYMENT OF DIVIDEND

        The Company shall, in accordance with the resolutions of the Board of
Directors and the General Meeting of Shareholders, pay dividend from the net
profit derived in that fiscal year or of the then accumulated profit available
for distribution, subject to the appropriation of prudent reserves for the
forthcoming year as the Board shall think necessary.

CLAUSE 10.      ACCOUNTS AND AUDITOR

        10.1    The Company shall adopt the generally accepted accounting
        principles in Thailand.

        10.2    The fiscal year of the Company shall commence on January 1 and
end on December 31 of the same year.

        10.3    The auditors shall be appointed from the persons in
PricewaterhouseCoopers or other international auditing office as shall be
approved by the shareholders meeting.

CLAUSE 11.      AMENDMENT

        11.1    Any addition to, modification, adjustment or amendment of this
Agreement, other than those made by virtue of the Cabinet resolution, shall, by
an unanimous resolution of the Parties hereto, be made in writing and signed by
the Parties in the same manner as required in the signing of this Agreement.

                In case where there is a Cabinet resolution during the term of
this Agreement which makes it necessary to effect any addition to, modification,
adjustment or amendment of this Agreement, the Parties agree to effect the same
to make this Agreement consistent with such Cabinet resolution.

        11.2    If it appears at any time that any provision of this Agreement
is held to be invalid, illegal or unenforceable in any respect, such provision
shall be fully several and this Agreement shall be construed and enforced as if
such invalid, illegal or unenforceable provision never comprised a part hereof.
The Parties agree to effect any of the acts as stipulated in Clause 11.1 to
reach a provision(s) which is/are valid, legal and enforceable in lieu of such
invalid, illegal or unenforceable provisions and which is attainable to the
business objective or objective as much as possible.

<PAGE>

                                     - 67 -

CLAUSE 12.      OPERATIONS OF THE COMPANY

        To enable CAT to participate in the operation and to orientate itself
to the business management of a private company, the Parties agree that, CAT may
designate its personal to join in the administrative, managerial and service
operational levels of the Company, and the Company shall, throughout the term of
this Agreement bear all costs relating to expenses, salary, wage, overtime
payment, bonus and other welfare and other monies for such CAT personnel. CAT
and the Company shall jointly fix the direction and duration of service,
position, number of staffs and other conditions as CAT and the Company deem it
appropriate.

CLAUSE 13.      MISCELLANEOUS

        13.1    In the event of a conflict or inconsistency between the terms of
this Agreement and the Articles of Association of the Company, the terms of this
Agreement shall prevail, and the Company shall amend the stipulations of the
Articles of Association to make them consistent with the stipulations of this
Agreement.

        13.2    Force majeure shall be interpreted in accordance with the Civil
and Commercial Code.

        13.3    All agreements, stipulations or writings made or entered into
prior to the execution of this Agreement and which are contradictory to this
Agreement, shall have no binding effect upon the Parties. The Parties shall be
bound by this Agreement and any agreement to be subsequently entered into after
the date hereof.

        13.4    The Parties shall conclude the Memorandum and Articles of
Association of the Company in line with the stipulations of this Agreement.

        13.5    Subject to Clause 6.8, i-Mobile shall be responsible to arrange
loans, guarantee such loans and/or provide the guarantor thereof to enable the
Company to operate under its objectives and in accordance with the obligations
under this Agreement, so as to achieve the maximum benefit to the Company.

        13.6    i-Mobile shall not assign its rights and obligations under this
Agreement to any third party unless with prior written consent of CAT.

        13.7    The operation of business under this Agreement shall not render
any parties holding shares alongside with CAT or any employees of such parties
to become CAT personnel.

        13.8    This Agreement shall be construed in accordance with the law of
Thailand. The interpretation of any question arisen out of this Agreement or any
documents relating to the same, shall be made in accordance with the law of
Thailand.

        13.9    In case of any dispute, conflict or claim arising out of or in
connection with this Agreement including the breach, termination or validity of
this Agreement, the Parties wish to have the same settled by arbitration in
accordance with the UNCITRAL Arbitration Rules applicable at the time of
submission of the dispute to arbitration or other arbitration rules as may

<PAGE>

                                     - 68 -

be agreed by both parties.

                The arbitral tribunal shall consist of three arbitrators, one
of whom appointed by CAT and one by i-Mobile. The two arbitrators shall then
jointly appoint the third arbitrator to be the chairman of the arbitral
tribunal. If the two arbitrators cannot reach an agreement, the Director of the
Arbitration Office, Ministry of Justice shall then appoint the third arbitrator.
The arbitration shall be conducted in Bangkok Metropolis, Thailand in the Thai
language.

        13.10   CAT reserves the right to assign its rights and/or duties
hereunder to other juristic entity established under the Act in order to take
over the telecommunication business of CAT, whereupon it shall be deemed that
i-Mobile has unconditionally agreed and consented to such assignment. CAT shall
give a notice of such assignment of rights and/or duties to i-Mobile in writing.

                In case of the change of status or conversion of CAT into a
new juristic entity, i-Mobile shall agree and consent to the assignment of CAT's
rights and/or duties hereunder to such new juristic entity for the purpose of
the continuation of relevant businesses hereunder.

                i-Mobile agrees and consents to waive its right to make any
objection, protest or claim as a result of the assignment of rights and/or
duties under the first and second paragraph, and agrees to give its consent to
the assignment of rights and/or duties hereunder to the new juristic entity
under the first and second paragraph in all respects.

CLAUSE 14.      NOTICES TO SHAREHOLDERS

        14.1    All notices relating to this Agreement shall be made in writing
and sent to each respective Parties by registered mail with return receipt
requested, at the addresses stipulated in Clause 14.2.

        14.2    Addresses of each of the Parties on the date hereof are:

                14.2.1  CAT with its head office located at No. 99 Mu 3, Chaeng
Watthana Road, Kwaeng Thung Song Hong, Khet Laksi, Bangkok Metropolis 10002.

                14.2.2  i-Mobile with its head office located at No. 990
22nd-25th Floors, Rama IV Road, Khwaeng Silom, Khet Bangrak, Bangkok Metropolis
10500.

        14.3    Any party intending to change its address from that stipulated
in Clause 14.2, shall be required to notify the other party not less than 3
(Three) days prior to such change.

CLAUSE 15.      PERFORMANCE SECURITY

        15.1    Within 7 days after the date on which i-Mobile has duly accepted
the transfer of shares and the share certificates of the Company as provided in
Clause 16, to guarantee the performance under this Agreement, i-Mobile shall
provide a Letter of Guarantee in the amount

<PAGE>

                                     - 69 -

of Baht 487,500 (Four hundred eighty seven thousand five hundred Baht) to CAT as
the performance security under this Agreement.

        15.2    If i-Mobile is in breach of any stipulation of this Agreement
and fails to rectify the same within 60 (Sixty) days from the date of being
notified by CAT, i-Mobile consents for CAT to confiscate the security or to
immediately claim the bank issuing the Letter of Guarantee for payment of such
amount guaranteed.

        15.3    i-Mobile shall be able to recover the security provided under
this Agreement upon the release of its obligations hereunder.

CLAUSE 16.      EFFECTIVE DATE

        This Agreement shall be effective as from the date on which i-Mobile has
duly accepted the transfer of shares from Tawan in accordance with the Agreement
for Assignment of Rights, Duties and Liabilities under the Shareholders
Agreement of Tawan Mobile Telecom Company Limited between CAT, Tawan and
i-Mobile dated.................

CLAUSE 17.      TERMINATION RIGHT

        i-Mobile agrees to cause Tawan to duly and completely transfer its
shares of approximately 65% to i-Mobile within 45 (forty-five) days from the day
following the execution date hereof. If Tawan fails to transfer those shares to
i-Mobile and/or i-Mobile refuses to accept the transfer of those shares from
Tawan in full and complete order with the prescribed time, i-Mobile agrees that
CAT may immediately terminate this Agreement without prior notice.

CLAUSE 18.      TERMINATION OF THE AGREEMENT

        If any party is no longer a shareholder of the Company, this Agreement
shall become unenforceable only in respect of such party but shall remain
enforceable to the party that still holds shares in the Company; except that in
case of the transfer of shares of CAT to a juristic entity receiving the rights
and/or duties hereunder from CAT according to Clause 13.10, paragraph one,
and/or the juristic entity transformed or converted from CAT according to Clause
13.10, paragraph two, or a subsidiary company or affiliated company of CAT or of
the juristic entity receiving the transfer of rights and/or duties hereunder
from CAT according to Clause 13.10, paragraph one and/or of the juristic entity
transformed or converted from CAT according to Clause 13.10, paragraph two, the
Parties agree that this Agreement shall remain enforceable in respect of the
transferee of shares from CAT.

        The terms "subsidiary company" and "affiliated company" under the first
paragraph shall have the meanings as ascribed in Clause 3.1.

CLAUSE 19.      ATTACHMENTS

        The following documents are attached hereto and shall be deemed as part
hereof:

<PAGE>

                                     - 70 -

        19.1    The Certification Document (Affidavit) of i-Mobile Holdings Co.,
Ltd. issued by the Bangkok Metropolis Partnerships and Companies Registration
Office.

        Any terms in the attachments conflicts to this agreement, the term in
this agreement shall be prevail.

        This Agreement is made in duplicate with identical content. The Parties
have thoroughly read and understood the same and, therefore, set their hands
together with their seal (if any) affixed in presence of witnesses, each holding
one copy.

