EXHIBIT 99.1

                             AMKOR TECHNOLOGY, INC.

                             LETTER OF TRANSMITTAL
                         FOR TENDER OF ALL OUTSTANDING

                    $425,000,000 7.75% SENIOR NOTES DUE 2013

                                IN EXCHANGE FOR
                                   REGISTERED

                    $425,000,000 7.75% SENIOR NOTES DUE 2013

      THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON
            , 2003, UNLESS EXTENDED (THE "EXPIRATION DATE"). NOTES TENDERED IN
SUCH EXCHANGE OFFER MAY BE WITHDRAWN AT ANY TIME PRIOR TO 5:00 P.M., NEW YORK
CITY TIME, ON THE EXPIRATION DATE.

                         DELIVER TO THE EXCHANGE AGENT:

                         U.S. BANK NATIONAL ASSOCIATION

<Table>
                                                              
By Mail (Registered or Certified     By Facsimile Transmission
 Mail Recommended) or Courier:     (Eligible Institutions Only):         Confirm by Telephone:
                                                                             (651) 244-1197
 U.S. Bank National Association            (651) 244-1537
    Corporate Trust Services       Attention: Specialized Finance
     180 East Fifth Street
       St. Paul, MN 55101
 Attention: Specialized Finance
</Table>

     DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE OR
TRANSMISSION OF INSTRUCTIONS VIA A FACSIMILE NUMBER OTHER THAN THE ONE LISTED
ABOVE WILL NOT CONSTITUTE A VALID DELIVERY. THE INSTRUCTIONS ACCOMPANYING THIS
LETTER OF TRANSMITTAL SHOULD BE READ CAREFULLY BEFORE THE LETTER OF TRANSMITTAL
IS COMPLETED.

     The undersigned hereby acknowledges receipt and review of the prospectus
dated          , 2003 of Amkor Technology, Inc. (the "COMPANY") and this letter
of transmittal. These two documents together constitute the Company's offer to
exchange up to $425,000,000 in aggregate principal amount of its 7.75% Senior
Notes due 2013 (the "EXCHANGE NOTES"), the issuance of which has been registered
under the Securities Act of 1933, as amended (the "SECURITIES ACT"), for a like
principal amount of its outstanding 7.75% Senior Notes due 2013 (the "ORIGINAL
NOTES") (the "EXCHANGE OFFER").

     The Company reserves the right, at any time or from time to time, to extend
the period of time during which the Exchange Offer for the Original Notes is
open, at its discretion, in which event the term "Expiration Date" shall mean
the latest date to which such Exchange Offer is extended. The Company shall
notify U.S. Bank National Association (the "Exchange Agent") of any extension by
oral or written notice and shall make a public announcement thereof no later
than 9:00 a.m., New York City time, on the next business day after the
previously scheduled Expiration Date.


     This letter of transmittal is to be used by a holder of Original Notes (i)
if certificates of Original Notes are to be forwarded herewith or (ii) if
delivery of Original Notes is to be made by book-entry transfer to the account
maintained by the Exchange Agent at The Depository Trust Company ("DTC")
pursuant to the procedures set forth in the prospectus under the captions "The
Exchange Offer" and "Book-Entry; Delivery and Form" and an "agent's message" is
not delivered as described in the prospectus under the caption "The Exchange
Offer -- Tendering Through DTC's Automated Tender Offer Program." Tenders by
book-entry transfer may also be made by delivering an agent's message in lieu of
this letter of transmittal. Holders of Original Notes whose Original Notes are
not immediately available, or who are unable to deliver their Original Notes,
this letter of transmittal and all other documents required hereby to the
Exchange Agent on or prior to the Expiration Date for the Exchange Offer, or who
are unable to complete the procedure for book-entry transfer on a timely basis,
must tender their Original Notes according to the guaranteed delivery procedures
set forth in the prospectus under the caption "The Exchange Offer -- Guaranteed
Delivery Procedures." See Instruction 2.

     DELIVERY OF DOCUMENTS TO DTC DOES NOT CONSTITUTE DELIVERY TO THE EXCHANGE
AGENT.

     The term "holder" with respect to the Exchange Offer for Original Notes
means any person in whose name such Original Notes are registered on the books
of the Company, any person who holds such Original Notes and has obtained a
properly completed bond power from the registered holder or any participant in
the DTC system whose name appears on a security position listing as the holder
of such Original Notes and who desires to deliver such Original Notes by
book-entry transfer at DTC. The undersigned has completed, executed and
delivered this letter of transmittal to indicate the action the undersigned
desires to take with respect to such Exchange Offer. Holders who wish to tender
their Original Notes must complete this letter of transmittal in its entirety
(unless such Original Notes are to be tendered by book-entry transfer and an
agent's message is delivered in lieu hereof).

     PLEASE READ THE ENTIRE LETTER OF TRANSMITTAL AND THE PROSPECTUS CAREFULLY
BEFORE CHECKING ANY BOX BELOW.

     THE INSTRUCTIONS INCLUDED WITH THIS LETTER OF TRANSMITTAL MUST BE FOLLOWED.
QUESTIONS AND REQUESTS FOR ASSISTANCE OR FOR ADDITIONAL COPIES OF THE PROSPECTUS
AND THIS LETTER OF TRANSMITTAL MAY BE DIRECTED TO THE EXCHANGE AGENT.

                                        2


     List below the Original Notes to which this letter of transmittal relates.
If the space below is inadequate, list the registered numbers and principal
amounts on a separate signed schedule and affix the list to this letter of
transmittal.

