GST TELECOMMUNICATIONS INC
8-K, 1997-10-08
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549

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

                                    FORM 8-K

                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(D) OF THE

                         SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): SEPTEMBER 30, 1997
                                                  ------------------
                          GST Telecommunications, Inc.
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

        Canada                     1-12866             N/A
- --------------------------------------------------------------------------------
(State or other jurisdiction    (Commission       (IRS Employer
   of incorporation)            File Number)   Identification No.)

               4317 N.E. Thurston Way, Vancouver, Washington 98662
- --------------------------------------------------------------------------------
     (Address of principal executive offices)        (Zip Code)

Registrant's telephone number, including area code: (360) 254-4700

                                       N/A
- --------------------------------------------------------------------------------
          (Former name or former address, if changed since last report)


<PAGE>

ITEM 5.        OTHER EVENTS.

         On September 30, 1997, GST Telecom Hawaii,  Inc. ("GTHI"),  an indirect
wholly-owned  subsidiary of the Registrant,  entered into a Credit Agreement and
related  documentation with TM Communications  Hawaii LLC, an affiliate of Tomen
Corporation   ("Tomen")  providing  for  a  loan  in  the  aggregate  amount  of
$40,563,000 for development and construction of GTHI's Hawaiian Island submarine
fiber optic network and various other terrestrial  installations.  In connection
with the financing,  which was provided under an existing facility, Tomen and an
affiliate  purchased an aggregate of 130,828 of the Registrant's  common shares,
without  par value  ("Common  Shares")  and  acquired  Warrants  to  purchase an
aggregate  of an  additional  75,000  Common  Shares  for a  purchase  price  of
$1,375,000.  The fully operational inter-island submarine system is the first to
connect six of the major Hawaiian Islands. The terrestrial installations,  which
are in progress,  include a fiber optic backbone across the island of Hawaii,  a
cable plant on Maui and three fiber optic rings on Oahu.


                                       -2-


<PAGE>

ITEM 7.        FINANCIAL  STATEMENTS,   PRO  FORMA  FINANCIAL  INFORMATION  AND
                EXHIBITS

        (c)    Exhibits.

        99.1   Credit  Agreement  dated as of September  30, 1997 by and between
               GST Telecom Hawaii, Inc. and TM Communications Hawaii LLC.

        99.2   Service  Agreement  dated as of September 30, 1997 by and between
               Pacwest Network, Inc. and GST Telecom Hawaii, Inc.

        99.3   Management  Agreement  dated  as of  September  30,  1997  by and
               between Pacwest Network, Inc. and GST Telecom Hawaii, Inc.

        99.4   Agreement dated as of September 30, 1997 by and among GST Telecom
               Hawaii, Inc., GST Telecom Inc. and Pacwest Network, Inc.


                                       -3-


<PAGE>
                                    SIGNATURE

               Pursuant to the  requirements  of the Securities  Exchange Act of
1934,  the  Registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.

                                            GST TELECOMMUNICATIONS, INC.

Dated: October 7, 1997                      By:    /S/ CLIFFORD V. SANDER
                                                   ----------------------
                                                   Clifford V. Sander
                                                   Senior Vice President and
                                                   Treasurer


                                       -4-


                                   $40,563,000

                                CREDIT AGREEMENT

                         DATED AS OF SEPTEMBER 30, 1997

                            GST TELECOM HAWAII, INC.

                                   (BORROWER)

                                       AND

                          TM COMMUNICATIONS HAWAII LLC

                                    (LENDER)

THIS IS NOT A CONTRACT, OR AN OFFER FOR A CONTRACT;  NOR DOES IT ACCEPT AN OFFER
FOR A CONTRACT OR MEMORIALIZE ANY AGREEMENT  BETWEEN THE PARTIES.  NO AGREEMENT,
ORAL OR WRITTEN,  REGARDING  OR  RELATING TO ANY OF THE MATTERS  COVERED BY THIS
DRAFT HAS BEEN ENTERED INTO BETWEEN THE PARTIES.  THIS DOCUMENT,  IN ITS PRESENT
FORM OR AS IT MAY BE  HEREAFTER  REVISED  BY ANY  PARTY,  WILL  NOT  BECOME  THE
AGREEMENT OF THE PARTIES UNTIL, WITH ALL EXHIBITS AND SCHEDULES ATTACHED, IT HAS
BEEN SIGNED BY ALL PARTIES AND THE COMPLETE SIGNED COPIES HAVE BEEN EXCHANGED.

THE EFFECT OF THIS LEGEND MAY NOT BE CHANGED BY ANY ACTION OF THE PARTIES.



<PAGE>

                                TABLE OF CONTENTS

                                                                       PAGE

ARTICLE 1 - DEFINITIONS.................................................  1
        1.1.  Definitions...............................................  1
        1.2.  Rules of Interpretation...................................  1

ARTICLE 2 - THE CREDIT FACILITIES.......................................  2
        2.1.  Loan Facilities...........................................  2
        2.2.  Total Commitments.........................................  7
        2.3.  Upfront Fee.  ............................................  7
        2.4.  Other Payment Terms.......................................  7
        2.5.  Change of Circumstances...................................  8
        2.6.  Funding Loss Indemnification..............................  8
        2.7.  Security..................................................  9

ARTICLE 3 - CONDITIONS PRECEDENT........................................  9
        3.1.  Conditions Precedent to Closing...........................  9
        3.2.  Conditions Precedent to Each Construction Loan............ 16
        3.3.  No Approval of Work; Adjustments to Project Budget........ 19
        3.4.  Waiver of Funding; Adjustment of Drawdown Requests........ 19
        3.5.  Expenses in Excess of Project Budget...................... 19
        3.6.  Conditions Precedent to Term Loan Conversion.............. 19

ARTICLE 4 - REPRESENTATIONS AND WARRANTIES.............................. 20
        4.1.  Organization.............................................. 20
        4.2.  Authorization; No Conflict................................ 20
        4.3.  Enforceability............................................ 21
        4.4.  ERISA..................................................... 21
        4.5.  Taxes..................................................... 21
        4.6.  Business, Debt, Contracts, Etc............................ 21
        4.7.  Filings................................................... 21
        4.8.  Governmental Regulation................................... 21
        4.9.  Financial Statements...................................... 22
        4.10. Partnerships and Joint Ventures........................... 22
        4.11. No Default................................................ 22
        4.12. Possession of Franchises, Licenses, Etc................... 23
        4.13. Permits................................................... 23
        4.14. Offices, Location of Collateral........................... 23
        4.15. Adverse Change............................................ 24
        4.16. Project Documents......................................... 24
        4.17. Hazardous Substances...................................... 24
        4.18. Transfer of Contracts and Other Rights.................... 24
        4.19. Litigation................................................ 25
        4.20. Title, Liens and Easements................................ 25

                                           i


<PAGE>


                                                                       PAGE
                                                                       ----

        4.21. Utilities................................................. 26
        4.22. Sufficiency of Project Documents.......................... 26
        4.23. Securities................................................ 26
        4.24. Disclosure................................................ 26
        4.25. Construction Budget; Projections.......................... 27
        4.26. Intellectual Property..................................... 27

ARTICLE 5 - COVENANTS OF THE BORROWER................................... 27
        5.1.  Notices................................................... 27
        5.2.  Financial Statements, Reports, Etc........................ 28
        5.3.  Existence, Conduct of Business, Properties, Etc........... 29
        5.4.  Obligations............................................... 29
        5.5.  Damage and Cancellation Payments.......................... 29
        5.6.  Books, Records, Access.................................... 29
        5.7.  Operation of Project and Annual Budget.................... 30
        5.8.  Completion................................................ 31
        5.9.  Preservation of Rights; Further Assurances................ 31
        5.10. Construction of Project................................... 31
        5.11. Taxes, Other Government Charges and Utility Charges....... 32
        5.12. Compliance with Laws, Instruments, Etc.................... 32
        5.13. Warranty of Title......................................... 32
        5.14. Maintenance of Insurance.................................. 32
        5.15. Event of Eminent Domain................................... 33
        5.16. Indemnification........................................... 34
        5.17. Development Company Net Cash Flow Agreements.............. 35
        5.18. Consents to Assignment.................................... 35

ARTICLE 6 - NEGATIVE COVENANTS.......................................... 35
        6.1.  Contingent Liabilities.................................... 36
        6.2.  Limitations on Liens...................................... 36
        6.3.  Indebtedness.............................................. 36
        6.4.  Sale or Lease of Assets................................... 36
        6.5.  Changes................................................... 36
        6.6.  Dividends, Redemptions, Etc............................... 36
        6.7.  Investments............................................... 36
        6.8.  Transactions With Affiliates.............................. 37
        6.9.  Loan Proceeds; Project Revenues........................... 37
        6.10. Partnerships.............................................. 37
        6.11. Dissolution............................................... 37
        6.12. Amendments; Change Orders; Completion..................... 37
        6.13. Name and Location; Fiscal Year............................ 37
        6.14. Assignment................................................ 37
        6.15. Transfer of Ownership Interests........................... 37
        6.16. Abandonment of Project.................................... 38
        6.17. Hazardous Substance....................................... 38

                                       ii


<PAGE>

                                                                       PAGE
                                                                       ----

        6.18. ERISA..................................................... 38

ARTICLE 7 - APPLICATION OF FUNDS........................................ 38
        7.1.  Receipts Account and Operating Account.................... 38
        7.2.  Application Of Insurance Proceeds......................... 40
        7.3.  Application of Eminent Domain Proceeds.................... 42
        7.4.  Security Interest in Proceeds and Accounts................ 44
        7.5.  Permitted Investments..................................... 45

ARTICLE 8 - EVENTS OF DEFAULT; REMEDIES................................. 45
        8.1.  Events of Default......................................... 45
        8.2.  Remedies.................................................. 49

ARTICLE 9 - ASSIGNMENTS, ETC............................................ 50
        9.1.  Assignments............................................... 50
        9.2.  Confidentiality.  ........................................ 51
        9.3.  Securities Laws........................................... 51

ARTICLE 10 - MISCELLANEOUS.............................................. 51
        10.1.  Notices.................................................. 51
        10.2.  Additional Security; Right to Set-Off.................... 52
        10.3.  Delay and Waiver......................................... 52
        10.4.  Costs, Expenses and Attorneys' Fees...................... 53
        10.5.  Attorney-In-Fact......................................... 53
        10.6.  Entire Agreement; Amendments and Modifications........... 54
        10.7.  Governing Law............................................ 54
        10.8.  Severability............................................. 54
        10.9.  Headings................................................. 54
        10.10. Accounting Terms......................................... 54
        10.11. No Partnership; Etc...................................... 54
        10.12. Limitation on Liability.................................. 55
        10.13. Waiver of Jury Trial..................................... 55
        10.14. Consent to Jurisdiction.................................. 55
        10.15. Usury.................................................... 56
        10.16. Successors and Assigns................................... 56
        10.17. Counterparts............................................. 56

                                       iii


<PAGE>

EXHIBITS
- --------

Exhibit A      ---   Definitions
Exhibit B      ---   Form of Note

Exhibit C-1    ---   Form of Notice of Borrowing
Exhibit C-2    ---   Form of Drawdown Certificate
Exhibit D      ---   Form of Notice of Term Loan Conversion
Exhibit E      ---   Form of Notice of Interest Rate Conversion
Exhibit F      ---   Form of Refinancing Notice
Exhibit G      ---   Form of Security Agreement
Exhibit H      ---   Form of GST Security Agreement
Exhibit I      ---   Form of Construction Deed of Trust
Exhibit J      ---   Form of Pledge Agreement
Exhibit K-1    ---   Form of Guaranty and Net Cash Flow Pledge Agreement
Exhibit K-2    ---   Form of Guaranty and Net Cash Flow Deposit Account Pledge
                     Agreement
Exhibit L      ---   Form of Lessor's Estoppel and Consent
Exhibit M-1    ---   Form of Consent to Assignment of Agreement - Non-Utility
Exhibit M-2    ---   Form of Consent to Assignment of Agreement - Utilities
Exhibit M-3    ---   Form of Consent to Assignment of Agreement - GST Services
                     Agreement
Exhibit N-1    ---   Form of Opinion of Olshan Grundman Frome & Rosenzweig, LLP
Exhibit N-2    ---   Form of Opinion of Borrower's Hawaii Counsel
Exhibit N-3    ---   Form of Opinion of Borrower's FCC Counsel
Exhbiit N-4    ---   Form of Opinion of Borrower's Hawaii PUC Counsel
Exhibit O      ---   Form of Borrower's Closing Certificate
Exhibit P      ---   Form of Monthly Report
Exhibit Q      ---   Form of Assignment Agreement

SCHEDULES
- ---------

Schedule 1     ---   Description of Project
Schedule 2     ---   Applicable Easements
Schedule 3     ---   Applicable Permits
Schedule 4     ---   Security Filings
Schedule 5     ---   Adverse Changes
Schedule 6     ---   Required Insurance


                                       iv


<PAGE>

                                CREDIT AGREEMENT

               This CREDIT  AGREEMENT (this  "AGREEMENT")  dated as of September
30, 1997 is entered into by and between:

               (1)    GST   Telecom   Hawaii,   Inc.,   a   Hawaii   corporation
                      ("BORROWER"); and

               (2)    TM  Communications   LLC,  a  Delaware  limited  liability
                      company. ("LENDER").

                                    RECITALS

        A.  Borrower  was formed to develop  and operate an  alternative  access
network  telecommunications project in and among the Hawaiian Islands as further
described in SCHEDULE 1 (the  "PROJECT").  Pursuant to a Master  Agreement dated
October 24, 1994 among Pacific  Lightwave,  Inc., a Washington  corporation (now
known as "GST Pacific Lightwave,  Inc."),  Greenstar  Telecommunications Inc., a
Canadian corporation (now known as "GST Telecommunications,  Inc.") ("GSI"), GST
Telecom Inc., a Delaware corporation ("GST"),  Pacwest Network L.L.C., an Oregon
limited  liability  company  ("PACWEST"),   and  Tomen  America,   Inc.  ("TOMEN
AMERICA"), as amended (the "MASTER AGREEMENT"), Tomen America agreed to provide,
or to cause its affiliates to provide,  certain credit facilities to Borrower to
finance certain construction costs of Borrower.

        B. Borrower wishes to develop and operate the Project.

        C. Lender,  an affiliate of Tomen America,  is willing to provide credit
facilities  for the  Project  upon the terms and subject to the  conditions  set
forth herein.

           In  consideration  of the  agreements  herein and in the other Credit
Documents  and in reliance upon the  representations  and  warranties  set forth
herein and therein, the parties agree as follows:

                             ARTICLE 1 - DEFINITIONS

        1.1.  DEFINITIONS.  Except  as  otherwise  expressly  provided  in  this
Agreement or any other Credit Document, capitalized terms used in this Agreement
and its Exhibits  shall have the meanings given in EXHIBIT A or in the provision
of this Agreement or other Credit Document referenced in EXHIBIT A.

        1.2. RULES OF INTERPRETATION.  Except as otherwise  expressly  provided,
the rules of interpretation set forth in EXHIBIT A shall apply to this Agreement
and the other Credit Documents.


<PAGE>

                        ARTICLE 2 - THE CREDIT FACILITIES

        2.1.  LOAN FACILITIES.

              (a) CONSTRUCTION LOAN FACILITY.

                  (i)  AVAILABILITY.  Subject  to the terms and  conditions  set
forth in this Agreement,  Lender agrees to advance to Borrower from time to time
during the  Construction  Loan  Availability  Period such loans as Borrower  may
request  under this SECTION  2.1(A)  (individually,  a  "CONSTRUCTION  LOAN" and
collectively the "CONSTRUCTION  LOANS"), in an aggregate principal amount not to
exceed the Total Construction Loan Commitment.

                  (ii) NOTICE OF BORROWING.  Borrower shall request Construction
Loans by  delivering  to Lender  an  irrevocable  written  notice in the form of
EXHIBIT C-1, appropriately completed (a "NOTICE OF BORROWING"), which specifies,
among other things:

                       (A) The amount of the requested  Construction Loan, which
shall be in the minimum amount of Two Hundred Fifty Thousand Dollars ($250,000);
and

                       (B) The date of the requested  Construction  Loan,  which
shall be a Business Day and which shall comply with SECTION 3.2(A)(I).

Borrower shall give each Notice of Borrowing,  accompanied with an appropriately
completed  Drawdown  Certificate  in the form of EXHIBIT C-2, to Lender at least
three (3) Business Days before the date of any Construction  Loan, in the manner
set forth in SECTION 10.01.

                      (iii) USE OF PROCEEDS.  Borrower shall use the proceeds of
each Construction Loan solely to pay Project Costs.

               (b)    TERM LOAN FACILITY.

                      (i)  CONVERSION.  Subject to the terms and  conditions set
forth in this Agreement,  Lender agrees to convert the outstanding  Construction
Loans,  at the  request of  Borrower,  to term loans under this  SECTION  2.1(B)
(each, a "TERM LOAN") in an aggregate  principal  amount not to exceed the Total
Term Loan Commitment.

                      (ii) NOTICE OF TERM  CONVERSION.  Borrower shall request a
Term  Conversion by delivering to Lender an  irrevocable  written  notice in the
form of EXHIBIT D,  appropriately  completed (the "NOTICE OF TERM  CONVERSION"),
which specifies,  among other things, the requested date of the Term Conversion,
which shall be the Construction Loan Maturity Date and a Business Day.

Borrower  shall give the Notice of Term  Conversion to Lender at least three (3)
Business  Days before the date of the requested  conversion.  The Notice of Term
Conversion  shall be delivered by first-class  mail or telecopy to Lender at the
office or to the telecopy number and during the hours specified in SECTION 10.1;
PROVIDED, HOWEVER, that Borrower shall promptly

                                        2


<PAGE>

deliver  to Lender  the  original  of any  Notice of Term  Conversion  initially
delivered by telecopy.

               (c) INTEREST. Borrower shall pay interest on the unpaid principal
amount of the Loan  Facility with respect to the Project on the dates and at the
times specified  herein from and including the Closing Date to but excluding the
Maturity  Date,  at a rate per annum  equal to the LIBOR  Rate PLUS 3.00% at all
times until such time after the Term  Conversion  as the Term Loan interest rate
may be  converted  to a fixed  interest  rate  pursuant  to  SECTION  2.1(D) and
thereafter at a rate per annum equal to the Fixed Rate; PROVIDED HOWEVER, to the
extent that  Borrower has not obtained the  below-listed  Project  Documents and
Consents to the  assignment of the Project  Documents to Lender in the forms set
forth as EXHIBIT M, on or before  ninety (90) days from the date hereof,  Lender
has the right, at its sole and absolute option, to increase the interest rate on
the portion of the Loan  Facility  then in effect by one percent (1%) until such
time as all such consents to assignment shall have been received by Lender:

                      (i)  Agreement  by and  between the County of Maui and the
Borrower with respect to Kihei Regional Park Easement;

                      (ii)  Easement  for the  property  subject to the Right of
Entry granted by  [______________  ] to Borrower,  being a portion of Manele Bay
Boat Harbor, Island of Lana'i;

                      (iii)  Easement for the  property  subject to the Right of
Entry granted by the City and County of Honolulu to Borrower, being a portion of
Sandy Beach Park;

                      (iv)  Easement  for the  property  subject to the Right of
Entry granted by the City and County of Honolulu to Borrower, being a portion of
Makaha Beach Park;

                      (v) Consent with respect to the Amendment and  Restatement
of License  Agreement,  dated August 2, 1994, by and between the Trustees  under
the will and of the Estate of James Campbell, Deceased, and Borrower;

                      (vi) Consent with respect to the Indenture of Lease, dated
November ___________, 1996, by and between Ox Koko Marina, Inc., and Borrower;

                      (vii) Consent with respect to the Indenture of lease dated
August 15, 1997, by and between Mauna Kea Beach Hotel Corp. and Borrower;

                      (viii) Consent with respect to the License Agreement dated
as of June 26, 1997 between Pioneer Mill Company, Limited and Borrower;

                      (ix) Consent with respect to the  Sublease,  commencing on
2/1/96 between Bank of America, FSB and Borrower;

                      (x)  Easement  for the  property  subject  to the Right of
Entry granted by Wailea Resort Company, Ltd. to Borrower, being a portion of the
property covered by

                                        3


<PAGE>

Transfer  Certificate of Title No.  325,213 issued to Grantor,  and certain real
property known as Lot 23 and Lot B-3;

                      (xi) Consent with respect to the License Agreement,  dated
October 4, 1996, between Lanai Company, Inc. and Borrower; and

                      (xii)  Consent  with  respect  to  the  Conduit  Occupancy
Agreement, dated March 17, 1997, between Lanai Company Inc. and Borrower.

Borrower  may deliver to Lender  within  ninety (90) days from the date hereof a
written  explanation with respect to any of the above-listed  Project  Documents
and  Consents  to  the  assignment  of  the  Project   Documents  that  Borrower
anticipates it will not have obtained within such ninety (90) day period,  which
may include a  description  of possible  alternatives  to the  required  Project
Documents and/or Consents and any other information Borrower considers relevant.
Lender  agrees to  consider  any such  explanation  timely  provided by Borrower
before  exercising the right, in its sole and absolute  discretion,  to increase
the interest rate on the Loan  Facility  then in effect in accordance  with this
Section.

All  computations  of  interest  shall be based on a year of 360 days for actual
days elapsed.

               (d)  CONVERSION TO FIXED RATE.  Borrower may convert the interest
rate on the Term Loan from the LIBOR Rate to the Fixed Rate;  PROVIDED,  HOWEVER
that any such  conversion  shall  be made  on,  and only on,  the last day of an
Interest  Period.  Borrower  shall request such a conversion  by an  irrevocable
written  notice to Lender in the form of EXHIBIT E,  appropriately  completed (a
"NOTICE OF INTEREST RATE CONVERSION"),  which specifies, among other things, the
date of the requested conversion, which shall be a Business Day.

Borrower  shall give a Notice of  Interest  Rate  Conversion  to Lender at least
three (3) Business Days before the date of the requested conversion.  The Notice
of Interest Rate Conversion  shall be delivered by first-class  mail or telecopy
to Lender at the office or to the telecopy number and during the hours specified
in PARAGRAPH 10.1;  PROVIDED,  HOWEVER,  that Borrower shall promptly deliver to
Lender  the  original  of any  Notice  of  Interest  Rate  Conversion  initially
delivered by telecopy.

If Borrower is in compliance  with the  provisions of this  Agreement,  no later
than 2:00 p.m. on the date  specified in the Notice of Interest Rate  Conversion
Lender shall notify Borrower of the effectiveness of the conversion,  the amount
of the Fixed Rate and the Liquidation Costs incurred by Lender in effecting such
conversion.

               (e) SCHEDULED  PAYMENTS.  (i) Borrower  shall repay to Lender (A)
the principal amount of the Construction  Loans,  accrued interest on the unpaid
principal  amount of the  Construction  Loans and all outstanding fees and costs
payable to Lender with respect to the  Construction  Loans on the earlier of the
Construction  Loan  Maturity  Date and the Term  Conversion  Date,  and (B), the
principal   amount  of  the  Term  Loan  in  twenty-two   (22)  equal  quarterly
installments  payable  on the 1st day of each  third  month,  commencing  on the
earlier of the 1st day of the month  which is (y) one year and six months  after
the Term Conversion Date or (z) two years and six months after the Closing Date,
and ending five

                                        4


<PAGE>

years and six months thereafter;  PROVIDED,  HOWEVER, that the principal payment
due to Lender on each Maturity Date shall be in the amount  necessary to pay all
remaining unpaid principal on the relevant portion of the Loan Facility.

                      (ii)  Borrower  shall pay  accrued  interest on the unpaid
principal  amount  of the Loan  Facility  (A) on the  last day of each  Interest
Period,  PROVIDED  THAT,  in lieu of payments  on the last day of each  Interest
Period,  Borrower shall pay accrued interest from amounts  borrowed  pursuant to
Construction  Loans until the earlier of: (1) the Term  Conversion  Date and (2)
the date which is one year after the Closing Date; PROVIDED FURTHER, that to the
extent that net revenues from  operations  are generated  prior to the dates set
forth in the preceding  clauses (1) and (2),  Borrower shall  forthwith pay such
net revenues to Lender towards payment of accrued interest;  (B) upon prepayment
(to the  extent  thereof)  and  (C) at  maturity  (whether  by  acceleration  or
otherwise).

               (f) PROMISSORY NOTE. The obligation of Borrower to repay the Loan
Facility  and to pay  interest  thereon at the rates  provided  herein  shall be
evidenced by a promissory note of Borrower in substantially  the form of EXHIBIT
B (the "NOTE").

               (g)    FUNDING.

                      (i) NOTICE. Each Notice of Borrowing shall be delivered to
Lender in accordance with SECTION 2.1(A)(II).

                      (ii) DISBURSEMENT OF FUNDS. No later than 2:00 p.m. on the
Business Day specified in each Notice of Borrowing, if the applicable conditions
precedent  listed in ARTICLE 3 have been  satisfied,  Lender will make available
the Construction  Loan requested in such Notice of Borrowing (or so much thereof
as Lender shall have approved pursuant to this Agreement) in Dollars by check or
and in  immediately  available  funds,  in accordance  with the next  succeeding
sentence.  At  Lender's  option and upon notice to  Borrower,  the amount of any
Construction  Loan  may,  in whole or in part,  be (x)  disbursed  by  Lender to
Borrower  by check  or by wire  transfer  to the  Receipts  Account  established
pursuant  to  SECTION  7.1(A)  at  Bank  of  Hawaii,  Honolulu  Branch,  ABA No.
121-301-028, Account Number 01-094-521, in lawful money of the United States and
in immediately available funds for application in accordance with the applicable
Notice of Borrowing  and the  Drawdown  Certificate  or (y)  disbursed by Lender
directly  to the  Person(s)  entitled  thereto as  specified  in the  applicable
Drawdown  Certificate.  Upon the  application of funds in accordance with clause
(y) of the preceding sentence, Lender shall as promptly as practicable following
the  disbursement  of such  funds  provide an  accounting  of such  payments  to
Borrower.  Such payment shall discharge PRO TANTO the obligations of Lender with
respect  to such  amounts  and  Borrower  hereby  authorizes  Lender to pay such
amounts on its behalf.

               (h)    PREPAYMENTS.

                      (i) OPTIONAL  PREPAYMENTS.  At its option,  Borrower  may,
upon ten (10) Business  Days notice to Lender,  prepay the Loan Facility in part
in aggregate  principal  amounts of not less than Five Hundred  Thousand Dollars
($500,000) or an integral multiple

                                        5


<PAGE>

of One Hundred  Thousand  Dollars  ($100,000)  in excess  thereof,  or in whole,
subject to this SECTION 2.1(H).

                      (ii) MANDATORY PREPAYMENTS. Borrower shall prepay the Loan
Facility upon a Change of Control.

                      (iii) TERMS OF PREPAYMENTS.

                            (A)  Upon  the   prepayment  of  any  Loan  Facility
(whether such prepayment is an optional  prepayment under SECTION 2.1(H)(I) or a
mandatory prepayment required by the terms of this Agreement or the other Credit
Documents, including a prepayment upon acceleration), Borrower shall pay (1) all
accrued  interest to the date of such prepayment on the amount prepaid,  and (2)
all  Liquidation  Costs incurred by Lender as a result of such  prepayment.  All
prepayments  of a Loan  Facility  shall reduce the remaining  payments  required
under SECTION 2.1(E) in the inverse order of maturity. Borrower may not reborrow
the principal amount of any Construction Loan or Term Loan which is prepaid.

                            (B) If Borrower  proposes to refinance  the Project,
Borrower shall deliver a written notice of the proposed  refinancing in the form
of EXHIBIT F (a "REFINANCING  NOTICE") stating Borrower's bona fide intention to
refinance the Project,  together with a copy of the offer to finance,  including
without limitation,  the name and address of the proposed refinancer, the amount
of the Loan Facility to be  refinanced  and the interest rate and other terms of
the  proposed  refinancing.  Within  thirty (30) days of receipt of such Notice,
Lender  shall  have the first  right to  provide  the  proposed  refinancing  to
Borrower  upon  such  interest  rate,  terms  and  conditions  proposed  by such
refinancer as set forth in the Refinancing  Notice.  If the Lender elects not to
provide such refinancing,  Borrower may prepay the Loan Facility; PROVIDED THAT,
Borrower  refinances the Project at the interest rate and on the other terms and
conditions  offered by the proposed  refinancer as set forth in the  Refinancing
Notice provided to Lender.  At the time of any such  prepayment,  in addition to
any fees, costs or expenses  otherwise payable by Borrower  hereunder,  Borrower
shall have paid to Lender an  additional  amount  equal to  one-third of the net
present  value of the interest  rate savings,  if any, of the  refinancing  loan
compared  to the  Loan  Facility.  Net  present  value of the  interest  payable
hereunder and under the proposed  refinanced  loan shall be  calculated  for the
purposes of this Section by applying a discount  rate equal to the interest rate
set forth in the Refinancing Notice.

        2.2.  TOTAL COMMITMENTS.

               (a)  CONSTRUCTION  LOANS.  The aggregate  principal amount of all
Construction  Loans  made by the  Lender  shall not exceed  Forty  Million  Five
Hundred Sixty Three Thousand Dollars ($40,563,000) (the "TOTAL CONSTRUCTION LOAN
COMMITMENT").

               (b) TERM LOAN.  The aggregate  principal  amount of the Term Loan
outstanding  at any time shall not exceed Forty Million Five Hundred Sixty Three
Thousand Dollars ($40,563,000) (the "TOTAL TERM LOAN COMMITMENT").

                                        6

<PAGE>

        2.3. UPFRONT FEE.  Borrower shall pay $1,863,000 to Lender as an upfront
fee (the "Upfront Fee");  $615,000 of the Upfront Fee shall be paid on or before
the Closing Date,  and  $1,248,000 of the Upfront Fee shall be paid on or before
the date which is six months  after the Closing  Date.  The Upfront Fee shall be
paid to  reimburse  the  Lender for the  preliminary  work done by the Lender in
consideration of whether to make, and in preparing its analysis for, the loan to
Borrower made by the Lender hereunder.

        2.4.  OTHER PAYMENT TERMS.

              (a) PLACE AND  MANNER.  Borrower  shall make all  payments  due to
Lender hereunder by wire transfer to Tomen America's Account at Citibank,  N.A.,
ABA No.  021000089,  Account  No.  30753206,  or as the Lender  shall  otherwise
direct, in lawful money of the United States and in immediately  available funds
not later than 12:00 noon New York time on the due date.

              (b) LATE PAYMENTS.  If any amounts required to be paid by Borrower
under this  Agreement  or the other  Credit  Documents  (including  principal or
interest payable on the Loan Facility,  and any fees or other amounts  otherwise
payable to Lender) remain unpaid after such amounts are due,  Borrower shall pay
interest on the aggregate  outstanding balance of such amounts from the date due
until  those  amounts  are paid in full at a per annum rate equal to the Default
Rate.

              (c) APPLICATION OF PAYMENTS. Payments made under this Agreement or
the other Credit Documents shall first be applied to any fees, costs, charges or
expenses payable to Lender hereunder or under the other Credit  Documents,  next
to any accrued but unpaid interest, and then to outstanding principal in inverse
order of maturity.

        2.5.  CHANGE OF CIRCUMSTANCES.

              (a) INABILITY TO DETERMINE  RATES.  If, on or before the first day
of any Interest Period Lender shall have determined (which  determination  shall
be  conclusive  and binding on all parties  hereto) that the LIBOR Rate for such
Interest  Period  cannot be  adequately  and  reasonably  determined  due to the
unavailability of funds in or other circumstances affecting the London interbank
market,  Lender  shall  immediately  give notice of such  condition to Borrower.
After the giving of any such  notice and until  Lender  shall  otherwise  notify
Borrower that the  circumstances  giving rise to such condition no longer exist,
Borrower's  right to request  the making of, and  Lender's  obligations  to make
Loans at the LIBOR Rate shall be suspended. Borrower may, in compliance with the
other terms and conditions hereof,  request Alternate Interest Rate Construction
Loans  during any periods in which the LIBOR Rate is  suspended.  Any LIBOR Rate
Loan Facility  outstanding at the  commencement of any such suspension  shall be
converted  at the end of the then  current  Interest  Period  into an  Alternate
Interest Rate Loan unless such suspension has then ended.