<TABLE>
<S>                                                 <C>
The Communications Authority of Thailand            i-Mobile Holdings Company Limited

Signed /s/ Thirapong Suttinon                       Signed /s/ Stephen Wing Fai Sun
       ------------------------                            --------------------------
       (Mr. Thirapong Suttinon)                            (Mr. Stephen Wing Fai Sun)

Signed /s/ Ormsin Chevapruk Witness                 Signed /s/ Tim Tak Timothy Wong Witness
       ---------------------                               ------------------------
       (Mr. Ormsin Chevapruk)                              (Mr. Tim Tak Timothy Wong)

Signed /s/ Wattanachai Wattanasonthi Witness        Signed /s/ Wisit Kanjanopas Witness
       -----------------------------                       --------------------
       (Mr. Wattanachai Wattanasonthi)                     (Mr. Wisit Kanjanopas)
</TABLE>

<PAGE>

                                     - 71 -

Attachment 15.3

                             [GRAPHICS APPEARS HERE]
                         CDMA NETWORK TECHNICAL PROPOSAL

                                      [***]

<PAGE>

                                     - 72 -

Attachment 15.4
                                     Annex 1

  Province           District            Priority
-------------    ----------------    ----------------
Pathumthanee     Muang                              1
                 Lamlukka                           1
                 Tanyaburi                          1
                 Klongluang                         1
                 Sarmkok                            2
                 Lardlumkaew                        2
                 Nongsua                            3

Samutprakarn     Muang                              1
                 Prapradaeng                        1
                 Bangplee                           1
                 Bangbor                            2
                 Phra Samutjedee                    1
                 King Amphur
                 Bangsaothong                       2

Nonthaburi       Muang                              1
                 Pakkred                            1
                 Bangbuathong                       1
                 Bangkruay                          2
                 Bangyai                            2
                 Sainoi                             2

Petchaburi       Muang                              1
                 Thayang                            2
                 Cha-am                             1
                 Bann Laem                          3
                 Bann Lard                          3
                 Khao Yoy                           2
                 Kangkrajan                         3
                 Hard Chao Samran                   1

Kanjanaburi      Muang                              1
                 Thamuang                           1
                 Thamaka                            1
                 Phanomthuan                        2
                 Laokwan                            3
                 Borploy                            2
                 Saiyok                             2
                 Thongpapoom                        2
                 Sangklaburi                        2
                 Srisawas                           2

Samutsakorn      Muang                              1
                 Krathumban                         1
                 Banpaew                            2

Lopburi          Muang                              1
                 Bann Mee                           1
                 Koksamrong                         2
                 Chaibadan                          1
                 Thawung                            2
                 Pattananikom                       2
                 Nongmuang                          3
                 Thaluang                           3
                 Sraboth                            3

<PAGE>

                                     - 73 -

                                     Annex 1

  Province           District            Priority
-------------    ----------------    ----------------
Ayudhaya         Muang                              1
                 Bangpa-in                          1
                 Sena                               1
                 Wangnoi                            2
                 Thanrua                            2
                 Bangsrai                           2
                 Pakhai                             2
                 Uthai                              2
                 Bangpahan                          3
                 Lardbualuang                       2
                 Bangban                            3
                 Nakornluang                        2
                 Phashee                            2
                 Maharaj                            3
                 Bangsai                            3
                 Bann Prak                          3

Srakaew          Muang                              1
                 Watthana-nakorn                    2
                 Aranyaprathes                      1
                 Wangnamyen                         2
                 Khao Chakan                        3
                 Thapraya                           3

Samutsongkram    Muang                              1
                 Amphawa                            2
                 Bangkhonthee                       3

Prachuabkirikhan Muang                              1
                 Thabsakae                          2
                 Bangsaphan                         2
                 Pranburi                           1
                 Hua Hin                            1
                 Sarm Roi Yod                       3
                 Kuiburi                            3
                 Bangsaphannoi                      3

Singhburi        Muang                              1
                 Inburi                             2
                 Bangrachan                         3
                 Kaibangrachan                      3
                 Phromburi                          3
                 Thachang                           3

Saraburi         Muang                              1
                 Kangkoi                            1
                 Nongkhae                           1
                 Phraphuttabat                      1
                 Muaklek                            1
                 Bann Mor                           2
                 Wiharndaeng                        3
                 Saohai                             3
                 Wangmuang                          3
                 Nongsang                           3
                 Nongdon                            3
                 Kornphud                           3

<PAGE>

                                     - 74 -

                                     Annex 1

  Province           District           Priority
-------------    ----------------    ----------------
Trad             Muang                              1
                 Khao Saming                        2
                 Laem ngob                          2
                 Klongyai                           2
                 Bor Rai                            3
                 Kor Chang                          3

Chonburi         Muang                              1
                 Sriracha                           1
                 Panasnikom                         1
                 Sattahip                           1
                 Banglamung                         1
                 Bann Bung                          1
                 Phanthong                          3
                 Bor Thong                          3
                 Nongyai                            3
                 Pattaya                            1
                 Laemchabang                        1
                 Borwin                             1

Chanthaburi      Muang                              1
                 Thamai                             2
                 Soidao                             3
                 Klung                              1
                 Pongnamron                         3
                 Laem Singh                         3
                 Bann Nai Arm                       2
                 Makham                             3

Chachoengsao     Muang                              1
                 Bangpakong                         1
                 Bangnamprew                        2
                 Phanomsarakam                      1
                 Sanamchaikhet                      3
                 Bangkla                            1
                 Bann Po                            3
                 Plangyao                           3
                 Rajasarn                           3

Ratchaburi       Muang                              1
                 Bann Pong                          1
                 Photharam                          1
                 Damnensaduak                       1
                 Pak Thor                           2
                 Jombung                            2
                 Bangphae                           3
                 Suanpeung                          3

Nakornpathom     Muang                              1
                 Sarmpran                           1
                 Kampangsaen                        2
                 Nakornchaisri                      1
                 Banglen                            2
                 Don Toom                           3

Nakornnayok      Muang                              1
                 Bann Na                            2
                 Ongkarak                           3
                 Pakplee                            2

<PAGE>

                                     - 75 -

                                     Annex 1

  Province           District           Priority
-------------    ----------------    ----------------
Angthong         Muang                              1
                 Wiseschaicharn                     1
                 Po Thong                           3
                 Sawangha                           3
                 Chaiyo                             3

Suphanburi       Muang                              1
                 Songpheenong                       1
                 Uthong                             1
                 Bangplama                          2
                 Derm Bang- Nang
                 Buad                               1
                 Sriprachan                         2
                 Dan Chang                          2
                 Sarm Chuk                          2
                 Nongyachai                         3
                 Donjedee                           3

Rayong           Muang                              1
                 Klang                              1
                 Bann Chang                         1
                 Bann Kai                           2
                 Pattananikom                       3
                 Wangchan                           3
                 Kor Samed                          1
                 Pluakdaeng                         1
                 Mabtaphud                          1

Prachinburi      Muang                              1
                 Kabinburi                          1
                 Prachantakarm                      2
                 Srimahapo                          2
                 Nadee                              2
                 Bann Srang                         2<PAGE>

                                                                   EXHIBIT 10.75

CONFIDENTIAL INFORMATION REDACTED

                  (TRANSLATION FROM THE THAI LANGUAGE ORIGINAL)

                                    AGREEMENT
      FOR THE LEASE AND THE CONTRACT FOR IMPROVEMENT, REPLACEMENT, REPAIR,
           MAINTENANCE AND OPERATION OF TELECOMMUNICATIONS FACILITIES
                 FOR THE CELLULAR DIGITAL AMPS 800 BAND A SYSTEM

THIS AGREEMENT is made at the Communications Authority of Thailand of 99 Moo 3
Changwattana Road, Khwaeng Thungsonghong, Khet Laksi, Bangkok Metropolis 10002
on 16 October 2000.

BETWEEN:

1.      The Communications Authority of Thailand by Mr. Thirapong Suttinon,
        Governor of the Communications Authority of Thailand, hereinafter
        referred to as "CAT", on the one part;

2.      BFKT (Thailand) Limited, a limited company incorporated under the laws
        of Thailand, by Mr. Wai Man Edmund Sin, as evidenced by the
        Certification Document of the Partnerships and Companies Registration
        Office, Bangkok Metropolis No. Sor Or. 0057207 dated 9 October 2000,
        which is attached hereto and referred to in Clause 17.1, and having its
        head office located at 990 22nd-25th Floor, Rama IV Road, Khwaeng Silom,
        Khet Bangrak, Bangkok Metropolis 10500, hereinafter referred to as
        "BFKT", on the one part;

3.      Tawan Mobile Telecom Company Limited, a limited company incorporated
        under the laws of Thailand, by Mr. Ormsin Chevapruk and Mr. Anuwat
        Laikijrung, as evidenced by the Certification Document of the
        Partnerships and Companies Registration Office, Bangkok Metropolis No.
        Sor Or. 0057205 dated 9 October 2000, which is attached hereto and
        referred to in Clause 17.2, and having its head office located at 947
        Moo 12 Bangna-Trad Road, Khwaeng Bangna, Khet Prakanong, Bangkok
        Metropolis 10260, hereinafter referred to as "TMT", on the other part.

WHEREAS:        CAT has the right to provide and is an operator of the service
                of mobile telephone under the Cellular Digital AMPS 800 Band A
                System, and is desirous to lease the Facilities for the Cellular
                Digital AMPS 800 Band A System and to contract BFKT to undertake
                improvement, replacement, repair, maintenance and operation of
                those Facilities for the Cellular Digital AMPS 800 Band A
                System.

NOW, THEREFORE, the three parties who, unless specifically referred to, shall be
hereinafter collectively referred to as the "Parties", hereby agree as follows:

<PAGE>

                                      - 2 -

CLAUSE  1.      DEFINITIONS

        In this Agreement:

        Facilities            Means the mobile telecommunications equipment and
                              accessories under the Cellular Digital AMPS 800
                              Band A System which are comprised of switching
                              subsystem, base station subsystem, networking
                              subsystem, ancillary equipment of switching system
                              and network system, test devices and radio system
                              analysis equipment including hardware and software
                              for the said equipment and accessories as well as
                              the equipment and accessories for the provision of
                              additional services relating to the mobile
                              telephone under the Cellular Digital AMPS 800 Band
                              A System of CAT as well as all requisites for
                              those said Facilities;

        Force Majeure         Means any event outside the reasonable control of
                              either party that prevent such party from
                              implementing this Agreement, such as storm, flood,
                              fire or peril or other similar natural calamity,
                              riot or civil commotion, usurpation, embargo,
                              blockage, accident during transportation of the
                              Facilities, strike, war, unreasonably delay by
                              government agency or any other state enterprise in
                              providing necessary service requested by such
                              party;

        Independent           Auditor Means a firm of independent auditors of
                              international standing jointly chosen by BFKT and
                              CAT or, if they are unable to agree, nominated by
                              the President for the time being of the
                              Association of Certified Public Accountants of
                              Thailand;

        Lease Fee             Means the Lease Fee for the Facilities;

        Marketing Agreement   Means the Agreement for Marketing Service of
                              Mobile Telephone Under the Cellular Digital AMPS
                              800 Band A System of CAT dated 14 August 1996, as
                              amended by the Amendment No. 1/2540 to the
                              Agreement for Marketing Services dated 1 April
                              1997 and the Amendment No. 2/2543 dated ..........
                              between CAT and TMT;

        Metropolitan          Means the area of Bangkok Metropolis and
                              Nonthaburi, Samutprakarn, Pathumthani, Prachuab
                              Kirikhan, Petchburi, Ratchaburi, Kanchanaburi,

<PAGE>

                                      - 3 -

                              Nakorn Pathom, Samutsongkram, Samutsakorn,
                              Suphanburi, Ayudhaya, Angthong, Lopburi, Singburi,
                              Prachinburi, Nakorn Nayok, Srakaew, Chonburi,
                              Chachoengsao, Rayong, Chantaburi, Trad.