<Table>
<Caption>
- ------------------------------------------------------------------------------------------------------------------------------
                                            DESCRIPTION OF ORIGINAL NOTES TENDERED
- ------------------------------------------------------------------------------------------------------------------------------
                                                                               AGGREGATE PRINCIPAL
      NAME(S) AND ADDRESS(ES) OF REGISTERED HOLDER(S)                               AMOUNT OF
      EXACTLY AS NAME(S) APPEAR(S) ON ORIGINAL NOTES           REGISTERED          REPRESENTED            PRINCIPAL AMOUNT
                     (PLEASE FILL IN)                          NUMBER(S)*           BY NOTE(S)               TENDERED**
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                              

- ------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------

                                                                 TOTAL
- ------------------------------------------------------------------------------------------------------------------------------
 * Need not be completed by book-entry holders.
** Unless otherwise indicated, any tendering holder of Original Notes will be deemed to have tendered the entire aggregate
   principal amount represented by such Original Notes. All tenders must be in integral multiples of $1,000.
- ------------------------------------------------------------------------------------------------------------------------------
</Table>

[ ]  CHECK HERE IF TENDERED ORIGINAL NOTES ARE ENCLOSED HEREWITH.

[ ]  CHECK HERE AND COMPLETE THE FOLLOWING IF TENDERED ORIGINAL NOTES ARE BEING
     DELIVERED BY BOOK-ENTRY TRANSFER MADE TO THE ACCOUNT MAINTAINED BY THE
     EXCHANGE AGENT WITH THE DTC (FOR USE BY ELIGIBLE INSTITUTIONS ONLY):

    Name of Tendering Institution:
- --------------------------------------------------------------------------------

    DTC Account Number(s):
- --------------------------------------------------------------------------------

    Transaction Code Number(s):
- --------------------------------------------------------------------------------

[ ]  CHECK HERE AND COMPLETE THE FOLLOWING IF TENDERED ORIGINAL NOTES ARE BEING
     DELIVERED PURSUANT TO A NOTICE OF GUARANTEED DELIVERY EITHER ENCLOSED
     HEREWITH OR PREVIOUSLY DELIVERED TO THE EXCHANGE AGENT (COPY ATTACHED) (FOR
     USE BY ELIGIBLE INSTITUTIONS ONLY):

    Name(s) of Registered holder(s) of Original Notes:
- --------------------------------------------------------------------------------

    Date of Execution of Notice of Guaranteed Delivery:
- --------------------------------------------------------------------------------

    Window Ticket Number (if available):
- --------------------------------------------------------------------------------

     Name of Eligible Institution that Guaranteed Delivery:
- --------------------------------------------------------------------------------

    DTC Account Number(s) (if delivered by book-entry transfer):
- --------------------------------------------------------------------------------

    Transaction Code Number(s) (if delivered by book-entry transfer):
- --------------------------------------------------------------------------------

    Name of Tendering Institution (if delivered by book-entry transfer):
- --------------------------------------------------------------------------------
                                        3


[ ]  CHECK HERE AND COMPLETE THE FOLLOWING IF YOU ARE A BROKER-DEALER AND WISH
     TO RECEIVE 10 ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY
     AMENDMENTS OR SUPPLEMENTS THERETO:

       Name:
- --------------------------------------------------------------------------------

       Address:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

     If the undersigned is not a broker-dealer, the undersigned represents that
it is not engaged in, and does not intend to engage in, a distribution of
Exchange Notes. If the undersigned is a broker-dealer that will receive Exchange
Notes for its own account in exchange for Original Notes that were acquired as a
result of market-making activities or other trading activities, it acknowledges
that it will deliver a prospectus in connection with any resale of such Exchange
Notes; however, by so acknowledging and by delivering a prospectus, the
undersigned will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.

                                        4


                       SIGNATURES MUST BE PROVIDED BELOW
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY

Ladies and Gentlemen:

     Subject to the terms and conditions of the Exchange Offer, the undersigned
hereby tenders to the Company for exchange the principal amount of Original
Notes indicated above. Subject to and effective upon the acceptance for exchange
of the principal amount of Original Notes tendered in accordance with this
letter of transmittal, the undersigned hereby exchanges, assigns and transfers
to, or upon the order of, the Company all right, title and interest in and to
such Original Notes tendered for exchange hereby. The undersigned hereby
irrevocably constitutes and appoints the Exchange Agent the true and lawful
agent and attorney-in-fact for the undersigned (with full knowledge that said
Exchange Agent also acts as the agent for the Company in connection with the
Exchange Offer) with respect to the tendered Original Notes with full power of
substitution to (i) deliver such Original Notes, or transfer ownership of such
Original Notes on the account books maintained by the DTC, to the Company and
deliver all accompanying evidences of transfer and authenticity, and (ii)
present such Original Notes for transfer on the books of the Company and receive
all benefits and otherwise exercise all rights of beneficial ownership of such
Original Notes, all in accordance with the terms of the Exchange Offer. The
power of attorney granted in this paragraph shall be deemed to be irrevocable
and coupled with an interest.

     The undersigned hereby represents and warrants that the undersigned has
full power and authority to tender, exchange, assign and transfer the Original
Notes tendered hereby and to acquire the Exchange Notes issuable upon the
exchange of such tendered Original Notes, and that the Company will acquire good
and unencumbered title thereto, free and clear of all liens, restrictions,
charges and encumbrances and not subject to any adverse claim, when the same are
accepted for exchange by the Company.

     The undersigned acknowledges that the Exchange Offer is being made in
reliance upon interpretations set forth in no-action letters issued to third
parties by the staff of the Securities and Exchange Commission (the "SEC"),
including Exxon Capital Holdings Corporation (available May 13, 1988), Morgan
Stanley & Co. Incorporated (available June 5, 1991), Mary Kay Cosmetics, Inc.
(available June 5, 1991) and similar no-action letters (the "Prior No-Action
Letters"), that the Exchange Notes issued in exchange for the Original Notes
pursuant to the Exchange Offer may be offered for resale, resold and otherwise
transferred by holders thereof (other than any such holder that is an
"affiliate" of the Company within the meaning of Rule 405 under the Securities
Act), without compliance with the registration and prospectus delivery
provisions of the Securities Act, PROVIDED that such Exchange Notes are acquired
in the ordinary course of such holders' business and such holders are not
engaging in, do not intend to engage in and have no arrangement or understanding
with any person to participate in a distribution of such Exchange Notes. The SEC
has not, however, considered the Exchange Offer in the context of a no-action
letter, and there can be no assurance that the staff of the SEC would make a
similar determination with respect to the Exchange Offer as in other
circumstances.