              (b) ILLEGALITY. If, after the date of this Agreement, the adoption
of any Governmental Rule, any change in any Governmental Rule or the application
or requirements thereof (whether such change occurs in accordance with the terms
of such  Governmental  Rule as enacted,  as a result of amendment or otherwise),
any change in the interpretation or

                                        7


<PAGE>

administration  of any  Governmental  Rule  by any  Governmental  Authority,  or
compliance by Lender or Borrower  with any request or directive  (whether or not
having the force of law) of any Governmental Authority (a "CHANGE OF LAW") shall
make it unlawful or impossible  for Lender to make or maintain any  Construction
Loan or the Term Loan,  Lender shall promptly  notify Borrower of such Change of
Law. Upon receipt of such notice,  (i) Borrower's right to request the making of
Construction Loans shall be terminated,  and (ii) Borrower shall, at the request
of Lender,  immediately  repay the Loan  Facility  together with all accrued and
unpaid interest.

        2.6. FUNDING LOSS INDEMNIFICATION. If Borrower shall (a) repay or prepay
the Loan  Facility or any portion  thereof on any day other than the last day of
an Interest Period (whether a payment upon acceleration or otherwise),  (b) fail
to borrow in accordance with a Notice of Borrowing  delivered to Lender (whether
as a result of the failure to satisfy any  applicable  conditions or otherwise),
or (c) prepay the Term Loan or any portion  thereof  after the interest rate has
been converted to a Fixed Rate, Borrower shall, upon demand by Lender, reimburse
Lender for and hold  Lender  harmless  from all costs and losses,  expenses  and
liabilities  incurred  by Lender as a result of such  repayment,  prepayment  or
failure  (including  without limitation by reason of the liquidation of deposits
or other funds by Lender) ("LIQUIDATION COSTS").  Borrower understands that such
Liquidation  Costs may include  direct losses  incurred by Lender as a result of
funding and other contracts entered into by Lender.

        2.7.  SECURITY.

              (a) SECURITY  AGREEMENT,  PLEDGE, ETC. The Obligations of Borrower
to Lender shall be secured by the following:

                            (i) The Security  Agreement,  between  Borrower,  as
grantor,  and Lender,  in the form of EXHIBIT G, duly  executed by Borrower (the
"SECURITY AGREEMENT");

                            (ii) The GST  Security  Agreement,  between  GST, as
grantor,  and Lender,  in the form of EXHIBIT H, duly  executed by GST (the "GST
SECURITY AGREEMENT");

                            (iii)  Construction  Deeds  of  Trust in the form of
EXHIBIT I, duly executed;

                            (iv)  The  Pledge  Agreement,  of GST  as  the  sole
shareholder  of  Borrower,  in the form of EXHIBIT J, duly  executed by GST (the
"PLEDGE AGREEMENT");

                            (v) The Guaranty and Net Cash Flow Pledge  Agreement
of Borrower in the form of EXHIBIT K-1, duly executed by Borrower (the "NET CASH
FLOW AGREEMENT");

                            (vi) The Guaranty and Net Cash Flow Deposit  Account
Pledge  Agreement  of  Borrower  in the form of EXHIBIT  K-1,  duly  executed by
Borrower (the "NET CASH FLOW ACCOUNT PLEDGE AGREEMENT"); and

                                        8


<PAGE>

                            (vii)  Such   other   documents,   instruments   and
agreements as Lender may request in order to grant to Lender Liens in all assets
of  Borrower  (including,  without  limitation,  all  Permits),  the  shares  of
Borrower's capital securities and all other assets reasonably  necessary for the
operation and maintenance of the Project.

               (b) FURTHER ASSURANCES.  Borrower shall deliver to Lender each of
the foregoing and such other instruments, agreements, certificates, opinions and
documents  (including Uniform  Commercial Code financing  statements and fixture
filings and landlord  waivers) as Lender may  reasonably  request to perfect and
maintain  the Liens  granted  to Lender by the  foregoing  prior to the Liens or
other interests of any Person other than Lender.  Borrower shall fully cooperate
with Lender and perform all additional  acts  reasonably  requested by Lender to
effect the purposes of the foregoing.

                        ARTICLE 3 - CONDITIONS PRECEDENT

        3.1. CONDITIONS  PRECEDENT TO CLOSING.  The obligation of Lender to make
any  Construction  Loans  is  subject  to  the  satisfaction  of  the  following
conditions on or prior to the Closing Date (unless waived by Lender):

               (a) PRINCIPAL  CREDIT  DOCUMENTS.  Lender shall have received the
following  Credit  Documents,  each of which (i) shall be in form and  substance
satisfactory to Lender,  and (ii) shall have been duly authorized,  executed and
delivered by the parties thereto:

                      (A)    This Agreement;

                      (B)    The Note;

                      (C)    The Security Agreement;

                      (D)    The Account Security Agreement;

                      (E)    The GST Security Agreement;

                      (F)    The Pledge Agreement;

                      (G)    The Net Cash Flow Agreement;

                      (H)    The Net Cash Flow Account Pledge Agreement;

                      (I)    An agreement duly executed by Greenstar agreeing to
subordinate all payments due to Greenstar  pursuant to any management  agreement
or loan between  Borrower and Greenstar to the obligations of Borrower to Lender
under this Agreement,  the other Credit  Agreements and any net cash flow pledge
agreement entered into by Borrower pursuant to SECTION 5.17;

                                        9


<PAGE>

                      (J)    The  Construction  Deeds  of  Trust  in the form of
EXHIBIT I for Honolulu County, Kauai County and Maui County;

                      (K)    The  UCC-1   Financing   Statements  set  forth  on
SCHEDULE 4;

                      (L)    Intercreditor and Subordination  Agreements between
Lender and each Affiliate of Borrower which is a creditor of Borrower; and

                      (M)    A  certificate  of each Person  which has  assigned
Project  Documents  or other assets to Borrower  with  respect to such  Person's
solvency at the time of and immediately after such assignment.

               (b)  PROJECT  DOCUMENTS.  Lender  shall have  received  (i) true,
complete  and  correct  copies  of the  following  Project  Documents,  and  any
supplements  or  amendments  thereto,  each of  which  (A)  shall be in form and
substance satisfactory to Lender, (B) shall have been duly authorized,  executed
and delivered by the parties  thereto,  and (C) shall have been  certified by an
authorized  officer of Borrower as being true,  complete and correct and in full
force and effect,  and (ii)  evidence  satisfactory  to Lender that each Project
Document is in full force and effect and that no party to any  Project  Document
is or,  but for the  passage  of time or  giving  of  notice or both will be, in
breach of any  obligation  thereunder  which is  reasonably  expected  to have a
Material Adverse Effect:

                      (A)    The Construction Contracts;

                      (B)    The Pole and Conduit Use Agreements;

                      (C)    The CPCN;

                      (D)    The FCC License Agreements;

                      (E)    The Collocation Agreements;

                      (F)    The Interconnection Agreements;

                      (G)    The Leases;

                      (H)    The Easements;

                      (I)    The Permits; and

                      (J)    Each other  applicable  Project Document not listed
                             in   this   SECTION   3.1(B),   including   without
                             limitation,   each  equipment   purchase  agreement
                             referenced in Section 3(b) of the Master Agreement.

               (c) BORROWER DOCUMENTS.  Lender shall have received the following
items, each in form and substance satisfactory to Lender:

                                       10

<PAGE>

                      (i)  A  copy  of  one  or  more   resolutions   or   other
authorizations of Borrower,  certified by Borrower's  Secretary as being in full
force and effect on the Closing Date, authorizing the borrowings herein provided
for, the development of the Project and the execution,  delivery and performance
of this  Agreement  and the other  Operative  Documents and any  instruments  or
agreements required hereunder or thereunder to which Borrower is a party and the
consummation of the transactions contemplated thereby;

                      (ii) A certificate of Borrower  signed by the  appropriate
authorized  officer of  Borrower  and dated as of the  Closing  Date,  as to the
incumbency  of the Person or Persons  authorized  to execute  and  deliver  this
Agreement and the other  Operative  Documents and any  instruments or agreements
required  hereunder  or  thereunder  to be executed on the Closing Date to which
Borrower is a party;

                      (iii)  Copies of the  Articles  of  Incorporation  and any
Amendments to the Articles of Incorporation of Borrower, certified by the Hawaii
Department of Commerce and Consumer Affairs evidencing the merger of GST Pacwest
Telecom Hawaii, Incorporated with and into Borrower, and of copies of the Bylaws
of Borrower, certified by the Secretary of Borrower;

                      (iv)  Certificates  issued by the  director  of the Hawaii
Department of Commerce and Consumer  Affairs and state tax authorities as to the
good standing of Borrower, and the tax status of Borrower, respectively; and

                      (v)  The  Decision  and  Order  of  the  PUC  waiving  the
requirements of Sections  269-17 and 269-19 of the Hawaii Revised  Statutes with
respect to the transactions  contemplated by this Agreement and the other Credit
Documents.

               (d) SECURITY  FILINGS.  Lender shall have  received the following
items, each in form and substance satisfactory to Lender:

                      (i)    A UCC-3  (or  similar)  report  of a date  not less
recent than one (1) week before the Closing  Date for each of the  jurisdictions
in which the UCC-1 financing  statements and the fixture filings are intended to
be  filed in  respect  of the  Collateral,  showing  that  upon  due  filing  or
recordation  (assuming  such filing or recordation  occurred on such date),  the
security interests created under such Collateral  Documents will be prior to all
other financing statements,  fixture filings, deeds of trust, mortgages or other
security documents in respect of the Collateral;

                      (ii)   Evidence that all appropriate  financing statements
and fixture filings were filed and/or recorded as required  hereunder or by law;
and

                      (iii)  Stock   certificate(s)   representing  all  of  the
outstanding  capital stock of Borrower  together with stock powers duly endorsed
by Borrower's stockholder attached thereto.

                      (iv)   Evidence  that the Security  Agreement and the Cash
Collateral Agreement between Borrower and AT&T Submarine Systems, Inc. have been
terminated.

                                       11

<PAGE>

                      (iv)   A  duly   executed   and   delivered   copy  of  an
intercreditor and subordination agreement between NTFC and Lender.

               (e)  EASEMENTS.  Lender shall have received the following  items,
each in form and substance satisfactory to Lender:

                      (i)    A schedule  of  Applicable  Easements  required  to
construct and operate the Project,  which schedule shall be included in and made
a part  of  this  Agreement  as  SCHEDULE  2,  together  with  evidence  of each
Applicable  Easement  listed on Part I of such schedule and a certificate  of an
authorized  officer  of  Borrower  certifying  that  neither  Borrower  nor such
authorized officer has any reason to believe that all Applicable  Easements that
have not been  obtained  prior to the  Closing  Date will not be obtained by the
dates by which they are required; and

                      (ii)   Other   evidence   requested  by  Lender  that  (A)
Borrower has duly  obtained the  Applicable  Easements  set forth on SCHEDULE 2,
other than those set forth in Part II of such  schedule  which are not, in light
of the status of the acquisition, development, construction and operation of the
Project  as of the  Closing  Date,  required  to have been  obtained  as of such
Closing Date and which, in the reasonable opinion of Lender, can be obtained not
later than required without  substantial  difficulty,  expense or delay, and (B)
such  Applicable  Easements  are in full force and effect and not subject to any
condition,  limitation or other  provision  that in the  reasonable  judgment of
Lender or its counsel could have a Material Adverse Effect.

               (f)  CONSENTS  AND  ESTOPPELS.  Lender  shall have  received  the
following items, each in form and substance satisfactory to Lender:

                      (i) An  Estoppel  and Consent  Certificate  in the form of
EXHIBIT L from each lessor of real  property to Borrower  duly  executed by each
such Lessor and Borrower;

                      (ii)  Consents to  assignment  of all  material  licenses,
permits and agreements in the form attached hereto as EXHIBIT M-1, M-2 and M-3.

               (g) PERMIT,  REGULATORY AND ENVIRONMENTAL  MATTERS.  Lender shall
have received the following  items,  each in form and substance  satisfactory to
Lender:

                      (i) A schedule of Applicable Permits required to construct
and operate the Project, which schedules shall be included in and made a part of
this  Agreement as SCHEDULE 3,  together with copies of each  Applicable  Permit
listed on Part I of such schedule, and a certificate of an authorized officer of
Borrower  certifying that neither  Borrower nor such authorized  officer has any
reason to believe that all Applicable  Permits that have not been obtained prior
to the  applicable  Closing Date will not be obtained by the dates by which they
are required; and

                      (ii) Other evidence  requested by Lender that (A) Borrower
has duly obtained or been assigned the Applicable Permits for the Project, other
than those set forth in

                                       12


<PAGE>
Part  II of  such  schedule  which  are  not,  in  light  of the  status  of the
acquisition,  development,  construction  and operation of the Project as of the
Closing Date,  required to have been obtained or made as of the Closing Date and
which,  in the  reasonable  opinion of Lender,  can be  obtained  not later than
required  without  substantial  difficulty,  expense  or  delay,  and  (B)  such
Applicable  Permits  are in full force and effect and not subject to any appeal,
restriction,  condition,  limitation or other  provision  that in the reasonable
judgment of Lender or its counsel could have a Material Adverse Effect.

                      (iii)  A  certificate  of  Borrower,   that  all  Permits,
Easements,  Licenses,  Leases  and other  property  rights  necessary  have been
obtained and that such Permits,  Easements,  Licenses, Leases and other property
rights form a contiguous  and  uninterrupted  line  necessary  to construct  and
operate the Project.

                      (iv)   Evidence  that  Borrower  and  the  network  to  be
constructed  by the  Project  will not be  subject to  regulation  by the Hawaii
Public Utility Commission to an extent unacceptable to Lender in its discretion.

               (h) CAPITAL  CONTRIBUTION.  Lender shall have  received  evidence
that GST Telecom  Inc. has made a capital  contribution  to Borrower of Thirteen
Million Seven Hundred Fifty Thousand Dollars ($13,750,000).

               (i) THIRD PARTY REPORTS. Lender shall have received satisfactory
third-party appraisal, feasibility, engineering, environmental and accounting
reviews relating to the Project.

               (j) OPINIONS.  Lender shall have  received the opinions,  each in
form and substance satisfactory to Lender, of:

                      (i) Olshan Grundman Frome & Rosenzweig,  LLP,  counsel for
Borrower, in substantially the form of EXHIBIT N-1;

                      (ii) Alston, Hunt, Floyd & Ing, special Hawaii counsel for
Borrower, in substantially the form of EXHIBIT N-2; and

                      (iii)  Swidler & Berlin,  FCC  Counsel  for  Borrower,  in
substantially the form of EXHIBIT N-3; and

                      (iv) Hoshida & Bento, Hawaii PUC Counsel for Borrower,  in
substantially the form of EXHIBIT N-4.

               (k)  CERTIFICATE.   Lender  shall  have  received  evidence  that
Borrower  has  obtained and is  maintaining  in full force and effect  insurance
complying  with  SECTION  5.14  hereof and  SCHEDULE 6 hereto,  including  (A) a
certificate from Borrower's  insurance  broker(s),  dated as of the Closing Date
and identifying  underwriters,  type of insurance,  insurance  limits and policy
terms,  listing the  special  provisions  required as set forth in SECTION  5.14
hereof and SCHEDULE 6 hereto, describing the insurance obtained and stating that
such  insurance  is in full  force and  effect  and that all  premiums  then due
thereon have been

                                       13


<PAGE>

paid, and (B) certified  copies of all policies  evidencing such insurance (or a
binder,  commitment or certificates signed by the insurer or a broker authorized
to bind the insurer).

               (l)   FINANCIAL   STATEMENTS,   EXPENDITURES   TO  CLOSING  DATE,
PROJECTIONS,  ETC. Lender shall have received and approved the following  items,
each in form and substance satisfactory to Lender:

                      (i) The most recent annual financial  statements  (audited
if  available),  most  recent  quarterly  financial  statements  from  Borrower,
together with a certificate from the appropriate officer of such Person, stating
that  no  material  adverse  change  in the  consolidated  assets,  liabilities,
operations or financial  condition of such Person has occurred since the date of
the financial  statements provided to Lender, and pro forma financial statements
for Borrower giving effect to the Capital Contributions;

                      (ii) A budget for the Project (the  "PROJECT  BUDGET") for
all  anticipated  costs to be incurred in connection with the  construction  and
start-up  of  the  Project,  including  in  such  budget  all  construction  and
non-construction  costs,  and including all interest,  taxes and other  carrying
costs,  and such  other  information  as Lender  may  require,  together  with a
balanced  statement  of  sources  and  uses of  proceeds  (and any  other  funds
necessary  to complete  the  Project),  broken down as to separate  construction
phases in a manner satisfactory to Lender.

                      (iii) An accurate and complete  accounting of expenditures
of the Project as of the date five (5)  Business  Days before the Closing  Date,
certified by the Chief Financial Officer of Borrower.

                      (iv) Borrower  shall have  furnished  Lender the Base Case
Project  Projections of operating expenses and cash flow for the Project and the
Project Schedule for the Project and the Milestone Disbursement Schedule for the
Project; and

                      (v)  Evidence  that there has not  occurred  any  material
adverse  change in the Project  Budget,  Project  Schedule or Base Case  Project
Projections,  in the economics or feasibility of constructing  and/or  operating
the Project,  or in the financial  condition,  business or property of any Major
Project Participant, which will have a Material Adverse Effect.

               (m) CONSENTS.  Lender shall have received  executed copies of the
Consents,  each in form and substance satisfactory to Lender,  including without
limitation, consents to assignment of each of the Project Documents in the forms
of EXHIBIT M-1, M-2 and M-3 hereto.

               (n) DUE DILIGENCE.  Lender shall have approved the results of its
due diligence review in connection with the transactions contemplated hereby.

               (o) OTHER  MATTERS.  Lender  shall have  received  the  following
items, each in form and substance satisfactory to Lender:

                                       14

<PAGE>

                      (i) Such other  evidence as Lender may have requested that
all corporate and legal  proceedings  and all instruments in connection with the
transactions  contemplated  by this  Agreement  are  satisfactory  in  form  and
substance to Lender;

                      (ii)  All  approvals  of  Lender  and  Tomen   Corporation
(Lender's parent corporation);

                      (iii)  All   information  and  copies  of  all  documents,
including  records of  corporate  proceedings  and copies of any approval by any
Governmental  Authority  required  in  connection  with any  transaction  herein
contemplated, which Lender may reasonably have requested in connection herewith,
such documents where appropriate to be certified by proper corporate officers or
Governmental Authorities;

                      (iv)  Evidence  that  no  action,   suit,   proceeding  or
investigation  has been  instituted  or  threatened  by any Person,  nor has any
order,  judgment  or  decree  been  issued  or  proposed  to be  issued  by  any
Governmental Authority that could have a Material Adverse Effect;

                      (v) Evidence that all taxes,  fees and other costs payable
in  connection  with the  execution,  delivery,  recordation  and  filing of the
documents  and  instruments  referred  to in this  SECTION 3.1 have been paid in
full;

                      (vi) Evidence that Tomen or an Affiliate of Tomen has been
appointed and is serving as Procurement Agent for the Project;

                      (vii) Evidence that GUS is the sole  stockholder of GST as
of the Closing Date;

                      (viii) A certificate in substantially  the form of EXHIBIT
O hereto (the "BORROWER'S CLOSING  CERTIFICATE"),  dated as of the Closing Date,
signed by an authorized officer of Borrower; and

                      (ix)  Evidence  that  no  equipment  which  is part of the
Project is subject to the terms and conditions of the Indenture  dated as of May
13,  1997,  by and among GSI,  GUS, GST  Funding,  Inc. and United  States Trust
Company of New York, as Trustee.

        3.2.  CONDITIONS  PRECEDENT TO EACH CONSTRUCTION LOAN. The obligation of
Lender to make each Construction Loan (including the initial  Construction Loan)
is subject to the prior satisfaction of each of the following conditions (unless
waived by Lender).

               (a) THE REQUESTED  CONSTRUCTION  LOANS. Lender shall be satisfied
that the  following  are true and correct as of the date on which  Borrower  has
requested that such Construction Loan be made:

                      (i) No  other  Construction  Loan  has  been  made for the
Project during the two-week period preceding the date on which Borrower requests
that such Construction Loan be made;

                                       15
<PAGE>

                      (ii)  The  sum  of the  undrawn  Total  Construction  Loan
Commitment, plus the unexpended portion of any Borrower Equity, is not less than
the aggregate  unpaid amount required to attain  Completion,  in accordance with
all  Legal   Requirements,   the  Construction   Contracts  and  the  Plans  and
Specifications,  prior to the Expected Completion Date and to pay or provide for
all anticipated  non-construction  costs, all as set forth in the Project Budget
(including any revisions thereto) approved by Lender; and

                      (iii) The  amounts to be applied in  connection  with such
Construction  Loan will not cause the amount  for any line item with  respect to
such month in the  applicable  Project  Budget to exceed the amount set forth in
such  Project  Budget,  as such line items may be  adjusted in  accordance  with
SECTION 3.3(B).

               (b)  DRAWDOWN   PROCEDURES.   Lender  shall  have   received  the
following, each in form and substance satisfactory to Lender:

                      (i) The Notice of Borrowing  and the Drawdown  Certificate
within the time periods specified therein;

                      (ii)  Evidence  that  Borrower  has   established  and  is
maintaining the Receipts  Account and the Operating  Account at a bank in Hawaii
reasonably acceptable to Lender; and

                      (iii)  Evidence  that all work  that has been  done on the
Project shall have been done in a good and workmanlike  manner and in accordance
with the  Construction  Contracts  and  Prudent  Practices,  including,  but not
limited to, if requested by Lender, copies of all invoices for services rendered
and  materials  delivered  for the Project,  and there shall not have been filed
with or served upon  Borrower  with  respect to the Project or any part  thereof
notice of any Lien,  claim of Lien or  attachment  upon or claim  affecting  the
right to  receive  payment of any of the  moneys  payable to any of the  Persons
named on such request  which has not been released or which will not be released
with the payment of such obligation out of such  Construction  Loan,  other than
Permitted Liens.

               (c) LIENS.  Lender  shall  have  received  in form and  substance
satisfactory to Lender, if requested by Lender,  and subject to Borrower's right
to contest  liens as  described in the  definition  of  "Permitted  Liens," duly
executed   acknowledgments   of  payments   and  releases  of   mechanics'   and
materialmen's  liens, in form  satisfactory to Lender,  from the Contractors and
all other contractors,  subcontractors and materialmen,  for all work,  services
and materials,  including equipment and fixtures of all kinds, done,  previously
performed,  or furnished for the  construction  of the Project,  except for such
work,  services and  materials to be paid for with the proceeds of the requested
Construction Loan.

               (d) EASEMENTS.  Lender shall have received evidence,  in form and
substance  acceptable to Lender, that, except for Applicable Easements listed in
Part II of  SCHEDULE  2 which  are not  then  required  in  connection  with the
construction or operation of the Project,  all Applicable Easements with respect
to the  construction and operation of the Project required to have been obtained
by the date of such Construction  Loans shall be in full force and effect,  and,
with respect to any of the Applicable Easements not yet required, there

                                       16


<PAGE>

shall be no reason to believe  that any such  Applicable  Easements  will not be
obtained, all of which shall be satisfactory in all respects to Lender. Borrower
shall  inform  Lender  as to the  status of  Borrower's  efforts  to obtain  the
Applicable Easements not yet obtained.

               (e) PERMITS.  Lender shall have  received  evidence,  in form and
substance  acceptable to Lender,  that, except for Applicable  Permits listed in
Part II of  SCHEDULE  3 which  are not  then  required  in  connection  with the
construction or operation of the Project, all Applicable Permits with respect to
the  construction and operation of the Project required to have been obtained by
the date of such Construction  Loans from any Governmental  Authority shall have
been issued and shall be in full force and effect,  and,  with respect to any of
the  Applicable  Permits not yet  required,  there shall be no reason to believe
that any such  Applicable  Permits will not be  obtained,  all of which shall be
satisfactory in all respects to Lender.

               (f) OTHER  DOCUMENTS.  If requested by Lender,  Lender shall have
received evidence, in form and substance satisfactory to Lender, that:

                      (i) All of the  Operative  Documents  to be  executed  and
delivered  with  respect  to the  Project  on or  prior  to  the  date  of  such
Construction  Loan shall be in full force and effect without change or amendment
since the respective  dates of their  execution and delivery in a form which was
approved by Lender,  except as consented to in writing by Lender or as otherwise
permitted pursuant to SECTION 6.12; and

                      (ii) With  respect to  Additional  Project  Documents  and
Applicable  Permits entered into or obtained,  transferred or required  (whether
because  of the  status of the  construction  or  operation  of the  Project  or
otherwise) since the date of the most recent Construction Loan, there shall have
been a delivery or a  redelivery,  as the case may be, to Lender of such matters
as are described in SECTIONS 3.1(B), 3.1(E), 3.1(F) and 3.1(G) and, if requested
by Lender, any of the other sections of SECTION 3.1.

               (g)  STATUS  OF  BORROWER.  Lender  shall be  satisfied  that the
following  are true and correct as of the date on which  Borrower has  requested
that such Construction Loan be made:

                      (i) Each  representation and warranty set forth in ARTICLE
4 is true and correct as if made on such date;

                      (ii) No Event of Default or Default  has  occurred  and is
continuing or will result from such Credit Event;

                      (iii) No event  of  default  under  and as  defined  in or
applicable to any Project Document has occurred and is continuing; and

                      (iv) Each Credit Document and Project  Document remains in
full force and effect.

                                       17

<PAGE>

        3.3.  NO APPROVAL OF WORK; ADJUSTMENTS TO PROJECT BUDGET.

               (a) The making of any  Construction  Loan hereunder  shall not be
deemed an  approval  or  acceptance  by Lender  of any  work,  labor,  supplies,
materials or equipment furnished or supplied with respect to the Project.

               (b) If  requested  by  Borrower,  Lender may,  in its  reasonable
discretion,  adjust the amounts of any  individual  categories  or line items of
Project Costs as set forth in the Project Budget by increasing or decreasing the
amounts shown on the Project  Budget for each such  individual  category or line
item;  PROVIDED THAT, Borrower shall have the right to adjust line items without
Lender's  consent up to an aggregate  maximum change of twenty percent (20%) per
line item from the original  Project  Budget;  PROVIDED  FURTHER,  that Borrower
shall  immediately  provide  Lender  with notice of any such  adjustments.  With
respect to adjustments  in excess of twenty  percent (20%),  Borrower shall have
the right to request such  adjustments  from the Lender  Representative  no more
frequently  than once each thirty  (30) days.  The Lender  Representative  shall
approve  or   disapprove   such   requests   within  four  (4)  Business   Days.
Notwithstanding  anything to the contrary  herein,  however,  no such adjustment
made  pursuant to this SECTION 3.3 shall change the  aggregate  amount of all of
the Project Costs as shown on the Project Budget.

        3.4. WAIVER OF FUNDING; ADJUSTMENT OF DRAWDOWN REQUESTS. Notwithstanding
the foregoing,  Lender, without waiving any of its rights hereunder,  shall have
the right to make a Construction  Loan or Construction  Loans hereunder  without
full compliance by Borrower with the conditions  described in this ARTICLE 3. If
Lender determines that a material item or items listed in a Drawdown Certificate
as a Project Cost is not properly included in such Drawdown Certificate,  Lender
may in its  reasonable  discretion  cause  to be  made a  Construction  Loan  or
Construction Loans in the amount requested in such Drawdown Certificate less the
amount of such item or items. In the event that Borrower prevails in any dispute
as to  whether  such  Project  Costs were  properly  included  in such  Drawdown
Certificate,  Construction  Loans in the amount requested but not initially made
shall forthwith be made.

        3.5.  EXPENSES  IN EXCESS OF  PROJECT  BUDGET.  If the amount of Project
Costs with  respect to the  Project  exceeds  the  applicable  amount  available
pursuant to the Loan Facility and the Capital Contribution,  GST may make a loan
to Borrower in a maximum  amount of the  unbudgeted  Project  Costs equal to the
difference between the amount, if any, contributed by Borrower's shareholder and
twenty percent (20%) of the Project Budget; PROVIDED THAT such loan be unsecured
and  deeply  subordinated  to  Borrower's   obligations  to  Lender  under  this
Agreement.

        3.6.  CONDITIONS  PRECEDENT TO TERM LOAN  CONVERSION.  The obligation of
Lender  to  convert  the  Construction  Loans to a Term Loan is  subject  to the
satisfaction of the following conditions on or prior to the Term Loan Conversion
Date (unless waived by Lender):

               (a) COMPLETION. Completion of the Project shall have occurred.

                                       18


<PAGE>

               (b)  STATUS  OF  BORROWER.  Lender  shall be  satisfied  that the
following  are true and correct as of the date on which  Borrower has  requested
that the Term Loan Conversion be made:

                      (i) Each  representation and warranty set forth in ARTICLE
4 of this  Agreement  and in  PARAGRAPH  3 of the Pledge  Agreement  is true and
correct  in  all  material  respects  as  if  made  on  such  date  (except  for
representations and warranties  expressly made as of a specified date, which are
true as of such date);

                      (ii) No Event of Default or Default  has  occurred  and is
continuing or will result from such Term Loan Conversion;

                      (iii) No material event of default under and as defined in
or applicable to any Project Document has occurred and is continuing; and

                      (iv) Each Credit Document and Project  Document remains in
full force and effect.

               (c) CONVERSION  PROCEDURE.  Lender shall have received the Notice
of Term Loan Conversion,  in form and substance  satisfactory to Lender,  within
the time periods specified in SECTION 2.1(B).

                   ARTICLE 4 - REPRESENTATIONS AND WARRANTIES

        Borrower  makes the following  representations  and warranties to and in
favor of Lender as of the date hereof and as of the Closing  Date.  All of these
representations  and warranties shall survive the Closing Date and the making of
the Construction Loans and Term Loans:

        4.1.  ORGANIZATION.

               (a)  Borrower  (i) is a  corporation  duly  constituted,  validly
existing  and in good  standing  under the laws of the State of Hawaii,  (ii) is
duly  qualified,  authorized  to do  business  and  in  good  standing  in  each
jurisdiction  where  the  character  of  its  properties  or the  nature  of its
activities makes such qualification necessary, (iii) has all requisite corporate
power and authority  (A) to carry on its business as now being  conducted and as
proposed to be  conducted  by it, (B) to own or hold under lease and operate the
property  it purports to own or hold under  lease,  (C) to execute,  deliver and
perform each Operative  Document to which it is a party,  (D) to take all action
as may be necessary to consummate the transactions  contemplated  thereunder and
(E) to grant the liens and  security  interest  provided  for in the  Collateral
Documents  to which it is a party,  and (iv)  has the  power  and  authority  to
execute and deliver each Operative Document to which it is a party.

        4.2. AUTHORIZATION;  NO CONFLICT. Borrower has duly authorized, executed
and  delivered  each  Operative  Document to which  Borrower is a party (or such
Operative Documents have been duly and validly assigned to Borrower and Borrower
has duly and

                                       19

<PAGE>

validly assumed the obligations  thereunder),  and neither Borrower's  execution
and  delivery  thereof nor its  consummation  of the  transactions  contemplated
thereby nor its  compliance  with the terms thereof (i) does or will  contravene
the Charter Documents of Borrower or any other Legal  Requirement  applicable to
or binding on Borrower or any of its properties, (ii) does or will contravene or
result in any breach of or constitute any default under, or result in or require
the creation of any Lien (other than  Permitted  Liens) upon any of its property
under,  any agreement or instrument to which it is a party or by which it or any
of its  properties  may be bound or affected,  or (iii) does or will require the
consent or approval of any Person which has not already been obtained.