        Operating Expenses    Means expenses incurred by BFKT in operating the
                              Facilities which include installment and lease fee
                              for the transmission back bone and equipment,
                              staff wage, cost of public utilities, expense for
                              management and operating staff and related
                              overheads, lease fee and expenses for office and
                              office equipment, insurance premiums and other
                              expenses relating to the operation of the
                              Facilities;

        Upcountry             Means other provinces outside the Metropolitan.

        Wage                  Means the wage for the improvement, replacement,
                              repair and maintenance of the Facilities;

CLAUSE 2.       LEASE OF FACILITIES

        2.1     CAT agrees to lease and BFKT agrees to let the Facilities
installed under Clause 2.5 and which are in service, in the number of not less
than [***] [(***)] cell sites which are owned and procured, imported, tested
and installed by BFKT in the condition that must be complete according to the
test under Clause 2.5, paragraph two, pursuant to the Technical Specification
and Operating Plan attached hereto and referred to in Clause 17.3 with BFKT's
own expenses, for CAT to use in the provision of service of mobile telephone
under the Cellular Digital AMPS 800 Band A System of CAT for a lease period
commencing as from the effective date of this Agreement until 21 April 2015.

                In case BFKT will procure, import, install and test the
Facilities which is not according to the Technical Specifications and Operating
Plan which are attached hereto and referred to in Clause 17.3, BFKT must make a
proposal to CAT for consideration and approval not less than 30 days before the
implementation thereof.

        2.2     The leased Facilities under Clause 2.1 must be brand new and
unused and must not be old stock, and must be owned by BFKT only. BFKT agrees to
warrant that all those Facilities are free from any and all derogation of
rights, execution, encumbrances or restrictions except that BFKT may give the
Facilities as security for the loan or credit to the lender of BFKT or to the
supplier of the Facilities of BFKT.

        2.3     BFKT shall ensure that the performance, specification and
capacity of the leased Facilities under Clause 2.1 are not inferior to the Code
Division Multiple Access of the manufacturers of the Cellular CDMA System and
the Technical Specifications and Operating Plan which are attached hereto and
referred to in Clause 17.3, and that those Facilities must be compatible with
the Cellular System already procured by CAT.

<PAGE>

                                      - 4 -

        2.4     The leased Facilities under Clause 2.1 must have the capacity to
handle the recipients of services which will be increased according to marketing
target under Clause 4 of the Marketing Agreement as well as the traffic volume
during busy hours of each promotion period without causing the standards of the
Grade of Service and Percentage of Drop Call during normal situation and
suitable duration to become inferior to the design pursuant to the Technical
Specification and Operating Plan under Clause 2.3. In case that CAT deems it
necessary to connect with other domestic network (roaming), the leased
Facilities under Clause 2.1 must have the capacity to accommodate the roaming.

        2.5     BFKT agrees to completely procure, import, test and install the
leased Facilities under Clause 2.1 in the Metropolitan and in service according
to the number of cell sites and period of time set forth below.

                2.5.1   [***] cell sites by 30 November 2001;

                2.5.2   Additional [***] cell sites by 30 November 2002;

                2.5.3   Additional [***] cell sites by 30 November 2003;

                2.5.4   At least additional [***] cell sites by 30 November
                        2004.

                The Facilities under the first paragraph shall be deemed to have
been completely installed and tested and be ready for service only when they
have passed the test according to the criteria prescribed in the document
attached hereto and referred to in Clause 17.4 and the representative of CAT has
participated in such tests and approved the results thereof. BFKT shall notify
CAT in writing not less than 7 CAT's business days before the test date. In case
that there is such an advance notification but CAT fails to send its
representative to participate in the test, the Parties agree that such test may
be conducted without the approval of CAT's representative.

                In each implementation of the plan of installation of the
Facilities under Clause 2.1, BFKT must give details of such plan to CAT not less
than 30 days before the commencement of the work.

        2.6     BFKT shall obtain a lawful license to use the leased Facilities
under Clause 2.1 as well as the software for those Facilities throughout the
lease term hereunder. BFKT must be responsible for the infringement of copyright
or patent of those Facilities as well as the software for those Facilities. If
any third party claims or exercises its claim that the copyright or patent
relating to the Facilities or the software for the Facilities is infringed, BFKT
must take all actions to settle that claim or exercise of claim without delay
and must bear all damages and expenses incurred therefrom.

        2.7     Subject to the conditions herein, BFKT agrees that it shall
neither dispose of or transfer the leased Facilities under Clause 2.1 to any
person or create any encumbrance or

<PAGE>

                                      - 5 -

restriction thereon, nor use those Facilities in its own business or allow other
person to lease or utilize them.

        2.8     Subject to the conditions herein, CAT shall have peaceful
enjoyment of the leased Facilities under Clause 2.1 without any interruption,
intervention or whatever act that may prevent CAT from utilizing the same,
whether by BFKT, its employee or agent, or person under its control.

        2.9     BFKT agrees to permit CAT and/or CAT's agent to access its
premises where the leased Facilities under Clause 2.1 are installed at all
reasonable time in order to inspect the same upon reasonable notice of CAT.

        2.10    BFKT must take out an insurance against all risks for the leased
Facilities under Clause 2.1 which are normally insurable for the full
replacement value thereof throughout the lease term hereunder with an insurance
company registered and operating insurance business in Thailand. BFKT shall pay
the insurance premiums and be designated a beneficiary so that BFKT shall use
the proceeds of the insurance agreement for repairing and/or procuring the
replacement Facilities in case of loss or damage.

        2.11    BFKT shall arrange for at least 10 (Ten) CAT staff or employees
to be provided with all overseas technical training by the manufacturer of the
Facilities for a period not less than 5 (Five) days each and in accordance with
the standards of training of each program, and shall arrange for at least 5
(Five) CAT staff or employee to observe the works in management and other
non-technical areas abroad for a period not less than 7 (Seven) days each. The
training or observation shall be arranged during the lease or whenever there is
a change in the system, and shall be divided into various phases throughout the
lease period of this Agreement. All expenses therefor shall be borne by BFKT.
The training and observation schedule shall be further agreed between CAT and
BFKT.

        2.12    CAT warrants that CAT has the right and authority to lease the
Facilities owned, procured, imported, installed and tested by BFKT under Clause
2.1, and to contract BFKT to carry out the improvement, replacement, repair,
maintenance and operation of the Facilities hereunder.

        2.13    CAT shall not make any change, alteration or addition to the
leased Facilities under Clause 2.1.

        2.14    CAT shall permit BFKT and/or an agent of BFKT to enter CAT's
premises where the leased Facilities under Clause 2.1 are installed at all
reasonable time in order to inspect the condition of the leased Facilities.

<PAGE>

                                      - 6 -

        2.15    CAT has not created, and shall not create or permitted the
creation by TMT or a third person of any lien, encumbrance or security interest
over the leased Facilities under Clause 2.1.

        2.16    CAT shall facilitate the import of the leased Facilities under
Clause 2.1 and the application for licenses under the Communications Radio Act
B.E. 2498 and other relevant laws from the responsible agencies in the name of
CAT.

        2.17    As for the Facilities which CAT leases from the Network Company
under Clause 2.1, CAT or a juristic person that accepts the transfer of rights
and/or duties from CAT and/or a juristic person transformed or converted from
CAT or a subsidiary company or affiliated company of CAT, or of the juristic
person that accepts the transfer of rights and/or duties from CAT, or of a
juristic person transformed or converted from CAT according to the Shareholders
Agreement of Tawan Mobile Telecom Company Limited between CAT and i-Mobile
Holdings Company Limited dated 16 October 2000 shall have the right to use the
same for internal communications of CAT or both juristic persons or the
subsidiary company or affiliated company of CAT or both juristic persons, and
for providing the mobile telephone service under the Cellular system to the
numbers under the service agreements made with CAT or both juristic persons or
the subsidiary company or affiliated company of CAT or of both juristic persons
in the Upcountry project.

                The terms "subsidiary company" and "affiliated company" under
the first paragraph shall have the same meanings as ascribed in Clause 3.1 of
the Shareholders Agreement of Tawan Mobile Telecom Company Limited which is
referred to in the first paragraph.

        2.18    CAT shall cooperate with BFKT in order that the management and
operation of the 69 and 50 cell sites of CAT as well as the additional cell
sites for which CAT will lease the Facilities from BFKT will be efficient and
meet the Grade of Service for the entire system.

CLAUSE 3.       CONTRACT FOR IMPROVEMENT, REPLACEMENT, REPAIR, MAINTENANCE AND
                OPERATION

        3.1     CAT agrees to contract and BFKT agrees to be contracted to
undertake the improvement, replacement, repair, maintenance and operation of the
leased Facilities under Clause 2.1 to ensure that they are at all times in good
order as they were passed the test in Clause 2.5, paragraph two and can be used
for the provision of service of mobile telephone under the Cellular Digital AMPS
800 Band A System of CAT in an efficient manner according to the standards of
Grade of Service throughout the contract term hereunder. The term of the said
contract shall be from the effective date of this Agreement until 21 April 2015.
The scope of operation of the said Facilities shall be in accordance with the
document attached hereto and referred to in Clause 17.5.

<PAGE>

                                      - 7 -

        3.2     BFKT must improve, replace, repair, maintain and operate the
leased Facilities under Clause 2.1 in accordance with the conditions in Clauses
2.3 and 2.4 hereof.

        3.3     CAT agrees that BFKT may subcontract the works relating to
improvement, replacement, repair and maintenance of the leased Facilities under
Clause 3.1, including the import, installation and test of all or part of the
Facilities to other person, provided that BFKT must be responsible to CAT for
the works done by its subcontractor in all respects and must also be responsible
for and pay all the wage or any other money to the subcontractor. CAT shall
neither be responsible for nor need to pay the wage or any other money to that
subcontractor. However, the operation of the leased Facilities according to
Clause 3.1 must be carried out by BFKT itself and may not be subcontracted to
other person.