     The undersigned hereby further represents to the Company that (i) any
Exchange Notes received are being acquired in the ordinary course of business of
the person receiving such Exchange Notes, whether or not the undersigned, (ii)
neither the undersigned nor any such other person has an arrangement or
understanding with any person to participate in the distribution of the Original
Notes or the Exchange Notes within the meaning of the Securities Act and (iii)
neither the holder nor any such other person is an "affiliate," as defined in
Rule 405 under the Securities Act, of the Company or, if it is such an
affiliate, it will comply with the registration and prospectus delivery
requirements of the Securities Act to the extent applicable.

     If the undersigned is not a broker-dealer, the undersigned represents that
it is not engaged in, and does not intend to engage in, a distribution of
Exchange Notes. If the undersigned is a broker-dealer that will receive Exchange
Notes for its own account in exchange for Original Notes that were acquired as a
result of market-making activities or other trading activities, it acknowledges
that it will deliver a prospectus in connection with any resale of such Exchange
Notes; however, by so acknowledging and by delivering a prospectus, the
undersigned will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act. The undersigned acknowledges that if the
undersigned is tendering Original Notes in the Exchange Offer with the intention
of participating in any manner in a distribution of the Exchange Notes (i) the
undersigned cannot rely on the position of the staff of the SEC set forth in the
Prior No-Action Letters and, in the absence of an exemption therefrom, must
comply with the registration and prospectus delivery requirements of the
Securities Act in connection with a secondary resale transaction of the Exchange
Notes, in which case
                                        5


the registration statement must contain the selling security holder information
required by Item 507 or Item 508, as applicable, of Regulation S-K of the SEC,
and (ii) failure to comply with such requirements in such instance could result
in the undersigned incurring liability under the Securities Act for which the
undersigned is not indemnified by the Company.

     The undersigned will, upon request, execute and deliver any additional
documents deemed by the Exchange Agent or the Company to be necessary or
desirable to complete the exchange, assignment and transfer of the Original
Notes tendered hereby, including the transfer of such Original Notes on the
account books maintained by the DTC.

     For purposes of the Exchange Offer, the Company shall be deemed to have
accepted for exchange validly tendered Original Notes when, as and if the
Company gives oral or written notice thereof to the Exchange Agent. Any tendered
Original Notes that are not accepted for exchange pursuant to such Exchange
Offer for any reason will be returned, without expense, to the undersigned as
promptly as practicable after the Expiration Date for such Exchange Offer.

     All authority conferred or agreed to be conferred by this letter of
transmittal shall survive the death, incapacity or dissolution of the
undersigned, and every obligation of the undersigned under this letter of
transmittal shall be binding upon the undersigned's successors, assigns, heirs,
executors, administrators, trustees in bankruptcy and legal representatives.

     The undersigned acknowledges that the Company's acceptance of properly
tendered Original Notes pursuant to the procedures described under the caption
"The Exchange Offer -- Procedures for Tendering" in the prospectus and in the
instructions hereto will constitute a binding agreement between the undersigned
and the Company upon the terms and subject to the conditions of the Exchange
Offer.

     The Exchange Offer is subject to certain conditions set forth in the
prospectus under the caption "The Exchange Offer -- Conditions to the Exchange
Offer." The undersigned recognizes that as a result of these conditions (which
may be waived, in whole or in part, by the Company), the Company may not be
required to exchange any of the Original Notes tendered hereby.

     Unless otherwise indicated under "Special Issuance Instructions," please
issue the Exchange Notes issued in exchange for the Original Notes accepted for
exchange, and return any Original Notes not tendered or not exchanged, in the
name(s) of the undersigned (or, in the case of a book-entry delivery of Original
Notes, please credit the account indicated above maintained at the DTC).
Similarly, unless otherwise indicated under "Special Delivery Instructions,"
please mail or deliver the Exchange Notes issued in exchange for the Original
Notes accepted for exchange and any Original Notes not tendered or not exchanged
(and accompanying documents, as appropriate) to the undersigned at the address
shown below the undersigned's signature(s). In the event that both "Special
Issuance Instructions" and "Special Delivery Instructions" are completed, please
issue the Exchange Notes issued in exchange for the Original Notes accepted for
exchange in the name(s) of, and return any Original Notes not tendered or not
exchanged to, the person(s) (or account(s)) so indicated. The undersigned
recognizes that the Company has no obligation pursuant to the "Special Issuance
Instructions" and "Special Delivery Instructions" to transfer any Original Notes
from the name of the registered holder(s) thereof if the Company does not accept
for exchange any of the Original Notes so tendered for exchange.