        4.3.  ENFORCEABILITY.  Each  Operative  Document to which  Borrower is a
party or which it has  assumed  is a legal,  valid  and  binding  obligation  of
Borrower,  enforceable  against Borrower in accordance with its terms, except to
the  extent  that  enforceability  may  be  limited  by  applicable  bankruptcy,
insolvency,  moratorium,  reorganization  or other  similar laws  affecting  the
enforcement of creditors'  rights and subject to general  equitable  principles.
None of the  Operative  Documents  to which  Borrower is a party or which it has
assumed have been amended or modified except in accordance with this Agreement.

        4.4. ERISA. There is no ERISA Plan with respect to Borrower or any ERISA
Affiliate,  and  neither  Borrower  nor  any  ERISA  Affiliate  has  maintained,
contributed  to or been  obligated to  contribute  to any ERISA Plan at any time
within the preceding five (5) years.

        4.5. TAXES. Borrower has filed all federal,  state and local tax returns
that it is  required  to file,  has paid all taxes it is  required to pay to the
extent due (other  than those taxes that it is  contesting  in good faith and by
appropriate proceedings, with adequate, segregated reserves established for such
taxes) and, to the extent such taxes are not yet due, has  established  reserves
that are adequate for the payment thereof and are required by GAAP.

        4.6.  BUSINESS,  DEBT,  CONTRACTS,  ETC.  Borrower has not conducted any
business other than the  development  of the Project and  activities  incidental
thereto,  it has no outstanding  Debt or other material  liabilities  other than
pursuant  to or  allowed by the  Credit  Documents,  and it is not a party to or
bound by any material contract other than the Operative Documents to which it is
a party.

        4.7. FILINGS. No filing,  recording,  refiling or rerecording other than
those listed on SCHEDULE 4 is  necessary to perfect and maintain the  perfection
of the interest,  title or Liens referred to in SECTION 4.20, and on the Closing
Date all such  filings or  recordings  (other than those that are required to be
made only at a later date,  which are so indicated on SCHEDULE 4) will have been
made.

        4.8. GOVERNMENTAL  REGULATION.  Except as described in this SECTION 4.8,
neither Borrower,  nor any Affiliate of Borrower will, solely as a result of the
construction,  ownership,  leasing or operation of the Project,  or the entering
into any Operative Document or any transaction contemplated hereby or thereby be
subject to, or not exempt  from,  regulation  under the  Communications  Act, or
under state laws and regulations respecting the

                                       20


<PAGE>

rates  or the  financial  or  organizational  regulation  of  fiber  optic  data
transmission  companies.  Borrower is a "telecommunications  common carrier," as
that  term  is  defined  in  the  Communications  Act,  and is  classified  as a
non-dominant  carrier  by the  FCC  with  respect  to any  domestic,  interstate
telecommunications   service  it  offers.  Borrower  is  authorized  to  provide
domestic,  interstate telecommunications service as a non-dominant carrier under
the FCC regulatory  framework,  and it has filed an appropriate  tariff with the
FCC.  Borrower is a "public  utility"  providing  "telecommunications  services"
under Chapter 269 of the Hawaii Revised  Statutes and the Rules and  Regulations
of the  Hawaii  State  Public  Utility  Commission  ("PUC")  and  possesses  all
certificates,  authorizations,  consents or  approvals  necessary to conduct its
business  as  now  being  conducted.  Pursuant  to a  grant  of  authority  in a
Certificate of Public Convenience and Necessity ("CPCN") by Order dated February
12,  1986 of the PUC,  Borrower  has  authority  to provide  high-speed  digital
microwave  data  transmission  services  to the  State of  Hawaii  as a  Digital
Microwave  Transmission  Carrier.  Pursuant  to a Decision  and Order of the PUC
dated  March 20,  1995,  Borrower's  CPCN was  amended  such that  Borrower  has
authority  to provide  both data and voice  digital  transmission  services on a
point-by-point  basis in the State of Hawaii. The initial Hawaii state tariff of
Borrower was approved by the PUC on April 1, 1986. By deemed approval of the PUC
effective  as of September  4, 1996,  Borrower's  tariff filed on August 5, 1996
permits  Borrower  to  provide  local  exchange  service in the State of Hawaii.
Except as to  matters  for which  appropriate  waivers or  exemptions  have been
obtained,  Borrower is not subject to regulation under any Governmental  Rule as
to securities,  rates or financial or organizational matters that would preclude
any  Construction  Loan, or the incurrence by Borrower of any of the Obligations
or the  execution,  delivery  and  performance  by  Borrower  of  the  Operative
Documents.

        4.9. FINANCIAL  STATEMENTS.  The financial statements of Borrower, as of
June  30,  1997,  certified  by  an  appropriate  authorized  officer  or  other
authorized  representative  of Borrower,  copies of which have been delivered to
Lender,  are true,  complete  and  correct  and  fairly  present  the  financial
condition of Borrower as of the date thereof. The financial statements have been
prepared in accordance  with GAAP on a consistent  basis  throughout the periods
indicated and with each other,  except that any interim financial  statements do
not contain all  footnotes  required by GAAP and are subject to normal  year-end
adjustments.  Borrower does not have and will not have any material liabilities,
direct or contingent, except as will be disclosed in such financial statements.

        4.10. PARTNERSHIPS AND JOINT VENTURES. Borrower is not a general partner
or a limited  partner in any general or limited  partnership or a joint venturer
in any joint venture.

        4.11. NO DEFAULT.

               (a) No Event of Default or Default has occurred or is existing.

               (b)  Borrower is not in default  under any term of any  Operative
Document,  or any agreement  relating to any  obligation of Borrower for or with
respect to borrowed  money,  and to the best of Borrower's  knowledge,  no other
party to any Project Document is in default with respect to any term thereof.

                                       21

<PAGE>
        4.12.  POSSESSION OF FRANCHISES,  LICENSES,  ETC. Except as disclosed on
SCHEDULE 3 and those the failure of which to obtain does not and will not have a
Material  Adverse  Effect,  Borrower  possesses  all  franchises,  certificates,
licenses,  Permits, and other authorizations from any Governmental  Authorities,
free from unduly  burdensome  restrictions,  that are necessary or advisable for
the leasing, ownership,  maintenance and operation of its properties and assets,
and  Borrower  is not in  violation  of any  thereof  in any  respect.  Borrower
possesses all patents, copyrights, trademarks and trade names, or rights thereto
necessary to perform its duties under the  Operative  Documents  and Borrower is
not in  violation  thereof in any respect or of any valid  rights of others with
respect to any of the foregoing.

        4.13. PERMITS.  There are no Permits under existing law that are or will
become  Applicable  Permits  other than the Permits  described in SCHEDULE 3 and
those  the  failure  of which to  obtain  does not and will not have a  Material
Adverse Effect.  Each  Applicable  Permit is either (y) in full force and effect
and is not subject to any appeals or further  proceedings or to any  unsatisfied
condition that may allow  material  modification  or revocation,  in the case of
those  Permits  listed  in  Part I of  SCHEDULE  3, or  (z),  of a type  that is
routinely  granted on application and that would not normally be obtained before
the  commencement  of a construction  or  reconstruction  as contemplated by the
Operative Documents in the case of those Applicable Permits listed in Part II of
SCHEDULE 3.  Borrower  has no reason to believe  that any Permit so indicated on
SCHEDULE 3 will not be obtained before it becomes an Applicable Permit.

        4.14. OFFICES, LOCATION OF COLLATERAL.

               (a) The chief  executive  office or chief place of  business  (as
such term is used in Division 9 of the Uniform  Commercial  Code as in effect in
the  State of  Hawaii  from  time to time) of  Borrower  is  located  at 4317 NE
Thurston Way, Vancouver, Washington, 98662.

               (b) All of the Collateral (other than the Accounts, the shares of
Borrower's  Common Stock pledged pursuant to the Pledge  Agreement,  and general
intangibles)  is, or when installed  pursuant to the Project  Documents will be,
located on the Leased Property or the Applicable Easements.

               (c) Borrower's  books of accounts and records are located at 4317
NE Thurston Way, Vancouver, Washington, 98662.

        4.15. ADVERSE CHANGE. To the best of Borrower's knowledge,  there are no
facts or  conditions,  with respect to the Project or Borrower  which have or in
the future will have (so far as Borrower can now reasonably  foresee) a Material
Adverse Effect which are not listed on SCHEDULE 5.

        4.16.  PROJECT  DOCUMENTS.  Borrower makes, as of the time made, each of
the  representations  and warranties  contained in the Project  Documents or any
Additional  Project  Document to which Borrower is or will be a party to and for
the benefit of Lender as if the same were set forth at length herein.

                                       22


<PAGE>
        4.17. HAZARDOUS SUBSTANCES.

               (a)  (i)  Borrower,  is not  and  has  not in the  past  been  in
violation of any Hazardous  Substance  Laws,  which  violation could result in a
material liability to Borrower or its respective  properties and assets or in an
inability of Borrower to perform its obligations under the Operative  Documents;
(ii) neither the  Borrower  nor, to the best  knowledge  of Borrower,  any third
party has used, released, discharged, generated, manufactured, produced, stored,
or disposed of in, on,  under,  or about the Leased  Property or any part of the
Project,  or transported thereto or therefrom,  any Hazardous  Substances in any
manner or in quantities  that could  reasonably be expected to subject Lender or
Borrower to liability  under any  Hazardous  Substance  Law;  (iii) there are no
underground  tanks,  whether  operative or temporarily  or  permanently  closed,
located on the Leased  Property  or any part of the  Project;  (iv) there are no
polychlorinated  biphenyls  ("PCBS") or items  containing  PCBs used,  stored or
present at, on or near the Leased  Property or any part of the Project,  and (v)
to  the  best  knowledge  of  Borrower,  there  is or  has  been  no  condition,
circumstance,  action,  activity  or event  that  could  form  the  basis of any
violation  of, or liability to Lender or its  Affiliates  under,  any  Hazardous
Substance Law.

               (b)  There is no  proceeding,  investigation  or  inquiry  by any
Governmental  Authority  (including  Governmental  Authorities  in the  State of
Hawaii and the U.S.  Environmental  Protection  Agency) or any  non-governmental
third party with respect to the presence or release of such Hazardous Substances
in, on, from or to the Leased  Property or any part of the  Project,  and to the
best knowledge of Borrower,  no such proceedings have been requested,  suggested
or threatened by any such  Governmental  Authorities or  non-governmental  third
parties.

               (c) Borrower has no knowledge of any past or existing  violations
of any Hazardous Substances Laws by any Person relating in any way to the Leased
Property or any part of the Project.

        4.18.  TRANSFER OF CONTRACTS AND OTHER RIGHTS. All Project Documents and
Applicable  Permits have been  entered  into by or duly and validly  assigned to
Borrower free and clear of all Liens except  Permitted  Liens, and all necessary
Persons have duly consented to such assignment.

        4.19.  LITIGATION.  There are no pending  or, to the best of  Borrower's
knowledge,  threatened actions or proceedings of any kind,  including actions or
proceedings of or before any  Governmental  Authority,  to which Borrower or the
Project  is a party  or is  subject,  or by  which  any of them or any of  their
properties or the Project are bound that, if adversely  determined to or against
Borrower or the Project,  would have a Material Adverse Effect, nor, to the best
of Borrower's knowledge, is there any basis for any such action or proceeding.

                                       23


<PAGE>
        4.20. TITLE, LIENS AND EASEMENTS.

               (a) On and after the  Closing  Date,  Borrower  will have a good,
insurable  and  indefeasible  title to the  Project,  and all of the  Collateral
relating to the Project, and a good, insurable and indefeasible  interest in the
Leased  Property and a valid estate in the Applicable  Easements  other than the
Easements described in Part II of SCHEDULE 2, in each case free and clear of all
Liens,  encumbrances  or other  exceptions  to title except Liens in favor of or
created by Lender and Liens that do not interfere  with the intended use for the
Project by Borrower of the Leased Properties or Applicable  Easements.  The Lien
of the Collateral  Documents  constitutes a valid and subsisting  first priority
perfected  security interest in all the personal property described in the other
Collateral Documents, subject to no Liens except the Permitted Liens.

               (b) The  security  interests  granted to Lender  pursuant  to the
Collateral  Documents in the Collateral (i) as to personal  property included in
the Collateral,  constitute and, with respect to subsequently  acquired personal
property  included  in  the  Collateral,  will  constitute,  perfected  security
interests under the UCC (to the extent such personal  property is subject to the
UCC) and (ii) are, and,  with respect to such  subsequently  acquired  property,
will be, as to Collateral  perfected  under the UCC (to the extent such personal
property is subject to the UCC),  superior  and prior to the rights of all third
Persons now existing or  hereafter  arising  whether by way of  mortgage,  lien,
security interests,  encumbrance,  assignment or otherwise, except for Permitted
Liens. Except to the extent possession of portions of the Collateral is required
for perfection,  all such action as is necessary has been taken to establish and
perfect  Lender's  rights in and to the  Collateral,  including  any  recording,
filing,  registration,  giving of notice or other similar action. The Collateral
Documents  relating to the  Collateral  and the  financing  statements  relating
thereto have been duly filed or recorded in each office and in each jurisdiction
where  required  in order to create  and  perfect  the first  lien and  security
interest  described  above.  Borrower  has  properly  delivered  or caused to be
delivered to Lender all  Collateral  that  requires  perfection  of the Lien and
security interest described above by possession.

               (c) There are no  Easements  that are or will  become  Applicable
Easements  other than the  Easements  described  in SCHEDULE 2. Each  Applicable
Easement  is either  (y) in full  force and  effect  and is not  subject  to any
unsatisfied condition that may allow material modification or revocation, in the
case of those  Easements  listed in Part I of  SCHEDULE 2, or (z) of a type that
would not normally be obtained at the stage of the  construction  on the Closing
Date,  as  contemplated  by the  Operative  Documents,  in  the  case  of  those
Applicable  Easements listed in Part II of SCHEDULE 2. Borrower has no reason to
believe that any Easement so indicated on SCHEDULE 2 will not be obtained before
it becomes an Applicable Easement.

        4.21. UTILITIES. All utility services necessary for the construction and
the operation of the Project for its intended  purposes are available or will be
so available as and when required.

                                       24


<PAGE>
        4.22. SUFFICIENCY OF PROJECT DOCUMENTS.

               (a)  Other  than  those  that can be  reasonably  expected  to be
commercially available when and as required,  the services to be performed,  the
materials  to be  supplied  and the  real  property  interests,  the  Applicable
Easements,  the Applicable  Permits,  and other rights  granted  pursuant to the
Project Documents:

                      (i) comprise all of the  property  interests  necessary to
secure  any  right   material   to  the   acquisition,   leasing,   development,
construction, installation, completion, operation and maintenance of the Project
in accordance  with all Legal  Requirements  and in accordance  with the Project
Schedules,  all without  reference to any  proprietary  information not owned by
Borrower;

                      (ii) are  sufficient  to enable the Project to be located,
constructed and operated; and

                      (iii)  provide   adequate   ingress  and  egress  for  any
reasonable  purpose in  connection  with the  construction  and operation of the
Project.

               (b) There are no services,  materials or rights  required for the
construction  or operation of the Project in  accordance  with the  Construction
Contracts,  the Plans and Specifications  and the Base Case Project  Projections
other than those that can  reasonably be expected to be  commercially  available
within the line items contained in the applicable Project Budget.

        4.23.  SECURITIES.  No registration of the Note under the Securities Act
of 1933, as amended,  or under the  securities  laws of any state is required in
connection with the offering, issuance, sale or transfer of the Note hereunder.

        4.24.  DISCLOSURE.  Neither this Agreement nor any certificate furnished
to Lender,  or to any  consultant  submitting a report to Lender,  by or, to the
knowledge of Borrower, on behalf of Borrower in connection with the transactions
contemplated  by this  Agreement,  the other  Project  Documents  or the design,
construction, testing or operation of the Project, contains any untrue statement
of a material fact or omits to state a material fact  necessary in order to make
the  statements   contained   herein  or  therein  not   misleading   under  the
circumstances  in which  they were made at the time  such  statements  are made.
There is no fact known to Borrower  which  Borrower has not disclosed in writing
to Lender which does or reasonably could have a Material Adverse Effect.

        4.25.  CONSTRUCTION  BUDGET;  PROJECTIONS.  Borrower  has  prepared  the
Project  Budget and the Base Case Project  Projections  and is  responsible  for
developing the assumptions on which the Project Budget and the Base Case Project
Projections are based. The Project Budget and the Base Case Project  Projections
(i) are, to the best of Borrower's  knowledge as of the Closing  Date,  based on
reasonable  assumptions  as to all legal and  factual  matters  material  to the
estimates set forth therein, and (ii) as of the Closing Date are consistent with
the provisions of the Project Documents.  In the reasonable opinion of Borrower,
as of the Closing Date the textual  material  accompanying the Base Case Project
Projections discloses

                                       25

<PAGE>

all  information  reasonably  necessary  for an  understanding  of the Base Case
Project Projections, and does not contain any material misstatements or omit any
information  which,  in  conjunction  with  other  information  given,  would be
necessary to make such information not materially misleading.

        4.26.  INTELLECTUAL PROPERTY.  Borrower owns or has the right to use all
patents, trademarks, service marks, trade names, copyrights,  licenses and other
rights,  which are  necessary  for the  operation  of its  business as presently
conducted. To the best of Borrower's knowledge, (a) no product, process, method,
substance,  part  or  other  material  presently  contemplated  to be sold by or
employed by Borrower in  connection  with its business  will  infringe  upon any
patent,  trademark,  service  mark,  trade  name,  copyright,  license  or other
intellectual  property  right of any other  Person,  (b) there are no pending or
threatened  claims or  litigation  against or affecting  Borrower  contesting or
calling  into  question  its  right  to sell or use any such  product,  process,
method, substance, part or other material or (c) there is no existing pending or
proposed,   patent,   invention,   device,   application  or  principle  or  any
Governmental  Rule or  standard  or code  which  would  prevent  or  inhibit  or
substantially  reduce the projected  revenues of Borrower,  or otherwise  have a
Material Adverse Effect.

                      ARTICLE 5 - COVENANTS OF THE BORROWER

               Borrower  covenants and agrees that so long as this  Agreement is
in effect, it will, unless Lender waives compliance in writing:

        5.1. NOTICES.  Promptly,  upon acquiring notice or giving notice, as the
case may be, or obtaining knowledge, give written notice to Lender of:

               (a) Any  litigation  pending or, to the  knowledge  of  Borrower,
threatened  against Borrower involving claims against Borrower or the Project in
excess of $100,000 in the aggregate or involving any  injunctive or  declaratory
relief, such notice to include copies of all papers filed in such litigation and
to be given  monthly if any such  papers  have been filed  since the last notice
given;

               (b) Any dispute or disputes which may exist between  Borrower and
any  Governmental  Authority and which involve (i) claims against Borrower which
individually  exceed  $100,000  or  in  the  aggregate  exceed  $200,000,   (ii)
injunctive or declaratory relief,  (iii) revocation,  expiration or modification
or the like of any Applicable Permit or Applicable  Easement,  or (iv) any Liens
for taxes due but not paid;

               (c) Any Event of Default or Default;

               (d) Any casualty, damage or loss, whether or not insured, through
fire, theft, other hazard or casualty,  or any act or omission of Borrower,  its
employees, agents, contractors,  consultants or representatives, or of any other
Person if such  casualty,  damage or loss affects  Borrower or the  Project,  in
excess of $50,000 for any one casualty or loss, or an aggregate of $100,000; or

                                       26


<PAGE>
               (e) Any matter which has resulted or is likely, in light of other
circumstances affecting Borrower, to have a Material Adverse Effect.

        5.2.  FINANCIAL STATEMENTS, REPORTS, ETC.

               (a) Deliver to Lender (or cause to be  delivered  to Lender),  in
form and detail  reasonably  satisfactory to Lender,  unless delivery and/or the
timing of delivery is waived by Lender:

                      (i) As soon as available but no later than sixty (60) days
after the close of the first,  second and third quarterly  periods of its fiscal
year,  quarterly  (and  year-to-date)  financial  statements  of and prepared by
Borrower to include a balance sheet and an income and expense statement;

                      (ii) As soon as  available  but no later than one  hundred
twenty  (120)  days  after the close of each  applicable  fiscal  year,  audited
financial  statements  of Borrower  including a statement  of equity,  a balance
sheet  as  of  the  close  of  such  year,  an  income  and  expense  statement,
reconciliation  of capital  accounts and a statement of cash flows, all prepared
in  accordance  with  GAAP and  certified  by an  independent  certified  public
accountant selected by the Person whose financial  statements are being prepared
and satisfactory to Lender.  Such certificate  shall not be qualified or limited
because of restricted or limited  examination by such accountant of any material
portion of the records of the applicable Person;

                      (iii) On the tenth day of each month,  with respect to the
preceding month, a report with respect to the Project  substantially in the form
of EXHIBIT P hereto.

                      (iv)  Within  thirty  (30) days  after  Completion  of the
Project,  "as built" maps  indicating  the locations  related to each  Easement,
Permit, Collation Agreement, Interconnection Agreement, and Pole and Conduit Use
Agreement.

                      (v) Such other statement or statements,  lists of property
and accounts,  budgets,  forecasts or reports relating to the Project, as Lender
may  reasonably  request  from  time to time and that  can be  provided  without
unreasonable cost to or effort on the part of Borrower.

               (b) Each  time  the  financial  statements  are  delivered  under
subsections (i) or (ii) of SECTION 5.2(A),  a certificate  signed by the natural
person who is a senior  financial  officer of Borrower shall be delivered  along
with such financial statements,  certifying that such officer has made or caused
to be made a review of the transactions and financial  condition of the Borrower
during the relevant  fiscal  period and that such review has not, to the best of
such  officer's  knowledge,  disclosed  the  existence of any event or condition
which constitutes an Event of Default or a Default hereunder or under any Credit
Document  applicable to Borrower,  or if any such event or condition  existed or
exists, the nature thereof and the corrective actions that Borrower has taken or
proposes to take with respect thereto,  and also certifying that the Borrower is
in compliance  with all  applicable  provisions  of this  Agreement or any other
Credit Document applicable to Borrower or, if such is not the case,

                                       27


<PAGE>

stating  the nature of such  non-compliance  and the  corrective  actions  which
Borrower has taken or proposes to take with respect thereto.

        5.3.  EXISTENCE,  CONDUCT  OF  BUSINESS,   PROPERTIES,  ETC.  Except  as
otherwise  expressly  permitted under this Agreement,  (a) maintain and preserve
its existence as a Hawaii corporation and all rights,  privileges and franchises
necessary or desirable in the normal conduct of its business, (b) perform all of
its contractual obligations under the Project Documents and all other agreements
and contracts by which it is bound,  maintain all necessary  Permits,  including
all  Applicable  Permits,  with respect to its business and the Project,  except
such as may be  contested  in good faith or as to which a bona fide  dispute may
exist, PROVIDED THAT the non-payment of same would not reasonably be anticipated
to  result  in a  Material  Adverse  Effect  or  that  provision  is made to the
satisfaction of Lender in its reasonable  discretion for the posting of security
(other than the Collateral) for or the bonding of such obligations or the prompt
payment thereof in the event that such  obligation is payable,  (c) at or before
the time that any Permit becomes an Applicable  Permit,  obtain such Permit, and
(d) engage only in the business contemplated by the Operative Documents.

        5.4.  OBLIGATIONS.  Pay all Obligations,  howsoever arising, as and when
due and  payable,  including  taxes and tax  claims,  except  (a) such as may be
contested in good faith or as to which a bona fide  dispute may exist,  PROVIDED
THAT the  non-payment of same would not reasonably be anticipated to result in a
Material  Adverse Effect or that provision is made to the satisfaction of Lender
in its  reasonable  discretion  for the  posting  of  security  (other  than the
Collateral) for or the bonding of such obligations or the prompt payment thereof
in the event that such  obligation is payable and (b) Borrower's  trade payables
which shall be paid in the ordinary course of business.

        5.5. DAMAGE AND  CANCELLATION  PAYMENTS.  Except as otherwise  expressly
permitted under this Agreement apply the proceeds of any surety,  performance or
similar  bonds and any  liquidated  or other  damages  paid in respect of damage
payments or performance  payments by any contractors or  subcontractors or other
Persons involved in the construction and operation of the Project, to prepay the
Loan Facility.

        5.6. BOOKS,  RECORDS,  ACCESS.  Maintain  adequate  books,  accounts and
records  with  respect to Borrower  and the  Project  and prepare all  financial
statements required hereunder in accordance with GAAP and in compliance with the
regulations of any  Governmental  Authority  having  jurisdiction  thereof,  and
permit  employees  or  agents  of  Lender,  at any  reasonable  times  and  upon
reasonable prior notice to inspect all of Borrower's  properties,  including the
Leased  Property,  to examine or audit all of  Borrower's  books,  accounts  and
records and make  copies and  memoranda  thereof  and to observe the  operation,
maintenance and repair of the Project.

        5.7.  OPERATION OF PROJECT AND ANNUAL BUDGET.

               (a) (i) Keep the Project,  or cause the same to be kept,  in good
operating  condition  consistent with Prudent Practices,  all Applicable Permits
and  applicable  Legal  Requirements  and  all  applicable  requirements  of the
Operative  Documents,  and make or cause to be made all repairs  (structural and
non-structural, extraordinary or ordinary)

                                       28


<PAGE>
necessary to keep the Project in such  condition;  and (ii) operate and maintain
the Project in a manner consistent with Prudent Practices and in compliance with
the terms of the Project  Documents  so as to assure,  to the extent  reasonably
possible,  the maximum generation of net revenue for the Project consistent with
the Project Documents.

               (b) On or  before  the date  forty-five  (45)  days  prior to the
Expected  Completion Date, deliver to Lender an update of the Project Budget for
the period from the date it is delivered until the  anticipated  commencement of
commercial  operation  of the  Project and the Annual  Operating  Budget for the
period from the anticipated commencement of commercial operation through the end
of the first full  fiscal  year  thereafter  (collectively,  the  "FIRST  ANNUAL
OPERATING  BUDGET"),  in form and  substance  reasonably  acceptable  to Lender,
setting forth all anticipated  start-up costs,  Project Revenues,  Debt Service,
proposed  distributions,  maintenance,  repair and operation expenses (including
reasonable allowance for contingencies), and all other anticipated Operation and
Maintenance  Costs for the Project for such period.  Such First Annual Operating
Budget shall be  delivered by Borrower to Lender no later than July 1, 1998.  No
less than  forty-five  (45) days in advance of the beginning of each fiscal year
thereafter,  Borrower will similarly  adopt an Annual  Operating  Budget for the
ensuing fiscal year covering the matters (other than start-up  costs)  specified
above  in this  SECTION  5.7(B)  and such  other  matters  as may be  reasonably
required by Lender. Copies of the draft Annual Operating Budget for each year of
operation  shall be promptly  furnished  to Lender for review and  approval.  If
Lender does not approve the draft Annual Operating Budget submitted by Borrower,
Lender  shall  give  written  notice to  Borrower  within  fifteen  (15) days of
Lender's  receipt of such  draft  Annual  Operating  Budget in  compliance  with
SECTION  10.1  hereof.  If Lender and  Borrower  do not agree on a final  Annual
Operating Budget by the date the new fiscal year commences,  the previous fiscal
year Annual  Operating Budget increased by ten percent (10%) shall be used until
Lender and Borrower  agree on the new final Annual  Operating  Budget;  PROVIDED
HOWEVER,  that if a dispute in the previous  fiscal year  resulted in such a ten
percent (10%) increase in the Annual Operating Budget, the parties shall use the
previous fiscal year Annual Operating Budget without increase. The Operation and
Maintenance  Costs in each such  Annual  Operating  Budget  which are subject to
escalation  limitations in the Project Documents shall not, absent extraordinary
circumstances,  be increased from year to year by more than the amounts provided
in such Project  Documents.  Borrower will operate and maintain the Project,  or
cause the Project to be operated and  maintained,  within each Annual  Operating
Budget as approved by Lender.

        5.8.  COMPLETION.  Achieve Completion in a timely and diligent manner in
accordance with the Project Schedule,  the Construction  Contracts and the Plans
and  Specifications,  the Project Budget as the same may be extended,  and in no
event later than August 15, 1998.

        5.9.  PRESERVATION OF RIGHTS; FURTHER ASSURANCES.

               (a)  Preserve,  protect and defend the rights of  Borrower  under
each and every Project Document,  including  prosecution of suits to enforce any
right of Borrower thereunder and enforcement of any claims with respect thereto,
and, at the request of Lender,  permit Lender to participate in such capacity as
it may  choose in any such  suit,  any  defense  thereof  or in the  preparation
therefor; PROVIDED, HOWEVER, that upon the occurrence and

                                       29


<PAGE>
during the continuance of any Event of Default,  if Lender requests that certain
actions be taken and Borrower fails to take the requested action within five (5)
Business  Days,  Lender may enforce,  in its own name,  in the name of Lender or
Borrower's name, such rights of Borrower.

               (b) From time to time, execute,  acknowledge,  record,  register,
deliver  and/or  file  all  such  notices,  statements,  instruments  and  other
documents,  including  any  memorandum  of lease or other  agreement,  financing
statement,  continuation statement, certificate of title or estoppel certificate
relating to the Loan Facility  stating the interest and charges then due and any
known  defaults,  and take such other steps as may be  necessary or advisable to
render fully valid and enforceable  under all applicable laws the rights,  liens
and  priorities of Lender with respect to all Collateral and other security from
time to time furnished  under this Agreement or intended to be so furnished,  in
each case in such form and at such times as shall be satisfactory to Lender, and
pay all fees and expenses  (including  attorneys' fees and expenses) incident to
compliance with this SECTION 5.9(B).

               (c) If Borrower  shall at any time  acquire any real  property or
leasehold or other interest in real property, promptly upon such acquisition (or
on the Closing Date if such acquisition occurred prior thereto) execute, deliver
and record a mortgage,  satisfactory in form and substance to Lender, subjecting
such real  property  or  leasehold  or other  interests  to a lien and  security
interest of Lender created by such mortgage.

        5.10.  CONSTRUCTION  OF PROJECT.  Make or cause to be made all contracts
and do or cause to be done all things reasonably  necessary for the acquisition,
construction,  expansion,  improvement  and  equipping of the  Project,  with or
without advertising for bids, and cause the Project to be constructed, expanded,
improved  and  equipped   substantially   in  accordance   with  the  Plans  and
Specifications,  the  Construction  Contracts,  the  Project  Budget and Project
Schedule (insofar as necessary to comply with SECTION 5.7) and not exceeding the
disbursements  as  contemplated  by  the  Construction   Contracts,   except  as
compliance  therewith  may be waived  pursuant to SECTION 6.12  hereof.  Without
limiting the generality of the foregoing,  Borrower shall diligently  pursue and
enforce all of its rights and remedies under the Construction Contracts, and any
other  contracts or agreements  related to the  construction  of the Project and
shall ensure that the Project is constructed  substantially  in accordance  with
all such contracts and agreements, to the extent applicable.

        5.11. TAXES, OTHER GOVERNMENT CHARGES AND UTILITY CHARGES. Pay, or cause
to be paid, as and when due and prior to delinquency, all taxes, assessments and
governmental  charges of any kind that may at any time be  lawfully  assessed or
levied against or with respect to Borrower or the Project, all utility and other
charges incurred in the operation, maintenance, use, occupancy and upkeep of the
Project,  and all  assessments  and charges  lawfully  made by any  Governmental
Authority for public  improvements that may be secured by a lien on the Project.
However,  Borrower  may  contest in good faith any such taxes,  assessments  and
other  charges and, in such event,  may permit the taxes,  assessments  or other
charges so contested to remain unpaid during any period, including appeals, when
Borrower  is in  good  faith  contesting  the  same,  so  long  as (a)  reserves
reasonably  satisfactory to Lender have been established in an amount sufficient
to pay any such taxes,  assessments or other charges,  accrued  interest thereon
and potential penalties or other costs relating thereto, or

                                       30


<PAGE>

other  adequate  provision  for the payment  thereof  shall have been made,  (b)
enforcement  of the contested  tax,  assessment  or other charge is  effectively
stayed for the entire duration of such contest,  and (c) any tax,  assessment or
other  charge  determined  to be due,  together  with any  interest or penalties
thereon, is immediately paid after resolution of such contest.