        3.4     BFKT must provide an on the job training to CAT staff or
employee for a period as suitable for each course. Such training shall be
arranged during the contract term or whenever there is a change in the system,
and shall be divided into various phases throughout the contract term under this
Agreement. All expenses for that training shall be borne by BFKT. The
commencement schedule of the training shall be further agreed between CAT and
BFKT.

        3.5     In case that CAT has the transmission backbone and equipment
between the base station and the cell sites under Clause 2.1, BFKT must lease
such transmission backbone and equipment from CAT and pay all expenses in the
lease to CAT. CAT shall charge such expenses at reasonable rates which are not
higher than those which CAT offers to other persons in general. The transmission
backbone and equipment of CAT must have the quality not inferior to the
technical standards of those transmission backbone and equipment, otherwise BFKT
may ask CAT to improve them first in order to meet the standards. If CAT cannot
carry out such an improvement, BFKT may procure the same by itself or lease the
same from other service providers, provided that BFKT shall be responsible for
expenses for such procurement or lease.

                The transmission backbone and equipment provided by BFKT in
accordance with the first paragraph shall be new, never been used, not old
stock, and owned by BFKT only.

CLAUSE 4.       LEASE FEE AND WAGE

        4.1     The Parties agree that the Lease Fee and Wage hereunder shall be
in accordance with the rules and procedures for calculation of the Lease Fee and
Wage which are attached hereto and referred to in Clause 17.6. TMT agrees to pay
the Lease Fee and Wage as specified herein.

        The following terms as used herein and in the document attached hereto
and referred to in Clause 17.6 shall have the following meanings:

        "Cost of the Facilities" means the cost of the Facilities which have
been installed and passed the test under Clause 2.5, paragraph two and in
service (including the CIF price of the related Facilities, hardware and
software, installation and technical service fee), plus logistics

<PAGE>

                                      - 8 -

cost (including import duty, customs tax, excise tax, warehouse and local
transportation expenses) and other taxed relating to the Facilities.

        "Annual financing charge rate" means 10.5% per annum.

        4.2     In case that there is any fault, defect or loss or damage in
the leased Facilities under Clause 2 for a consecutive period of more than 15
(Fifteen) days, BFKT pay compensation to TMT within 10 days from the date of
completion of the rectification and provision of service in the amount equal to
the lost airtime of CAT during the fault, defect or loss or damage in the leased
Facilities under Clause 2 , by multiplying the average Airtime Charges per cell
site per day of CAT of the entire system (all cell sites) prior to the month of
such fault, defect or loss or damage with the number of cell cites not in
service and the number of days during which they are out of service (a fraction
of day in excess of 12 hours shall be counted as a day). However, BFKT must not
be responsible under this Clause if such fault, defect, loss or damage is caused
by Force Majeure, sabotage, or an act of any person other than BFKT or TMT, or
the employee or agent of BFKT or TMT.

CLAUSE 5.       CALCULATION AND PAYMENT OF LEASE FEE, WAGE AND OPERATING
                EXPENSES

        5.1     BFKT agrees to be responsible for calculating the Lease Fee and
Wage under Clause 4 (including any adjustment made under Clause 5.4). In this
regard, within 4 weeks prior to the beginning of each year, or within 4 weeks
from the effective date of this Agreement in the case of the 1st year (ending
December 31, 2000), BFKT shall send CAT written notification of the total amount
of the estimated Leased Fees and the estimated Wage for the forthcoming year,
and the basis and details of such calculation. If CAT does not protest such
written notification within 15 CAT's business days of the date of such
notification, the estimated Lease Fee and the estimated Wage shall be deemed to
have been accepted by CAT.

                If CAT disagrees with either the estimated Lease Fee or the
estimated Wage under the first paragraph, CAT shall notify BFKT within 15 CAT's
business days of the date of the notification. In such case, CAT and BFKT shall
refer the matter to an Independent Auditor who shall be instructed to make a
determination within 7 CAT's business days of its appointment. The determination
of the Independent Auditor shall be the basis on which the estimated Lease Fee
and the estimated Wage shall be calculated with respect to the relevant year.
The Parties agree that the estimated Lease Fee and the estimated Wage shall be
used solely as the basis for the payments to be made pursuant to Clauses 5.2 and
5.3. Accordingly, such estimates shall not restrict BFKT from making any
adjustments (upward or downwards) with respect to the final calculation of the
Lease Fee and Wage pursuant to Clause 5.4.

                The costs of the Independent Auditor under the second paragraph
shall be met by CAT if the Independent Auditor agrees with BFKT's calculation of
the estimated Lease Fee and the estimated Wage; or by BFKT if the Independent
Auditor disagrees with such calculation.

<PAGE>

                                      - 9 -

        5.2     The estimated Lease Fee for each year shall be paid in four
instalments. Each installment shall be 25 (Twenty five) per cent of the
estimated Lease Fee for the year, and the installments shall be payable within
15 CAT's business days from the last day of each March, June, September and
December, except in the 1st year (ending December 31, 2000) for which the
payment thereof shall be made within January 2001.

        5.3     The estimated Wage for each year shall be paid in four
instalments. Each instalment shall be 25 (Twenty five) per cent of the estimated
Wage for the year, and the instalments shall be payable within 15 CAT's business
days from the last day of each March, June, September and December, except in
the 1st year (ending 31 December 2000) for which the payment thereof shall be
made within January 2001.

        5.4     Within 60 days from the day following the last date of each
year, BFKT shall send CAT a written notice setting forth any adjustments to the
estimated Lease Fee and/or estimated Wage (including exchange rate adjustments)
according to actual amounts for that year.

                BFKT shall send a copy of each adjustment notice under the first
paragraph to the Independent Auditor, who shall be instructed to issue a
certification as to the accuracy of the adjustment within 15 business days of
its appointment. The costs of the Independent Auditor in issuing the
certification of the adjustment notice shall be paid by BFKT. The Independent
Auditor's determination shall be final and used as the basis for finalising the
actual amount of the Lease Fee or Wage for the relevant Year. In case that the
estimated Lease Fee under Clause 5.2 and/or the estimated Wage under Clause 5.3
which have been paid by BFKT are lower than the actual amounts of the Lease Fee
and/or Wage under this Clause, TMT shall make payment of the shortfall to BFKT;
or in case that the estimated Lease Fee under Clause 5.2 and/or the estimated
Wage under Clause 5.3 which have been paid by BFKT are higher than the actual
amounts of the Lease Fee and/or Wage under this Clause, BFKT shall make payment
of the excess to TMT. Such payment free of interest shall be made within 15 days
of the date of determination of the Independent Auditor.

        5.5     No more than once in any year, CAT may call for an Independent
Auditor to certify that the estimated Lease Fee or estimated Wage under Clause
5.1 reasonably reflect the projected costs of BFKT for that year. The
certification of the Independent Auditor shall be used as a basis for adjusting
the estimated Lease Fee or estimated Wage for the remainder of the year but
shall not in any way affect the final calculation of the actual amounts of the
Lease Fee and/or the Wage or the Independent Auditor's certification under
Clause 5.4.

                The costs of the Independent Auditor under the first paragraph
shall be met by CAT if the Independent Auditor agrees with BFKT's calculation of
the estimated Lease Fee and estimated Wage; or by BFKT if the Independent
Auditor disagrees with such calculation.

        5.6     The Parties agree that TMT shall pay the Operating Expenses to
BFKT as actually paid by BFKT on a monthly basis. BFKT shall submit an invoice
which sets forth details of BFKT's Operating Expenses incurred during the
previous month, and any eligible BFKT's

<PAGE>

                                     - 10 -

Operating Expenses not included in previous invoices by the 10th (Tenth) day of
the following month. TMT shall reimburse such Operating Expenses to BFKT within
20th day of the month that TMT receives invoice from BFKT.

        5.7     All payments under this Clause 5 shall be made by cheque or
telegraphic transfer to BFKT's bank account notified by BFKT to CAT and TMT
prior to the due date for the first payment, or as notified by BFKT in writing
from time to time.

        5.8     The Parties agree that TMT shall be responsible to BFKT for
Lease fee, Wage, Operating Expenses, and VAT as specified in Clause 4 and Clause
5 hereof as well as other related expenses, penalty, surcharge, interest,
damages or any other money arising from the overdue payment or the default of
this Agreement by TMT, and CAT shall not be liable to BFKT for the same. BFKT
shall exercise its right and claim against TMT to be liable for the same and
BFKT cannot exercise its right or claim for the same against CAT.

        5.9     It is hereby acknowledged and agreed that TMT shall be
responsible for VAT on the amounts payable under this Clause 5 to BFKT. The
Parties agree to enter into suitable arrangements to ensure that TMT and CAT can
claim appropriate VAT inputs and outputs according to the law in force from time
to time.

                BFKT shall issue the receipt and tax invoice to CAT in respect
of any payment of the Lease Fee and Wage and the reimbursement of Operating
Expenses received by BFKT under this Clause 5, and delivery them to TMT. CAT
shall issue the receipt and tax invoice to TMT for the payment of Lease Fee and
Wage and the payment of BFKT's Operating Expenses made by TMT to BKFT hereunder
and deliver them to TMT when TMT gives the receipt and tax invoice mentioned
above to CAT.

        5.10    The currency of payments under this Clause 5 shall be Thai Baht.
However, in calculating the costs of the Facilities, the original costs in US
Dollars would be used and then translated into Thai Baht by using the average
exchange rate between US Dollar and Thai Baht during that lease year.

        5.11    Any late payment of whatsoever amount under this Agreement shall
be subject to interest payable by the party obligated to make such payment at
1.25 (One point two five) per cent per month of the unpaid amounts. The Parties
agree that no interest shall be imposed on the timely payment of an adjustment
under Clause 5.3.

CLAUSE 6.       SECONDMENT OF CAT STAFF

        6.1     BFKT agrees to CAT's secondment of certain CAT staff or employee
to BFKT to perform the work in BFKT at the level of management, administration
and operation. BFKT shall, at its own cost, be responsible for payment of
salaries, wages, overtime pays, bonuses, welfare and any other monies paid by
CAT to those CAT staff throughout the lease and contract

<PAGE>

                                     - 11 -

term hereunder. CAT and BFKT shall mutually agree on the direction and period of
performance of work, position and number of staff as well as other conditions as
CAT and BFKT may consider appropriate. If there is a proper reason, BFKT may
request CAT to replace its staff or employee.