                                        6


                         SPECIAL ISSUANCE INSTRUCTIONS
                           (SEE INSTRUCTIONS 5 AND 6)

     To be completed ONLY (i) if Original Notes in a principal amount not
tendered, or Exchange Notes issued in exchange for Original Notes accepted for
exchange, are to be issued in the name of someone other than the undersigned, or
(ii) if Original Notes tendered by book-entry transfer which are not exchanged
are to be returned by credit to an account maintained at the DTC other than the
DTC Account Number set forth above. Issue Exchange Notes and/or Original Notes
to:

Name:
- --------------------------------------------------------------------------------
                             (PLEASE TYPE OR PRINT)

Address:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                               (INCLUDE ZIP CODE)

- --------------------------------------------------------------------------------
                 (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER)

                         SPECIAL DELIVERY INSTRUCTIONS

                           (SEE INSTRUCTIONS 5 AND 6)

     To be completed ONLY if Original Notes in a principal amount not tendered,
or Exchange Notes issued in exchange for Original Notes accepted for exchange,
are to be mailed or delivered to someone other than the undersigned, or to the
undersigned at an address other than that shown below the undersigned's
signature. Mail or deliver Exchange Notes and/or Original Notes to:

Name:
- --------------------------------------------------------------------------------
                             (PLEASE TYPE OR PRINT)

Address:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                               (INCLUDE ZIP CODE)

- --------------------------------------------------------------------------------
                 (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER)

[ ] Credit unexchanged Original Notes delivered by book-entry transfer to the
    DTC account set forth below.

DTC Account Number:
- --------------------------------------------------------------------------------

                              BROKER-DEALER STATUS

     To be completed ONLY of the Beneficial Owner is a participating
Broker-Dealer who holds securities acquired as a result of market making or
other trading activities and wishes to receive 10 additional copies of the
Prospectus and 10 copies of any amendments or supplements thereto for use in
connection with resales of new securities received in exchange for such
securities:

Name:
- --------------------------------------------------------------------------------

Address:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                              (INCLUDING ZIP CODE)

Area Code and Telephone Number of Contact Person:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                 (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER)

                                        7


                                   IMPORTANT

                 PLEASE SIGN HERE WHETHER OR NOT ORIGINAL NOTES
                      ARE BEING PHYSICALLY TENDERED HEREBY
               (COMPLETE ACCOMPANYING SUBSTITUTE FORM W-9 BELOW)

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
            (SIGNATURE(S) OF REGISTERED HOLDER(S) OF ORIGINAL NOTES)

Dated ------------------------------ , 2003

     (The above lines must be signed by the registered holder(s) of Original
Notes as your name(s) appear(s) on the Original Notes or on a security position
listing, or by person(s) authorized to become registered holder(s) by a properly
completed bond power from the registered holder(s), a copy of which must be
transmitted with this letter of transmittal. If Original Notes to which this
letter of transmittal relate are held of record by two or more joint holders,
then all such holders must sign this letter of transmittal. If signature is by a
trustee, executor, administrator, guardian, attorney-in-fact, officer of a
corporation or other person acting in a fiduciary or representative capacity,
then such person must (i) set forth his or her full title below and (ii) unless
waived by the Company, submit evidence satisfactory to the Company of such
person's authority so to act. See Instruction 5 regarding the completion of this
letter of transmittal, printed below.)

Name(s):
- --------------------------------------------------------------------------------
                             (PLEASE TYPE OR PRINT)

Capacity:
- --------------------------------------------------------------------------------

Address:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                              (INCLUDING ZIP CODE)

Area Code and Telephone Number:
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                 (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER)

                                        8


                         MEDALLION SIGNATURE GUARANTEE
                         (IF REQUIRED BY INSTRUCTION 5)

       Certain signatures must be guaranteed by an Eligible Institution.

Signature(s) Guaranteed by an Eligible Institution:
- --------------------------------------------------------------------------------
                                                                    (AUTHORIZED
                                                                     SIGNATURE)

- --------------------------------------------------------------------------------
                                    (TITLE)

- --------------------------------------------------------------------------------
                                 (NAME OF FIRM)

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                          (ADDRESS, INCLUDE ZIP CODE)

- --------------------------------------------------------------------------------
                        (AREA CODE AND TELEPHONE NUMBER)

Dated ------------------------------ , 2003

                                        9


                                  INSTRUCTIONS

         FORMING PART OF THE TERMS AND CONDITIONS OF THE EXCHANGE OFFER

     1.  DELIVERY OF THIS LETTER OF TRANSMITTAL AND ORIGINAL NOTES OR AGENT'S
MESSAGE AND BOOK-ENTRY CONFIRMATIONS. All physically delivered Original Notes or
any confirmation of a book-entry transfer to the Exchange Agent's account at the
DTC of Original Notes tendered by book-entry transfer (a "Book-Entry
Confirmation"), as well as a properly completed and duly executed copy of this
letter of transmittal or facsimile hereof (or an agent's message in lieu
hereof), and any other documents required by this letter of transmittal, must be
received by the Exchange Agent at its address set forth herein prior to 5:00
p.m., New York City time, on the Expiration Date for the Exchange Offer, or the
tendering holder must comply with the guaranteed delivery procedures set forth
below. THE METHOD OF DELIVERY OF THE TENDERED ORIGINAL NOTES, THIS LETTER OF
TRANSMITTAL AND ALL OTHER REQUIRED DOCUMENTS TO THE EXCHANGE AGENT IS AT THE
ELECTION AND RISK OF THE HOLDER AND, EXCEPT AS OTHERWISE PROVIDED BELOW, THE
DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED OR CONFIRMED BY THE
EXCHANGE AGENT. INSTEAD OF DELIVERY BY MAIL, IT IS RECOMMENDED THAT THE HOLDER
USE AN OVERNIGHT OR HAND DELIVERY SERVICE. IN ALL CASES, SUFFICIENT TIME SHOULD
BE ALLOWED TO ASSURE DELIVERY TO THE EXCHANGE AGENT BEFORE THE EXPIRATION DATE.
NO LETTER OF TRANSMITTAL OR ORIGINAL NOTES SHOULD BE SENT TO THE COMPANY.