        5.12. COMPLIANCE WITH LAWS, INSTRUMENTS,  ETC. At its expense,  promptly
(a) comply, or cause compliance, in all material respects, with all laws, rules,
regulations and Legal Requirements, including laws, rules, regulations and Legal
Requirements,  relating to pollution control,  environmental  protection,  equal
employment  opportunity  or employee  benefit  plans and employee  safety,  with
respect to Borrower or the Project,  whether or not compliance  therewith  shall
require  structural  changes in the Project or any part thereof or require major
changes in operational  practices or interfere with the use and enjoyment of the
Project or any part thereof,  and (b) procure,  maintain and comply, or cause to
be procured, maintained and complied with, in all material respects, all Permits
required  for any use of the  Project  or any part  thereof,  then being made or
contemplated  by the  Operative  Documents,  except  that  Borrower  may, at its
expense, contest by appropriate proceedings conducted in good faith the validity
or application  of any such law, rule or regulation;  PROVIDED THAT, (i) neither
Lender nor Borrower  would be subject to any criminal  liability  for failure to
comply  therewith  and  (ii)  all  proceedings  to  enforce  such  law,  rule or
regulation against Lender,  Borrower, or the Project or any part of any of them,
shall have been duly and  effectively  stayed during the entire pendency of such
contest.

        5.13.  WARRANTY OF TITLE.  Maintain (a) good,  marketable  and insurable
leasehold  estate to the Leased  Property,  and good,  marketable  and insurable
title to the  Applicable  Easements  and (b)  good,  marketable,  insurable  and
indefeasible  title to all of its other respective  properties and assets (other
than  properties and assets  disposed of in the ordinary  course of business) to
the extent that failure to do so would have a Material Adverse Effect.

        5.14. MAINTENANCE OF INSURANCE.

               (a) REQUIRED INSURANCE.  Borrower shall,  without cost to Lender,
maintain  or cause to be  maintained  on its  behalf  in effect at all times the
types of  insurance  set forth in SCHEDULE 6,  together  with any other types of
insurance required under this Agreement.

               (b)  RIGHTS OF  LENDER.  If at any time the  insurance  as herein
provided shall be reduced or cease to be maintained,  then (without limiting the
rights of Lender  hereunder in respect of the Event of Default which arises as a
result of such  failure)  Lender  may at its  option  obtain  and  maintain  the
insurance  required hereby and, in such event,  Borrower shall reimburse  Lender
upon demand for the cost thereof  together with  interest  thereon at a rate per
annum equal to the Default  Rate.  If Borrower  fails to respond in a timely and
appropriate  manner  (as  reasonably  determined  by  Lender)  to take any steps
necessary or reasonably requested by Lender to collect from any insurers for any
loss covered by any  insurance  required to be  maintained by this SECTION 5.14,
Lender shall have the right to make all proofs of loss, adjust all claims and/or
receive all or any part of the  proceeds of the  foregoing  insurance  policies,
either in its own name or the name of Borrower; PROVIDED, HOWEVER, that Borrower
shall,  upon Lender's  request and at Borrower's own cost and expense,  make all
proofs of loss and take all other steps necessary or reasonably requested

                                       31


<PAGE>

by Lender  to  collect  from  insurers  for any loss  covered  by any  insurance
required to be obtained by this SECTION 5.14.

               (c)  INSURANCE  COMPLIANCE.  On or before  the  Closing  Date and
annually  at each  policy  renewal  Borrower  shall  furnish  to  Lender,  (i) a
certificate signed by a duly authorized representative of Borrower,  listing the
insurance  then  maintained  by or on behalf of Borrower  and stating  that such
insurance complies in all respects with the terms hereof, together with evidence
of payment of the premiums thereon,  and (ii) the report of Borrower's insurance
broker, and prior to Completion, the report of Contractors' insurance broker, to
the effect that Borrower's  insurance complies in all respects with the terms of
this SECTION 5.14 and SCHEDULE 6.

               (d)  Borrower  shall  and  shall  cause  (i)  all  of  Borrower's
contractors  to,  name  Lender a loss  payee or an  additional  insured  on each
insurance  policy  with  respect to any aspect of the  Project and (ii) all such
insurance  policies to provide Lender with written notice ten (10) days prior to
cancellation of any such insurance policy for non-payment of premiums and thirty
(30) days  prior to  cancellation  of any such  insurance  policy  for any other
reason.

        5.15.  EVENT OF EMINENT  DOMAIN.  If an Event of Eminent Domain shall be
threatened or occur with respect to any Collateral,  (a) promptly upon discovery
or receipt of notice of any such threat or  occurrence  provide  written  notice
thereof to Lender, (b) diligently pursue all its rights to compensation  against
the relevant Governmental  Authority in respect of such Event of Eminent Domain,
(c) not,  without  the written  consent of Lender,  which  consent  shall not be
unreasonably withheld,  compromise or settle any claim against such Governmental
Authority, (d) hold all amounts and proceeds (including instruments) received in
respect of any Event of Eminent Domain ("EMINENT DOMAIN  PROCEEDS") in trust for
the benefit of Lender,  segregated from other funds of Borrower, for application
in  accordance  with SECTION 7.3, and (e)  forthwith pay over to Lender all such
amounts  and  proceeds  in  the  same  form  as  received  (with  any  necessary
endorsement) to be held and applied in accordance with the provisions of SECTION
7.3.  Borrower  consents to the  participation  of Lender in any eminent  domain
proceedings,  and  Borrower  shall  from  time to time  deliver  to  Lender  all
instruments requested by it to permit such participation.

        5.16. INDEMNIFICATION.

               (a)  Indemnify,  defend and hold  harmless  Lender  and, in their
capacities  as such,  Lender's  respective  officers,  directors,  shareholders,
controlling  persons,   employees,   agents  and  servants  (collectively,   the
"INDEMNITEES")  from and against and reimburse the  Indemnitees  for any and all
losses, claims, obligations, liabilities, damages, injuries (to person, property
or natural resources),  penalties, stamp or other similar taxes, actions, causes
of action,  suits,  judgments,  costs and  expenses  (including  attorneys'  and
consultants' fees and expenses) of whatever kind or nature,  whether or not well
founded, meritorious or unmeritorious, demanded, asserted or claimed against any
such  Indemnitee in any way relating to, or arising out of or in connection with
(i) this Agreement, the other Operative Documents or the Project; (ii) any Legal
Requirement  or Permit  relating  to the  Project or  Borrower,  the  release or
presence of any Hazardous Substance at the Project or released or

                                       32


<PAGE>

disposed of by the Project or by or on behalf of Borrower,  whether  foreseeable
or unforeseeable,  including all costs of removal and disposal of such Hazardous
Substances, all costs required to be incurred in determining whether the Project
is and  causing  the  Project  to be in  compliance  with all  applicable  Legal
Requirements and Permits;  and (iii) any claims, suits or liabilities against or
of Borrower or its Affiliates.

               (b) The foregoing  indemnities shall not apply with respect to an
Indemnitee,  to the extent the claims,  damages,  liabilities or losses arise as
the direct and sole result of the gross negligence or willful misconduct of such
Indemnitee, but shall continue to apply to other Indemnitees.

               (c) The provisions of this SECTION 5.16 shall survive foreclosure
of  the  Collateral  Documents  and  satisfaction  or  discharge  of  Borrower's
obligations  hereunder and shall be in addition to any other rights and remedies
of Lender.

               (d) In case any  action,  suit or  proceeding  shall  be  brought
against any  Indemnitee,  such  Indemnitee  shall  notify in writing  Lender and
Borrower of the  commencement  thereof,  and Borrower shall be entitled,  at its
expense,  acting through counsel  reasonably  acceptable to such Indemnitee,  to
participate in, and, to the extent that Borrower desires,  to assume and control
the defense  thereof.  Such  Indemnitee  shall  thereafter  be entitled,  at its
expense,  to participate in any action,  suit or proceeding the defense of which
has been assumed by Borrower.  Notwithstanding the foregoing, Borrower shall not
be  entitled to assume and control  the  defenses  of any such  action,  suit or
proceedings if and to the extent that, in the opinion of such Indemnitee and its
counsel,  such action, suit or proceeding  involves the potential  imposition of
criminal  liability on such  Indemnitee  or a conflict of interest  between such
Indemnitee and Borrower or between such Indemnitee and another  Indemnitee,  and
in such event (other than with respect to disputes  between such  Indemnitee and
other Indemnitees) Borrower shall pay the reasonable expenses of such Indemnitee
in such defense, but not more than the expense of one additional counsel.

               (e)  Borrower  shall report to such  Indemnitee  on the status of
such action,  suit or proceeding as  developments  shall occur.  Borrower  shall
deliver to such  Indemnitee a copy of each document filed or served on any party
in such action,  suit or proceeding,  and each document which Borrower possesses
relating to such action, suit or proceeding.

               (f) Upon  payment  of any  claim  by  Borrower  pursuant  to this
SECTION 5.16 or other similar  indemnity  provisions  contained  herein to or on
behalf  of an  Indemnitee,  Borrower,  without  any  further  action,  shall  be
subrogated to any and all claims that such Indemnitee may have relating thereto,
and  such  Indemnitee  shall  cooperate  with  Borrower  and give  such  further
assurances as are necessary or advisable to enable Borrower vigorously to pursue
such claims. Payment thereof by any Indemnitee or the payment by such Indemnitee
of any judgment or claim successfully perfected against such Indemnitee shall be
payable upon demand of such Indemnitee.

               (g) Any amounts payable by Borrower pursuant to this SECTION 5.16
shall be regularly  payable within thirty (30) days after  Borrower  receives an
invoice for such amounts from any applicable Indemnitee.

                                       33
<PAGE>

        5.17.  DEVELOPMENT  COMPANY  NET CASH  FLOW  AGREEMENTS.  To enter  into
agreements  pledging the Net Cash Flow of Borrower to support the Obligations of
each other  Development  Company to Lender and its Affiliates  upon a default or
event of a default of any other Development  Company;  PROVIDED HOWEVER,  that a
default  or event of default on the part of  another  Development  Company  with
respect to its Network Project Credit Agreement by itself,  shall not constitute
a default or event of default  with respect to this  Agreement by Borrower,  but
rather the Net Cash Flow of Borrower  shall be  available to cure the default or
event of default of such other  Development  Company or Companies.  Lender's and
its  Affiliates'  interest in  Borrower's  Net Cash Flow pursuant to such pledge
agreements  shall be senior to all other  Debt of  Borrower  (except  Borrower's
other  Obligations  to Lender  under  this  Agreement)  and any  obligations  of
Borrower to Greenstar for management fees.

        5.18.  CONSENTS  TO  ASSIGNMENT.   Borrower  shall  obtain  consents  to
assignment  from third  parties to Project  Documents not entered into as of the
Closing at the time such  Project  Documents  are  entered  into in the forms of
EXHIBIT M-1, M-2 and M-3, as applicable.  Borrower shall use its best efforts to
obtain  consents to assignment from third parties to Project  Documents  entered
into as of the Closing that are not delivered as of the Closing, in the forms of
EXHIBIT M-1, M-2 and M-3, as  applicable,  including  without  limitation  those
consents  described in Section  2.1(c).  Borrower  shall  provide  Lender with a
status  report with  respect to Project  Documents  entered into and consents to
assignment  to be  obtained no less  frequently  than every month in the monthly
reports  required  pursuant to SECTION 5.2,  commencing  on the tenth day of the
month which first occurs after the Closing Date.  Borrower  shall provide Lender
with each new consent to assignment received within three (3) days of receipt by
Borrower of such consent to assignment.

                         ARTICLE 6 - NEGATIVE COVENANTS

        Borrower covenants and agrees that until the entire principal balance of
the Loan Facility,  together with all interest,  fees,  charges and costs due to
Lender under this  Agreement  are paid in full,  it will not,  without the prior
written consent of Lender:

        6.1.  CONTINGENT  LIABILITIES.  Except as  provided  in this  Agreement,
become liable as a surety,  guarantor,  accommodation endorser or otherwise, for
or upon the obligation of any other Person; PROVIDED, HOWEVER, that this SECTION
6.1 shall not be deemed to prohibit:

               (a) The  acquisition  of goods,  supplies or  merchandise  in the
normal course of business or normal trade credit; or

               (b) The  endorsement  of negotiable  instruments  received in the
normal course of its business.

        6.2. LIMITATIONS ON LIENS. Create,  incur, assume or permit to exist any
Lien,  securing  a  charge  or  obligation  on  the  Project  or on  any  of the
Collateral,  real or personal,  whether now owned or hereafter acquired,  except
Permitted Liens.

                                       34

<PAGE>

        6.3.  INDEBTEDNESS.  Incur,  create,  assume or permit to exist any Debt
except (a) the Loan  Facility,  (b) up to Two  Hundred  Fifty  Thousand  Dollars
($250,000)  of  Debt  incurred  in the  ordinary  course  of  business  and  (c)
obligations  of Borrower for money  borrowed to finance  Project  cost  overruns
pursuant to SECTION 3.5 which is unsecured and deeply subordinated to Borrower's
Obligations to Lender hereunder, or cancel, modify, renew or otherwise rearrange
any  Debt or  make,  execute  or  deliver  any  assignment  for the  benefit  of
creditors,  bond,  confession of judgment,  mortgage or deed;  provided however,
that any such  creditor  of  Borrower  has  entered  into an  intercreditor  and
subordination agreement with Lender in form and substance acceptable to Lender.

        6.4. SALE OR LEASE OF ASSETS. Sell, lease, assign, transfer or otherwise
dispose of assets or  property,  whether now owned or  hereafter  acquired,  (a)
except in the ordinary  course of its business as  contemplated by the Operative
Documents and (b) except for obsolete, worn out or replaced property not used or
useful in its business,  in each case, at fair market value. The ordinary course
of Borrower's  business shall include sale or lease of irrevocable rights to use
dark fiber and conduits.

        6.5.  CHANGES.  Change the nature of its business or expand its business
other  than  (i)   developing   and   operating   a  fiber   optic  and  digital
telecommunications network and (ii) provision of telecommunications services and
capacity.

        6.6.  DIVIDENDS,  REDEMPTIONS,  ETC.  (i) Pay any  dividends or make any
distributions on its Equity Securities;  (ii) purchase,  redeem, retire, defease
or otherwise  acquire for value any of its Equity  Securities;  (iii) return any
capital  to any  holder  of  its  Equity  Securities  as  such;  (iv)  make  any
distribution  of assets,  Equity  Securities,  obligations  or securities to any
holder of its Equity  Securities  as such; or (v) set apart any sum for any such
purpose.

        6.7.  INVESTMENTS.  Make or permit to remain  outstanding  any advances,
loans or  extensions of credit to, or purchase or own any stock,  bonds,  notes,
debentures or other securities of any Person, except Permitted Investments.

        6.8.  TRANSACTIONS WITH AFFILIATES.  Directly or indirectly,  enter into
any  transaction  or  series  of  transactions  with  or for the  benefit  of an
Affiliate or utilize the collateral in any way for the furtherance of its or any
of its  Affiliates'  personal  business  activities  without  the prior  written
approval of Lender,  except for (i) the Services  Agreement entered into between
Borrower and GST as of September  15, 1997,  an executed  copy of which has been
delivered to Lender,  as the same may be amended from time to time with Lender's
prior written  consent,  and (ii) any other agreement for the provision of goods
or  services  by an  Affiliate  of  Borrower  to  Borrower  or by Borrower to an
Affiliate of Borrower;  PROVIDED  THAT all direct and indirect  fees and charges
thereunder are reasonable and comparable to those available from other providers
of such goods or services or to other customers of Borrower, as the case may be.

                                       35


<PAGE>
        6.9. LOAN PROCEEDS; PROJECT REVENUES. Use, pay, transfer,  distribute or
dispose of any Loan Facility  proceeds in any manner or for any purposes  except
as provided in SECTION  2.1(A)(III) or of any Project  Revenues in any manner or
for any purposes except as provided in SECTION 7.1.

        6.10.  PARTNERSHIPS.   Become  a  general  or  limited  partner  in  any
partnership or a joint venturer in any joint venture.

        6.11. DISSOLUTION.  Liquidate or dissolve, or sell or lease or otherwise
transfer or dispose of all or any  substantial  part of its property,  assets or
business, or combine, merge or consolidate with or into any other entity.

        6.12. AMENDMENTS; CHANGE ORDERS; COMPLETION. Cause, consent to or permit
any amendment,  modification,  variance or waiver of timely  compliance with any
terms or conditions of any Project  Document if it would have a Material Adverse
Effect,  or cancel or terminate  any Operative  Document to which  Borrower is a
party.

        6.13. NAME AND LOCATION; FISCAL YEAR. Change its name or the location of
its principal  place of business  without  notice to Lender at least thirty (30)
days prior to such change, or change its fiscal year without Lender's consent.

        6.14.  ASSIGNMENT.  Assign  its  rights  hereunder  or under  any of the
Operative Documents to any Person.

        6.15. TRANSFER OF OWNERSHIP  INTERESTS.  Cause, make, suffer,  permit or
consent to any sale,  assignment or transfer of any ownership or other  interest
in  Borrower  or any right  thereto,  except  that GSI or any direct or indirect
subsidiary of GSI that is a direct or indirect  parent of Borrower (a "Specified
GSI  Subsidiary")  may  sell  securities  of a  specified  GSI  Subsidiary  in a
transaction  which does not result in the loss of control of such  Specified GSI
Subsidiary  by GSI or a Specified GSI  Subsidiary,  as the case may be ("loss of
control"  includes  the sale or other  transfer  of more than 49% of the  Equity
Securities of such Specified GSI Subsidiary or the rights thereto,  and the loss
of the voting power on the board of directors required to control such Specified
GSI  Subsidiary).  As used  herein,  the  transfer of an  ownership  interest in
Borrower shall include direct and indirect transfers, including sale of stock or
ownership interests or rights thereto in any entity which has a direct ownership
interest in Borrower; PROVIDED THAT the provisions of this sentence shall not be
applicable to the transfer of stock or ownership  interests or rights thereto in
GSI or any corporation the securities of which are publicly held.

        6.16.  ABANDONMENT  OF PROJECT.  Voluntarily  abandon  the  development,
construction, operation, maintenance or repair of the Project.

        6.17.  HAZARDOUS  SUBSTANCE.   Release,   emit  or  discharge  into  the
environment any Hazardous Substances in excess of permitted levels or reportable
quantities  or in  violation  of other  permitted  concentrations,  standards or
limitations under any Hazardous Substance Laws, Legal Requirements or Applicable
Permits.

                                       36


<PAGE>

        6.18. ERISA. Neither Borrower nor any ERISA Affiliate shall (i) adopt or
institute any ERISA Plan,  (ii) take any action which will result in the partial
or complete withdrawal,  within the meanings of sections 4203 and 4205 of ERISA,
from a  Multiemployer  Plan,  (iii) engage or permit any Person to engage in any
transaction  prohibited  by  section  406 of ERISA or  section  4975 of the Code
involving any Employee  Benefit Plan or  Multiemployer  Plan which would subject
either  Borrower or any ERISA  Affiliate to any tax,  penalty or other liability
including a liability to indemnify, (iv) incur or allow to exist any accumulated
funding deficiency (within the meaning of section 412 of the Code or section 302
of  ERISA),  (v)  fail to make  full  payment  when  due of all  amounts  due as
contributions to any Employee  Benefit Plan or Multiemployer  Plan, (vi) fail to
comply  with the  requirements  of section  4980B of the Code or Part 6 of Title
I(B) of ERISA,  or (vii) adopt any amendment to any Employee  Benefit Plan which
would  require  the posting of security  pursuant to section  401(a)(29)  of the
Code,  where  singly or  cumulatively,  the above would have a Material  Adverse
Effect.

                        ARTICLE 7 - APPLICATION OF FUNDS

        7.1. RECEIPTS ACCOUNT AND OPERATING ACCOUNT.

               (a) Borrower has established at Bank of Hawaii,  Honolulu Branch,
ABA No.  121-301-028,  accounts entitled "GST Telecom Hawaii Project -- Receipts
Account" Account No. 01-094-521 (the "RECEIPTS  ACCOUNT) and "GST Telecom Hawaii
Project -- Operating Account" Account No. 80-208-618 (the "OPERATING  ACCOUNT"),
respectively.   Borrower   shall   deposit  all  Project   Revenues   (excluding
Construction  Loan  proceeds  disbursed  by  Lender  directly  to the  Person(s)
entitled  thereto) in the Receipts  Accounts and the Operating  Account shall be
used to pay all Project Costs. On the first Business Day of each month until the
Loan  Facility has been repaid in full,  PROVIDED no Default or Event of Default
has occurred and is  continuing,  Lender will, to the extent funds are available
in the Receipts  Account and are not otherwise  restricted  or designated  for a
different  use or  purpose,  transfer  funds  from the  Receipts  Account at the
following times and in the following order of priority:

                      (i) Monthly, to the Operating Account the amount shown for
such  month on the  applicable  Annual  Operating  Budget,  for the  payment  of
Operation  and  Maintenance  Costs  currently  payable and with respect to which
funds have not already been withdrawn from the Operating Account;

                      (ii) from time to time, to the payment of all fees, costs,
charges and any other amounts due and payable to Lender in connection  with this
Agreement and the other Credit Documents;

                      (iii) at the  times set forth in  SECTION  2.1(E),  to the
payment of interest and principal on the Loan Facility;

                      (iv) on or within  thirty  (30)  days  after the dates set
forth in SECTION 2.1(E) and to the extent  permitted under SECTION 6.6 and after
the establishment of prudent

                                       37


<PAGE>

reserves for any reasonably  anticipated expenses or other items (which shall be
retained in the Operating Account),  to Borrower,  any part of which may be used
by Borrower to pay dividends to its shareholder in an aggregate amount up to the
amount described in SECTION 6.6 and in compliance with applicable law.

Upon repayment in full of all amounts due under this Agreement and  satisfaction
of all Obligations under the Credit Documents, Lender shall disburse any amounts
on deposit in the Receipts Account and the Operating Account to Borrower.

               (b)  Notwithstanding  anything in SECTION 7.1(A) to the contrary,
in lieu of transferring some or all of the amount shown on the applicable Annual
Operating  Budget into the  Operating  Account for the payment of Operation  and
Maintenance  Costs,  Lender may, and Borrower hereby  authorizes  Lender to, pay
some or all of the Operation  and  Maintenance  Costs  directly to the Person(s)
entitled thereto,  and such payment shall discharge PRO TANTO the obligations of
Lender hereunder with respect to such amounts.

               (c) Any of the  payments,  disbursements  or  transfers  of funds
provided for in this SECTION 7.1 may be made  notwithstanding the existence of a
Default or Event of Default if the requirement that there be no existing Default
or Event of Default is waived by Lender in its sole discretion.  Such waiver may
apply to any or all such payments,  disbursements  or transfers of funds and may
apply to payments of a lesser priority without applying to payments of a greater
priority.  (For  example,  such a waiver may apply to payments  of Debt  Service
without necessarily applying to payment of Operation and Maintenance Costs.)

               (d) Operation and Maintenance  Costs payable  pursuant to SECTION
7.1(A)(I) shall not in any event exceed the amounts shown on the approved Annual
Operating  Budget (as it may be revised from time to time as provided in SECTION
5.7(B)).  Borrower  shall  promptly pay all Operation and  Maintenance  Costs in
excess of the foregoing  limit from funds which are otherwise  distributable  to
Borrower  hereunder,  other  unrestricted  funds of  Borrower  or  equity  funds
provided  to  Borrower.  To the extent the  Annual  Operating  Budget is revised
pursuant  to  SECTION  5.7(B),  additional  amounts  may be  transferred  to the
Operating Account as set forth in SECTION 7.1(A).

               (e) Notwithstanding the preceding provisions of this SECTION 7.1,
so long as no Default or Event of Default  has  occurred  and at such time as is
ninety (90) days after any Default or Event of Default has been cured,  PROVIDED
THAT no other  Default or Event of Default  shall have  occurred  in such ninety
(90) day period,  Borrower shall have the right to operate the Receipts  Account
and the Operating  Account  consistent  with the  provisions of this SECTION 7.1
without the direct  control of Lender;  PROVIDED  HOWEVER,  that  Borrower  will
provide Lender with monthly reports on the balances, status and activity of such
accounts,  and PROVIDED FURTHER, that in no event shall any of the funds in such
accounts be used for any purpose in  violation  of the terms and  conditions  of
this Agreement, including without limitation, SECTION 6.6.

                                       38


<PAGE>
        7.2.  APPLICATION OF INSURANCE PROCEEDS.

               (a)  Each of the  parties  hereto  agrees  that all  amounts  and
proceeds  (including  instruments)  in respect of the proceeds of any  insurance
policy required to be maintained by Borrower  hereunder  ("INSURANCE  PROCEEDS")
shall,  except as otherwise  provided in clause (c) below, be paid by the active
insurers directly to Lender (as loss payee or additional  insured as provided in
SECTION 5.14 and SCHEDULE 6), and if paid to Borrower,  such Insurance  Proceeds
shall be received only in trust for Lender, shall be segregated from other funds
of  Borrower,  and  shall be  forthwith  paid over to Lender in the same form as
received (with any necessary  endorsements).  Each of the parties hereto agrees,
to the fullest extent that it effectively  may do so under  applicable law, that
Lender shall apply all such Insurance Proceeds in accordance with the provisions
of SECTIONS 7.2(B) and 7.2(C).

               (b)  Unless  an Event  of  Default  shall  have  occurred  and be
continuing,  any business interruption  Insurance Proceeds received by Lender or
Borrower shall be deposited into the Receipts Account.

               (c) (i) If there  shall  occur any damage or  destruction  of the
Project  with  respect to which  Insurance  Proceeds  for any single loss not in
excess  of  $500,000  are  payable,  such  Insurance  Proceeds  shall be paid to
Borrower  and  applied  to the  prompt  payment  of the  cost of the  repair  or
restoration of such damage or destruction.

                      (ii) If there shall occur any damage or destruction of the
Project with respect to which  Insurance  Proceeds for any single loss in excess
of $500,000 are payable,  Borrower shall promptly notify Lender.  Such Insurance
Proceeds  shall be applied to the prompt repair or restoration of the Project in
accordance with SECTION 7.2(C)(III) to the extent determined by Borrower and, if
Lender determines that such Insurance  Proceeds should be applied to such repair
or  restoration  to a greater extent in order for Borrower to be able to satisfy
its obligations  under the Operative  Documents as well as before such damage or
destruction, to such greater extent.

                      (iii) If there shall occur any damage to or destruction of
the Project with respect to which SECTION  7.2(C)(I) or (II) requires  repair or
restoration and

                             (A) if (1)  such  damage  or  destruction  does not
constitute  the  destruction  of all or  substantially  all of the Project,  (2)
Borrower  and an  independent  engineer  selected  by  Borrower  and  subject to
Lender's approval,  certify,  and Lender determines in its reasonable  judgment,
that  repair or  restoration  of the  Project is  technically  and  economically
feasible within a six (6) month period and that a sufficient  amount of funds is
or will be available to Borrower to make such repairs and restorations,  (3) the
Lender  determines that after repair and restoration the Project will be able to
repay the Loan  Facility  and other  amounts due the Lender as and when due, (4)
after giving effect to any proposed repair and restoration, but only at the time
that the same are  expected  to be made,  such  damage or  destruction  will not
result in an Event of Default or a Default,  (5) Lender shall receive an opinion
of counsel acceptable to Lender to the effect that no material federal, state or
local governmental license,  registration,  recording,  filing, consent, Permit,
order,  authorization,   certificate,  approval,  exemption  or  declaration  is
necessary to proceed with the

                                       39


<PAGE>
repair and restoration  and that no material  amendment to this Agreement or any
of the Credit Documents is necessary (or, if any such is necessary,  Borrower is
reasonably  likely  to be able to  obtain  such as and  when  required)  for the
purpose of subjecting the repairs or restorations to the Liens of the Collateral
Documents,  except  such,  if any, as may be  delivered  to Lender and that such
amendments and other  instruments (if any) have been duly executed and delivered
by and are valid and binding  agreements of Borrower and any other party thereto
and  subject  such  repairs  or  restoration  to the  Liens  of  the  Collateral
Documents,  and (6) Lender shall receive such additional title insurance,  title
insurance endorsements, mechanic's lien waivers, certificates, opinions or other
matters as it may  reasonably  request as necessary or appropriate in connection
with such repairs or restoration or to preserve or protect the Lender's interest
hereunder or in the Collateral, or

                             (B) Lender shall direct  Borrower to undertake  any
repair or  restoration,  then Borrower shall cause any repairs or restoration to
be commenced  and completed  promptly and  diligently at the cost and expense of
Borrower. From time to time after the Lender shall have duly approved the making
of such repairs or  restoration,  and upon  Borrower's  written  request and the
presentation  to Lender of all  documents,  certificates  and  information  with
respect to such Insurance Proceeds as Lender may reasonably request, including a
certificate from Borrower (A) describing in reasonable  detail the nature of the
repairs or restoration,  (B) stating the cost of such repairs or restoration and
the specific  amount  requested to be paid over to or upon the order of Borrower
and that such amount is requested to pay the cost thereof,  (C) stating that the
aggregate amount requested by Borrower in respect of such repairs or restoration
(when added to any other Insurance  Proceeds  received by Borrower in respect of
such  damage  of  destruction)  does  not  exceed  the cost of such  repairs  or
restoration  and that a  sufficient  amount of funds is or will be  available to
Borrower to complete  the  Project,and  (D) stating that no Event of Default has
occurred and is continuing other than an Event of Default  resulting solely from
such damage or  destruction,  then any Insurance  Proceeds (other than Insurance
Proceeds with respect to business  interruption)  held by Lender  arising out of
such  damage  or  destruction  shall,  be paid  over to or at the  direction  of
Borrower to pay for the cost of the repairs or  restoration  in respect of which
such Insurance Proceeds were received to the extent of costs actually incurred.

                      (iv) If, after Insurance Proceeds have been applied to the
repair or  restoration  of the  Project as provided  in  SECTIONS  7.2(C)(I)  or
7.2(C)(II),  Lender  determines  that the  Project  will be able to operate at a
level enabling  Borrower to satisfy its obligations  hereunder as well as before
the damage or destruction,  any excess Insurance Proceeds shall be paid into the
Receipts Account; PROVIDED THAT such excess Insurance Proceeds shall, in lieu of
being paid into the Receipts  Account,  if and to the extent necessary to enable
Borrower  to  satisfy  its  obligations  hereunder  (after  accounting  for  the
prepayment  described  in this  sentence)  as  well as  before  such  damage  or
destruction, be applied to the repayment of the Loan Facility in accordance with
SECTION 2.1(E).

                                       40


<PAGE>
                      (v) If an Event of Default or Default  shall have occurred
and be continuing,  then any provisions of SECTIONS 7.2(C)(I) through 7.2(C)(IV)
to the contrary notwithstanding, the Insurance Proceeds (including any Permitted
Investments made with such proceeds, which shall be liquidated in such manner as
Lender shall deem reasonable and prudent under the circumstances) may be applied
by Lender to curing such Event of Default or  Default.  Any  Insurance  Proceeds
remaining thereafter shall be applied as provided in this SECTION 7.2.

        7.3.  APPLICATION OF EMINENT DOMAIN PROCEEDS.

               (a) All Eminent  Domain  Proceeds shall be paid by the condemning
authority  directly to Lender,  and, if paid to Borrower,  such  Eminent  Domain
Proceeds  shall be received only in trust for Lender,  shall be segregated  from
other funds of Borrower  and shall  forthwith be paid over to Lender in the same
form as received (with any necessary endorsement).