                BFKT must pay the expenses under the first paragraph to CAT
within 15 days of the receipt of written notification from CAT, provided that
CAT shall provide evidence of relevant expenses to BFKT together with such
notification of CAT.

        6.2     BFKT agrees to appoint one representative of CAT to be the
Chairman of its Board of Directors throughout the lease and contract term
hereunder, and to be responsible for remuneration of the Chairman.

CLAUSE 7.       SUPERVISION AND EXAMINATION

        The     operation of BFKT with respect to the improvement, replacement,
repair, maintenance and operation of the Facilities under this Agreement shall
be under the supervision of CAT. BFKT shall allow CAT or its representative to
inspect such operation, and shall make all information and details available for
examination by CAT during normal business hours as CAT thinks fit upon at least
7-day advance notice of CAT. In this regard, BFKT must render full facilities to
CAT or its representative

CLAUSE 8.       RELATIONSHIP OF BFKT AND THIRD PERSON

        The implementation hereunder, be it the management, operation or any
juristic act made with a third party, shall be under the responsibility of BFKT
and carried out by BFKT in its own name. CAT shall not in any way be responsible
for all the obligations of BFKT to that third party. If any claim or action is
brought by a third party against CAT for its liability due to the operation of
BFKT, BFKT shall take all measure to prevent CAT from being liable thereto,
including to defend and litigate on CAT's behalf and to compensate CAT for any
expenses or damage thereby sustained.

CLAUSE 9.       ASSIGNMENT OF RIGHTS AND OBLIGATIONS

        9.1     BFKT shall not assign its rights and/or obligations under this
Agreement to any third party unless a prior written consent is given by CAT.

                The assignment of rights and obligations for the benefit of a
bank and/or finance company lending or granting credit for the procurement and
installation of equipment, buildings and other items required for the operation
of BFKT under this Agreement, or the juristic entity selling goods or providing
service or telecom technology who grants financial supported to BFKT shall be
permitted and valid only when BFKT is demanded by such bank or finance company
or the juristic entity selling goods or providing service or telecom technology
who grants financial support to BFKT to pay all the indebtedness owing to any of
them under the loan agreement or credit facilities agreement but BFKT is unable
to pay all such indebtedness within a period stipulated under the said loan
agreement or credit facility agreement. In such event

<PAGE>

                                     - 12 -

BFKT shall immediately inform CAT in writing of the said assignment of rights
and obligations. CAT shall be the party to consider approving the qualifications
of the juristic person designed by the bank or finance company or the juristic
entity selling or providing service or telecom technology who grants financial
support to BFKT in order to accept the assignment of rights and obligations
under this Agreement, provided that such juristic person must be a company
established and registered in Thailand and subject to the conditions under
Clause 10.

                The assignment of rights and obligations shall not, in all
cases, release the BFKT from its liabilities under this Agreement, and BFKT
agrees for CAT to claim for compensation for damages incurred by the failure of
BFKT to comply with this Agreement prior to the assignment of rights and
obligations including for the acts of or the non-compliance by the assignee
subsequent to the assignment as if it were the act done by BFKT.

                The assignment of rights and obligations under this Agreement
shall be made by an assignment agreement to be entered into among BFKT, the
assignee and CAT, and the assignee shall thereby be bound to comply with the
stipulations of this Agreement.

        9.2     CAT reserves the right to assign the rights and/or obligations
hereunder to any other juristic entity established to undertake
telecommunications business under the Act and it shall be deemed that BFKT and
TMT have unconditionally agreed and consented to such an assignment of rights
and/or obligations. CAT shall notify BFKT and TMT of such assignment of rights
and/or obligations in writing.

                In case of the transformation or conversion of CAT into a new
juristic entity, BFKT and TMT agree and consent that all the rights and/or
obligations of CAT hereunder shall be assigned to such new juristic entity so
that it shall pursue all related businesses hereunder.

                BFKT and TMT agrees and consents to waive the right to make any
dispute, objection or claim on the ground of the assignment of rights and/or
obligations under the first and second paragraph, and agrees to give its consent
to the assignment of rights and/or obligations hereunder to the new juristic
entity under the first and second paragraph.

CLAUSE 10.      STATUS OF BFKT

From the date of signing this Agreement and throughout the term hereof, BFKT
must be a juristic person registered in Thailand and not foreign as prescribed
by the foreign business law.

CLAUSE 11.      AGREEMENT WITH LENDER OR CREDIT PROVIDER OF BFKT

        BFKT must agree with its lender or credit provider (Lender) that in
case the Lender would enforce the leased Facilities under Clause 2.1, the Lender
must offer the lease or sale on hire-purchase or sale of those Facilities to CAT
first (Right of First Refusal). If CAT fails to accept the lease or
hire-purchase or purchase of those Facilities within 120 (One hundred twenty)
days from the day following the date of receipt of an offer from that Lender,
the Lender may propose the lease, sale on hire-purchase, sale or disposal or
those Facilities to a third party with

<PAGE>

                                     - 13 -

the conditions and price not better than those offered to CAT. In the case that
CAT agrees to lease, the leasing terms must not be inferior to and the lease fee
must not be higher than those specified in this Agreement, and CAT shall not be
responsible for Lease fee, Wage, Operating Expenses, VAT and other related
expenses which are under the responsibility of TMT and overdue to BFKT on or
before the expiration of the lease period of Facilities under Clause 2.1
including penalties, surcharge, interest, damages and other money resulting from
the unpaid balance or default of TMT in this Agreement.

CLAUSE 12.      REPRESENTATIONS AND WARRANTIES OF THE PARTIES

        Each Party represents and warrants for the benefit of each other Party
that:

        12.1    it has full power and authority to enter into, and to perform
its respective obligations under this Agreement;

        12.2    this Agreement is validly executed and binding on it, and
enforceable against it in accordance with the express terms;

        12.3    all consents and approvals necessary for its performance of this
Agreement have been obtained and remain in full force and effect.

CLAUSE 13.      GOVERNING LAW

        13.1    This Agreement shall be governed by the law of Thailand. The
interpretation of this Agreement shall be made in accordance with the law of
Thailand.

        13.2    In case of any dispute, conflict or claim arising out of this
Agreement or in connection with this Agreement, including the breach,
termination or validity of this Agreement, the Parties agree that it shall be
settled by arbitration in accordance with the UNCITRAL Arbitration Rules
applicable at the time of submission of the dispute to arbitration or any other
Rules agreed upon by the parties.

                The arbitration panel shall consist of three arbitrators, one to
be appointed by CAT and one by BFKT. The two arbitrators shall jointly appointed
a third arbitrator to be the chairman. If the two arbitrators cannot reach an
agreement, the Director for the time being of the Arbitration Office, Ministry
of Justice shall appoint the third arbitrator. The arbitration shall be
conducted in Bangkok Metropolis, Thailand in the Thai language.

CLAUSE 14.      TERMINATION

        14.1    If BFKT becomes a bankrupt or is subject to an absolute
receivership order of the Court, CAT shall have the right to terminate this
Agreement forthwith. If BFKT is in breach of any clause of this Agreement, CAT
shall send a written warning to BFKT first to require BFKT

<PAGE>

                                     - 14 -

to take a remedial action or perform correctly within 120 (One hundred and
twenty) days from the date of notification of CAT. If BFKT fails to do so within
the prescribed time, CAT has the right to terminate this Agreement forthwith.

        14.2    If CAT becomes a bankrupt or is subject to an absolute
receivership order of the Court, BFKT shall have the right to terminate this
Agreement forthwith. If CAT is in breach of any clause of this Agreement, BFKT
shall send a written warning to CAT first to require CAT to take a remedial
action or perform correctly within 120 (One hundred and twenty) days from the
date of notification of BFKT. If CAT fails to do so within the prescribed time,
BFKT has the right to terminate this Agreement forthwith.

        14.3    If TMT becomes a bankrupt or is subject to an absolute
receivership order of the Court, BFKT shall have the right to terminate this
Agreement forthwith. If TMT fails to pay the Lease Fee, Wage, Operating
Expenses, VAT and/or other related expenses under this Agreement or is in breach
of any Clause of this Agreement, BFKT shall send a written warning to TMT first
to require TMT to take a remedial action or perform correctly within 120 (One
hundred and twenty) days from the date of notification of BFKT. If TMT fails to
do so within the prescribed time and CAT does not terminate the Marketing
Agreement with TMT within 30 (Thirty) days from the date on which CAT is
notified by BFKT in writing that TMT is in breach of the Agreement and fails to
take a remedial action or perform correctly within such prescribed time, BFKT
has the right to terminate this Agreement forthwith.

        14.4    In case that the Marketing Agreement is terminated because TMT
breaches such Agreement and CAT terminates it, CAT has the right to continue the
lease of the leased Facilities and the contract for improvement, replacement,
repair, maintenance and operation of the leased Facilities with BFKT under this
Agreement. However, CAT has the right to terminate this Agreement within 1 (One)
year from the day following the date of termination of the Marketing Agreement.

        14.5    In case that the Marketing Agreement is terminated because CAT
breaches such Agreement and TMT terminates it, CAT agrees to lease the leased
Facilities from and hire BFKT for improvement, replacement, repair, maintenance
and operation of the leased Facilities under this Agreement.

        14.6    In the case under Clause 14.4 or 14.5, CAT agrees to accept the
assignment of rights and obligations of TMT under this Agreement from TMT as
from the day following the date of termination of the Marketing Agreement,
except the responsibility for payment of the Lease Fee, Wage, Operating
Expenses, VAT, and other relevant expenses incurred before and on the date of
termination of the Marketing Agreement including the penalty, surcharge,
interest, damages and any other money due to the non-payment or breach of this
Agreement by TMT which TMT must be liable to pay in full notwithstanding that
they are incurred after the date of termination of the Marketing Agreement. CAT
must not be responsible for payment of those Lease Fee, Wage, Operating
Expenses, VAT, and other relevant expenses including the penalty, surcharge,
interest, damages and any other money to BFKT and BFKT must exercise its claim
and take an action against TMT only for its liability to pay the same. In no
case shall BFKT be entitled to exercise such claim or take an action against
CAT.

        14.7    In case that the Marketing Agreement is terminated for any
reason which is not due to the breach under Clause 14.4 or 14.5 of the Marketing
Agreement by TMT or CAT,

<PAGE>

                                     - 15 -

whether or not this Agreement is terminated, CAT and BFKT agree to enter into a
new lease agreement and contract for improvement, replacement, repair,
maintenance and operation of the leased Facilities. In doing so, CAT and BFKT
shall negotiate in good faith, with reason, to reach a mutual agreement which is
justified to both parties.