     2.  GUARANTEED DELIVERY PROCEDURES. Holders who wish to tender their
Original Notes and (a) whose Original Notes are not immediately available, (b)
who cannot deliver their Original Notes, this letter of transmittal or any other
documents required hereby to the Exchange Agent prior to the applicable
Expiration Date or (c) who are unable to comply with the applicable procedures
under the DTC's Automated Tender Offer Program on a timely basis, must tender
their Original Notes according to the guaranteed delivery procedures set forth
in the prospectus. Pursuant to such procedures: (i) such tender must be made by
or through a firm which is a member of a registered national securities exchange
or of the National Association of Securities Dealers, Inc., a commercial bank or
a trust company having an office or correspondent in the United States or an
"eligible guarantor institution" within the meaning of Rule 17Ad-15 under the
Exchange Act (an "Eligible Institution"); (ii) prior to the applicable
Expiration Date, the Exchange Agent must have received from the Eligible
Institution a properly completed and duly executed notice of guaranteed delivery
(by facsimile transmission, mail or hand delivery) or a properly transmitted
agent's message and notice of guaranteed delivery setting forth the name and
address of the holder of the Original Notes, the registration number(s) of such
Original Notes and the total principal amount of Original Notes tendered,
stating that the tender is being made thereby and guaranteeing that, within
three New York Stock Exchange trading days after such Expiration Date, this
letter of transmittal (or facsimile hereof or an agent's message in lieu hereof)
together with the Original Notes in proper form for transfer (or a Book-Entry
Confirmation) and any other documents required hereby, will be deposited by the
Eligible Institution with the Exchange Agent; and (iii) this letter of
transmittal (or facsimile hereof or an agent's message in lieu hereof) together
with the certificates for all physically tendered Original Notes in proper form
for transfer (or Book-Entry Confirmation, as the case may be) and all other
documents required hereby are received by the Exchange Agent within three New
York Stock Exchange trading days after such Expiration Date.

     Any holder of Original Notes who wishes to tender Original Notes pursuant
to the guaranteed delivery procedures described above must ensure that the
Exchange Agent receives the notice of guaranteed delivery prior to 5:00 p.m.,
New York City time, on the applicable Expiration Date. Upon request of the
Exchange Agent, a notice of guaranteed delivery will be sent to holders who wish
to tender their Original Notes according to the guaranteed delivery procedures
set forth above.

     See "The Exchange Offer -- Guaranteed Delivery Procedures" section of the
prospectus.

     3.  TENDER BY HOLDER. Only a holder of Original Notes may tender such
Original Notes in the Exchange Offer. Any beneficial holder of Original Notes
who is not the registered holder and who wishes to tender should arrange with
the registered holder to execute and deliver this letter of transmittal on his
behalf or must, prior to completing and executing this letter of transmittal and
delivering his Original Notes, either make appropriate arrangements to register
ownership of the Original Notes in such holder's name or obtain a properly
completed bond power from the registered holder.

                                        10


     4.  PARTIAL TENDERS. Tenders of Original Notes will be accepted only in
integral multiples of $1,000. If less than the entire principal amount of any
Original Notes is tendered, the tendering holder should fill in the principal
amount tendered in the fourth column of the box entitled "Description of
Original Notes Tendered" above. The entire principal amount of Original Notes
delivered to the Exchange Agent will be deemed to have been tendered unless
otherwise indicated. If the entire principal amount of all Original Notes is not
tendered, then Original Notes for the principal amount of Original Notes not
tendered and Exchange Notes issued in exchange for any Original Notes accepted
will be returned to the holder as promptly as practicable after the Original
Notes are accepted for exchange.

     5.  SIGNATURES ON THIS LETTER OF TRANSMITTAL; BOND POWERS AND ENDORSEMENTS;
MEDALLION GUARANTEE OF SIGNATURES. If this letter of transmittal (or facsimile
hereof) is signed by the record holder(s) of the Original Notes tendered hereby,
the signature(s) must correspond exactly with the name(s) as written on the face
of the Original Notes without alteration, enlargement or any change whatsoever.
If this letter of transmittal (or facsimile hereof) is signed by a participant
in the DTC, the signature must correspond with the name as it appears on the
security position listing as the holder of the Original Notes.

     If this letter of transmittal (or facsimile hereof) is signed by the
registered holder(s) of Original Notes listed and tendered hereby and the
Exchange Notes issued in exchange therefor are to be issued (or any untendered
principal amount of Original Notes is to be reissued) to the registered
holder(s), the said holder(s) need not and should not endorse any tendered
Original Notes, nor provide a separate bond power. In any other case, such
holder(s) must either properly endorse the Original Notes tendered or transmit a
properly completed separate bond power with this letter of transmittal, with the
signatures on the endorsement or bond power guaranteed by an Eligible
Institution.

     If this letter of transmittal (or facsimile hereof) or any Original Notes
or bond powers are signed by trustees, executors, administrators, guardians,
attorneys-in-fact, officers of corporations or others acting in a fiduciary or
representative capacity, such persons should so indicate when signing, and,
unless waived by the Company, evidence satisfactory to the Company of their
authority to act must be submitted with this letter of transmittal.

     NO SIGNATURE GUARANTEE IS REQUIRED IF (i) THIS LETTER OF TRANSMITTAL (OR
FACSIMILE HEREOF) IS SIGNED BY THE REGISTERED HOLDER(S) OF THE ORIGINAL NOTES
TENDERED HEREIN (OR BY A PARTICIPANT IN THE DTC WHOSE NAME APPEARS ON A SECURITY
POSITION LISTING AS THE OWNER OF THE TENDERED ORIGINAL NOTES) AND THE EXCHANGE
NOTES ARE TO BE ISSUED DIRECTLY TO SUCH REGISTERED HOLDER(S) (OR, IF SIGNED BY A
PARTICIPANT IN THE DTC, DEPOSITED TO SUCH PARTICIPANT'S ACCOUNT AT THE DTC) AND
NEITHER THE BOX ENTITLED "SPECIAL DELIVERY INSTRUCTIONS" NOR THE BOX ENTITLED
"SPECIAL REGISTRATION INSTRUCTIONS" HAS BEEN COMPLETED, OR (ii) SUCH ORIGINAL
NOTES ARE TENDERED FOR THE ACCOUNT OF AN ELIGIBLE INSTITUTION. IN ALL OTHER
CASES, ALL SIGNATURES ON THIS LETTER OF TRANSMITTAL (OR FACSIMILE HEREOF) MUST
BE GUARANTEED BY AN ELIGIBLE INSTITUTION.