               (b) (i) If the Eminent  Domain  Proceeds with respect to a single
Event of Eminent  Domain not in excess of $500,000 are payable,  Borrower  shall
comply with SECTION  5.16,  and such Eminent  Domain  Proceeds  shall be paid to
Borrower  and applied to the prompt  payment of the cost of the  replacement  or
restoration  of  the  Collateral  if  such   replacement   and   restoration  is
practicable;

                      (ii) If the  Eminent  Domain  Proceeds  with  respect to a
single Event of Eminent Domain in excess of $500,000 are payable, Borrower shall
comply with SECTION 5.15, and such Eminent  Domain  Proceeds shall be applied to
the prompt  replacement  or  restoration  of the  Collateral in accordance  with
SECTION  7.3(B)(III)  to the  extent  determined  by  Borrower  and,  if  Lender
determines  that  such  Eminent  Domain  Proceeds  should  be  applied  to  such
replacement  or restoration to a greater extent in order for Borrower to be able
to satisfy its obligations under the Operative  Documents as well as before such
damage or destruction, to such greater extent.

                      (iii) If there  shall  occur any Event of  Eminent  Domain
with  respect  to  which  SECTION  7.3(C)(I)  or (II)  requires  restoration  or
replacement and

                             (A) if (1) such  Event of Eminent  Domain  does not
constitute the loss of all or substantially all of the Project, (2) Borrower and
an independent  engineer selected by Borrower and subject to Lender's  approval,
certify, and Lender determines in its reasonable  judgment,  that replacement or
restoration of the Project is technically and economically feasible within a six
(6) month period and that a  sufficient  amount of funds is or will be available
to  Borrower  to  make  such  replacements  and  restorations,  (3)  the  Lender
determines  that after  replacement  and restoration the Project will be able to
repay the Loan  Facility  and other  amounts due the Lender as and when due, (4)
after giving effect to any proposed restoration or replacement,  but only at the
time that the same are  expected to be made,  such Event of Eminent  Domain will
not  result in an Event of Default or a  Default,  (5) Lender  shall  receive an
opinion of counsel  acceptable to Lender to the effect that no material federal,
state or local governmental license,  registration,  recording, filing, consent,
Permit, Easement,  order,  authorization,  certificate,  approval,  exemption or
declaration is

                                       41


<PAGE>
necessary to proceed with the  restoration or  replacement  and that no material
amendment to this Agreement or any of the Credit  Documents is necessary (or, if
any such is necessary,  Borrower is reasonably  likely to be able to obtain such
as and when  required) for the purpose of subjecting the restored or replacement
Collateral to the Liens of the Collateral Documents, except such, if any, as may
be delivered to Lender and that such  amendments and other  instruments (if any)
have been duly executed and delivered by and are valid and binding agreements of
Borrower and any other party thereto and subject such replacement or restoration
to the Liens of the  Collateral  Documents,  and (6) Lender  shall  receive such
additional  title  insurance,  title  insurance  endorsements,  mechanic's  lien
waivers, certificates, opinions or other matters as it may reasonably request as
necessary or appropriate in connection  with such  restoration or replacement or
to preserve or protect the Lender's interest hereunder or in the Collateral, or

                             (B) Lender shall direct  Borrower to undertake  any
replacement  or  restoration,  then  Borrower  shall  cause any  replacement  or
restoration  to be commenced and completed  promptly and  diligently at the cost
and  expense of  Borrower.  From time to time  after the Lender  shall have duly
approved the making of such  restoration  or  replacement,  and upon  Borrower's
written request and the  presentation  to Lender of all documents,  certificates
and information with respect to such Insurance Proceeds as Lender may reasonably
request,  including a  certificate  from  Borrower (A)  describing in reasonable
detail the nature of the  replacement  or  restoration,  (B) stating the cost of
such  restoration or replacement  and the specific  amount  requested to be paid
over to or upon the order of Borrower  and that such amount is  requested to pay
the cost thereof, (C) stating that the aggregate amount requested by Borrower in
respect of such  restoration  or  replacement  (when added to any other  Eminent
Domain  Proceeds  received by Borrower in respect of such damage of destruction)
does not exceed the cost of such  repairs or  restoration  and that a sufficient
amount of funds is or will be available to Borrower to complete the  Project,and
(D) stating that no Event of Default has occurred and is  continuing  other than
an Event of Default resulting solely from such Event of Eminent Domain, then any
Eminent  Domain  Proceeds  held by Lender  arising  out of such Event of Eminent
Domain  shall,  be paid over to or at the  direction  of Borrower to pay for the
cost of the  restoration  or  replacement  of the Collateral in respect of which
such  Eminent  Domain  Proceeds  were  received to the extent of costs  actually
incurred.

                      (iv) If, after Eminent  Domain  Proceeds have been applied
to the  restoration  or  replacement  of the  Collateral as provided in SECTIONS
7.3(C)(I)  or  7.3(C)(II),  Lender  determines  that the Project will be able to
operate at a level  enabling  Borrower to satisfy its  obligations  hereunder as
well as before the Event of Eminent  Domain,  any excess Eminent Domain Proceeds
shall be paid into the  Receipts  Account;  PROVIDED  THAT such  excess  Eminent
Domain Proceeds shall, in lieu of being paid into the Receipts  Account,  if and
to the extent necessary to enable Borrower to satisfy its obligations  hereunder
(after  accounting  for the  prepayment  described in this  sentence) as well as
before such Event of Eminent  Domain,  be applied to the  repayment  of the Loan
Facility in accordance with SECTION 2.1(E).

               If Lender so determines that the Project should be restored,  but
no or insufficient replacement property is available for such restoration,  then
such Eminent  Domain  Proceeds shall be applied,  after  acquisition of whatever
necessary replacement property is

                                       42

<PAGE>

available, to the prepayment of the Loan Facility. After Eminent Domain Proceeds
have been  applied to the  restoration  of the Project as provided in the second
previous  sentence or if Lender has determined  that the Project need not or can
not be restored,  any remaining  Eminent  Domain  Proceeds or the entire fund of
Eminent Domain Proceeds,  as the case may be, shall be applied to the prepayment
of the Loan Facility.

                      (v)  Notwithstanding  the  foregoing  provisions  of  this
SECTION 7.3, if an Event of Default shall have occurred and be  continuing,  any
amount to be applied  pursuant to this SECTION  7.3,  shall be paid to Lender as
security for the obligations of Borrower under the Credit Documents,  and may be
held,  applied or  realized  upon by Lender as  provided  herein or in the other
Credit Documents with respect to holding,  applying or realizing upon Collateral
after the  occurrence of an Event of Default.  To the extent any Eminent  Domain
Proceeds  then remain,  at such time  thereafter as no Event of Default shall be
continuing, such amount shall be applied as provided in this SECTION 7.3.

        7.4.  SECURITY  INTEREST  IN  PROCEEDS  AND  ACCOUNTS.  Borrower  hereby
pledges,  assigns and  transfers to Lender on behalf of Lender and grants Lender
on behalf of Lender a security  interest in and to all  Insurance  Proceeds  and
Eminent Domain Proceeds (collectively,  "PROCEEDS") and Accounts as security for
the Loan  Facility and the full and faithful  performance  of all of  Borrower's
obligations  hereunder and under the other Credit Documents.  Borrower shall not
have any rights or powers with  respect to any  Account  except to have funds on
deposit  therein  applied in accordance  with this  Agreement.  Lender is hereby
authorized  to  reduce  to cash any  Permitted  Investment  (without  regard  to
maturity)  in order to make any  application  required  by any  Section  of this
ARTICLE 7 or otherwise pursuant to the Credit Documents.  Upon the occurrence of
an Event of Default,  Lender  shall have all rights and powers  with  respect to
Proceeds as it has with respect to any other  Collateral  and may apply Proceeds
to the payment of interest, principal, fees, costs, charges or other amounts due
or payable to Lender with  respect to the Loan  Facility in such order as Lender
may elect in its sole  discretion.  Borrower shall not have any rights or powers
with respect to Proceeds except as expressly provided in SECTION 7.5.

        7.5. PERMITTED  INVESTMENTS.  All amounts held by Borrower and/or Lender
in the Accounts or as Insurance  Proceeds or Eminent Domain  Proceeds shall only
be invested in Permitted  Investments as directed by and at the expense and risk
of Borrower.

                     ARTICLE 8 - EVENTS OF DEFAULT; REMEDIES

        8.1.  EVENTS OF DEFAULT.

        The occurrence of any of the following  events shall constitute an event
of default ("EVENT OF DEFAULT") hereunder:

               (a)  FAILURE TO MAKE  PAYMENTS.  Borrower  shall fail to pay,  in
accordance  with the terms of this  Agreement,  (i) any  principal on any of the
Loan  Facility on the date that such sum is due, (ii) any interest on any of the
Loan Facility within five (5) days after the date that such sum is due, or (iii)
any other fee, cost, charge or other sum due under the

                                       43

<PAGE>
Credit  Documents within ten (10) days after the date on which written notice is
given to Borrower  pursuant to the  provisions  of SECTION 10.1 that such sum is
due.

               (b) JUDGMENTS.  A judgment or judgments  shall be entered against
Borrower  (i) in the  aggregate  amount of  $250,000  or more  (other than (A) a
judgment  which is fully  covered by insurance or  discharged  within sixty (60)
days after its entry,  or (B) a judgment,  the execution of which is effectively
stayed  within  sixty (60) days  after its entry but only for  thirty  (30) days
after the date on which such stay is  terminated or expires) or (ii) which would
reasonably be expected to materially  impair or inhibit the  construction  of or
Borrower's use or operation of the Project for the purpose for which the Project
was intended or materially  impair the value of the  Collateral or the interests
of the Lender under this Agreement and the other Credit Documents;

               (c)   MISSTATEMENTS;    OMISSIONS.   Any   financial   statement,
representation,  report,  warranty or certificate made or prepared by, under the
control of or on behalf of Borrower and furnished to the Lender pursuant to this
Agreement or any other Credit Document, or in any separate statement or document
to be  delivered to the Lender  hereunder  or under any other  Credit  Document,
shall contain an untrue or misleading statement of a material fact or shall fail
to state a material fact necessary to make the statements therein not misleading
as of the date  made  and as a result  thereof,  there is or is  likely  to be a
Material  Adverse Effect as determined by the Lender,  PROVIDED THAT no Event of
Default shall occur  pursuant  hereto if, within thirty (30) days of the date on
which Borrower  receives notice (from any source) that such untrue or misleading
statement  or failure  to state a material  fact has  occurred,  Borrower  shall
eliminate  or  otherwise  address  to the  satisfaction  of the  Lender any such
Material  Adverse  Effect  relating to such  misleading  statement or failure to
state a material fact.

               (d) BANKRUPTCY;  INSOLVENCY.  Borrower or Borrower's  shareholder
shall institute a voluntary case seeking liquidation or reorganization under the
Bankruptcy Law (or any successor  statute),  or shall consent to the institution
of an  involuntary  case  thereunder  against  it;  or  Borrower  or  Borrower's
shareholder  shall  file a  petition,  answer  or  consent  or  shall  otherwise
institute any similar  proceeding  under any other  applicable  federal or state
law, or shall consent thereto; or Borrower or Borrower's shareholder shall apply
for, or by consent or acquiescence there shall be an appointment of, a receiver,
liquidator,  sequestrator,  trustee or other  officer  with similar  powers,  or
Borrower or Borrower's  shareholder  shall make an assignment for the benefit of
creditors;  or Borrower  or  Borrower's  shareholder  shall admit in writing its
inability to pay its debts  generally  as they become due; or if an  involuntary
case shall be commenced seeking the liquidation or reorganization of Borrower or
Borrower's  shareholder  under the Bankruptcy Law (or any successor  statute) or
any  similar  proceeding  shall be  commenced  against  Borrower  or  Borrower's
shareholder under any other applicable federal or state law and (i) the petition
commencing the involuntary  case is not timely  controverted,  (ii) the petition
commencing the involuntary  case is not dismissed  within sixty (60) days of its
filing,  (iii) an interim  trustee is appointed to take  possession  of all or a
portion of the  property,  and/or to operate all or any part of the  business of
Borrower or Borrower's  shareholder  and such  appointment is not vacated within
sixty (60) days,  or (iv) an order for relief  shall have been issued or entered
therein; or a decree or order of a court having jurisdiction in the premises for
the appointment of a receiver, liquidator,

                                       44

<PAGE>
sequestrator,  trustee or other  officer  having  similar  powers of Borrower or
Borrower's  shareholder or of all or a part of their  property,  shall have been
entered;  or any other  similar  relief  shall be granted  against  Borrower  or
Borrower's shareholder under any applicable federal or state law.

               (e) CROSS DEFAULT. Borrower shall default for a period beyond any
applicable  grace period (i) in the payment of any principal,  interest or other
amount due under any  agreement  involving the borrowing of money or the advance
of  credit  and the  outstanding  amount  or  amounts  payable  under  all  such
agreements  equals or exceeds $250,000 in the aggregate,  or (ii) in the payment
of any amount or  performance of any obligation due under any guarantee or other
agreement  if in  either  case,  pursuant  to such  default,  the  holder of the
obligation  concerned  exercises  its right to  accelerate  the  maturity  of an
indebtedness evidenced thereby which equals or exceeds $250,000.

               (f) ERISA. If Borrower or any ERISA Affiliate  should  establish,
maintain,  contribute to or become obligated to contribute to any ERISA Plan and
(i) a  reportable  event (as  defined  in Section  4043(b) of ERISA)  shall have
occurred  with respect to any ERISA Plan and,  within thirty (30) days after the
reporting of such  reportable  event to Lender by Borrower (or Lender  otherwise
obtaining  knowledge of such event) and the  furnishing of such  information  as
Lender may reasonably  request with respect thereto,  Lender shall have notified
Borrower in writing that Lender has made a  determination  that, on the basis of
such reportable event,  there are reasonable grounds for the termination of such
ERISA Plan by the PBGC or for the appointment by the  appropriate  United States
District  Court of a trustee to  administer  such ERISA Plan;  or (ii) a trustee
shall be appointed by a United States  District  Court to  administer  any ERISA
Plan; or (iii) the PBGC shall institute proceedings to terminate any ERISA Plan;
or (iv) a complete or partial withdrawal by Borrower or any ERISA Affiliate from
any  Multiemployer  Plan shall have occurred,  or any  Multiemployer  Plan shall
enter reorganization status, become insolvent,  or terminate (or notify Borrower
or any ERISA Affiliate of its intent to terminate) under Section 4041A of ERISA;
PROVIDED THAT any of the events  described in this SECTION  8.1(F) shall involve
(A) one or more  ERISA  Plans  that are  single-employer  plans (as  defined  in
Section  4001(a)(15)  of ERISA) and under which the  aggregate  gross  amount of
unfunded  benefit  liabilities  (as  defined in Section  4001(a)(16)  of ERISA),
including vested unfunded  liabilities  which arise or might arise as the result
of the  termination  of  such  ERISA  Plan  or  Plans,  and/or  (B)  one or more
Multiemployer Plans to which the aggregate liabilities of Borrower and all ERISA
Affiliates, shall exceed Five Hundred Thousand Dollars ($500,000).

               (g) BREACH OF  OPERATIVE  DOCUMENTS.  Borrower or any other party
thereto shall breach or default under any term, condition,  provision, covenant,
representation  or warranty  contained in any Credit Document,  Material Project
Document or other  agreement to which  Borrower is a party and Lender shall have
determined  that such breach or default will have a Material  Adverse Effect and
such  breach or default  shall  continue  unremedied  for thirty (30) days after
notice from Lender to Borrower; PROVIDED, HOWEVER, that if the breach or default
cannot be remedied within such thirty (30) days despite  Borrower's  and/or such
other  party's,  as the case may be,  best  efforts  to do so and the  breach or
default is capable of being remedied within a period of ninety (90) days, Lender
will not  unreasonably  withhold its consent to an extension for such additional
period (not to exceed ninety (90) days) as is

                                       45

<PAGE>

reasonably  necessary  beyond such  initial  thirty (30) day period to cure such
breach or default if remedial action is promptly  instituted  within such thirty
(30) day period and is thereafter diligently pursued until the breach or default
is  corrected.  Notwithstanding  the  foregoing,  Borrower's  stockholder  shall
default in the performance of any of its respective obligations under its Pledge
Agreement  and such  default  is not cured  within  five (5) days  after  notice
thereof to such stockholder from Lender.

         (h) BREACH OF TERMS OF AGREEMENT.

                      (i)  Borrower  shall fail to perform or observe any of the
covenants set forth in SECTIONS 5.1, 5.2, 5.4, 5.7, 5.9, 5.11, 5.13, 5.14, 5.15,
or 5.16, SECTIONS 6.1 through 6.18 or ARTICLE 7; or

                      (ii)  Borrower  shall fail to perform or observe any other
covenant  to be  observed  or  performed  by it  hereunder  or under any  Credit
Document and not  otherwise  specifically  provided for in SECTION  8.1(H)(I) or
elsewhere  in SECTION  8.1, and such failure  shall  continue  unremedied  for a
period of thirty  (30) days after  Borrower  becomes  aware  thereof or receives
written notice thereof from Lender,  PROVIDED,  HOWEVER, that if such default is
of a nature such that it cannot  reasonably be cured within such thirty (30) day
period but is susceptible  to cure within a longer  period,  an Event of Default
shall not result therefrom so long as (A) Borrower has,  promptly upon discovery
thereof,  given written notice to Lender of such default (PROVIDED,  that if any
Event of Default is cured within any applicable time period specified herein, or
waived or temporarily  waived by the Lender, the failure alone to give notice of
such Event of Default as provided in this sentence  shall not be deemed an Event
of Default); (B) Borrower as promptly as practicable commences action reasonably
designed to cure such default and continues diligently to pursue such action and
(C) the Lender in its sole  discretion  shall have  determined that such default
does not and will not have a Material Adverse Effect.

                      (i) COMPLETION.  Completion shall not have occurred by the
Construction Loan Maturity Date.

               (j) LOSS OF STATUS.

                      (i) The  CPCN  or the  FCC  License  Agreements  shall  be
revoked or suspended, or

                      (ii)  Borrower  shall  lose its  status  as a  nondominant
interexchange   carrier  under  the   Communications  Act  and  the  regulations
thereunder  and  Lender  determines  in its  discretion,  that such  loss  could
reasonably be anticipated to have a Material Adverse Effect, or

                      (iii) Administrative or judicial proceedings are commenced
by the  PUC or the  FCC  that  could  result  in the  occurrence  of  either  of
subclauses (i) or (ii).

               (k) DEFAULT IN CONSTRUCTION. At any time prior to Completion, the
Project shall be abandoned or work thereon shall cease for a period of more than
thirty (30) days

                                       46

<PAGE>

(which period shall be measured from the first occurrence of a work stoppage and
continuing  until  work  of a  substantial  nature  is  resumed  and  thereafter
diligently continued,  but which period shall not include delays caused by Force
Majeure and  strikes  not  extending  for any one work  stoppage or  abandonment
beyond 30 days so long as an  independent  engineer,  selected by  Borrower  and
subject to Lender's approval,  has certified that Completion is not likely to be
achieved beyond the applicable  Construction  Loan Maturity Date,  PROVIDED THAT
Borrower  gives  Lender  immediate  written  notice of all such  events) for any
reason, or the Project shall not be constructed substantially in accordance with
the Plans and  Specifications  (except as to  changes  therein  approved  by the
Lender or permitted by SECTION 6.12),  or changes shall be made in the Plans and
Specifications  without the prior written  approval of the Lender  (except as to
changes permitted by SECTION 6.12).

               (l) SECURITY. Any of the Collateral Documents,  once executed and
delivered,  shall,  except as the result of the acts or omissions of the Lender,
in any material respect fail to provide the Lender the Liens, security interest,
rights, titles, interest,  remedies, powers or privileges intended to be created
thereby or cease to be in full force and effect,  or the validity thereof or the
applicability  thereof to this  Agreement,  the Loan  Facility,  the Note or any
other  obligations  purported  to be secured or  guaranteed  thereby or any part
thereof  shall be  disaffirmed  or questioned by or on behalf of Borrower or any
other party thereto or there shall occur a default or event of default  (however
defined) under any of the Collateral Documents, such default or event of default
shall not have been cured within thirty (30) days after its  occurrence  and the
Lender  shall  determine  in its sole  discretion  that such default or event of
default could have a Material Adverse Effect.

               (m) LOSS OF OR FAILURE TO OBTAIN  APPLICABLE PERMIT OR APPLICABLE
EASEMENT.  Any  Applicable  Permit or  Applicable  Easement,  including  without
limitation,  submerged  land rights of entry and  easements  with respect to the
undersea fiber optic cable which is part of the Project, necessary for operation
of the Project  shall be revoked or  cancelled  by, or not  obtained  from,  the
issuing agency or other  Governmental  Authority  having  jurisdiction  or other
grantor or  potential  grantor  thereof and within  ninety (90) days  thereafter
Borrower  is not able to  replace  or  reinstate  such  Permit  or  Easement  or
demonstrate  to the  Lender  that loss of or failure  to obtain  such  Permit or
Easement will not have a Material Adverse Effect.

               (n) LOSS OF  COLLATERAL.  Any  substantial  portion of Borrower's
property is seized or  appropriated  without fair value being paid therefor such
as to allow  replacement of such property and/or prepayment of the Loan Facility
as  provided in SECTION 7.3 and to allow  Borrower  in the  Lender's  reasonable
judgment to continue  satisfying its  obligations  hereunder and under the other
Operative Documents.

               (o) FAILURE TO PAY UPFRONT FEES.  Borrower  shall fail to pay the
Upfront Fee in accordance with Section 2.3.

               (p) CLAIMS OR RIGHTS IN BORROWER'S  CAPITAL  STOCK.  GST fails to
hold all of the issued and outstanding  capital stock of Borrower,  or any third
party has the right to any of Borrower's capital stock.

                                       47
<PAGE>
        8.2.  REMEDIES.

        Upon the occurrence and during the  continuation of an Event of Default,
Lender  may,  without  further  notice of  default,  presentment  or demand  for
payment,  protest or notice of  non-payment  or  dishonor,  or other  notices or
demands of any kind, all such notices and demands being waived,  exercise any or
all of the following  rights and remedies,  in any combination or order that the
Lender may elect, in addition to such other rights or remedies as the Lender may
have hereunder, under the Collateral Documents or at law or in equity:

               (a) NO FURTHER LOANS.  Refuse, and Lender shall not be obligated,
to make any additional  Construction Loans or make any payments from any Account
or any  Proceeds or other funds held or  controlled  by Lender  under the Credit
Documents or on behalf of Borrower.

               (b) CURE.  Without any obligation to do so, make disbursements or
Construction  Loans to or on behalf of  Borrower to cure any Event of Default or
Default  hereunder and to cure any default and render any performance  under any
Project Documents as the Lender in its sole discretion may consider necessary or
appropriate,  whether to preserve  and protect the  Collateral  or the  Lender's
interests  therein or for any other reason,  and all sums so expended,  together
with  interest  on such total  amount at the  Default  Rate,  shall be repaid by
Borrower  on demand to Lender,  and shall be  secured  by the Credit  Documents,
notwithstanding that such expenditures may, together with amounts advanced under
this Agreement, exceed the amount of the Committed Amount.

               (c)  ACCELERATION.  Declare  and  make all  sums of  accrued  and
outstanding  principal  and accrued  but unpaid  interest  remaining  under this
Agreement together with all unpaid fees, costs (including Liquidation Costs) and
charges due hereunder or under any other Credit  Document,  immediately  due and
payable.

               (d) CASH  COLLATERAL.  Subject to SECTION 10.2,  apply or execute
upon any amounts on deposit in any Account or any Proceeds or Borrower Equity or
any other  moneys of Borrower on deposit  with Lender in the manner  provided in
the Uniform  Commercial  Code and other  relevant  statutes  and  decisions  and
interpretations thereunder with respect to cash collateral.

               (e) POSSESSION OF PROJECT.  Enter into  possession of the Project
and  perform  any and all work and  labor  necessary  to  complete  the  Project
substantially   according  to  the  Construction  Contract  and  the  Plans  and
Specifications  or to operate,  maintain  and repair the  Project,  and all sums
expended by Lender in so doing,  together  with interest on such total amount at
the Default Rate, shall be repaid by Borrower to Lender upon demand and shall be
secured by the Credit  Documents,  notwithstanding  that such  expenditures may,
together with amounts  advanced under this  Agreement,  exceed the amount of the
Total Construction Loan Commitment.

               (f) REMEDIES UNDER CREDIT DOCUMENTS.  Exercise any and all rights
and remedies available to it under any of the Credit Documents, including making
demand for

                                       48

<PAGE>

payment under any judicial or non-judicial foreclosure or public or private sale
of any of the Collateral pursuant to the Collateral Documents.

                          ARTICLE 9 - ASSIGNMENTS, ETC.

        9.1.  ASSIGNMENTS.

        Lender may in accordance with  applicable  law, after giving  reasonable
notice to  Borrower,  sell and assign to one or more parties  (individually,  an
"ASSIGNEE") all or a portion of its rights and obligations  under this Agreement
and the other Credit  Documents  (such a sale and  assignment  to be referred to
herein as an  "ASSIGNMENT")  pursuant to an assignment  agreement in the form of
EXHIBIT Q (an "ASSIGNMENT AGREEMENT"),  executed by each Assignee and Lender (as
"ASSIGNOR") PROVIDED, HOWEVER, that Lender shall not assign more than forty-nine
percent (49%) of its rights or obligations hereunder or assign any of its rights
or  obligations  hereunder to a competitor of Borrower or a Person who is or has
been engaged in a dispute with Borrower; PROVIDED FURTHER, that upon notice that
Lender  intends to assign any part of its  interest  hereunder,  Borrower  shall
promptly  provide Lender with a list of its  competitors  and those Persons with
which it has, or has had, disputes. Upon the execution, delivery, acceptance and
recording of each Assignment Agreement,  from and after the Assignment Effective
Date  determined  pursuant  to such  Assignment  Agreement,  (A)  each  Assignee
thereunder shall be a Lender  hereunder with a Proportionate  Share as set forth
on ATTACHMENT 1 to such Assignment  Agreement and shall have the rights,  duties
and  obligations of Lender under this Agreement and the other Credit  Documents,
and (B) the Assignor  thereunder shall be a Lender with a Proportionate Share as
set forth on ATTACHMENT 1 to such Assignment Agreement, or, if the Proportionate
Share of the Assignor  has been reduced to 0%, the Assignor  shall cease to be a
Lender. On or prior to the Assignment Effective Date determined pursuant to each
Assignment  Agreement,  Borrower,  at its expense,  shall execute and deliver to
Lender  in  exchange  for  the  respective  surrendered  Note  of  the  Assignor
thereunder,  a new Note to the order of each Assignee  thereunder (with each new
Note to be in an amount equal to the Committed  Amount assumed by such Assignee)
and, if the Assignor has retained a Committed  Amount  hereunder,  a new Note to
the order of the  Assignor  (with  the new Note to be in an amount  equal to the
Committed  Amount retained by it). Each such new Note shall be dated the Closing
Date and each such new Note shall  otherwise be in the form of the Note replaced
thereby.  The Note  surrendered  by the Assignor  shall be returned by Lender to
Borrower marked "cancelled".

        9.2.  CONFIDENTIALITY.  Lender may disclose the Credit Documents and any
financial or other information relating to Borrower to any potential Assignee.

        9.3. SECURITIES LAWS.  Notwithstanding the foregoing  provisions of this
ARTICLE 9, no sale,  assignment,  transfer,  negotiation or other disposition of
the interests of Lender  hereunder or under the other Credit  Documents shall be
allowed if it would violate the  Securities Act of 1933, as amended (the "Act"),
or would require  registration  under the Act, any other federal securities laws
or  regulations  or  the  securities  laws  or  regulations  of  any  applicable
jurisdiction.  Borrower  shall,  from time to time at the request and expense of
Lender, execute and deliver to Lender, or to such party or parties as Lender may
designate,

                                       49
<PAGE>

any and all further instruments as may in the opinion of Lender be necessary or
advisable to give full force and effect to such disposition.

                           ARTICLE 10 - MISCELLANEOUS

        10.1.  NOTICES.  All  notices,  notifications  and other  communications
required  or  permitted  by this  Agreement  shall be in  writing  and  shall be
delivered by hand, telegraphically  transmitted,  sent by facsimile (with a copy
sent by overnight  mail),  or mailed by overnight  courier to the parties at the
following  addresses (or such other address for a party as shall be specified by
notice given pursuant hereto):

               If to Lender:         TM Communications Hawaii LLC
                                     c/o Tomen America Inc.
                                     1285 Avenue of the Americas
                                     New York, NY  10019
                                     Attn:  Daizo Nakano
                                     Facsimile No. (212) 397-3351

               with a copy to:       Orrick, Herrington & Sutcliffe LLP
                                     400 Sansome Street
                                     San Francisco, CA 94111
                                     Attn: Michael R. Meyers
                                     Facsimile No. (415) 773-5759

               If to Borrower:       GST Telecom Hawaii, Inc.
                                     4317 NE Thurston Way
                                     Vancouver, WA 98662
                                     Attn:  John Warta, Chief Executive Officer
                                     Facsimile No. (360) 260-2075

               with a copy to:       Olshan Grundman Frome & Rosenzweig, LLP
                                     505 Park Avenue
                                     New York, NY  10022
                                     Attn:  Stephen Irwin
                                     Facsimile No. (212) 755-1467

        Notices  delivered  by  hand,  telegraphically  transmitted,  or sent by
facsimile  shall be deemed  given  the day so  delivered,  transmitted  or sent.
Notices delivered or mailed as provided herein shall be deemed given on the date
of actual receipt.  Failure to deliver a copy of a notice to counsel for a party
as provided above shall not constitute failure to give notice hereunder.  Notice
so  given  shall  be  effective  upon  receipt  by the  addressee,  except  that
communication  or notice so  transmitted  by  telecopy or other  direct  written
electronic  means shall be deemed to have been validly and effectively  given on
the day (if a Business Day and, if not, on the next  following  Business Day) on
which it is transmitted if transmitted  before 4 p.m.,  recipient's time, and if
transmitted  after that time,  on the next  following  Business  Day;  PROVIDED,
HOWEVER, that if any notice is tendered to an addressee and the

                                       50

<PAGE>
delivery  thereof is refused by such  addressee,  such notice shall be effective
upon such  tender.  Any party  shall  have the right to change its  address  for
notice  hereunder to any other location within the continental  United States by
giving of thirty (30) days' notice to the other  parties in the manner set forth
hereinabove.

        10.2. ADDITIONAL SECURITY;  RIGHT TO SET-OFF. Any deposits or other sums
at any time credited or due from Lender and any Project Revenues,  securities or
other  property  of  Borrower  in the  possession  of Lender may at all times be
treated as  collateral  security  for the payment of amounts due with respect to
the Loan Facility and the Note and all other  obligations  of Borrower to Lender
under this Agreement and the other Credit Documents, and Borrower hereby pledges
to Lender for the benefit of the Lender and grants Lender a security interest in
and to all such deposits, sums, securities or other property.  Regardless of the
adequacy of any other collateral, Lender and ONLY Lender, may execute or realize
on the Lender's security interest in any such deposits or other sums credited by
or due from Lender to Borrower,  may apply any such deposits or other sums to or
set them off against  Borrower's  obligations  to Lender under the Note and this
Agreement at any time after the  occurrence  and during the  continuance  of any
Event of Default.

        10.3.  DELAY AND WAIVER.  No delay or  omission  to exercise  any right,
power or remedy  accruing  to the  Lender  upon the  occurrence  of any Event of
Default or Default or any breach or default of Borrower  under this Agreement or
any other Credit  Document  shall impair any such right,  power or remedy of the
Lender,  nor shall it be construed to be a waiver of any such breach or default,
or an acquiescence therein, or of or in any similar breach or default thereafter
occurring, nor shall any waiver of any single Event of Default, Default or other
breach or default be deemed a waiver of any other Event of  Default,  Default or
other breach or default theretofore or thereafter occurring. Any waiver, permit,
consent or approval of any kind or  character on the part of Lender of any Event
of Default, Default or other breach or default under this Agreement or any other
Credit  Document,  or any  waiver  on the part of  Lender  of any  provision  or
condition of this Agreement or any other Credit Document, must be in writing and
shall be effective  only to the extent in such writing  specifically  set forth.
All remedies, either under this Agreement or any other Credit Document or by law
or otherwise afforded to Lender, shall be cumulative and not alternative.