        14.8    In case that BFKT is in breach of any clause of this Agreement
and CAT has not yet terminated the Agreement as stated in Clause 14.1, CAT shall
have the right to send its officers and employees to jointly carry out a
rectification with BFKT for a period not less than 120 (One hundred and twenty)
days from the day following the expiry of the 120-day period under Clause 14.1.
The expenses relating to those officers and employees of CAT shall be borne by
CAT. If CAT finds it impossible to rectify the breach of BFKT any further, CAT
has the right to terminate this Agreement forthwith. In this connection, BFKT
shall not impose the Lease Fee, Wage, Operating Expenses and other related
expenses from the day following the expiry of the 120-day period under Clause
14.1 until the date on which the ratification is complete or the date on which
CAT terminates the Agreement and BFKT shall not demand TMT and CAT to pay the
same. CAT must terminate the Agreement within 15 days following the completion
of such 120-day period during which CAT sent its officers or employees to
jointly carry out a rectification with BFKT under this Clause, otherwise it
shall be deemed that CAT is no longer entitled to terminate this Agreement. In
such case, BFKT shall still have the right to impose the Lease Fee, Wage and
Operating Expenses hereunder as from the expiration of the termination right of
CAT within the period of 15 days.

        14.9    In case that BFKT terminates this Agreement according to Clause
14.2, BFKT may repossess the leased Facilities under Clause 2.1 after the
termination of this Agreement. If those leased Facilities are installed in the
premises which CAT is an owner or has the possession right, BFKT must remove
them without delay at the expense of BFKT.

        14.10   In case that either party is unable to perform according to this
Agreement within the period of time hereunder due to Force Majeure, it shall not
be deemed that such party is in breach of the Agreement and the period for such
performance shall be extended according to the duration of such Force Majeure.

CLAUSE 15.      EFFECTIVE DATE AND LEASE OF FACILITIES AFTER EXPIRY OF THE LEASE
                PERIOD

        15.1    This Agreement shall be effective as from the date on which
i-Mobile Holdings Company Limited duly and fully accepts the transfer of shares
from Tawan Telecom Company Limited according to Clause 3 of the Agreement for
Assignment of Rights, Duties and Liabilities under the Shareholders Agreement of
Tawan Mobile Telecom Company Limited among CAT, Tawan Telecom Company Limited
and i-Mobile Holdings Company Limited dated 16 October 2000.

<PAGE>

                                     - 16 -

        15.2    Upon expiration of the lease period of the Facilities under
Clause 2.1, CAT shall have the right to lease the Facilities under Clause 2.1
from BFKT for a further period of not less than 5 (Five) years with the terms
and conditions which shall provide CAT with the benefits not lesser than those
under the terms and conditions stipulated herein and the Lease Fee which is not
higher than the rate of the Lease Fee specified herein. In this connection, CAT
must not be responsible for the Lease Fee, Wage, Operating Expenses, VAT and
other relevant expenses which are under the responsibility of TMT and overdue to
BFKT on or before the expiration of the lease period of the Facilities under
Clause 2.1 as well as the penalty, surcharge, interest, damages or any other
money resulting from the unpaid balance or default of TMT in this Agreement.
However, CAT must send a notice of the exercise of its right to lease those
Facilities to BFKT within 6 (Six) months before the expiration of the lease
period of the Facilities under Clause 2.1.

CLAUSE 16.      NOTICES

        16.1    All notices, reports, correspondences and requests under this
Agreement shall be made in writing in Thai and shall be delivered to the Parties
at the respective addresses hereinbelow stipulated, or any other address
notified by one party to the other in writing from time to time. The notices,
reports, correspondences or requests shall be deemed effective from the date on
which BFKT, TMT and/or CAT receives the same notwithstanding the date specified
therein.

                        Address of CAT:

                        THE COMMUNICATIONS AUTHORITY OF THAILAND
                        No. 99, Mu 3, Chaeng Watthana Road
                        Kwaeng Thung Song Hong, Khet Laksi
                        Bangkok Metropolis 10002
                        Facsimile No.

                        Address of BFKT

                        BFKT (THAILAND) COMPANY LIMITED
                        990 22nd-25th Floor, Rama IV Road
                        Khwaeng Silom, Khet Bangrak
                        Bangkok Metropolis 10500
                        Facsimile No. 636-2111

                        Address of the TMT:

                        TAWAN MOBILE TELECOM COMPANY LIMITED
                        947 Moo 12 Bangna-Trad Road
                        Khwaeng Bangna, Khet Prakanong
                        Bangkok Metropolis 10260
                        Facsimile No. 361-8344

        16.2    CAT agrees that all notices, reports, correspondences and
requests to be sent to BFKT under Clause 16.1 in respect of the breach of the
Agreement or remedy of the default or termination of this Agreement shall sent
with copies by registered mail and by fax at the address

<PAGE>

                                     - 17 -

below. The date that such notices, reports, correspondences and requests to BFKT
shall be deemed effective shall be the date as provided in Clause 16.1. The
sending of copies thereof to the address specified herein shall have no legal
effect on the notices, reports, correspondences and requests under Clause 16.1

                        25th Floor
                        Abdulrahim Place,
                        990 Rama IV Road,
                        Silom, Bangrak,
                        Bangkok 10500
                        Attention: Mr. Wisit Kanjanopas
                        Facsimile No. 636-2111

CLAUSE 17       ATTACHMENTS

The following documents are attached hereto and shall be deemed as part hereof:

        17.1    The Certification Document (Affidavit) of BFKT (THAILAND)
COMPANY LIMITED issued by the Partnerships and Companies Registration Office,
Bangkok Metropolis;

        17.2    The Certification Document (Affidavit) of TAWAN MOBILE TELECOM
COMPANY LIMITED issued by the Partnerships and Companies Registration Office,
Bangkok Metropolis;

        17.3    Technical Specifications and Implementation Plan.

        17.4    Guidelines for Inspection and Acceptance of the Facilities of
                the Network.

        17.5    Scope of Work for Network Management.

        17.6    Rules and Methods of Calculations of Lease Fee and Wage

This Agreement is made in 3 copies with identical contents. Each party shall
retain one copy. The three parties have thoroughly read and understood the
contents herein and therefore hereunto sign as evidence in the presence of
witnesses.

                    THE COMMUNICATIONS AUTHORITY OF THAILAND

                       Sign
                           ---------------------------------
                              (Mr. Thirapong Suttinon)

TAWAN MOBILE TELECOM COMPANY LIMITED        BFKT (THAILAND) COMPANY LIMITED

Sign  /s/ Ormsin Chevapruk                  Sign  /s/ Ormsin Chevapruk
      -----------------------                     -------------------------
      (Mr. Ormsin Chevapruk)                      (Mr. Wai Man Edmund Sin)

Sign  /s/ Anuwat Laikijrung
      ------------------------
      (Mr. Anuwat Laikijrung)

<PAGE>

                                     - 18 -

<TABLE>
<S>                                                 <C>
Sign  /s/ Pakkaporn Sathienpakiranakorn Witness     Sign  /s/ Tim Tak Timothy Wong Witness
      ----------------------------------                  -------------------------
      (Mr. Pakkaporn Sathienpakiranakorn)                 (Mr. Tim Tak Timothy Wong)

Sign  /s/ Wattanachai Wattanasonthi Witness         Sign  /s/ Wisit Kanjanopas Witness
      ------------------------------                      ---------------------
      (Mr. Wattanachai Wattanasonthi)                     (Mr. Wisit Kanjanopas)
</TABLE>

<PAGE>

                                     - 19 -

                                                                 Attachment 17.1

                        (TRANSLATION FROM THAI ORIGINAL)

This Document certifies only the          The true and complete certification
particulars the company has               must carry a serial number, bear the
registeredfor legal effect. Facts         number, bear the full signature of the
relating to actual standing should        Registrar and have the seal of the
be sought elsewhere                       Registrar affixed

                                 ( G A R U D A )

No.     Sor Or. 0057207                           PARTNERSHIPS AND COMPANIES
                                                  REGISTRATION OFFICE
                                                  Bangkok Metropolis

                             CERTIFICATION DOCUMENT

        This is to certify that this Company was registered under the Civil and
Commercial Code as a juristic person, being incorporated as a limited company,
Registration No. 1147/2543 on the 9th day of August B.E. 2543 and that the
following information appears in the documents registration records on the day
of issuance hereof:

        1.      The name of the Company is " BFKT (Thailand) Limited".

        2.      The Company has 2 directors whose names are here listed:

                (1) Mr. Ng Jiak Hong            (2) Mr. Wai Man Edmund Sin

                (3)__________________________   (4)__________________________

                (5)__________________________   (6)__________________________

                (7)__________________________   (8)__________________________

                (9)__________________________   (10)_________________________

                (11)_________________________   (12)_________________________

                (13)_________________________   (14)_________________________

        3.      Number or names of the directors who can sign to bind the
                Company are: Any one of Mr. Ng Jiak Hong or Mr. Wai Man Edmund
                Sin singly sign and affix the Company's seal

        4.      The registered capital is fixed at Baht 100,000

        5.      The address of the principal business office is 990 22nd-25th
                Floor, Rama IV Road, Khwaeng Silom, Khet Bangrak, Bangkok
                Metropolis 10500

        6.      The objects of the Company comprise 40 items and are as appear
                in the copy of the documents attached hereto in 5 sheet(s) which
                bear the signature of the Registrar who certified the document
                and are affixed with the seal of the Partnerships and Companies
                Registration Office.

                                    Issued on this day the 9 October B.E. 2543

<PAGE>

                                     - 20 -

        The Registrar may terminate the
        registration if it appears later that               - Signature -
        the registration is not duly done.             ( Mrs. Manee Pinvises )
                                                              Registrar
                                                               (SEAL)

Bor Chor 1146/2543

The objects of this Company are 40 to number, as follows:

GENERAL OBJECTS

(1)     To buy, obtain, receive, rent, buy on hire-purchase, own, possess,
        improve, use or otherwise manage any property whatsoever as well as the
        fruits thereof.

(2)     To sell, transfer, mortgage, pledge, exchange or otherwise dispose of
        any property.

(3)     To be a broker, agent or commission agent in transactions and businesses
        of all types except insurance, membership recruitment for associations,
        and trading in securities.

(4)     To borrow money, overdraw from accounts with banks, juristic persons or
        other finance institutions; and to lend money or otherwise give credit,
        with or without security; as well as to accept, issue, transfer or
        endorse bills of exchange or other negotiable instruments except the
        banking business, finance business and credit foncier business.