     6.  SPECIAL ISSUANCE AND DELIVERY INSTRUCTIONS. Tendering holders should
indicate, in the applicable box or boxes, the name and address to which Exchange
Notes or substitute Original Notes for principal amounts not tendered or not
accepted for exchange are to be issued or sent, if different from the name and
address of the person signing this letter of transmittal. In the case of
issuance in a different name, the taxpayer identification or social security
number of the person named must also be indicated. Holders tendering Original
Notes by book-entry transfer may request that Original Notes not exchanged be
credited to such account maintained at the DTC as such noteholder may designate
hereon. If no such instructions are given, such Original Notes not exchanged
will be returned to the name and address (or account number) of the person
signing this letter of transmittal.

     7.  TRANSFER TAXES. The Company will pay all transfer taxes, if any,
applicable to the exchange of Original Notes pursuant to the Exchange Offer. If,
however, Exchange Notes or Original Notes for principal amounts not tendered or
accepted for exchange are to be delivered to, or are to be registered or issued
in the name of, any person other than the registered holder of the Original
Notes tendered hereby, or if tendered Original Notes are registered in the name
of any person other than the person signing this letter of transmittal, or if a
transfer tax is imposed for any reason other than the exchange of Original Notes
pursuant to the Exchange Offer, then the amount of any such transfer taxes
(whether imposed on the registered holder or any other persons) will be payable
by the tendering holder. If satisfactory evidence of payment of such taxes or
exemption therefrom is not submitted with this letter of transmittal, the amount
of such transfer
                                        11


taxes will be billed directly to such tendering holder and the Exchange Agent
will retain possession of an amount of Exchange Notes with a face amount at
least equal to the amount of such transfer taxes due by such tendering holder
pending receipt by the Exchange Agent of the amount of such taxes.

     8.  TAX IDENTIFICATION NUMBER. Federal income tax law requires that a
holder of any Original Notes or Exchange Notes must provide the Company (as
payor) with its correct taxpayer identification number ("TIN"), which, in the
case of a holder who is an individual is his or her social security number. If
the Company is not provided with the correct TIN, the holder may be subject to a
$50 penalty imposed by the Internal Revenue Service and backup withholding of
28% on interest payments on the Exchange Notes.

     To prevent backup withholding, each tendering holder must provide such
holder's correct TIN by completing the Substitute Form W-9 set forth herein,
certifying that the holder is a U.S. person (including a U.S. alien), that the
TIN provided is correct (or that such holder is awaiting a TIN), and that (i)
the holder has not been notified by the Internal Revenue Service that such
holder is subject to backup withholding as a result of failure to report all
interest or dividends or (ii) the Internal Revenue Service has notified the
holder that such holder is no longer subject to backup withholding. If the
Exchange Notes will be registered in more than one name or will not be in the
name of the actual owner, consult the instructions on Internal Revenue Service
Form W-9, which may be obtained from the Exchange Agent, for information on
which TIN to report.

     If a tendering holder does not have a TIN, that holder should consult the
instructions on Form W-9 concerning applying for a TIN, check the box in Part
III of the Substitute Form W-9, write "applied for" in lieu of its TIN and sign
and date the form and the Certificate of Awaiting Taxpayer Identification
Number. Checking this box, writing "applied for" on the form and signing such
certificate means that such holder has already applied for a TIN or that such
holder intends to apply for one in the near future. If the holder does not
provide its TIN to the Company within 60 days, backup withholding will begin and
continue until such holder furnishes its TIN to the Company.

     Certain foreign individuals and entities will not be subject to backup
withholding or information reporting if they submit a Form W-8BEN (or such other
Form W-8, as applicable) signed under penalties of perjury, attesting to, among
other things, their foreign status. An appropriate Form W-8 can be obtained from
the Exchange Agent.

     The Company reserves the right in its sole discretion to take whatever
steps are necessary to comply with the Company's obligations regarding backup
withholding.

     9.  VALIDITY OF TENDERS. All questions as to the validity, form,
eligibility, time of receipt, acceptance and withdrawal of tendered Original
Notes will be determined by the Company in its sole discretion, which
determination will be final and binding. The Company reserves the absolute right
to reject any and all Original Notes not properly tendered or any Original Notes
the Company's acceptance of which might, in the opinion of the Company's
counsel, be unlawful. The Company also reserves the absolute right to waive any
conditions of the Exchange Offer or defects or irregularities of tenders as to
particular Original Notes. The Company's interpretation of the terms and
conditions of the Exchange Offer (including this letter of transmittal and the
instructions hereto) shall be final and binding on all parties. Unless waived,
any defects or irregularities in connection with tenders of Original Notes must
be cured within such time as the Company shall determine. Neither the Company,
the Exchange Agent nor any other person shall be under any duty to give
notification of defects or irregularities with respect to tenders of Original
Notes nor shall any of them incur any liability for failure to give such
notification.

     10.  WAIVER OF CONDITIONS. The Company reserves the absolute right to
waive, in whole or part, any of the conditions to the Exchange Offer set forth
in the prospectus.

     11.  NO CONDITIONAL TENDER. No alternative, conditional, irregular or
contingent tender of Original Notes will be accepted.

     12.  MUTILATED, LOST, STOLEN OR DESTROYED ORIGINAL NOTES. Any holder whose
Original Notes have been mutilated, lost, stolen or destroyed should contact the
Exchange Agent at the address indicated above for further instructions. This
letter of transmittal and related documents cannot be processed until the
procedures for replacing lost, stolen or destroyed Original Notes have been
followed.