        10.4. COSTS,  EXPENSES AND ATTORNEYS' FEES.  Borrower will pay to Lender
on demand (a) all reasonable  out-of-pocket costs, fees and expenses,  including
reasonable  attorneys' fees and expenses,  incurred by Lender in connection with
the  enforcement or protection  (or attempted  enforcement or protection) of any
rights or remedies of Lender under this  Agreement or any other Credit  Document
and (b) the reasonable  fees,  expenses and  disbursements  of any  engineering,
environmental,  insurance,  construction or other consultants to Lender incurred
in connection with any of the foregoing.

        10.5.  ATTORNEY-IN-FACT.

               (a) For the purpose of allowing Lender to exercise the rights and
remedies  provided  in  ARTICLE  8,  following  the  occurrence  and  during the
continuation of an Event of Default,  Borrower  hereby  constitutes and appoints
Lender its true and lawful attorney-in-fact,

                                       51

<PAGE>

with full power of  substitution,  to complete  any or all of the Project in the
name of Borrower, and hereby empowers such attorney or attorneys as follows:

                      (i) To use any  unadvanced  proceeds  of the  Construction
Loans  and  any  Borrower  Equity  for the  purpose  of  completing,  operating,
maintaining  and  repairing any or all of the Project and to perform any and all
of Borrower's obligations under the Project Documents;

                      (ii) To make such changes and corrections in the Plans and
Specifications or the operating and maintenance  practices and procedures of the
Project as they consider reasonably  necessary or desirable to complete the work
on any or all of the Project in  substantially  the manner  contemplated  by the
Construction Contracts;

                      (iii) To employ such contractors,  subcontractors, agents,
architects,  inspectors  and other Persons as  reasonably  shall be required for
such purposes;

                      (iv) To pay,  settle or  compromise  all bills and  claims
which may be or become  liens or  security  interests  against any or all of the
Project or the Collateral,  or any part thereof, unless a bond or other security
satisfactory to Lender has been provided;

                      (v) To execute  applications  and certificates in the name
of Borrower  which  reasonably  may be required by the Credit  Documents  or any
other  agreement  or  instrument  executed by Borrower  in  connection  with the
Project;

                      (vi) To prosecute and defend all actions or proceedings in
connection  with the Project or the  Collateral  or any part thereof and to take
such action and require such  performance as Lender  reasonably  deems necessary
under any performance and payment bond or the Credit Documents;

                      (vii) To do any and every act which  Borrower  might do on
its behalf with respect to the  Collateral  or any part thereof or any or all of
the Project and to exercise any or all of Borrower's  rights and remedies  under
any or all of the Project Documents; and

                      (viii) To use any funds in any Account to pay  interest or
principal  with  respect to the Loan  Facility or fees and other  amounts due to
Lender, as they may be due from time to time or, to pay Project Costs.

               (b) The powers of attorney  set forth in this  SECTION 10.5 shall
be deemed to be powers coupled with interests and shall be irrevocable.

        10.6. ENTIRE AGREEMENT; AMENDMENTS AND MODIFICATIONS. This Agreement and
any agreement,  document or instrument  attached hereto as exhibits or schedules
or  otherwise  or  referred  to herein  integrate  all the terms and  conditions
mentioned  herein or incidental  hereto and supersede all oral  negotiations and
prior  writings,  in respect to the subject matter  hereof.  In the event of any
conflict between the terms,  conditions and provisions of this Agreement and any
such agreement,  document or instrument, the terms, conditions and provisions of
this Agreement shall prevail. This Agreement and the other Credit Documents

                                       52
<PAGE>

may only be amended or modified by an instrument in writing  signed by Borrower,
Lender and any other parties to be charged or as set forth in SECTION 9.1.

        10.7.  GOVERNING  LAW. This  Agreement,  and any instrument or agreement
required hereunder (to the extent not expressly provided for therein),  shall be
governed  by, and  construed  under,  the laws of the State of New York  without
reference to conflicts of law rules.

        10.8. SEVERABILITY.  In case any one or more of the provisions contained
in this Agreement  should be invalid,  illegal or  unenforceable in any respect,
the validity,  legality and enforceability of the remaining provisions shall not
in any way be affected or impaired thereby.

        10.9. HEADINGS.  Paragraph headings have been inserted in this Agreement
as a  matter  of  convenience  for  reference  only  and  are not a part of this
Agreement and shall not be used in the  interpretation  of any provision of this
Agreement.

        10.10.  ACCOUNTING TERMS. All accounting terms used in this Agreement or
in any  other  Credit  Document  shall  be  construed,  and all  accounting  and
financial  computations,   hereunder  or  thereunder,   shall  be  computed,  in
accordance with GAAP.

        10.11.  NO  PARTNERSHIP;  ETC. The Lender and  Borrower  intend that the
relationship  between them shall be solely that of creditor and debtor.  Nothing
contained in this  Agreement,  the Note or in any of the other Credit  Documents
shall be deemed or construed to create a partnership,  tenancy-in-common,  joint
tenancy,  joint venture or co-ownership by or between the Lender and Borrower or
any other Person.  The Lender shall not be in any way  responsible or liable for
the debts,  losses,  obligations  or duties of Borrower or any other Person with
respect to the Project or  otherwise.  All  obligations  to pay real property or
other taxes,  assessments,  insurance  premiums,  and all other fees and charges
arising from the ownership, operation or occupancy of the Project and to perform
all obligations and other agreements and contracts relating to the Project shall
be the sole responsibility of Borrower.

        10.12.  LIMITATION ON LIABILITY. No claim shall be made by Borrower, any
shareholder of Borrower or sponsor or any of their Affiliates against the Lender
or any of their Affiliates,  directors,  employees,  attorneys or agents for any
special, indirect, consequential or punitive damages in respect of any breach or
wrongful conduct  (whether or not the claim therefor is based on contract,  tort
or duty  imposed  by law),  in  connection  with,  arising  out of or in any way
related  to the  transactions  contemplated  by  this  Agreement  or  the  other
Operative  Documents  or any act or omission or event  occurring  in  connection
therewith;  and Borrower hereby waives,  releases and agrees not to sue upon any
such claim for any such damages, whether or not accrued and whether or not known
or suspected to exist in its favor.

        10.13.  WAIVER OF JURY TRIAL. THE LENDER AND BORROWER HEREBY  KNOWINGLY,
VOLUNTARILY, AND INTENTIONALLY WAIVE ANY RIGHTS THEY MAY HAVE TO A TRIAL BY JURY
IN RESPECT OF ANY  LITIGATION  BASED  HEREON,  OR ARISING OUT OF,  UNDER,  OR IN
CONNECTION WITH,

                                       53
<PAGE>

THIS AGREEMENT OR ANY OTHER CREDIT DOCUMENT, OR ANY COURSE OR CONDUCT, COURSE OF
DEALING,  STATEMENTS  (WHETHER  VERBAL OR WRITTEN),  OR ACTIONS OF THE LENDER OR
BORROWER.  THIS PROVISION IS A MATERIAL  INDUCEMENT FOR THE LENDER TO ENTER INTO
THIS AGREEMENT.

        10.14.  CONSENT TO  JURISDICTION.  The Lender and  Borrower  agree that,
except as may otherwise be required by law, any legal action or proceeding by or
against Borrower or with respect to or arising out of this Agreement,  the Note,
or any other  Credit  Document may be brought in or removed to the courts of the
State of New York sitting in New York City,  or of the United  States of America
for the Southern  District of New York,  as Lender may elect.  By execution  and
delivery of this Agreement,  Lender and Borrower  accept,  for themselves and in
respect of their property,  generally and  unconditionally,  the jurisdiction of
the aforesaid courts.  Lender and Borrower irrevocably consent to the service of
process out of any of the aforementioned courts in any such action or proceeding
by the mailing of copies  thereof by  registered or certified  airmail,  postage
prepaid,  to  Lender  or  Borrower,  as the  case may be,  at  their  respective
addresses  for  notices  as  specified  herein  and that such  service  shall be
effective five (5) Business Days after such mailing. Nothing herein shall affect
the right to serve process in any other manner  permitted by law or the right of
Lender to bring legal action or proceedings in any other competent jurisdiction,
including  judicial or non-judicial  foreclosure of a mortgage.  Notwithstanding
the foregoing, service of process shall not be deemed mailed (i) to Lender until
a copy of all  matters to be served  have been  mailed to Orrick,  Herrington  &
Sutcliffe LLP, 400 Sansome Street, San Francisco,  California 94111,  Attention:
Michael R. Meyers,  Esq. or such other Person as Lender may hereafter  designate
by notice given pursuant to SECTION 10.1 or (ii) to Borrower until a copy of all
matters to be served have been mailed to Olshan,  Grundman,  Frome & Rosenzweig,
LLP, 505 Park Avenue, New York, New York 10022,  Attention:  Stephen Irwin, Esq.
or such  other  Person as  Borrower  may  hereafter  designate  by notice  given
pursuant to SECTION 10.1.  Lender and Borrower  further agree that the aforesaid
courts of the State of New York and of the United  States of America  shall have
exclusive  jurisdiction  with respect to any claim or  counterclaim  of Borrower
based upon the assertion that the rate of interest charged by Lender on or under
this Agreement, the Loan Facility and/or the other Credit Documents is usurious.
Lender and  Borrower  hereby  waive any right to stay or  dismiss  any action or
proceeding under or in connection with any or all of the Project, this Agreement
or any other Credit Document brought before the foregoing courts on the basis of
FORUM NON-CONVENIENS.

        10.15.  USURY.  Nothing contained in this Agreement or the Note shall be
deemed to require the  payment of  interest or other  charges by Borrower or any
other Person in excess of the amount  which Lender or other  holders of the Note
("Note  Holders") may lawfully  charge under any  applicable  usury laws. In the
event  that  Lender or other  Note  Holders  shall  collect  moneys  under  this
Agreement,  the Note or any other Credit Document which are deemed to constitute
interest which would increase the effective interest rate to a rate in excess of
that  permitted  to be  charged  by  applicable  law,  all such  sums  deemed to
constitute  interest in excess of the legal rate shall, upon such determination,
at the  option of Lender or other Note  Holders,  be  returned  to  Borrower  or
credited against the principal balance of the Note then outstanding.

                                       54
<PAGE>

        10.16. SUCCESSORS AND ASSIGNS. The provisions of this Agreement shall be
binding upon and inure to the benefit of the parties hereto and their respective
successors and assigns. Borrower may not assign or otherwise transfer any of its
rights under this Agreement without the prior written consent of Lender.

        10.17.  COUNTERPARTS.  This  Agreement  may be  executed  in one or more
duplicate counterparts and when signed by each of the parties listed below shall
constitute a single binding agreement.

                                     * * * *

                                       55


<PAGE>



        IN WITNESS  WHEREOF,  the parties have caused this  Agreement to be duly
executed by their  officers  thereunto  duly  authorized  as of the day and year
first above written.

                            GST TELECOM HAWAII, INC.,
                            a Hawaii corporation,
                            as Borrower

                            By: /s/ Clifford V. Sander
                               ------------------------------------
                               Name:  Clifford V. Sander
                               Title: Vice President

                          TM Communications Hawaii LLC,
                          a Delaware limited liability company
                          as Lender

                          By: /s/ Daizo Nakano
                              ------------------------------------
                          Name:    Daizo Nakano
                          Title:   Vice President

                                       56

<PAGE>

                                                                       EXHIBIT A

                                   DEFINITIONS

               "ACCOUNT  DEBTOR"  has the meaning  given in SECTION  5(C) of the
Security Agreement.

               "ACCOUNT  SECURITY  AGREEMENT"  has the meaning  given in SECTION
2.7(A) of the Credit Agreement.

               "ACCOUNTS" means the Receipts Account and the Operating Account.

               "ACT" means the U.S. federal Securities Act of 1933, as amended.

               "ADDITIONAL  PROJECT  DOCUMENTS"  means  any other  contracts  or
agreements related to the construction,  testing, maintenance, repair, operation
or use of the Project  entered into by Borrower and any other Person  subsequent
to the Closing Date.

               "AFFILIATE"  has the  meaning  set  forth  in Rule  12b-2  of the
regulations  under the  Securities  Exchange Act of 1934,  as amended  PROVIDED,
HOWEVER,  that in no case shall Lender or any of its  Affiliates be deemed to be
Affiliates of Greenstar.

               "ALTERNATE  INTEREST RATE" means a fluctuating  per annum rate of
interest  as shall be in effect  from time to time which rate shall at all times
be equal to the Federal Funds Rate PLUS three  percent  (3%).  Any change in the
Alternate  Interest  Rate due to a change in the  Federal  Funds  Rate  shall be
effective as of the effective date of such change in such Federal Funds Rate.

               "ALTERNATE  INTEREST  RATE  LOAN"  means any  portion of the Loan
Facility  converted  pursuant to SECTION  2.5(A) of the Credit  Agreement into a
loan at the Alternate Interest Rate.

               "AMEX" means the American Stock Exchange.

               "ANNUAL  OPERATING BUDGET" means, with respect to any fiscal year
of Borrower, an annual operating budget setting forth all reasonably anticipated
Project Revenues, Debt Service,  Operation and Maintenance Costs, allowances for
reserves,  and information  described in SECTION 5.7(B) of the Credit Agreement.
"Annual Operating Budget" includes the First Annual Operating Budget.

               "APPLICABLE EASEMENT" means any Easement that is necessary at any
given time in light of the stage of  development,  construction  or operation of
the  Project to  construct,  test,  operate,  maintain,  repair,  own or use the
Project as contemplated by the Operative Documents,  to enter into any Operative
Document or to consummate any transaction contemplated thereby.

                                       A-1

<PAGE>

               "APPLICABLE  PERMIT"  means any  Permit,  including  any  zoning,
environmental  protection,  pollution,  sanitation,  FCC, PUC, safety,  sitting,
building or other  Permit,  (a) that is  necessary at any given time in light of
the stage of development, construction or operation of the Project to construct,
test, operate,  maintain,  repair, own or use the Project as contemplated by the
Operative  Documents,  to enter into any Operative Document or to consummate any
transaction  contemplated  thereby,  or (b) that is  necessary  so that  neither
Borrower nor any  Affiliate  may be deemed by any  Governmental  Authority to be
subject to regulation  under the  Communications  Act or under any state laws or
regulations as a result of the construction and operation of the Project.

               "ASSIGNED  AGREEMENT" has the meaning given in SECTION 2(D)(I) of
the Security Agreement.

               "ASSIGNEE"  has the  meaning  given in SECTION  9.1 of the Credit
Agreement.

               "ASSIGNMENT"  has the meaning  given in SECTION 9.1 of the Credit
Agreement.

               "ASSIGNMENT  AGREEMENT"  has the meaning  given in SECTION 9.1 of
the Credit Agreement.

               "ASSIGNOR"  has the  meaning  given in SECTION  9.1 of the Credit
Agreement.

               "BANKRUPTCY  LAW" means Title 11 of the United  States Code,  and
any other state or federal insolvency, reorganization, moratorium or similar law
for the relief of debtors.

               "BASE CASE PROJECT  PROJECTION"  means a projection  of operating
results  for the  Project  over a period  ending no  sooner  than five (5) years
beyond the Expected Completion Date, showing at a minimum Borrower's  reasonable
good faith estimates,  as of the applicable Closing Date, of revenue,  operating
expenses, debt service coverage ratios and sources and uses of revenues over the
forecast period,  which projection shall be delivered at the applicable  Closing
Date.

               "BORROWER" means GST Telecom Hawaii, Inc., a Hawaii corporation.

               "BORROWER  EQUITY" means any  non-borrowed  funds  contributed by
Borrower,  or any shareholder of Borrower on behalf of Borrower,  toward Project
Costs.

               "BUSINESS  DAY"  means any day other than a  Saturday,  Sunday or
other day on which banks are authorized to be closed in Honolulu,  Hawaii or New
York, New York and, with respect to the  determination  of the LIBOR Rate, which
is also a day on which dealings in Dollar deposits are carried out in the London
interbank market.

               "CAPITAL  CONTRIBUTION"  means the  contribution to capital to be
made  prior  to the  Closing  as set  forth  in  SECTION  3.1(H)  of the  Credit
Agreement.

                                       A-2

<PAGE>

               "CHANGE OF  CONTROL"  means any of the  following:  (i) the sale,
lease,  conveyance  or other  disposition  of assets of the  Borrower  valued in
excess of $5,000,000;  (ii) the liquidation or dissolution of the Borrower;  and
(iii) any transaction or series of  transactions  that results in GSI ceasing to
hold and control,  directly or  indirectly,  fifty  percent (50%) or more of the
Equity Securities of Borrower.

               "CHANGE OF LAW" has the  meaning  given in SECTION  2.5(B) of the
Credit Agreement.

               "CHARTER  DOCUMENTS" means, as to any Person other than a natural
person, the charter,  certificate or articles of incorporation,  bylaws or other
organizational or governing documents of such Person, including, with respect to
a  partnership,   a  partnership   agreement  and  any  certificate  of  limited
partnership or similar document.

               "CLOSING  DATE"  means  the  date  when  each  of the  conditions
precedent  listed in SECTION 3.1 of the Credit  Agreement has been satisfied (or
waived in writing by Lender).

               "CODE"  means the  Internal  Revenue  Code of 1986,  as  amended.
Reference to a specific  section of the Code shall include any valid  regulation
promulgated  thereunder,  and any comparable provision of any future legislation
amending, supplementing or superseding such section.

               "COLLATERAL"  means  all  real  and  personal  property  which is
subject or is or is intended to become subject to the security interests or lien
granted by any of the Collateral Documents.

               "COLLATERAL  DOCUMENTS" means the Pledge Agreement,  the Security
Agreement,  the  GST  Security  Agreement,  the  Consents,  the  Net  Cash  Flow
Agreement,  the Net Cash Flow Account Pledge Agreement, and the other agreements
to be entered  into  pursuant  to  SECTION  5.17 of the  Credit  Agreement,  the
Construction  Deeds of Trust, the Intercreditor and Subordination  Agreements to
be entered into pursuant to SECTION 3.1(A), and any financing statements and the
like filed or recorded in connection with the foregoing.

               "COLLOCATION  AGREEMENTS" means the agreements entered into or to
be entered into between  Borrower and local  exchange  carriers  with respect to
physical or virtual collocation with respect to the Project.

               "COMMITTED  AMOUNT"  means Forty Million Five Hundred Sixty Three
Thousand Dollars ($40,563,000).

               "COMMUNICATIONS  ACT"  means the  Communication  Act of 1934,  as
amended.

               "COMPLETION" means, with respect to the Project, that the Project
shall have been  substantially  completed in all material  respects and that all
work under the Construction Contracts shall have occurred and that completion of
all such work shall have been in  accordance  with the Plans and  Specifications
and the requirements of all Applicable Permits for the Project.

                                       A-3

<PAGE>

               "COMPLETION DATE" means, with respect to the Project, the earlier
of: (i) the date of Completion of the Project, and (ii) August 15, 1998.

               "CONSENTS"  shall  mean a consent  executed  by each party to the
Project  Documents (other than Lender) in substantially the form of EXHIBIT M-1,
M-2 or M-3 hereto, as applicable.

               "CONSTRUCTION  CONTRACTS"  means the Hawaii Island Fibernet Cable
System  Contract  between  GST  International,  Inc.  (subsequently  assigned to
Borrower)  and AT&T  Submarine  Systems,  Inc.,  dated as of May 21,  1996;  the
Agreement between GST Telecom, Inc. and Simplicity  Communications,  Inc., dated
as of September  30,  1996,  the Contract  between  Bell  Atlantic  Professional
Services,  Incorporated  and  Borrower,  dated  as  of  October  30,  1996,  the
Professional Services Agreement between R.M. Towill, Inc. and GST Telecom, Inc.,
effective as of November 28, 1995, and the other  Construction  Agreements to be
entered into with  respect to the  construction  of the Project,  subject to the
terms and conditions of the Credit Agreement.

               "CONSTRUCTION  DEEDS  OF  TRUST"  shall  mean  the  Mortgage  and
Financing  Statement  and  Absolute  Assignment  of Rents  and  Fixture  Filings
(Construction  Mortgage) filed in connection with the Closing,  in substantially
the form of EXHIBIT I.

               "CONSTRUCTION LOAN" has the meaning given in SECTION 2.1(A)(I) of
the Credit Agreement.

               "CONSTRUCTION LOAN AVAILABILITY PERIOD" means with respect to the
Project  the period from the Closing  Date to the earlier of  Completion  or the
Construction Loan Maturity Date.

               "CONSTRUCTION  LOAN  BORROWING"  means a  borrowing  by  Borrower
consisting of a Construction Loan made by the Lender.

               "CONSTRUCTION LOAN MATURITY DATE" shall mean, with respect to the
Project, the date which is one year after the Closing Date.

               "CONTRACTORS"  means AT&T Submarine Systems,  Inc., Bell Atlantic
Professional  Services,  Incorporated,  Simplicity  Communications,  Inc.,  R.M.
Towill and such other contractors as may be selected by Borrower and approved by
Lender.

               "CPCN" means the Certificate of Public  Convenience and Necessity
Granted to Borrower by the PUC on February 12, 1986, as amended.

               "CREDIT   AGREEMENT"  means  the  Credit  Agreement   between  TM
Communications Hawaii LLC (as lender) and GST Telecom Hawaii, Inc. (as borrower)
dated September 30, 1997.

               "CREDIT  DOCUMENTS"  means the Credit  Agreement,  the Note,  the
Collateral Documents and the Consents.

                                       A-4

<PAGE>

               "CREDIT EVENT" means the making of any Construction  Loan and any
other extension of credit hereunder.

               "DEBT" of any Person at any date means, without duplication,  (a)
all obligations of such Person for borrowed  money,  (b) all obligations of such
Person evidenced by bonds, debentures,  notes or other similar instruments,  (c)
all obligations of such Person to pay the deferred purchase price of property or
services,  except  trade  accounts  payable  arising in the  ordinary  course of
business,  (d) all  obligations  of such Person under leases which are or should
be, in accordance with GAAP, recorded as capital leases in respect of which such
Person is liable, (e) all obligations of such Person to purchase  securities (or
other property) which arise out of or in connection with the sale of the same or
substantially similar securities (or property),  (f) all deferred obligations of
such Person to reimburse  any bank or other Person in respect of amounts paid or
advanced  under a letter of credit or other  instrument,  (g) all Debt of others
secured  by a Lien on any  asset of such  Person,  whether  or not such  Debt is
assumed  by such  Person  and (h) all  Debt of  others  guaranteed  directly  or
indirectly  by  such  person  or as to  which  such  Person  has  an  obligation
substantially the economic equivalent of a guarantee.

               "DEBT   SERVICE"   means  for  any  Person  and  any  period  all
Obligations  for principal and interest  payments on Debt of such Persons due in
such period.

               "DEFAULT"  means any  occurrence,  circumstance  or event, or any
combination thereof,  which, with the lapse of time and/or the giving of notice,
would constitute an Event of Default.

               "DEFAULT  RATE"  means an  interest  rate per annum  equal to the
interest rate then in effect on the Loan  Facility PLUS three percent (3%).  All
computations  of interest  with  respect to the Default Rate shall be based on a
year of 360 days and actual days elapsed.

               "DEPOSITARY  BANK" has the meaning  given in SECTION  8(B) of the
Security Agreement.

               "DEVELOPMENT  COMPANIES" means  corporations  which are direct or
indirect subsidiaries of GSI and/or GST which will develop the Network Projects.

               "DOLLARS"  and "$" means  United  States  dollars or such coin or
currency  of the United  States of  America  as at the time of payment  shall be
legal tender for the payment of public and private debts in the United States of
America.

               "DRAWDOWN  CERTIFICATE"  means a certificate  delivered to Lender
pursuant to SECTION 3.2(B) of the Credit Agreement  substantially in the form of
EXHIBIT C-2 thereto.

               "EASEMENT  PROPERTY" means the property  subject to all Easements
and similar agreements described on SCHEDULE 2 attached hereto.

               "EASEMENTS"  means any  easement,  other  right of way or license
provided or agreed to by any Person other than a Governmental Authority.

                                       A-5

<PAGE>

               "EMINENT  DOMAIN  PROCEEDS" has the meaning given in SECTION 5.15
of the Credit Agreement.

               "EMPLOYEE  BENEFIT  PLAN" means any employee  benefit plan within
the meaning of section 3(3) of ERISA maintained or contributed to by Borrower or
any ERISA Affiliate, other than a Multiemployer Plan.

               "EQUIPMENT" has the meaning given in SECTION 2(C) of the Security
Agreement.

               "EQUITY  SECURITIES"  of any  Person  shall  mean (a) all  common
stock, preferred stock,  participations,  shares, partnership interests or other
equity interests in and of such Person (regardless of how designated and whether
or not voting or non-voting)  and (b) all warrants,  options and other rights to
acquire any of the foregoing.

               "ERISA"  means the  Employee  Retirement  Income  Security Act of
1974,  as amended  from time to time,  including  (unless the context  otherwise
requires) any rules or regulations promulgated thereunder.

               "ERISA  AFFILIATE"  means any Person which is treated as a single
employer with Borrower under Section 414 of the Code.

               "ERISA PLAN" means any employee  benefit plan (a)  maintained  by
Borrower  or any  ERISA  Affiliate,  or to which any of them  contributes  or is
obligated to contribute,  for its employees and (b) covered by Title IV of ERISA
or to which Section 412 of the Code applies.

               "ESTOPPEL  AND CONSENT  CERTIFICATE"  shall mean an estoppel  and
consent certificate in substantially the same form of EXHIBIT L.

               "EVENT OF DEFAULT" means any event  specified in ARTICLE 8 of the
Credit Agreement.

               "EVENT OF EMINENT DOMAIN" means any compulsory transfer or taking
by  condemnation,  eminent  domain or exercise of a similar  power,  or transfer
under  threat  of  such  compulsory  transfer  or  taking,  of any  part  of the
Collateral  or any of the  mortgaged  property  described  in a mortgage  by any
agency, department,  authority,  commission, board, instrumentality or political
subdivision  of the State of Hawaii,  the United States or another  Governmental
Authority having jurisdiction.

               "EXERCISE  PRICE"  has the  meaning  given  in  SECTION  2 of the
Warrant.

               "EXPECTED COMPLETION DATE" means August 15, 1998.

               "FCC"  means  the  Federal  Communications   Commission  and  its
successors.

               "FCC LICENSE AGREEMENTS" means the Service Agreement, dated as of
September 30, 1997, between Pacwest Network, Inc. ("PNI") and Borrower; the

                                       A-6

<PAGE>
Management Agreement, dated as of September 30, 1997, between PNI and Borrower;
and the Purchase agreement dated September 30, 1997 among PNI, Borrower and GST.

               "FEDERAL  FUNDS  RATE"  means the per annum rate of  interest  at
which  Federal  funds  in  the  amount  of the  Loan  Facility  scheduled  to be
outstanding as of the  commencement of the relevant  Interest Period are offered
to the Lender for such  Interest  Period by Federal funds brokers in New York at
approximately  11:00 a.m. New York time on the date two  Business  Days prior to
the first day of such Interest Period.

               "FEDERAL  RESERVE  BOARD"  means  the Board of  Governors  of the
Federal Reserve System.

               "FIRST ANNUAL OPERATING  BUDGET" has the meaning given in SECTION
5.7(B) of the Credit Agreement.

               "FIXED  RATE"  means a rate per annum  equal to the annual  yield
which a United  States  government  securities  dealer of  recognizes  standing,
selected  by the  Lender  in its  sole  discretion,  offers  to  the  Lender  at
approximately  11:00  a.m.  New  York  time on the  day  preceding  the  date of
conversion  for the  purchase  of United  States  Treasury  notes or bonds in an
aggregate  principal amount of $1,000,000 or more maturing  approximately on the
Maturity Date PLUS 3.00% PLUS swap costs.

               "FORCE  MAJEURE"  means a delay in or failure of performance by a
Person  attributable  to  unforeseeable  occurrences  beyond the control of such
Person, including acts of God or the public enemy; expropriation or confiscation
of  facilities;  compliance  with  any  order  or  request  of any  Governmental
Authority;  unforeseen changes in laws,  regulations or orders, acts of declared
or  undeclared  war;  use of any  weapon  of war  employing  atomic  fission  or
radioactive force, whether in time of peace or war; shipwreck;  public disorder,
rebellion   or  sabotage,   revolution,   epidemics,   landslides,   hurricanes,
earthquakes,  floods, riots, partial or entire failure of utilities, quarantine,
or similar causes; strikes, lockouts or other labor disputes (excluding a strike
at the Site or by employees of a Contractor unless such strike or disturbance is
in violation of a "no strike" provision of a Project labor agreement). Financial
difficulties  of any kind are explicitly  excluded from this definition of Force
Majeure.

               "GAAP"  means  generally  accepted   accounting   principles  and
practices  as in  effect in the  United  States  of  America  from time to time,
consistently applied.

               "GOVERNMENTAL  AUTHORITY"  means  any  national,  state  or local
government (whether domestic or foreign),  any political  subdivision thereof or
any  other  governmental,  quasi-governmental,  judicial,  public  or  statutory
instrumentality,  authority,  body,  agency,  bureau or entity,  (including  any
zoning  authority,  the FCC, the PUC, or any arbitrator with authority to bind a
party at law).

               "GOVERNMENTAL  CHARGES" has the meaning given in SECTION 1 of the
Security Agreement.

                                       A-7

<PAGE>

               "GOVERNMENTAL RULE" means any law, rule,  regulation,  ordinance,
order, code interpretation,  judgment, decree, directive,  guidelines, policy or
similar form of decision of any Governmental Authority.

               "GREENSTAR"  means GSI, GUS, GST, PLI, GST New Mexico  Lightwave,
Inc., GST Tucson Lightwave, Inc., Borrower, and their Affiliates.

               "GSI"  means  GST  Telecommunications  Inc.  (formerly  known  as
"Greenstar  Telecommunications Inc."), a corporation organized under the laws of
Canada.

               "GST" means GST Telecom Inc., a Delaware corporation.

               "GST SECURITY  AGREEMENT" has the meaning given in SECTION 2.7(A)
of the Credit Agreement.

               "GST SERVICES  AGREEMENT"  means the Services  Agreement  between
Borrower and GST, dated as of September 15, 1997.

               "GTE" means GTE Hawaiian Telephone Company Incorporated.

               "GUS" means GST USA,  Inc.  (formerly  known as  "Greenstar  USA,
Inc."), a Delaware corporation.

               "HAZARDOUS  SUBSTANCES"  means  substances  defined as "hazardous
substances,"  in  Section  101 of the CERCLA (42  U.S.C.  Section  9601);  those
substances defined as "hazardous waste" by the RCRA; those substances designated
as a  "hazardous  substance"  pursuant to Section 311 of the Clean Water Act (33
U.S.C.  Section  1321);  those  substances  defined as "hazardous  materials" in
Section 103 of the Hazardous  Materials  Transportation  Act (49 U.S.C.  Section
1801 ET SEQ.  at  Section  1802);  those  substances  regulated  as a  hazardous
chemical  substance or mixture or as an imminently  hazardous chemical substance
or mixture  pursuant  to Sections 6 or 7 of the TSCA (15 U.S.C.  Sections  2605,
2606);  those substances  defined as  "contaminants" by Section 1401 of the SDWA
(42 U.S.C. Section 300f), if present in any surface or ground water in excess of
maximum contaminant levels; those substances regulated by the Oil Pollution Act;
those substances defined as a pesticide pursuant to Section 2(u) of the FIFRA (7
U.S.C. Section 136(u)); those substances defined as a source, special nuclear or
by-product  material by Section 11 of the AEA (42 U.S.C.  Section  2014);  those
substances  defined as  "residual  radioactive  material"  by Section 101 of the
UMTRCA (42 U.S.C.  Section 7911);  those substances defined as "toxic materials"
or "harmful  physical agents"  pursuant to Section 6 of the Occupational  Safety
and Health Act (29 U.S.C.  Section 651 ET SEQ. at Section 655); those substances
defined as hazardous wastes in 40 C.F.R. Part 261.3; those substances defined as
hazardous waste  constituents in 40 C.F.R. Part 260.10,  specifically  including
Appendix  VII and VIII of  Subpart D of 40 C.F.R.  Part  261;  those  substances
designated  as hazardous  substances in 40 C.F.R.  Parts 116.4 and 302.4;  those
substances defined as hazardous  substances or hazardous  materials in 49 C.F.R.
Part  171.8;  those  substances  regulated  as  hazardous  materials,  hazardous
substances, or toxic substances in 40 C.F.R. Part 1910; and in the

                                       A-8

<PAGE>

regulations  adopted and  publications  promulgated  pursuant  to any  Hazardous
Substance Laws, whether or not such regulations or publications are specifically
referenced herein.