(5)     To establish branch offices or to appoint agents, within or without the
        Kingdom.

(6)     To become a partner with limited liability and a partner with unlimited
        liability in a partnership and a shareholder in a private company and a
        public company.

OPERATING OBJECTS

(7)     To carry on the business of trading in rice, rice products, cassava,
        cassava products, maize, sesame seeds, beans, pepper, jute, kapok,
        cotton, lac, castor beans, wood, resin, vegetables, fruits, forest
        products, medicinal herbs, animal hides, animal horn, live animals,
        animal flesh, sugar, animal feed, and agricultural products of all
        kinds.

(8)     To carry on the business of trading in machinery, engines, mechanical
        tools, labour-saving devices, vehicles, electricity generators and
        electrical goods, refrigerators, air-conditioners, fans, electric
        rice-cookers, electric irons, water-pumps, heaters, coolers, kitchen
        utensils, hardware, copperware, brassware, sanitary fittings, home
        fittings, furniture, electrical equipment, and plumbing, including spare
        parts and accessories for the aforesaid goods.

(9)     To carry on the business of trading in fresh food, dried food,
        pre-cooked food, tinned food, food seasoning, liquid refreshment,
        liquor, beer, cigarettes, and other consumables.

(10)    To carry on the business of trading in textiles, yarn, garments,
        ready-made clothes, wearing apparel and accessories, cosmetics, beauty
        aids and accessories, and other consumer goods.

<PAGE>

                                     - 21 -

(11)    To carry on the business of trading in medicines for the curing and
        prevention of disease in humans and animals, pharmaceutical products,
        chemical substances, medical and pharmaceutical equipment, fertilizers,
        herbicides and pesticides, all kinds of growth agents for plants and
        animals, and scientific instrument and equipment.

(12)    To carry on the business of trading in gold, precious metal alloys,
        silver, diamonds, precious gems and semi-precious stones, including
        imitations thereof.

(13)    To carry on the business of trading in paper, stationery, school books,
        printed forms, printed books, educational materials, calculators,
        printers, printing equipment and accessories, printed matter,
        newspapers, filing cabinets, and all kinds of office equipment.

(14)    To carry on the business of trading in construction materials,
        construction equipment and tools, implements used in construction, all
        types of workman's tools, pigment and paint, painter's equipment, and
        all kinds of building ornament and decoration.

(15)    To carry on the business of trading in plastics, or other similar
        materials, either in raw form or processed into articles.

(16)    To carry on the business of trading in latex, cured rubber sheet, or
        other kinds of rubber, which are produced by or derived from any part of
        the rubber tree, including synthetic rubber and synthetic versions of
        the said materials or goods made by scientific means.

(17)    To carry on the business of rice farming, orchard gardening, growing
        plant crops, salt production (from evaporation of sea water), forestry,
        rubber plantation, raising animals, and the stock-raising business.

(18)    To carry on the business of a rice mill, sawmill, planing and
        impregnating timber mill, automobile body builders, ceramic and glazed
        ware factory, pottery factory, jute-bailing factory, vegetable-oil
        extraction factory, paper factory, gunny-bag factory, textile factory,
        spinning factory, textile dying and printing factory, rubber-tire
        manufacture and retreading factory, iron works, metal casting and
        machine lathing, and galvanized, iron sheet manufacture, pre-cooked food
        factory, liquor distillery, gas factory, cigarette factory, sugar-mill,
        plastic goods factory, metal-pressing and smelting factory, door and
        window manufacture, glass factory, soft drink manufacture, rubber
        casting factory, automobile assembly works.

(19)    To carry on the business of a printing house, printing and publishing
        books service, printing and publishing books for sale and newspaper
        publishing.

(20)    To carry on the business of ice factory.

(21)    To carry on the business of fishery, fishing pontoons, and fish trading
        on piers.

<PAGE>

                                     - 22 -

(22)    To carry on business of stone blasting and rock crushing.

(23)    To carry on the contracting business of constructing buildings,
        commercial buildings, residential buildings, offices, roads, bridges,
        tunnels, dams, and all other kinds of constructions as well as all
        categories of civil engineering work.

(24)    To carry on the business of mining, ore smelting, ore extraction, ore
        conversion, fusing ores, dressing minerals, mineral surveying, analyzing
        and examining minerals, grinding ore and transportation of minerals and
        ore.

(25)    To carry on the business of hotels, restaurants, bars, night-clubs,
        bowling alleys, massage parlors, cinema theatres and other kinds of
        theatres of entertainment, vacation resorts, sport fields, and swimming
        pools.

(26)    To carry on the business of shipment transportation and loading of goods
        and passengers on land, on water, or in the air, both within the country
        and internationally, including the services of bringing shipment at
        ports through customs clearance and management of all kinds of freight.

(27)    To carry on the business of guided tours including all kinds of business
        involved with guided tours.

(28)    To carry on the business of import and export of the goods stipulated in
        the objects for distribution.

(29)    To carry on the business of hair-cutting, hair-dressing, beauty-salon,
        dress-making, and laundry.

(30)    To carry on the business of commercial photograph, the development,
        printing and enlargement of photographs, including the same for
        documents.

(31)    To carry on the business of production and distribution of movie films.

(32)    To carry on the business of a service station selling petrol and
        providing repair, maintenance and inspection services, lubrication,
        spraying, and anti-rust treatment for all kinds of vehicles, including
        the services of installation, inspection and fixing of all kinds of
        anti-theft and accident prevention accessories.

(33)    To carry on service businesses in legal, accountancy, engineering and
        architectural fields, including advertising.

(34)    To undertake a service business providing guarantees for debt, liability
        or performance of the contractual obligations of other persons,
        including the guarantee for a person who has

<PAGE>

                                     - 23 -

        entered or departed the country in accordance with the laws of
        immigration, taxation and other laws.

(35)    To undertake a service business of counselling and making
        recommendations on problems related to work management, commerce and
        industry, including problems of manufacturing, marketing and
        distributing.

(36)    To carry on a service business of collecting, compiling, preparing,
        publishing and distributing statistics, data and information concerning
        agriculture, industry, commerce, finance and the market, including
        analyzing and assessing the outcome of business transactions.

(37)    To carry on the business of a private hospital and nursing home, of
        curing of the ill and people in pain, and providing technical
        instruction and training in medicine and health science.

(38)    To carry on a service business of being a manager who protects
        interests, collects and receives the benefit and manages the properties
        of others.

(39)    To carry on the business of bidding for sale of goods and hire of work
        in accordance with all of the objects, for any person, body of persons,
        juristic person, government agency and state enterprise.

(40)    The Company is entitled to issue shares at a price higher than par
        value.

<PAGE>

                                     - 24 -

                                                                 Attachment 17.2

                      (TRANSLATION FROM THE THAI ORIGINAL)

This Document certifies only the          The true and complete certification
particulars the company has               must carry a serial number, bear the
registered for legal effect. Facts        full signature of the Registrar and
relating to actual standing should        have the seal of the Registrar affixed
be sought elsewhere

                                 ( G A R U D A )

No.     Sor Or. 0057206                        PARTNERSHIPS AND COMPANIES
                                               REGISTRATION OFFICE
                                               Bangkok Metropolis

                             CERTIFICATION DOCUMENT

        This is to certify that this Company was registered under the Civil and
Commercial Code as a juristic person, being incorporated as a limited company,
Registration No. (2) 2575/2539 on the 14th day of June B.E. 2539 and that the
following information appears in the documents registration records on the day
of issuance hereof:

        1.      The name of the Company is " Tawan Mobile Telecom Company
                Limited".

        2.      The Company has 9 directors whose names are here listed:

                (1) Mr. Anuwat Laikijrung    (2) Mr. Sukhato Phummalee
                (3) Mr. Rasamee Sawamipak    (4) Mr. Worrawit Pativejwong
                (5) Mr. Ratana Meetem        (6) Mr. Prasartporn Surasit
                (7) Mr. Ormsin Chivapruck    (8) Mr. Watthanachai Watthanasonthi
                (9) Mr. Ratien Srimongkon    (10)___________________________
                (11)______________________   (12)___________________________
                (13)______________________   (14)___________________________

        3.      Number or names of the directors who can sign to bind the
                Company are: 1. Any one of Mr. Prasartporn Surasit or Mr. Ormsin
                Chivapruck or Mr. Watthanachai Watthanasonthi and any of one Mr.
                Anuwat Laikijrung or Mr. Sukhato Phummalee or Mr. Worrawit
                Pativejwong or Mr. Ratana Meetem or Mr. Rasamee Sawamipak or Mr.
                Ratien Srimongkon jointly sign with affix the Company's seal

        4.      The registered capital is fixed at Baht 15,000,000

        5.      The address of the principal business office is 947 Moo 12
                Bangna-Trad Road, Khwaeng Bangna, Khet Bangna, Bangkok
                Metropolis

        6.      The objects of the Company comprise 50 items and are as appear
                in the copy of the documents attached hereto in 6 sheet(s) which
                bear the signature of the Registrar who certified the document
                and are affixed with the seal of the Partnerships and Companies
                Registration Office.

                                    Issued on this day the 9 October B.E. 2543

<PAGE>

                                     - 25 -

        The Registrar may terminate the
        registration if it appears later that               - Signature -
        the registration is not duly done.             ( Mrs. Manee Pinvises )
                                                              Registrar
                                                               (SEAL)

Bor Chor (2) 2575/2539

The objects of this Company are 50 to number, as follows:

GENERAL OBJECTS

(1)     To buy, obtain, receive, rent, lease out buy or hire-purchase, own,
        possess, improve, use or otherwise manage any property whatsoever as
        well as the fruits thereof.

(2)     To sell, transfer, mortgage, pledge, receiving pledge exchange or
        otherwise dispose of any property.

(3)     To be a broker, agent or commission agent in transactions and businesses
        of all types except insurance, membership recruitment for associations,
        and trading in securities.

(4)     To borrow money, overdraw from accounts with banks, juristic persons or
        other finance institutions; and to lend money or otherwise give credit,
        with or without security; as well as to accept, issue, transfer or
        endorse bills of exchange or other negotiable instruments except the
        banking business, finance business and credit foncier business.

(5)     To establish branch offices or to appoint agents, within or without the
        Kingdom.

(6)     To become a partner with limited liability in a partnership and a
        shareholder in other companies.