     13.  REQUESTS FOR ASSISTANCE OR ADDITIONAL COPIES. Requests for assistance
or for additional copies of the prospectus or this letter of transmittal may be
directed to the Exchange Agent at the address or telephone
                                        12


number set forth on the cover page of this letter of transmittal. Holders may
also contact their broker, dealer, commercial bank, trust company or other
nominee for assistance concerning the Exchange Offer.

     14.  WITHDRAWAL. Tenders may be withdrawn only pursuant to the limited
withdrawal rights set forth in the prospectus under the caption "The Exchange
Offer -- Withdrawal of Tenders."

     IMPORTANT: THIS LETTER OF TRANSMITTAL OR A MANUALLY SIGNED FACSIMILE HEREOF
OR AN AGENT'S MESSAGE IN LIEU HEREOF (TOGETHER WITH THE ORIGINAL NOTES DELIVERED
BY BOOK-ENTRY TRANSFER OR IN ORIGINAL HARD COPY FORM) MUST BE RECEIVED BY THE
EXCHANGE AGENT, OR THE NOTICE OF GUARANTEED DELIVERY MUST BE RECEIVED BY THE
EXCHANGE AGENT, PRIOR TO THE EXPIRATION DATE.

                                        13


            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9

     GUIDELINES FOR DETERMINING THE PROPER IDENTIFICATION NUMBER TO GIVE THE
PAYER. Social Security numbers ("SSN") have nine digits separated by two
hyphens: i.e., 000-00-0000. Employer identification numbers ("EIN") have nine
digits separated by only one hyphen: i.e., 00-0000000. The table below will help
determine the number to give the payer.

<Table>
<Caption>
- ---------------------------------------------------------------
FOR THIS TYPE OF ACCOUNT:          GIVE THE NAME AND SSN OF:
- ---------------------------------------------------------------
                             
1.   Individual                    The individual0
2.   Two or more individuals       The actual owner of the
     (joint account)               account or, if combined
                                   funds, the first individual
                                   on the account(1)
3.   Custodian account of a minor  The minor(2)
     (Uniform Gift to Minors Act)
4.   a. The usual revocable        The grantor-trustee(1)
     savings trust account
        (grantor is also trustee)
     b. So-called trust account    The actual owner(1)
     that is not a legal or valid
        trust under State law
5.   Sole proprietorship or        The owner(3)
     single-owner LLC

- ---------------------------------------------------------------
</Table>

<Table>
<Caption>
 -------------------------------------------------------------------------------
FOR THIS TYPE OF ACCOUNT:                      GIVE THE NAME AND EIN OF:
 -------------------------------------------------------------------------------
                                         
    6.     Sole proprietorship or single-      The owner(3)
           owner LLC
    7.     A valid trust, estate, or pension   Legal entity(4)
           trust
    8.     Corporate or LLC electing           The corporation
           corporate status on Form 8832
    9.     Association, club, religious,       The organization
           charitable, educational, or other
           tax exempt organization
   10.     Partnership or multi-member LLC     The partnership
   11.     A broker or registered nominee      The broker or nominee
   12.     Account with the Department of      The public entity
           Agriculture in the name of a
           public entity (such as a State or
           local government, school district
           or prison) that receives
           agricultural program payments
- ---------------------------------------------------------------------------------
</Table>

(1) List first and circle the name of the person whose number you furnish. If
    only one person on a joint account has an SSN, that person's number must be
    furnished.
(2) Circle the minor's name and furnish the minor's SSN.
(3) You must show your individual name, but you may also enter your business or
    "doing-business-as" name. You may use either you SSN or EIN (if you have
    one).
(4) List first and circle the name of the legal trust, estate, or pension trust.
    (Do not furnish the identifying number of the personal representative or
    trustee unless the legal entity itself is not designated in the account
    title.)
NOTE:  If no name is circled when more than one name is listed, the number will
be considered to be that of the first name listed.

                                        14


            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                        NUMBER ON SUBSTITUTION FORM W-9

OBTAINING A NUMBER

If you don't have a taxpayer identification number or you don't know your
number, obtain Form SS-5, Application for a Social Security Number Card, or Form
SS-4, Application for Employer Identification Number, at the local office of the
Social Security Administration or the Internal Revenue Service and apply for a
number.

Payees specifically exempted from backup withholding on ALL payments include the
following:

  - A corporation.

  - A financial institution.

  - An organization exempt from tax under section 501(a), or an individual
    retirement plan.

  - The United States or any agency or instrumentality thereof.

  - A State, the District of Columbia, a possession of the United States, or any
    subdivision or instrumentality thereof.

  - A foreign government, a political subdivision of a foreign government, or
    any agency or instrumentality thereof.

  - An international organization or any agency, or instrumentality thereof.

  - A registered dealer in securities or commodities registered in the U.S. or a
    possession of the U.S.

  - A real estate investment trust.

  - A common trust fund operated by a bank under section 584(a).

  - An exempt charitable remainder trust, or a non-exempt trust described in
    section 4947(a)(1).

  - An entity registered at all times under the Investment Company Act of 1940.

  - A foreign central bank of issue.

Payments of dividends and patronage dividends not generally subject to backup
withholding include the following:

  - Payments to nonresident aliens subject to withholding under section 1441.

  - Payments to partnership not engaged in a trade or business in the U.S. and
    which have at least one nonresident partner.

  - Payments of patronage dividends where the amount received is not paid in
    money.

  - Payments made by certain foreign organizations.

  - Payments made to a nominee.

Payments of interest not generally subject to backup withholding include the
following:

  - Payments of interest on obligations issued by individuals.

NOTE:  You may be subject to backup withholding if this interest is $600 or more
and is paid in the course of the payer's trade or business and you have not
provided your correct taxpayer identification number to the payer.