               "HAZARDOUS   SUBSTANCE   LAWS"  means:   (a)  the   Comprehensive
Environmental Response,  Compensation, and Liability Act of 1980, as amended (42
U.S.C. Section 9601 ET SEQ.)("CERCLA");  (b) the Federal Water Pollution Control
Act (33 U.S.C.  Section  1251 ET  SEQ.)("CLEAN  WATER  ACT" or  "CWA");  (c) the
Resource Conversation and Recovery Act (42 U.S.C. Section 6901 ET SEQ.)("RCRA");
(d) the Atomic Energy Act of 1954 (42 U.S.C.  Section 2011 ET SEQ.)("AEA");  (e)
the Clean Air Act (42 U.S.C.  Section 7401 ET  SEQ.)("CAA");  (f) the  Emergency
Planning  and  Community  Right  to  Know  Act  (42  U.S.C.   Section  11001  ET
SEQ.)("EPCRA");  (g) the Federal Insecticide,  Fungicide, and Rodenticide Act (7
U.S.C.  Section 136 ET  SEQ.)("FIFRA");  (h) the Oil Pollution Act of 1990 (P.L.
101-380,  104 Stat.  486); (i) the Safe Drinking  Water Act (42 U.S.C.  Sections
300f ET  SEQ.)("SDWA");  (j) the Surface Mining Control and  Reclamation  Act of
1974 (30  U.S.C.  Sections  1201 ET  SEQ.)("SMCRA");  (k) the  Toxic  Substances
Control Act (15 U.S.C.  Section  2601 ET  SEQ.)("TSCA");  (l) the  Uranium  Mill
Tailings   Radiation   Control   Act  of  1978  (42  U.S.C.   Section   7901  ET
SEQ.)("UMTRCA");  and (m) all other Federal,  state and local Governmental Rules
which govern Hazardous Substances,  and the regulations adopted and publications
promulgated pursuant to all such foregoing laws.

               "INSURANCE  PROCEEDS" has the meaning given in SECTION  7.2(A) of
the Credit Agreement.

               "INTERCONNECTION  AGREEMENTS"  means the Cable Station  Resources
Agreement between Borrower and AT&T dated August 6, 1996, the  Telecommunication
Facility   Agreement   between  Borrower  and  GTE  (undated),   and  any  other
interconnection agreement entered into or to be entered into with respect to the
Project.

               "INTEREST   PERIOD"   means   (a)  the   period   commencing   on
_____________ __, 1997 and ending on ______________ __, 1997 and (b) thereafter,
each period commencing on the last day of the next preceding Interest Period and
ending on the numerically  corresponding  day in the third  succeeding  calendar
month;  PROVIDED,  HOWEVER, that (1) the initial Interest Period with respect to
each Construction  Loan other than the initial  Construction Loan shall commence
on the date on which such  subsequent  Construction  Loan is advanced and end on
the last day of the then current  Interest Period as established  above; (2) any
Interest  Period which would  otherwise end on a day which is not a Business Day
shall be extended to the next succeeding  Business Day unless such next Business
Day falls in another  calendar  month,  in which case such Interest Period shall
end on the  immediately  preceding  Business Day; (3) any Interest  Period which
begins on the last Business Day of a calendar month (or on a day for which there
is no  numerically  corresponding  day in the calendar  month at the end of such
Interest Period) shall end on the last Business Day of a calendar month; and (4)
no Interest Period shall end after the Maturity Date.

               "INVENTORY" has the meaning given in SECTION 2(E) of the Security
Agreement.

               "LEASED  PROPERTY" means the real property  subject to or covered
by the Leases.

                                       A-9

<PAGE>

               "LEASES" means any lease of property necessary or entered into in
connection with respect to the Project.

               "LEASE SITES" means: the sites which are the subject of the other
Leases to be entered into with respect to the Project, and all rights, rights of
way and  appurtenances  thereto,  covering certain real property in the Hawaiian
Islands with respect to the Project.

               "LEGAL  REQUIREMENT" means, as to any Person, any requirement set
forth in the Charter  Documents,  of such Person,  any  Governmental  Rule,  any
requirement under a Permit,  and any determination of any arbitrator,  court, or
government  Governmental  Authority,  in each case applicable to or binding upon
such  Person  or any of its  properties  or to which  such  Person or any of its
properties is subject.

               "LENDER"  means TM  Communications  Hawaii LLC and its successors
and assigns.

               "LENDER  REPRESENTATIVE" means an individual designated by Lender
from time to time to act as liaison with Borrower.

               "LIBOR RATE" means a rate per annum  determined  by Lender (which
determination  shall,  absent  manifest error, be conclusive) to be equal to the
rate at which deposits in Dollars are offered to Lender in the London  interbank
eurodollar  currency  market at  approximately  11:00 a.m.  (London  time),  two
Business  Days  prior to the  first day of the  relevant  Interest  Period  (for
delivery on the first day of such Interest  Period) and for a term equal to such
Interest Period.

               "LIEN" on any  asset  means any  mortgage,  deed of trust,  lien,
pledge, charge, judgment, security interest, restrictive covenant or easement or
encumbrance of any kind in respect of such asset, whether or not filed, recorded
or  otherwise  perfected  or  effective  under  applicable  law,  as well as the
interest of a vendor or lessor under any  conditional  sale  agreement,  capital
lease or other title retention agreement relating to such asset.

               "LIQUIDATION  COSTS" has the meaning  given in SECTION 2.6 of the
Credit Agreement.

               "LOAN FACILITY" means,  collectively,  the Construction Loans and
the Term Loans made under the Credit Agreement.

               "MAJOR PROJECT PARTICIPANTS" means AT&T Submarine Systems,  Inc.,
Simplicity   Communications,   Inc.,   Bell  Atlantic   Professional   Services,
Incorporated,  R.M. Towill, Inc., and the other entities to be awarded contracts
with respect to the construction of the Project.

               "MAJOR  SUBCONTRACTS"  means any contract between  Contractor and
any Major Subcontractor.

                                      A-10

<PAGE>

               "MAJOR SUBCONTRACTOR" means any Person, at any tier, who performs
any work, including the supply of any equipment or materials for any Contractor,
involving  amounts in excess in the  aggregate  of Two  Hundred  Fifty  Thousand
Dollars ($250,000).

               "MASTER  AGREEMENT"  means the Master  Agreement  among GSI, GST,
Pacwest, PLI and Tomen America dated October 24, 1994, as amended.

               "MATERIAL  ADVERSE EFFECT" means a material adverse effect on (a)
construction or operation of the Project, or the business, assets, operations or
financial  or other  condition  of Borrower at any time or on the  financial  or
other condition of any other Major Project  Participant  during the Construction
Loan  Availability  Period,  (b) the ability of  Borrower  or any Major  Project
Participant  to perform  its  obligations  under the Credit  Documents  or other
Operative Documents,  (c) the validity or enforceability of the Credit Agreement
or any other Credit Document or any related  document,  instrument or agreement,
or the  rights  and  remedies  of Lender  hereunder  or  thereunder,  or (d) the
Lender's  interest  in a  Project,  the  value of the  Collateral,  or  Lender's
security  interests  in the  Collateral  or the  perfection  or priority of such
security interests.

               "MATERIAL  PROJECT  DOCUMENTS"  means the documents  specified in
SECTION 3.1(B) of the Credit Agreement.

               "MATURITY"  or "MATURITY"  means,  with respect to the amount due
with respect to the Loan Facility,  interest,  fees or other amounts  payable by
Borrower under the Credit Agreement or the other Credit Documents, the date such
amounts  becomes  due,  whether  upon the  stated  maturity  or due  date,  upon
acceleration or otherwise.

               "MATURITY  DATE" means the earlier of the date which is eight (8)
years from the Closing Date or seven (7) years from the Term  Conversion Date or
such earlier date on which the entire outstanding  principal balance of the Loan
Facility, together with all unpaid interest, fees, charges and costs, become due
and payable under the Credit Agreement.

               "MAXIMUM LEGAL RATE" has the meaning given in the Note.

               "MILESTONE    DISBURSEMENT    SCHEDULE"   means   the   milestone
disbursement schedule for the Project delivered by Borrower at the Closing Date.

               "MULTIEMPLOYER  PLAN"  means any  multiemployer  plan  within the
meaning of section 3(37) of ERISA  maintained or  contributed  to by Borrower or
any ERISA Affiliate.

               "NET CASH FLOW" means with respect to a  Development  Company and
the applicable period:

               (a)    the sum of:

                      (i) the gross receipts of the Development Company from all
sources (other than capital  contributions,  proceeds from the Credit  Agreement
with Tomen  America or a Tomen  Affiliate  or other  loans),  including  but not
limited to receipts from (1) the sale of

                                      A-11

<PAGE>

products and services,  (2) interest and other investment  income on investments
and reserves, and (3) insurance proceeds;

                      (ii) any amounts released from reserves,  the distribution
of which is  permissible  and in  accordance  with the  provisions of the Credit
Agreement; and

                      (iii)  any  Net  Cash  Flow  from  a  prior   period   not
distributed but the distribution of which is permissible; less (b) the sum of:

                      (i) all costs and expenses which the  Development  Company
paid  during  such  period  in  connection  with  the  construction,  ownership,
management (except as provided herein), operation and maintenance of the Network
Project,  including,  but not limited to, (1) utility costs,  (2) business taxes
and real and  personal  property tax and  assessments,  and fees and expenses in
connection with the preparation of the  Development  Company's tax returns,  (3)
insurance  premiums,   (4)  the  actual  documented  costs  of  Network  Project
management, not to include management fees paid to Greenstar or any Affiliate in
excess of such actual costs, (5)  expenditures for capital  improvements and the
repair,  maintenance and restoration of the improvements  (including any portion
of the same to the extent not covered by insurance  proceeds),  (6) expenditures
required or deemed advisable to be made under or in connection with any contract
of the  Development  Company,  and (7) all other costs and  expenses,  including
capital  expenditures  and the purchase of spare parts and other  inventory  and
replacement items, required to be made by the Development Company (but excluding
any such amounts to the extent paid out of reserves); and

                      (ii) all principal and interest and other sums and amounts
payable  by the  Development  Company to repay any Loan from Tomen or any of its
Affiliates payable for the applicable or pertinent period.

               "NET CASH FLOW ACCOUNT PLEDGE  AGREEMENT"  means the Guaranty and
Net Cash Flow  Deposit  Account  Pledge  Agreement  in the form of  EXHIBIT  K-2
entered  into  pursuant  to  SECTION  3.1(A)  and  SECTION  5.17  of the  Credit
Agreement.

               "NET CASH FLOW  AGREEMENT"  means the  Guaranty and Net Cash Flow
Pledge  Agreement  in the form of EXHIBIT K-1 entered  into  pursuant to SECTION
3.1(A) and SECTION 5.17 of the Credit Agreement.

               "NETWORK  PROJECT  CREDIT  AGREEMENT"  means a  credit  agreement
between Lender or one of its Affiliates, as lender and a Development Company, as
borrower, to finance an alternative access network telecommunications project.

               "NETWORK    PROJECTS"    means    alternative    access   network
telecommunications  projects  to be  developed  or existing  alternative  access
projects to be expanded by GSI and/or GST in the Territory.

               "1934 ACT" means the Securities Exchange Act of 1934, as amended.

                                      A-12
<PAGE>

               "NORTEL  EQUIPMENT"  means the equipment  which is the subject of
the Master Lease Agreement  between Borrower and GST EquipCo.,  Inc. dated as of
December 19, 1996.

               "NOTE HOLDER" means the registered owner of any Note.

               "NOTE"  has the  meaning  given in  SECTION  2.1(F) of the Credit
Agreement.

               "NOTICE OF BORROWING" has the meaning given in SECTION 2.1(A)(II)
of the Credit Agreement.

               "NOTICE OF INTEREST  RATE  CONVERSION"  has the meaning  given in
SECTION 2.1(D) of the Credit Agreement.

               "NOTICE  OF TERM  CONVERSION"  has the  meaning  given in SECTION
2.1(B)(II) of the Credit Agreement.

               "OBLIGATIONS" means and includes, with respect to any Person, all
loans, advances, debts, liabilities, and obligations, howsoever arising, owed by
such Person to a lender of every kind and description  (whether or not evidenced
by any note or instrument,  and whether or not for the payment of money), direct
or  indirect,  absolute or  contingent,  due or to become due,  now  existing or
hereafter  arising,  pursuant  to the terms of a credit  agreement  or any other
credit document,  including all interest,  fees, charges,  expenses,  attorneys'
fees and  accountants  fees  chargeable  to such Person in  connection  with its
dealings  with such lender and payable by such Person  hereunder or  thereunder.
The term  "Obligations"  shall also mean and include any amounts owing to Lender
which arise because payments as to past  transactions are rescinded or otherwise
required to be surrendered by Lender after receipt.

               "OPERATING  ACCOUNT" has the meaning  given in SECTION 7.1 of the
Credit Agreement.

               "OPERATION   AND   MAINTENANCE   COSTS"  means  all  actual  cash
maintenance  and operation  costs  incurred and paid, or if  appropriate,  to be
incurred and paid, for the Project in any particular  calendar or fiscal year or
period to which said term is applicable,  including payments for fuel, additives
or chemicals and transportation costs related thereto,  local taxes,  insurance,
consumables,  payments under any Lease,  payments pursuant to the agreements for
the management,  operation and maintenance of the Project, reasonable legal fees
and expenses paid by Borrower in connection with the management,  maintenance or
operation  of the Project  (but  excluding  legal fees and  expenses  related to
litigation), fees paid in connection with obtaining,  transferring,  maintaining
or amending any  Applicable  Permits and reasonable  general and  administrative
expenses, but exclusive in all cases of non-cash charges, including depreciation
or  obsolescence  charges or reserves  therefor,  amortization of intangibles or
other  bookkeeping  entries  of a  similar  nature,  and also  exclusive  of all
interest  charges and charges for the payment or  amortization  of  principal of
indebtedness of Borrower  (other than those relating to Debt permitted  pursuant
to SECTION 6.3 of the Credit Agreement).

                                      A-13

<PAGE>

               "OPERATIVE  DOCUMENTS"  means the Credit  Documents,  the Project
Documents and any Additional Project Documents.

               "OTHER TAXES" has the meaning  given in SECTION  2.3(C)(I) of the
Credit Agreement.

               "PACWEST"  means  Pacwest  Network  L.L.C.,   an  Oregon  limited
liability company and its Affiliates.

               "PARTS"  means any  part,  appliance,  instrument,  appurtenance,
accessory or other property of any nature  necessary or useful to the operation,
maintenance, service or repair of the project.

               "PBGC"  means the Pension  Benefit  Guaranty  Corporation  or any
entity succeeding to any or all of its functions under Title IV of ERISA.

               "PERMIT" means any action, approval,  consent, waiver, exemption,
variance, franchise, order, permit, authorization, right or license of or from a
Governmental Authority.

               "PERMITTED  INVESTMENTS"  means  (a)  direct  obligations  of the
United  States of America  (including  obligations  issued or held in book-entry
form on the books of the  Department  of the  Treasury  of the United  States of
America) or  obligations  the timely payment of the principal of and interest on
which are fully  guaranteed  by the United States of America;  (b)  obligations,
debentures,  notes or other evidence of indebtedness issued or guaranteed by any
of the following:  Export-Import  Lender of the United States,  Federal  Housing
Administration  or other agency or  instrumentality  of the United  States;  (c)
interest-bearing  demand or time deposits  (including  certificates  of deposit)
which are either (i) insured by the Federal Deposit  Insurance  Corporation,  or
(ii) held in banks and savings and loan associations, having general obligations
rated at least "AA" or  equivalent by Standard & Poor's  Corporation  ("S&P") or
Moody's Investors Service,  Inc. ("Moody's),  or if not so rated, secured at all
times, in the manner and to the extent  provided by law, by collateral  security
described in clauses (a) or (b) of this definition, of a market value of no less
than the amount of moneys so invested;  (d) commercial  paper rated (on the date
of  acquisition  thereof) at least A-1 or P-1 or  equivalent  by S&P or Moody's,
respectively (or an equivalent  rating by another  nationally  recognized credit
rating agency of similar standing if neither of such corporations is then in the
business of rating commercial  paper),  maturing not more than 270 days from the
date of creation thereof;  (e) any corporate  evidence of indebtedness  rated at
least  "A-" or  equivalent  by S&P or  Moody's;  or (f) any  advances,  loans or
extensions of credit or any stock, bonds, notes,  debentures or other securities
as Lender may from time to time approve in its sole and absolute discretion.

               "PERMITTED LIENS" means (a) the rights and interests of Lender as
provided in the Operative Documents,  (b) Liens for any tax, assessment or other
governmental charge, either secured by a bond reasonably acceptable to Lender or
not yet due or being contested in good faith and by appropriate proceedings,  so
long as (i) such  proceedings  shall not involve any  substantial  danger of the
sale, forfeiture or loss of the Project or any Applicable Easements, as the case
may be, title thereto or any interest therein and shall not interfere in

                                      A-14

<PAGE>

any  material  respect  with  the  use  or  disposition  of the  Project  or any
Applicable  Easements,  or (ii) a bond or other security acceptable to Lender in
its sole  discretion has been posted or provided in such manner and amount as to
assure Lender that any taxes,  assessments or other charges determined to be due
will  be  promptly   paid  in  full  when  such  contest  is   determined,   (c)
materialmen's, mechanics', workers', repairmen's, employees' or other like Liens
arising  in  the  ordinary   course  of  business  or  in  connection  with  the
construction of the Project, either for amounts not yet due or for amounts being
contested  in good  faith and by  appropriate  proceedings,  so long as (i) such
proceedings shall not involve any substantial danger of the sale,  forfeiture or
loss of any part of the Project or any Applicable Easements, as the case may be,
title thereto or any interest  therein and shall not  interfere  with the use or
disposition of the Project or any Applicable Easements,  or (ii) a bond or other
security acceptable to Lender in its sole discretion has been posted or provided
in such manner and amount as to assure Lender that any amounts  determined to be
due will be promptly  paid in full when such  contest is  determined,  (d) Liens
arising out of judgments or awards,  but only so long as an appeal or proceeding
for review is being  prosecuted  in good faith with a reasonable  likelihood  of
success and for the payment of which adequate reserves,  bonds or other security
acceptable  to Lender in its sole  discretion  have been  provided  or are fully
covered by insurance,  (e) mineral  rights the use and enjoyment of which do not
materially interfere with the use and enjoyment of the Project or any Applicable
Easements,  (f) Liens,  deposits or pledges to secure  statutory  obligations or
performance  of  bids,  tenders,  contracts  (other  than for the  repayment  of
borrowed  money)  or  leases,  or for  purposes  of like  general  nature in the
ordinary  course of its business,  (g) Liens incident to the ordinary  course of
business  that are not incurred in  connection  with the  obtaining of any loan,
advance or credit and that do not in the aggregate  materially impair the use of
the  property or assets of Borrower or the value of such  property or assets for
the purposes of such business,  (h) Liens of trade vendors created in connection
with Debt  allowed  under  SECTION  6.3 of the Credit  Agreement,  and (i) Liens
created in connection with a Net Cash Flow Agreement.

               "PERSON" means and includes an individual, a partnership, a firm,
an  association,  a  corporation  (including  a business  trust),  a joint stock
company,  an  unincorporated   association,  a  joint  venture,  a  Governmental
Authority  or any other entity  whether  acting in an  individual,  fiduciary or
other capacity.

               "PLANS AND SPECIFICATIONS" means the plans and specifications for
the  construction and design of the Project,  including any document  describing
the scope of work performed by the Contractors under the Construction  Contracts
or any other  contract  or  subcontract  for the  construction  of the  Project,
including,  without limitation,  the Collocation Agreements, the Interconnection
Agreements and the Pole and Conduit Agreements,  all work drawings,  engineering
and construction  schedules,  project  schedules,  project  monitoring  systems,
specifications  status lists,  material and  procurement  ledgers,  drawings and
drawing lists, manpower allocation documents,  management and project procedures
documents,  project design criteria,  and any other document  referred to in the
Construction Contracts or any of the documents referred to in this definition.

               "PLEDGE  AGREEMENT"  has the meaning  given in SECTION 2.6 of the
Credit Agreement.

                                      A-15

<PAGE>

               "POLE AND CONDUIT USE AGREEMENTS" means: the Master License/Lease
Agreement  between  Hawaiian  Electric  Company,  Inc.,  Maui Electric  Company,
Limited,  Hawaii Electric Light Company,  Inc. and GST Telecom Inc. subsequently
assigned to Borrower dated March 25, 1996; the Pole Attachment Agreement between
GTE Hawaiian Telephone Company,  Incorporated  ("GTE") and Borrower dated August
29, 1996;  the Conduit  Occupancy  Agreement  between GTE and Borrower;  and any
other  agreements  entered into or to be entered into with respect to the use of
poles,  conduits,  the  lease of fiber  optic  cables,  or rights of way for the
Project's fiber optic cable and other equipment.

               "PROCEEDS"  has the  meaning  given in SECTION  7.4 of the Credit
Agreement.

               "PROCUREMENT  AGENT" means  construction  equipment and materials
procurement agent for the development and construction of the Network Projects.

               "PROJECT" means the  development,  construction  and operation of
fiber  optic  transmission  equipment  and  optical  fiber cable for the Service
District  all as  more  particularly  described  in  SCHEDULE  1 to  the  Credit
Agreement,  together with all Easements, all alterations thereto or replacements
thereof, all fixtures, attachments,  appliances,  equipment, machinery and other
articles  attached  thereto or used in connection  therewith and all Parts which
may from time to time be incorporated or installed in or attached  thereto,  all
contracts  and  agreements  for the  purchase  or sale of  commodities  or other
personal  property  related  thereto,  all leases of real or  personal  property
related  thereto,  and all  other  real and  tangible  and  intangible  personal
property owned by Borrower and placed upon or used in connection therewith.

               "PROJECT  BUDGET" has the meaning given in SECTION  3.1(L)(II) of
the Credit Agreement.

               "PROJECT  COSTS"  means  (a) the  cost of  designing,  equipping,
procuring,  constructing,  starting up and testing the Project,  (b) the cost of
acquiring any lease, the Applicable  Easements and any other necessary  interest
in the Project,  (c) local  property taxes and insurance  premiums  payable with
respect to the Project during the Construction  Loan  Availability  Period,  (d)
interest  payable  on any Note for the  Project  during  the  Construction  Loan
Availability  Period, (e) reasonable initial working capital requirements of the
Project  as  approved  by Lender,  (f) the costs of  acquiring  Permits  for the
Project during the Construction  Loan  Availability  Period,  (g) other fees and
expenses  relating  to  the  Project,   including  financial,  legal  (excluding
litigation)  and consulting  fees and expenses,  all as described in the Project
Budget.

               "PROJECT  DOCUMENTS" means the documents listed in SECTION 3.1(B)
of the Credit Agreement,  and any other material  agreement or document relating
to the  development,  construction,  operation,  maintenance  and  repair of the
Project.

               "PROJECT  LOAN"  means a loan in the amount of 75% of the Project
Costs of a Network  Project  provided  by Lender or one of its  affiliates  to a
Development Company pursuant to a Network Project Credit Agreement.

                                      A-16

<PAGE>

               "PROJECT REVENUES" means all income and receipts derived from the
ownership or operation of the Project, including payments due Borrower under the
Construction   Contracts,   proceeds  of  any  business  interruption  or  other
insurance,  income derived from the Project,  together with any receipts derived
from the sale of any property  pertaining  to the Project or  incidental  to the
operation of the Project,  all as determined in conformity  with cash accounting
principles,  the investment  income on amounts in the Accounts,  the proceeds of
any  drawing  under a letter  of credit of which  Borrower  is the  beneficiary,
proceeds of any  insurance,  condemnation  or litigation or  arbitration  awards
relating to the Project and  proceeds  from the  Collateral  Documents,  but not
including sums paid to Borrower in satisfaction  of a contractual  obligation to
indemnify  Borrower  for third  party  liability  to the extent such sums do not
exceed the actual  damage,  loss or cost  suffered  by  Borrower  in  connection
therewith.

               "PROJECT   SCHEDULE"   means   the   Project   Schedule/Milestone
Disbursement Schedule for the Project delivered by Borrower at the Closing.

               "PROPORTIONATE  SHARE" has the meaning given to it in SECTION 9.1
of the Credit  Agreement,  and as set forth in  Attachment  1 of the  Assignment
Agreement.

               "PRUDENT  PRACTICES" means those practices,  methods,  equipment,
specifications  and standards of safety and performance,  as the same may change
from time to time, as are commonly used by facilities  similar to the Project of
a type and size  similar to the Project as good,  safe and  prudent  engineering
practices in connection with the design, construction,  operation,  maintenance,
repair and use  thereof  with  commensurate  standards  of safety,  performance,
dependability, efficiency and economy.

               "PUC" means the State of Hawaii Public Utilities Commission.

               "RECEIPTS  ACCOUNT"  has the meaning  given in SECTION  7.1(A) of
Credit Agreement.

               "RECEIVABLES"  has  the  meaning  given  in  SECTION  2(A) of the
Security Agreement.

               "REFINANCING  NOTICE"  shall  mean a written  notice of  proposed
financing by Borrower in substantially  the same form of EXHIBIT F to the Credit
Agreement.

               "RULES"  shall  mean  the  Commercial  Arbitration  Rules  of The
American Arbitration Association.

               "SEC" means the U.S. Securities and Exchange Commission.

               "SECURITY  AGREEMENT" has the meaning given in SECTION  2.7(A)(I)
of the Credit Agreement.

               "SERVICE DISTRICT" means the geographic  district to be served by
the Project in the Hawaiian Islands as further described in SCHEDULE 1.

                                      A-17

<PAGE>

               "SITE" means the Lease Sites and the Easement Properties.

               "SUBSTANTIAL  COMPLETION"  means  substantial  completion  of the
Project in accordance with the Plans and  Specifications and the requirements of
all  Applicable  Permits  and as  certified  by an  independent  engineer to the
satisfaction of the Lender in its sole discretion.

               "TAXES"  has the  meaning  given in SECTION  2.3(C) of the Credit
Agreement.

               "TERM CONVERSION"  means the  accomplishment of the conversion of
Construction  Loans to a Term Loan  pursuant to SECTION  2.1(B)(I) of the Credit
Agreement.

               "TERM  CONVERSION  DATE" means the date on which Term  Conversion
occurs.

               "TERM LOAN" has the meaning given in SECTION 2.1(B) of the Credit
Agreement.

               "TERRITORY"  means  North  America,  Central  America  and  South
America.

               "TOMEN" means Tomen  Corporation,  a corporation  organized under
the laws of Japan.

               "TOMEN AMERICA" means Tomen America Inc., a New York Corporation.

               "TOTAL  CONSTRUCTION  LOAN  COMMITMENT"  has the meaning given in
SECTION 2.2(A) of the Credit Agreement.

               "TOTAL TERM LOAN  COMMITMENT"  has the  meaning  given in SECTION
2.2(B) of the Credit Agreement.

               "UCC" means the Uniform  Commercial Code of the  jurisdiction the
law of which governs the document in which such term is used.

               "U.S." means the United States of America.


<PAGE>
                             RULES OF INTERPRETATION

               1. All terms defined in the Credit  Agreement or any other Credit
Document in the singular form shall have comparable  meanings in the plural form
and VICE VERSA.

               2. The word "or" is not exclusive.

               3. A reference to a  Governmental  Rule includes any amendment or
modification to such Governmental Rule.

               4. A  reference  to a Person  includes  such  Person's  permitted
successors and permitted assigns.

               5. The words  "include",  "includes" and "including" and words of
similar import are not limiting or exclusive.

               6. A  reference  in a Credit  Document  to an  Article,  Section,
Exhibit,  Schedule,  Annex,  Attachment or Appendix is to the Article,  Section,
Exhibit,  Schedule, Annex, Attachment or Appendix of such Credit Document unless
otherwise indicated.  Exhibits, Schedules, Annexes, Attachments or Appendices to
any document shall be deemed incorporated by reference in such document.

               7. References to any document,  instrument or agreement (a) shall
include all exhibits, schedules and other attachments thereto, (b) shall include
all  documents,  instruments  or  agreements  issued or executed in  replacement
thereof,  and  (c)  shall  mean  such  document,  instrument  or  agreement,  or
replacement or predecessor  thereto, as amended,  modified and supplemented from
time to time and in effect at any given time.

               8. The words  "hereof,"  "herein"  and  "hereunder"  and words of
similar  import  when used in any Credit  Document  shall  refer to such  Credit
Document as a whole and not to any particular provision of such document.

               9. References to "days" shall mean calendar days, unless the term
"Business Days" is used. References to a time of day shall mean such time in New
York, New York unless otherwise specified.

               10. The Credit Documents are the result of negotiations  between,
and have  been  reviewed  by  Borrower,  Lender  and their  respective  counsel.
Accordingly,  the  Credit  Documents  shall be deemed to be the  product  of all
parties  thereto,  and no  ambiguity  shall be  construed in favor of or against
Borrower or Lender.



                                SERVICE AGREEMENT

         THIS AGREEMENT is entered into as of the 30th day of September 1997, by
and between PACWEST  NETWORK,  INC.  ("Pacwest")  and GST TELECOM  HAWAII,  INC.
("GSTH"). This Agreement, together with the Management Agreement dated September
30, 1997, supersedes the Restated and Amended Traffic Agreement and the Restated
and Amended  Usage  Agreement,  each dated as of June 21, 1994 and  restated and
amended as of November 1, 1995.

                               W I T N E S S E T H

         WHEREAS,  Pacwest is a common  carrier  authorized  to operate a common
carrier microwave  transmission system ("the System") located in Hawaii pursuant
to licenses (the  "Licenses")  issued by the Federal  Communications  Commission
("FCC") as set forth in Schedule A; and

         WHEREAS, GSTH is a common carrier that wishes to obtain capacity on the
System in order to  provide  its own  interstate  voice and data  communications
services.

         NOW THEREFORE,  in consideration of the foregoing premises,  the mutual
promises  and  covenants   contained   herein,   and  other  good  and  valuable
consideration,  the receipt and sufficiency of which is hereby acknowledged, the
parties agree as follows:

         1. CAPACITY.

            (a) Pacwest  hereby agrees to make  available to GSTH ninety percent
(90%) of the total transmission capacity available on the System;

            (b)  GSTH  expressly  acknowledges  that all  transmission  capacity
available  over the System and not made  available to GSTH under this  Agreement
shall be available to Pacwest for Pacwest to make  available to other  customers
at Pacwest's sole discretion.

<PAGE>
            (c) The capacity available to GSTH under this Agreement will be used
by  GSTH to  fulfill  requirements  for  provision  of  common  carrier  traffic
termination  services  to carriers  and bulk  capacity  customers  or to provide
service to GSTH's own end user customers, or both.

            (d) GSTH may enter into  agreements  with its  customers  to provide
some or all of the  capacity  GSTH  is  obtaining  herein  on the  System.  Such
customer  agreements  must  be  expressly  subject  to the  provisions  of  this
Agreement.

         2. TECHNICAL STANDARDS AND REQUIREMENTS FOR INTERCONNECTION.

            (a) INTERCONNECTION  STANDARDS.  GSTH shall deliver its own traffic,
and shall  require each of its  customers  to deliver its traffic,  in a digital
DS-1 format at such points of presence as mutually agreed upon by the parties.