OPERATING OBJECTS

(7)     To carry on the business of trading in rice, rice products, cassava,
        cassava products, maize, sesame seeds, beans, pepper, jute, kapok,
        cotton, lac, castor beans, wood, resin, vegetables, fruits, forest
        products, medicinal herbs, animal hides, animal horn, live animals,
        animal flesh, sugar, animal feed, and agricultural products of all
        kinds.

(8)     To carry on the business of trading in machinery, engines, mechanical
        tools, labour-saving devices, vehicles, electricity generators and
        electrical goods, refrigerators, air-conditioners, fans, electric
        rice-cookers, electric irons, water-pumps, heaters, coolers, kitchen
        utensils, hardware, copperware, brassware, sanitary fittings, home
        fittings, furniture, electrical equipment, and plumbing, including spare
        parts and accessories for the aforesaid goods.

(9)     To carry on the business of trading in fresh food, dried food,
        pre-cooked food, tinned food, food seasoning, liquid refreshment,
        liquor, beer, cigarettes, and other consumables.

<PAGE>

                                     - 26 -

(10)    To carry on the business of trading in textiles, yarn, garments,
        ready-made clothes, wearing apparel and accessories, cosmetics, beauty
        aids and accessories, and other consumer goods.

(11)    To carry on the business of trading in medicines for the curing and
        prevention of disease in humans and animals, pharmaceutical products,
        chemical substances, medical and pharmaceutical equipment, fertilizers,
        herbicides and pesticides, all kinds of growth agents for plants and
        animals, and scientific instrument and equipment.

(12)    To carry on the business of trading in gold, precious metal alloys,
        silver, diamonds, precious gems and semi-precious stones, including
        imitations thereof.

(13)    To carry on the business of trading in paper, stationery, school books,
        printed forms, printed books, educational materials, calculators,
        printers, printing equipment and accessories, printed matter,
        newspapers, filing cabinets, and all kinds of office equipment.

(14)    To carry on the business of trading in construction materials,
        construction equipment and tools, implements used in construction, all
        types of workman's tools, pigment and paint, painter's equipment, and
        all kinds of building ornament and decoration.

(15)    To carry on the business of trading in plastics, or other similar
        materials, either in raw form or processed into articles.

(16)    To carry on the business of trading in latex, cured rubber sheet, or
        other kinds of rubber, which are produced by or derived from any part of
        the rubber tree, including synthetic rubber and synthetic versions of
        the said materials or goods made by scientific means.

(17)    To carry on the business of rice farming, orchard gardening, growing
        plant crops, salt production (from evaporation of sea water), forestry,
        rubber plantation, raising animals, and the stock-raising business.

(18)    To carry on the business of a rice mill, sawmill, planing and
        impregnating timber mill, automobile body builders, ceramic and glazed
        ware factory, pottery factory, jute-bailing factory, vegetable-oil
        extraction factory, paper factory, gunny-bag factory, textile factory,
        spinning factory, textile dying and printing factory, rubber-tire
        manufacture and retreading factory, iron works, metal casting and
        machine lathing, and galvanized, iron sheet manufacture, pre-cooked food
        factory, liquor distillery, gas factory, cigarette factory, sugar-mill,
        plastic goods factory, metal-pressing and smelting factory, door and
        window manufacture, glass factory, soft drink manufacture, rubber
        casting factory, automobile assembly works.

(19)    To carry on the business of a printing house, printing and publishing
        books service, printing and publishing books for sale and newspaper
        publishing.

(20)    To carry on the business of ice factory.

<PAGE>

                                     - 27 -

(21)    To carry on the business of fishery, fishing pontoons, and fish trading
        on piers.

(22)    To carry on business of stone blasting and rock crushing.

(23)    To carry on the contracting business of constructing buildings,
        commercial buildings, residential buildings, offices, roads, bridges,
        tunnels, dams, and all other kinds of constructions as well as all
        categories of civil engineering work.

(24)    To carry on the business of mining, ore smelting, ore extraction, ore
        conversion, fusing ores, dressing minerals, mineral surveying, analyzing
        and examining minerals, grinding ore and transportation of minerals and
        ore.

(25)    To carry on the business of hotels, restaurants, bars, night-clubs,
        bowling alleys, massage parlors, cinema theatres and other kinds of
        theatres of entertainment, vacation resorts, sport fields, and swimming
        pools.

(26)    To carry on the business of shipment transportation and loading of goods
        and passengers on land, on water, or in the air, both within the country
        and internationally, including the services of bringing shipment at
        ports through customs clearance and management of all kinds of freight.

(27)    To carry on the business of guided tours including all kinds of business
        involved with guided tours.

(28)    To carry on the business of foreign currency exchange (when permitted by
        the Ministry of Finance).

(29)    To carry on the business of import and export for distribution of the
        goods stipulated in the objects.

(30)    To carry on the business of hair-cutting, hair-dressing, beauty-salon,
        dress-making, and laundry.

(31)    To carry on the business of commercial photograph, the development,
        printing and enlargement of photographs, including the same for
        documents.

(32)    To carry on the business of production and distribution of movie films.

(33)    To carry on the business of a service station selling petrol and
        providing repair, maintenance and inspection services, lubrication,
        spraying, and anti-rust treatment for all kinds of vehicles, including
        the services of installation, inspection and fixing of all kinds of
        anti-theft and accident prevention accessories.

<PAGE>

                                     - 28 -

(34)    To carry on service businesses in legal, accountancy, engineering and
        architectural fields, including advertising.

(35)    To undertake a service business providing guarantees for debt, liability
        or performance of the contractual obligations of other persons,
        including the guarantee for a person who has entered or departed the
        country in accordance with the laws of immigration, taxation and other
        laws.

(36)    To undertake a service business of counselling and making
        recommendations on problems related to work management, commerce and
        industry, including problems of manufacturing, marketing and
        distributing.

(37)    To carry on a service business of collecting, compiling, preparing,
        publishing and distributing statistics, data and information concerning
        agriculture, industry, commerce, finance and the market, including
        analyzing and assessing the outcome of business transactions.

(38)    To carry on the business of a private hospital and nursing home, of
        curing of the ill and people in pain, and providing technical
        instruction and training in medicine and health science.

(39)    To carry on a service business of being a manager who protects
        interests, collects and receives the benefit and manages the properties
        of others.

(40)    To carry on the business of bidding for sale of goods and hire of work
        in accordance with all of the objects, for any person, body of persons,
        juristic person, government agency and state enterprise.

(41)    To carry on the business of cellular telephone communication services.

(42)    To engage in the business of providing news and telex communication
        services and in the business of providing services on television and
        radio, mass communication, and all kind of telecommunication; to
        produce, procure, and to be hired to produce and procure videotape,
        transmitter and receiver radio, television and video, and all kind of
        communication equipment including necessary materials and devices in
        order to implement its business engaged, or its services provided, or
        otherwise be hired of service.

(43)    To carry on its licensed or assigned business and to provide services
        thereto, or to engage in the business requested by any government
        agency, state enterprise, juristic person, or private agency both in and
        outside Thailand, and to enter into or become an associate of a business
        and affair which it is licensed or assigned or be hired of service in
        relation with radio, television, video, equipment or all kind of
        telecommunication instruments or mass communication businesses.

<PAGE>

                                     - 29 -

(44)    To carry on the business to let property, sell, rent, let, hire
        purchase, let for hire purchase, sell with right of redemption,
        exchange, mortgage, or acquire or dispose of land and immovable property
        by any means. To use or utilize land or other assets and to mortgage,
        take mortgage of, rent, let, or exchange of movable properties;

(45)    To buy, sell, assemble, install radio and telephone appliances and all
        kind of telecommunications and electronic equipment, as well as radio
        wires and telegram wires used together with the such equipment and
        appliances, metals used for installing pole and telephone wires, all
        kinds of equipment to be used or to facilitate radio telegram in every
        frequency including receiver or transmitter in any means, equipment for
        marine telecommunication, tube communication and control systems,
        satellite communication system, radio communication and accessories
        thereof.

(46)    To carry on the business of repair, and maintenance services of
        merchandises pursuant to the Company's objects and to clean, test, and
        give instruction in connection with the application, maintenance and
        operation thereof.

(47)    To make contact with govern agencies and competent office to acquire or
        dispose of exclusive rights, agreements, rights, ownership, licenses,
        rights over trademark, industrial property, copyrights, patents,
        concessions or privileges necessary for business operation of the
        Company.

(48)    To file application and hold permits and other registration which are
        necessary to or for the purpose of the business of the Company.

(49)    To carry on the business of installation, repair, and maintenance of all
        kind of public telephone and to import, manufacture and sell all kind of
        telephone appliances, public telephone appliances and telephone cards.

(50)    To carry on telecommunication business as well as to market
        cellular-system telephone service on Digital AMPS 800 Band A of
        Telecommunication Authority of Thailand, i.e. to procure sale channel
        for cellular phone and service for Digital AMPS 800 Band A of the
        Telecommunication Authority of Thailand and to procure additional
        services in connection therewith, after-sale services and other services
        in connection with sales and promotion.

<PAGE>

                                     - 30 -

                                                                 Attachment 17.3

                Technical Specifications and Implementation Plan

                                      [***]

<PAGE>

                                     - 31 -

                                                                 Attachment 17.4
                      CELL SITE ACCEPTANCE TEST INDICATORS

        After cell site equipment installation, all site operation will undergo
initial testing and provisional testing which will include BTS calibration,
Transmit / Receive path measurement, drive test for RF coverage, verifying
handoff paths and performance monitoring for one week. All the above tests must
be witnessed and accepted by staff from CAT.

        When the above tests has been accomplished CAT will be invited to join
the following tests for Ready-For-Service Acceptance :

1. Visual check of all antennae, ancillaries are properly installed with
   the necessary grounding.
2. Verify the Cell Site configuration such that the equipment is properly
   installed.
3. Verify GPS signed reception and the perform BTS synchronization.
4. Call set up test with 95% successful rate at -75 dBm field strength
   boundary on street level.
        - 10 origination calls to a fixed line phone.
        - 10 termination calls from a fixed line phone.
        - 10 origination calls to a CDMA mobile phone.
        - 10 termination calls from a CDMA mobile phone.
        - Call duration 90 seconds.

<PAGE>

                                     - 32 -

                                                                 Attachment 17.5

                      Scope of Work for Network Management.

                                      [***]

<PAGE>

                                     - 33 -

                                                                 Attachment 17.6

             Rules and Methods of Calculations of Lease Fee and Wage

                                      [***]

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