  - Payments of tax-exempt interest (including exempt-interest dividends under
    section 852).

  - Payments described in section 6049(b)(5) to nonresident aliens.

  - Payments on tax-free covenant bonds under section 1451.

  - Payments made by certain foreign organizations.

  - Payments made to a nominee.

Exempt payees described above should file Form W-9 to avoid possible erroneous
backup withholding. FILE THIS FORM WITH THE PAYER, FURNISH YOUR TAXPAYER
IDENTIFICATION NUMBER, WRITE "EXEMPT" ON THE FACE OF THE FORM, AND RETURN IT TO
THE PAYER. IF THE PAYMENTS ARE INTEREST, DIVIDENDS, OR PATRONAGE DIVIDENDS, ALSO
SIGN AND DATE THE FORM.

Certain payments other than interest, dividends, and patronage dividends that
are not subject to information reporting are also not subject to backup
withholding. For details, see the regulations under sections 6041, 6041A(a),
6045, and 6050A.

PRIVACY ACT NOTICE. -- Section 6109 requires most recipients of dividend,
interest, or other payments to give taxpayer identification numbers to payers
who must report the payments to IRS. The IRS uses the numbers for identification
purposes. Payers must be given the numbers whether or not recipients are
required to file tax returns. Payers must generally withhold 28% of taxable
interest, dividend, and certain other payments to a payee who does not furnish a
taxpayer identification number to a payer. Certain penalties may also apply.

PENALTIES

(1) PENALTY FOR FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER.  If you fail
to furnish your taxpayer identification number to a payer, you are subject to a
penalty of $50 for each such failure unless your failure is due to reasonable
cause and not to willful neglect.

(2) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDING.  If you
make a false statement with no reasonable basis which results in no imposition
of backup withholding, you are subject to a penalty of $500.

(3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION.  Falsifying certifications or
affirmations may subject you to criminal penalties including fines and/or
imprisonment.

  FOR ADDITIONAL INFORMATION CONTACT YOUR TAX ADVISOR OR THE INTERNAL REVENUE
                                    SERVICE

                                        15


                              SUBSTITUTE FORM W-9
                  TO BE COMPLETED BY ALL TENDERING NOTEHOLDERS
                              (SEE INSTRUCTION 5)
  Sign this Substitute Form W-9 in Addition to the Signature(s) Required Above
                      PAYER'S NAME: AMKOR TECHNOLOGY, INC.

<Table>
<Caption>
- ------------------------------------------------------------------------------------------------------------------
                                                                     
NAME:
- ------------------------------------------------------------------------------------------------------------------
ADDRESS:
- ------------------------------------------------------------------------------------------------------------------
SUBSTITUTE                  Part I -- Please provide your Taxpayer
  FORM W-9                  Identification Number in the box to the right  ---------------------------------------
                            and certify by signing and dating below.       SOCIAL SECURITY NUMBER
                                                                           ---------------------------------------
                                                                           EMPLOYER IDENTIFICATION NUMBER
                            --------------------------------------------------------------------------------------
DEPARTMENT OF THE TREASURY  Part II -- Certification. Under penalties of perjury, I certify that:
  INTERNAL REVENUE SERVICE
                            (1) The number shown on this form is my correct Taxpayer Identification Number (or I
  PAYER'S REQUEST FOR           am waiting for a number to be issued to me), and
  TAXPAYER
  IDENTIFICATION NUMBER     (2) I am not subject to backup withholding because: (a) I am exempt from backup
  (TIN)                         withholding, or (b) I have not been notified by the Internal Revenue Service (the
                                "IRS") that I am subject to backup withholding as a result of failure to report
                                all interest or dividends, or (c) the IRS has notified me that I am no longer
                                subject to backup withholding, and
                            (3) I am a U.S. person (including a U.S. resident alien).
                            Part III -- Awaiting TIN  [ ]

                            Part IV -- Exempt  [ ]

- ------------------------------------------------------------------------------------------------------------------
CERTIFICATION INSTRUCTIONS.  You must cross out item (2) in Part 2 above if you have been notified by the IRS that
you are subject to backup withholding because of underreporting interest or dividends on your tax return. However,
if after being notified by the IRS that you were subject to backup withholding you received another notification
from the IRS that you were no longer subject to backup withholding, do not cross out item (2). If you are exempt
from backup withholding, check the box in Part 4 above.

Signature:  ------------------------------------------                                  Date: --------------------
- ------------------------------------------------------------------------------------------------------------------
                  YOU MUST COMPLETE THE FOLLOWING CERTIFICATE
          IF YOU CHECKED THE BOX IN PART 3 OF THE SUBSTITUTE FORM W-9
- ------------------------------------------------------------------------------------------------------------------
             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
    I certify under penalty of perjury that a taxpayer identification number has not been issued to me, and either
  (a) I have mailed or delivered an application to receive a taxpayer identification number to the appropriate
  Internal Revenue Service Center or Social Security Administration Office, or (b) I intend to mail or deliver an
  application in the near future. I understand that, if I do not provide a taxpayer identification number to the
  Paying Agent, 28% of all reportable payments made to me will be withheld, but will be refunded if I provide a
  certified taxpayer identification number within 60 days.

Signature:  ------------------------------------------                                  Date: --------------------
- ------------------------------------------------------------------------------------------------------------------
</Table>

NOTE:  NOTE: IF YOU ARE A U.S. SHAREHOLDER, FAILURE TO COMPLETE AND RETURN THIS
       FORM MAY RESULT IN BACKUP WITHHOLDING OF 28% OF ANY PAYMENTS MADE TO YOU
       PURSUANT TO THE OFFER. FOR ADDITIONAL DETAILS, PLEASE REVIEW THE ENCLOSED
       GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION NUMBER ON
       SUBSTITUTE FORM W-9.

                                        16