            (b) ACCESS  FACILITIES AND MINIMUM LOADING.  GSTH may determine,  in
its discretion,  minimum loading or minimum capacity requirements  applicable to
its  customers.  GSTH also may  submit,  for final  approval  by Pacwest  (which
approval will not be unreasonably withheld),  the particular access arrangements
to the System to be made available to GSTH's  customers as well as  arrangements
for interconnection between GSTH customers' facilities and the System.

         3. WARRANTY.  Pacwest will use its best efforts to maintain the overall
network  quality of the capacity  provided  over the System.  The quality of the
services  Pacwest  provides  hereunder  shall be consistent  with common carrier
industry standards, government regulations and sound business practices.

         4. TRANSFER OF LICENSES.  Pacwest Network,  Inc. hereby undertakes,  as
soon as practicable after receipt of FCC approval, to transfer the Licenses to a
single-purpose entity

                                       -2-


<PAGE>

that (i) will enter into  agreements with GSTH  substantially  identical to this
Agreement,  the Management  Agreement of even date herewith  between the parties
hereto and the Purchase Agreement of even date herewith among the parties hereto
and GST Telecom Inc. and (ii) will represent,  warrant and covenant to GSTH that
it has not engaged,  and will not engage, in any business  activities other than
activities  consisting of, or associated with or incidental to, the ownership or
exploitation of the Licenses or operation of the System, which obligations shall
be  enforceable  by  injunction.  Pacwest shall file all  necessary  application
materials  for approval by the FCC of the transfer of the Licenses  described in
the preceding sentence within 10 business days of the date hereof.

         5. TERM.  The term of this  Agreement  commences as of the date hereof,
and  shall  terminate  upon  mutual  agreement  of the  parties  unless  earlier
terminated under the provisions of paragraph 6.

         6.  TERMINATION  FOR  CAUSE.  Either  party  shall  have  the  right to
terminate  this  Agreement upon notice to the other party at any time during the
term hereof upon the occurrence of any of the following events:

            (a)  any  material  failure  by  a  party  to  perform  any  of  its
obligations  under this  Agreement  in the event that such  failure is not cured
within  thirty (30) days after the  defaulting  party  receives  notice from the
non-defaulting party of such failure;

            (b) the  insolvency of, or appointment of a receiver of the property
of, the other party; or,

            (c) the filing of a voluntary or involuntary  petition by or against
the other party under the Bankruptcy laws of the United States.


                                       -3-

<PAGE>
            (d)  the  determination  of a  third  party  with  expertise  in FCC
regulations  mutually  selected by Pacwest and GSTH that the acts of GSTH or the
terms  of  this  Agreement  have  been  or are  likely  to be  determined  to be
inconsistent  with the rules and  policies of the FCC or any other  governmental
agency  having  jurisdiction  over Pacwest as such rules and  policies  apply to
Pacwest.

         7. INDEMNIFICATION.

            (a) Each party shall  indemnify  and hold the other  party  harmless
against  any and all  damages,  claims,  actions or suits  arising  out of or in
connection with such  indemnifying  party's  provision of service or capacity to
third parties under this Agreement.

            (b) In no event  will  either  party  hereto  be liable to the other
party for any indirect,  special, incidental or consequential losses or damages,
including,  without limitation,  loss of revenue,  loss of customers or clients,
loss of goodwill or loss of profits arising in any manner from this Agreement or
the performance or nonperformance of obligations hereunder.

         8.  PAYMENT.  In  consideration  of the ability to utilize the capacity
pursuant to this Agreement, GSTH shall pay Pacwest the sum of $3,000 per month.

         9. NOTICES.  All notices and other  communications  hereunder  shall be
given in  writing  and shall be deemed  to have  been  duly  given if  delivered
personally, if transmitted by telecopier to the number(s) designated below or if
mailed by first class United States mail,  postage  prepaid,  to the address(es)
designated below, or to such other address as either party may specify from time
to time. All notices and other communications  hereunder shall be deemed to have
been given on the date of receipt.

                                       -4-


<PAGE>
        If to Pacwest:

               Pacwest Network, Inc.
               1701 Broadway, Suite 307
               Vancouver, Washington 98663
               Attn: Chief Executive Officer
               Telecopier: (360) 354-6964

        If to GSTH:

               GST Telecom Hawaii, Inc.
               4317 N.E. Thurston Way
               Vancouver, WA 98662
               Attn: Chief Executive Of fleer
               Telecopier: (360) 260-2075

         10. NO WAIVER.  No term or provision of this Agreement  shall be deemed
waived and no breach or default  shall be deemed  excused  unless such waiver or
consent  shall be in writing  and signed by the party  claimed to have waived or
consented.  No consent by any party to, or waiver of, a breach or default by the
other, whether express or implied,  shall constitute a consent to, waiver of, or
excuse for any different or subsequent breach or default.

         11. ASSIGNMENT. Neither party shall assign this Agreement or any of its
rights or obligations  under this Agreement without the prior written consent of
the other party, and any attempted assignment or transfer by either party not in
compliance with this provision  shall be null and void ad initio;  provided that
GSTH shall be permitted to assign this Agreement and its rights and  obligations
thereunder  to any  affiliate  of GSTH and/or  Tomen  Corporation  or any of its
affiliates.. This Agreement shall bind and inure to the benefit of any permitted
successors and assigns of the parties.

         12.  APPLICABLE  LAW. This  Agreement  shall be construed in accordance
with the laws of the State of  Delaware,  not  including  the  conflicts of laws
principles of that State.

                                       -5-

<PAGE>

         13. CONSTRUCTION. It is the intent of the parties that operation of the
facilities under this Agreement comply with the  Communications  Act of 1934, as
amended, and all provisions of this Agreement shall be so construed.

         14. SEVERABILITY.  If any provision of this Agreement shall be declared
illegal,   invalid  or  unenforceable   by  any   governmental   authority  with
jurisdiction over GSTH,  Pacwest,  and/or the facilities,  then the remainder of
this  Agreement  shall  remain in full force and effect  without  the  offending
provision,  provided  that such  remainder  substantially  reflects the original
agreement of the parties.

         15. AMENDMENTS.  This Agreement  represents the entire understanding of
the parties hereto with respect to the subject matter hereof, supersedes any and
all prior negotiations,  understandings an agreements with respect thereto,  and
may be amended only by a writing signed by both parties.

         16. NO JOINT VENTURE.  Nothing in this Agreement  shall be construed to
make  Pacwest  and GSTH joint  venturers  or to impose  upon  either of them any
liability as such.

         17.  LIMITATIONS ON LIABILITY.  Neither GSTH nor Pacwest shall have any
liability for failure to comply with this Agreement if such failure results from
the occurrence of any contingency beyond the reasonable control of such party.

         18.  COUNTERPARTS.  This  Agreement  may be  executed  in any number of
counterparts,  each of which shall be  considered  an original  and all of which
taken  together shall  constitute  one Agreement  binding on both of the parties
hereto,  notwithstanding  that  both  parties  shall  not have  signed  the same
counterpart.

                                       -6-

<PAGE>
         IN WITNESS WHEREOF,  the parties have executed this Agreement as of the
date first above written.

                              PACWEST NETWORK, INC. ("Pacwest")



                              By: /s/ John Warta
                                  -------------------------------
                                  John Warta, President


                              GST TELECOM HAWAII, INC.


                              By: /s/ Clifford V. Sander
                                  ---------------------------------
                                  Clifford V. Sander, Vice President

The  undersigned  hereby agree that the foregoing  agreement and the  Management
Agreement of even date  therewith  supersede  the  Restated and Amended  Traffic
Agreement  and the Restated and Amended Usage  Agreement,  each dated as of June
21, 1994 and restated and amended as of November 1, 1995.

                              GST PACWEST TELECOM HAWAII, INCORPORATED



                              By: /s/ Clifford V. Sander
                                  ----------------------------------
                                  Clifford V. Sander, Vice President


                              GST TELECOM INC.



                              By: /s/ Clifford V. Sander
                                  ----------------------------------
                                  Clifford V. Sander, Vice President


                                       -7-


<PAGE>
                                   SCHEDULE A

                                                              SEPTEMBER 22, 1997

                         PACWEST MICROWAVE LICENSE CHART

- --------------------------------------------------------------------------------
CALL SIGN                  SITE                                FCC FILE NO.

- --------------------------------------------------------------------------------
WNTM 942                   Honolulu, HI                          781465

                                                                 C703102

- --------------------------------------------------------------------------------
WNTM 943                   Honolulu, HI                          781466

                                                                 C703101

- --------------------------------------------------------------------------------
WMJ 474                    Grosvenor Center, HI                  18182-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 475                    2121 Ala Wai, HI                      18183-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 476                    Waterfront, HI                        18184-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 477                    Pacific Tower, HI                     18185-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 478                    Dillingham, HI                        18186-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 479                    Pacific Beach, HI                     18187-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WHO 653                    Kilohana, HI                          94-13240

- --------------------------------------------------------------------------------
WHO 654                    Mauna Kapu, HI                        1242-CF-1-87

                                                                 30024-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 657                    Wahiawa, HI                           11406-CF-L-86

                                                                 30013-CF-R-91

                                                                 94-13240
- --------------------------------------------------------------------------------

                                      -8-

<PAGE>

- --------------------------------------------------------------------------------
WHO 658                    Pearlridge, HI                        11407-CF-L-86

                                                                 30014-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 659                    Grosvenor, HI                         11408-CF-L-86

                                                                 30015-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 660                    Ala Wai, HI                           11409-CF-L-86

                                                                 30016-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 661                    Koko Head, HI                         11410-CF-L-86

                                                                 30017-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 662                    Kahala, HI                            94-13240

- --------------------------------------------------------------------------------
WHO 664                    Puu Nana, HI                          11417-CF-L-86

                                                                 30026-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 665                    Kailua, HI                            1243-CF-L-87

                                                                 30019-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 666                    Waimanalo, HI                         1244-CF-L-87

                                                                 30020-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 668                    Launiukoki, HI                        11412-CF-L-6

                                                                 30010-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 669                    Kaanapali, HI                         94-13240

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

                                       -9-

<PAGE>

- --------------------------------------------------------------------------------
WHO 670                    Keonehunehune, HI                     11414-CF-L-86
                                                                 1245-CF-L-87

                                                                 30018-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 671                    Kahuludi, HI                          11415-CF-L-86

                                                                 30011-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 672                    Kihei, HI                             11416-CF-L-86

                                                                 30012-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 673                    Huehue, HI                            1246-CF-L-87

                                                                 30021-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 674                    Kona, HI                              1247-CF-L-87

                                                                 30022-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 675                    Sheep Station, HI                     1248-CF-L-87

                                                                 30023-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 676                    Hilo, HI                              1249-CF-L-87

                                                                 30025-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WLN 644                    Hawaii Kai, HI                        94-13240

- --------------------------------------------------------------------------------
WPJD 398                   Kihei, HI                             9602113
- --------------------------------------------------------------------------------
WPJD 399                   Haleakala, HI                         9602112
- --------------------------------------------------------------------------------


                                      -10-


                              MANAGEMENT AGREEMENT

         THIS  AGREEMENT is entered  into as of the 30th day of September  1997,
between  Pacwest  Network,   Inc.  ("Pacwest")  and  GST  Telecom  Hawaii,  Inc.
("Manager"). This Agreement, together with the Service Agreement dated September
30, 1997, supersedes the Restated and Amended Traffic Agreement and the Restated
and Amended  Usage  Agreement,  each dated as of June 21, 1994 and  restated and
amended as of November 1, 1995.

                               W I T N E S S E T H

         WHEREAS,  Pacwest is an  authorized  common  carrier that provides long
distance  telephone  service by access to a network of long distance  facilities
(the "Network") including microwave  transmission  facilities ("the Facilities")
under licenses ("the Licenses") issued to Pacwest by the Federal  Communications
Commission ("FCC") set forth in Schedule A; and

         WHEREAS,  Manager and Pacwest desire to enter into an arrangement under
which Pacwest will maintain control of the operation of the Facilities while the
day-to-day  operation  and  management  of the  Facilities  will be performed by
Manager under the direction of Pacwest in accordance with the Communications Act
of 1934,  as amended (the  "Communications  Act") and the rules and  regulations
promulgated thereunder by the FCC, and in coordination with the operation of the
entire Network.

         NOW THEREFORE,  in consideration of the foregoing premises,  the mutual
promises   and   covenants   contained   herein  and  other  good  and  valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties agree as follows:


<PAGE>
               1. Manager Duties and Compensation.

                  (a)  Subject  Pacwest's  oversight,  review,  supervision  and
control as provided in Paragraph 2 of this  Agreement,  Manager shall manage and
perform  the  day-to-day   administrative   and  technical   operations  of  the
Facilities,  including,  but not  limited  to,  operating  and  maintaining  the
Facilities,  implementing the terms of leases or other arrangements entered into
between  Pacwest and  customers  pursuant to which,  subject to  Paragraph  l(b)
below,  capacity over the  Facilities is made  available to customers of Pacwest
(the "Leases"),  and assuring  compliance with the Communications Act, FCC rules
and  regulations  and the  conditions  relating to the  Licenses.  Manager shall
maintain such  Facilities and equipment and hire and supervise such employees as
are necessary for the fulfillment of its responsibilities hereunder.

                  (b)  Receipts  from the  lease of  capacity  over the  Network
pursuant to the Leases between  Pacwest and its customers  shall be collected by
Manager and paid to Pacwest.  Pacwest shall pay Manager the amount of $3,000 per
month as compensation for the services rendered hereunder.

               2. CONTROL BY PACWEST.

                  (a) Pacwest shall at all times exercise ultimate direction and
control over the operation and  maintenance of the Facilities and shall oversee,
review,  supervise and control all of the  activities of Manager.  Manager shall
provide  Pacwest  with such  books of  account,  records  and  reports,  and any
information  with  respect to the  Facilities  or Manager's  performance  of its
duties hereunder, as Pacwest may request and shall afford Pacwest and its


                                       -2-

<PAGE>


officers and employees  unfettered  access at all times to the Facilities and to
the operation thereof.

                  (b) To the extent that  employees  of the Manager are utilized
in any aspect of the operation of the system,  any such employees of the Manager
shall be immediately  removed upon Pacwest's  reasonable finding that good cause
for  removal  exists.  The  Manager  agrees to  maintain  appropriate  workmen's
compensation and disability insurance to satisfy the potential claims of any and
all employees and/or agents of Manager or its affiliates.

                  (c) Notwithstanding anything to the contrary contained in this
Section,  without the prior  written  approval of Pacwest,  Manager shall not be
authorized to do any of the following on behalf of Pacwest:

                      (i)  grant a  security  interest  in any of the  assets of
Pacwest associated with the Facilities:

                      (ii) sell, lease, trade,  exchange or otherwise dispose of
any property of Pacwest, including Pacwest's Licenses;

                      (iii) Make any FCC filings  regarding  the  Facilities  or
Pacwest's Licenses with the FCC.

               3. OPERATION OF FACILITIES  AND COMPLIANCE  WITH LAW. (a) Manager
shall maintain the overall network  quality of the  Facilities,  consistent with
common carrier  industry  standards,  government  regulations and sound business
practices.


                                       -3-


<PAGE>

                      (b) Manager shall at all times  operate the  Facilities in
compliance  with the  Communications  Act and any other federal,  state or local
rules,  regulations and policies of other  governmental  agencies with authority
over  Pacwest  and/or the  Facilities,  as such  laws,  rules,  regulations  and
policies are in effect from time to time.

               4. MODIFICATION OF FACILITIES.  Manager may initiate modification
to the Facilities from time to time, at Manager's expense,  subject to Pacwest's
express written approval of any proposed modifications. If prior FCC approval of
such  modifications  is required,  Manager  shall,  at its  expense,  prepare an
appropriate  application for Pacwest to approve, sign and file with the FCC, and
no such  change  shall be  implemented  prior to the grant of FCC  consent.  Any
application  for a license to cover any  construction  permit shall similarly be
prepared by Manager for approval and filing by Pacwest.

               5.  FCC  FILINGS.   Manager  shall   cooperate  with  Pacwest  in
furnishing any information  which may be requested by the FCC in connection with
the operation of the  Facilities,  including,  but not limited to, any technical
and/or engineering information. Manager shall prepare for Pacwest's approval and
filing with the FCC,  appropriate  license renewal  applications  and such other
reports,  documents,  and filings as may be necessary  from time to time to keep
the Licenses in full force and effect for operation of the  Facilities.  Pacwest
shall  cooperate with Manager in signing and filing such  application  and other
reports,  documents  and filings as Manager  shall from time to time prepare and
submit to Pacwest.

               6. NOTICES. All notices and other communications  hereunder shall
be given in  writing  and shall be deemed to have been duly  given if  delivered
personally,  if transmitted by telecopier to the number (s) designated below, or
if mailed by first class United States

                                       -4-


<PAGE>
mail,  postage  prepaid,  to the  address(es)  designed  below, or to such other
address as either  party may  specify  from time to time.  All notices and other
communications  hereunder  shall be  deemed  to have  been  given on the date of
receipt.

                      If to Pacwest:

                      Pacwest Network, Inc.
                      1701 Broadway, Suite 307
                      Vancouver, WA 98663
                      Attn: Chief Executive Officer
                      Telecopier: (360) 354-6964

                      If to Manager:

                      GST Telecom Hawaii, Inc.
                      4317 N.E. Thurston Way
                      Vancouver, WA 98662
                      Attn: Chief Executive Officer
                      Telecopier: (360) 260-2075

               7. TERM.  The term of this  Agreement  shall begin as of the date
hereof,  and shall terminate upon the occurrence of any of the following  events
(unless earlier terminated pursuant to the provisions of Paragraph 8 hereof):

                      (a) revocation or expiration without renewal of all of the
Licenses for operation of the Facilities:

                      (b) mutual  agreement  of the  parties to  terminate  this
Agreement.  8. TERMINATION FOR CAUSE.  Pacwest shall have the right to terminate
this  Agreement  upon  notice to Manager at any time during the term hereof upon
the occurrence of any of the following events:

                      (a) any material  failure by Manager to perform any of its
obligations under this Agreement;

                                       -5-


<PAGE>
                      (b) the filing of a voluntary or  involuntary  petition by
or against Manager under the Bankruptcy laws of the United States;

                      (c) the  foreclosure of any lien or security  interest in,
or the  placement  of or  issuance  of any  levy,  writ of  attachment,  writ of
garnishment,  writ of  execution  or  similar  process  against  Manager  or any
property of Manager or securities representing an ownership interest in Manager;

                      (d) the refusal by the FCC, any other state,  federal,  or
local   regulatory   agency  having   jurisdiction   over  the  consummation  of
transactions  contemplated  hereby; or any third party whose consent is required
to permit the  consummation  of  transactions  contemplated  hereby to grant any
consent  or  approval  necessary  to  permit  the  parties  to  consummate  such
transactions,  and, in the case of the FCC or any other regulatory agency,  such
refusal is no longer subject to  administrative or judicial  reconsideration  or
review;

                      (e) the  determination  of a third party with expertise in
FCC  regulation  mutually  selected  by Pacwest  and  Manager,  that the acts of
Manager or the terms of this  Agreement have been or are likely to be determined
to be  inconsistent  with  the  rules  and  policies  of the  FCC  or any  other
government  agency  having  jurisdiction  over the  Licenses  as such  rules and
policies apply to the Licenses.

               9. INDEMNIFICATION.

                      (a) Each party shall indemnify and hold harmless the other
party  against any and all damages,  claims,  actions or suits by third  parties
arising out of or in connection with such  indemnifying  party's  performance of
its obligations hereunder.


                                       -6-


<PAGE>

                      (b) In no event will either  party hereto be liable to the
other party for any indirect,  special,  incidental or  consequential  losses or
damages,  including,  without limitation,  loss of revenue, loss of customers or
clients,  loss of  goodwill  or loss of profits  arising in any manner from this
Agreement or the performance of nonperformance of obligations hereunder.

               10.  NO-WAIVER.  No term or provision of this Agreement  shall be
deemed  waived  and no breach or default  shall be deemed  excused  unless  such
waiver or consent shall be in writing and signed by the party granting waiver or
consent.  No  consent  by any party to, or waiver of, a breach or default by the
other, whether express or implied,  shall constitute a consent to, waiver of, or
excuse for any different or subsequent breach or default.

               11.  CESSATION OF MANAGEMENT  SERVICES.  On the effective date of
termination  of this  Agreement  under either  Paragraph 7 or 8 hereof,  Manager
shall cease provision of all management and operational  services related to the
Facilities.  Pacwest and Manager shall use their best efforts to ensure a smooth
transition in the event of termination of this Agreement.

               12. ASSIGNMENT.  Neither party shall assign this Agreement or any
of its rights or  obligations  under this  Agreement  without the prior  written
consent of the other party,  and any attempted  assignment or transfer by either
party not in compliance  with this  provision  shall be null and void AD INITIO,
provided  however that Manager  shall be permitted to assign this  Agreement and
its rights and  obligations  hereunder to any affiliate of Manager  and/or Tomen
Corporation or any of its affiliates. This Agreement shall bind and inure to the
benefit of any permitted successors and assigns of the parties.


                                       -7-

<PAGE>
               13.   APPLICABLE  LAW.  This  Agreement  shall  be  construed  in
accordance  with the laws of the State of Delaware,  not including the conflicts
of laws principles of that States.

               14. CONSTRUCTION.  It is the intent of the parties that operation
of the Facilities under this Agreement comply with the  Communications  Act, and
all provisions of this Agreement shall be so construed.

               15.  SEVERABILITY.  If any provision of this  Agreement  shall be
declared  illegal,  invalid or unenforceable by any governmental  authority with
jurisdiction over Manager, Pacwest, and/or the Facilities, then the remainder of
this  Agreement  shall  remain in full force and effect  without  the  offending
provision,  provided  that such  remainder  substantially  reflects the original
agreement of the parties.

               16.   AMENDMENTS.    This   Agreement   represents   the   entire
understanding  of the parties  hereto with respect to the subject matter hereof,
supersedes any and all prior  negotiations,  understandings  and agreements with
respect thereto, and may be amended only by a writing signed by both parties.

               17.  NO  JOINT  VENTURE.  Nothing  in  this  Agreement  shall  be
construed to make Pacwest and Manager  joint  venturers or to impose upon either
of them any liability as such.

               18.  LIMITATION ON LIABILITY.  Neither  Manager nor Pacwest shall
have any  liability  for failure to comply with this  Agreement  if such failure
results from the occurrence of any contingency  beyond the reasonable control of
such party.

               19. COUNTERPART . This Agreement may be executed in any number of
counterparts,  each of which shall be  considered  an original  and all of which
taken together


                                       -8-


<PAGE>

shall  constitute  one  Agreement   binding  on  both  of  the  parties  hereto,
notwithstanding that both parties shall not have signed the same counterpart.

               IN WITNESS  WHEREOF,  the parties have executed this Agreement as
of the date first above written.

                                   PACWEST NETWORK, INC. ("Pacwest")



                                   By: /s/ John Warta
                                      ----------------------------------
                                      John Warta
                                      President


                                   GST TELECOM HAWAII, INC. ("Manager")


                                   By: /s/ Clifford V. Sander
                                      ----------------------------------
                                      Clifford V. Sander
                                      Vice President

                                       -9-


<PAGE>

         The  undersigned  hereby  agree that the  foregoing  agreement  and the
Service  Agreement  of even date  therewith  supersede  the Restated and Amended
Traffic Agreement and the Restated and Amended Usage Agreement, each dated as of
June 21, 1994 and restated and amended as of November 1, 1995.

                                   GST Pacwest Telecom
                                   Hawaii, Incorporated


                                   By: /s/ Clifford V. Sander
                                      ----------------------------------
                                      Clifford V. Sander
                                      Vice President

                                   GST Telecom Inc.


                                   By: /s/ Clifford V. Sander
                                      ----------------------------------
                                      Clifford V. Sander
                                      Vice President


                                      -10-

<PAGE>


                                   SCHEDULE A

                                                              SEPTEMBER 22, 1997

                         PACWEST MICROWAVE LICENSE CHART

- --------------------------------------------------------------------------------
CALL SIGN                  SITE                                FCC FILE NO.

- --------------------------------------------------------------------------------
WNTM 942                   Honolulu, HI                          781465

                                                                 C703102

- --------------------------------------------------------------------------------
WNTM 943                   Honolulu, HI                          781466

                                                                 C703101

- --------------------------------------------------------------------------------
WMJ 474                    Grosvenor Center, HI                  18182-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 475                    2121 Ala Wai, HI                      18183-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 476                    Waterfront, HI                        18184-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 477                    Pacific Tower, HI                     18185-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 478                    Dillingham, HI                        18186-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WMJ 479                    Pacific Beach, HI                     18187-CF-P-91

                                                                 94-13239

- --------------------------------------------------------------------------------
WHO 653                    Kilohana, HI                          94-13240

- --------------------------------------------------------------------------------
WHO 654                    Mauna Kapu, HI                        1242-CF-1-87

                                                                 30024-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 657                    Wahiawa, HI                           11406-CF-L-86

                                                                 30013-CF-R-91

                                                                 94-13240
- --------------------------------------------------------------------------------

                                      -11-

<PAGE>

- --------------------------------------------------------------------------------
WHO 658                    Pearlridge, HI                        11407-CF-L-86

                                                                 30014-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 659                    Grosvenor, HI                         11408-CF-L-86

                                                                 30015-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 660                    Ala Wai, HI                           11409-CF-L-86

                                                                 30016-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 661                    Koko Head, HI                         11410-CF-L-86

                                                                 30017-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 662                    Kahala, HI                            94-13240

- --------------------------------------------------------------------------------
WHO 664                    Puu Nana, HI                          11417-CF-L-86

                                                                 30026-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 665                    Kailua, HI                            1243-CF-L-87

                                                                 30019-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 666                    Waimanalo, HI                         1244-CF-L-87

                                                                 30020-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 668                    Launiukoki, HI                        11412-CF-L-6

                                                                 30010-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 669                    Kaanapali, HI                         94-13240

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

                                      -12-

<PAGE>

- --------------------------------------------------------------------------------
WHO 670                    Keonehunehune, HI                     11414-CF-L-86
                                                                 1245-CF-L-87

                                                                 30018-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 671                    Kahuludi, HI                          11415-CF-L-86

                                                                 30011-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 672                    Kihei, HI                             11416-CF-L-86

                                                                 30012-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 673                    Huehue, HI                            1246-CF-L-87

                                                                 30021-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 674                    Kona, HI                              1247-CF-L-87

                                                                 30022-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 675                    Sheep Station, HI                     1248-CF-L-87

                                                                 30023-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WHO 676                    Hilo, HI                              1249-CF-L-87

                                                                 30025-CF-R-91

                                                                 94-13240

- --------------------------------------------------------------------------------
WLN 644                    Hawaii Kai, HI                        94-13240

- --------------------------------------------------------------------------------
WPJD 398                   Kihei, HI                             9602113
- --------------------------------------------------------------------------------
WPJD 399                   Haleakala, HI                         9602112
- --------------------------------------------------------------------------------


                                      -13-

                                      PURCHASE AGREEMENT

               Reference is made to (i) that certain Service  Agreement dated as
of September 30, 1997, by and between Pacwest Network,  Inc. ("Pacwest") and GST
Telecom Hawaii, Inc. ("GSTH");  and (ii) that certain Management Agreement dated
as of  September  30,  1997,  by and  between  Pacwest and GSTH.  This  Purchase
Agreement  supersedes  the Letter  Agreement  entered  into among  Pacwest,  GST
Pacwest Telecom Hawaii,  Incorporated  and GST Telecom Inc.  ("Telecom"),  dated
December 1, 1995.

               The following constitutes our agreement:

               1. If at any time after the date hereof,  John Warta ceases to be
a full time employee of Telecom, its parent corporations,  GST USA, Inc. and GST
Telecommunications,  Inc. ("GST") and/or their subsidiaries  (collectively,  the
"GST  Companies"),  the Service  Agreement and the  Management  Agreement  shall
remain in full force and effect in accordance with their terms,  and the parties
thereto  shall  continue  to perform  their  duties and  obligations  under such
Agreements in the same manner as they have  theretofore  been  performed,  for a
period ending not less than one year after such cessation of employment.

                      If, during such period,  GSTH or GST shall  determine that
its  operations  would be  facilitated  by the  transfer of  Licenses  issued to
Pacwest by the Federal  Communications  Commission  ("FCC")  for  point-to-point
microwave  facilities ("the  Licenses"),  listed on Schedule 1 hereto,  it shall
communicate  such  determination  in writing to Pacwest.  Pacwest shall promptly
file  with the FCC  applications  to  transfer  or  assign  the  Licenses  to an
executive  officer of one of the GST Companies or to one of the GST Companies or
to any other desginee,  which executive officer, Company or other designee shall
be designated by the Board of Directors of GST and shall be eligible to hold the
Licenses   pursuant  to  federal  law  and  the  FCC's  Rules  (the  "Designated
Transferee").  Upon  approval  of such  application,  GST shall  pay to  Pacwest
reasonable  consideration for the Licenses,  and Pacwest shall promptly transfer
or assign the Licenses to the Designated  Transferee.  The reasonableness of the
consideration  shall be determined by an appraisal by an independent  party with
expertise  in the  evaluation  of  telecommunications  facilities  and  licenses
mutually  selected  by Pacwest  and GST.  Pacwest  shall  also  secure all other
required  approval or  authorization  from the FCC to effectuate the transfer of
the Licenses,  and assignment or termination of the Management Agreement and the
Service Agreement.

               2. The parties  will seek to effect the  transfer of the Licenses
to the  Designated  Transferee  in a manner that will  minimize any  operational
impact  upon  GSTH or any of the  other  GST  Companies.  The  costs of any such
transfer  shall be borne  entirely by the GST  Companies  and the GST  Companies
shall defend,  indemnify and hold  harmless  Pacwest,  its members and managers,
from and against any and all losses, damages,  obligations,  liabilities,  costs
and expenses (including without limitation  reasonable attorneys' fees) incident
to any suit, action,  investigation,  claim or proceeding relating to or arising
out  of the  transfer  of  the  Licenses  in the  manner  contemplated  by  this
Agreement.


<PAGE>

               3.  The  foregoing  provisions  of  this  Agreement  are  and are
intended to be subject to all applicable  requirements of the Communications Act
of 1934,  as  amended,  and the FCC's  Rules,  and shall be so  effectuated  and
construed.

               4. In the  event of a  default  by GSTH  under  the  terms of the
Credit Agreement dated as of September 30, 1997 between GSTH and an affiliate of
Tomen  America  Inc.  ("Tomen"),  all of the rights of GST under this  Agreement
shall be  automatically  transferred  to Tomen,  without  further  action by any
party,  including,  without  limitation,  that  Tomen  shall  have the  right to
transfer  the  Licenses to Tomen or any of its  affiliates  or  designees in the
manner  provided and subject to the conditions set forth in Section 1 hereof for
transfers by GST.

               IN WITNESS  WHEREOF,  the parties have executed this Agreement as
of the date first above written.

                                    GST TELECOM HAWAII, INC.


                                    By: /s/ Clifford V. Sander
                                        ----------------------------------
                                        Clifford V. Sander, Vice President



                                    GST TELECOM INC.


                                    By: /s/ Clifford V. Sander
                                        ----------------------------------
                                        Clifford V. Sander, Vice President

                                    PACWEST NETWORK, INC.


                                    By: /s/ John Warta
                                        ----------------------------------
                                        John Warta, President


                                       -2-


<PAGE>

          The undersigned hereby agrees that the foregoing agreement  supersedes
the Letter Agreement dated December 1, 1995 among the  undersigned,  GST Telecom
Inc. and Pacwest Network, Inc.

                                          GST PACWEST TELECOM HAWAII,
                                          INCORPORATED

                                         By: /s/ Clifford V. Sander
                                            ---------------------------------
                                            Clifford V. Sander, Chief
                                            Financial Officer, Vice President


                                       -3-




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