Document:

<PAGE>

10.16 Credit Facility Letter dated June 24, 2002, between Trio-Tech
      International Pte. Ltd. and Standard Chartered Bank.

Date              24.June 2002                                          Standard
Our Ref           C&I/CDT/CFS/LG/AH/TRITI 1                            Chartered

PRIVATE & CONFIDENTIAL

Trio-Tech International Pte Ltd
1008 Toa Payoh North
#03-09/18
Toa Payoh Industrial Estate
Singapore 318996

Attn:-  Mr Victor Ting
        Chief Financial Officer

                                                          Telephone No. 65303505

Dear Sirs,

BANKING ARRANGEMENTS

Further to the Facility Letter dated 19 November 2001, Standard Chartered Bank
(the "Bank") is pleased to advise that condition no. 2) under the paragraph
"CONDITIONS" has been amended as outlined below. All other Facilities, security,
terms and conditions as mentioned in the Facility Letter dated 19 November 2001
remain unchanged.

CONDITION

2)  The Customer is to maintain a minimum networth of SGD7,000,000 at all times.

    Networth is defined as the aggregate of paid-up capital and revenue
    reserves, excluding revaluation reserves and deducting any loans made to the
    directors in their personal capacities or to the parent company, Trio-Tech
    International USA directly and indirectly or other related companies and
    other intangible assets.

ACCEPTANCE

If the amendment is acceptable, please return the attached duplicate copy of
this Supplementary Facility Letter duly signed in acceptance and in accordance
with your board resolution passed on 29 June 2001 to:

                             Standard Chartered Bank
                             Corporate & Institutional
                             Credit Operations
                             CPF Tampines Building #03-00
                             1 Tampines Central 5
                             Singapore 529508

                             Attention    : Ms Anna Hee

Standard Chartered Bank
Corporate & Institutional
Credit Operations
1 Tampines Central 5, CPF Tampines Building #03-00
Singapore 529508                                           Tel(65) 6225 8888

Robinson Road P. 0. Box 1901, Singapore 903801                Fax (65) 6260 2513

Incorporated in England with limited liability by Royal Charter 1853
The Principal Office of the Company is situated in England at 1 Aidermanbury
Square London EC2V 7SB Reference Number ZC18

<PAGE>

We are pleased to be of continuing assistance to your company.

Yours faithfully
For and on behalf of
Standard Chartered Bank

/s/: Laurence Goh

___________________________

Laurence Goh
Deputy Head
Corporate Financial Services

We confirm the Customer's acceptance of the amendment on the terms and
conditions outlined in this Supplemental Facility Letter dated 24 June 2002:-

/s/: Yong Siew Wai

____________________________________________________

For and on behalf of Trio-Tech International Pte Ltd

<PAGE>

10.16  Credit Facility Letter dated November 19, 2002, between Trio-Tech
       International Pte. Ltd. and Standard Chartered Bank.

                                                   Standard Chartered

                                                   Standard Chartered Bank

Date          :       19 November 2001             Corporate & Institutional
                                                   Credit Operations
                                                   CPF Tampines Building #03-00
                                                   1 Tampines Central 5
Our Ref       :       C&I/CDT/CFS/LG/AH            Singapore 529508

                                                   Postal Address:
                                                   Robinson Road P. 0. Box 1901
PRIVATE AND CONFIDENTIAL                           Singapore 903801
Trio-Tech International Pte Ltd                    Telephone +65 225 8888
1008 Toa Payoh North                               Facsimile +65 260 2513
#03-09/18                                          Telegrams STANCHART
Toa Payoh Industrial Estate                        Telex RS 24290
Singapore 318996

Attn:-    Mr Victor Ting
          Chief Financial Officer

Dear Sirs

BANKING ARRANGEMENTS

Standard Chartered Bank (the "Bank") is pleased to confirm its willingness to
continue to make available to Trio-Tech International Pte Ltd (the "Customer")
the banking facilities (the "Facilities") outlined below on the following terms
and conditions, subject to the Bank's Standard Terms and Conditions, as set out
in Form 338-1198 attached hereto, and to the satisfactory completion of
documentation:-

BANKING FACILITIES

AMOUNT                      DESCRIPTION AND PRICING

1)       SGD500,000         Overdraft in current account, repayable upon demand,
                            to assist with working capital requirements.
                            Interest at prime plus 1.25% p.a. payable monthly in
                            arrears to the debit of the Customer's current
                            account.

1a)      (USD200,000)       Overdraft in United States Dollar (USD) current
                            account, repayable upon demand, to assist with
                            working capital requirements.

                            Interest at USD prime plus 1% p.a. payable monthly
                            in arrears to the debit of the Customer's USD
                            current account.

1b)      (SGD250,000)       Short term loan in Singapore Dollar for period of 1,
                            2 or 3 months.

                            Interest at cost of funds plus 1.75% p.a. during the
                            term of each Singapore Dollar bill.

                            Note:-

                            Interavailability between the overdraft facility and
                            the short term money market loans is at the sole
                            discretion of the Bank.

                            The Bank may at any time at its sole discretion
                            suspend the availability of prime-based funds by
                            reason or circumstances affecting the money market
                            including but not limited to volatile rate
                            fluctuations or tight liquidity.

<PAGE>

                                                    Standard Chartered

                            Drawings under both limits 1), 1a) and 1b) must not
                            exceed SGD500,000 at any time.

 2a)     SGD2,000,000       For opening irrevocable letters of credit, drafts at
                            sight and/or at usance for period up to 120 days,
                            covering the import of electronic test equipment and
                            accessories into Singapore and/or Malaysia.

2b)      (SGD1,000,000)     Loans against trust receipts and/or acceptance
                            against trust receipts for period up to 120 days,
                            covering the release of goods imported under and
                            complementary to limit 2a).

                            Interest at SBFR plus 1.25% p.a. during the term of
                            each trust receipt.

2c)      (SGD1,000,000)     Shipping guarantees may be issued to secure the
                            release of goods imported under letters of credit or
                            collection bills routed through the Bank.

2d)      (SGD1,000,000)     For opening irrevocable letters of credit, drafts at
                            sight and/or at usance for period up to 120 days,
                            covering the import of electronic test equipment and
                            accessories in favour of Singapore or Malaysian
                            suppliers.

                            Note:

                            Combined outstandings under limits 2a) to 2d) must
                            not exceed SGD2,000,000 at any one time.

2e)      (SGD500,000)       Loans against imports by way of promissory notes
                            covering collection DA and DP bills for period up to
                            120 days, including original usance period.
                            Financing of approved suppliers' invoices are also
                            permitted but at the sole discretion of the Bank
                            and pricing is at 0.25% flat for commission.

                            Interest at SBFR plus 1.25% p.a. during the term of
                            each bill.

                            Condition

                            Proceeds of invoice financing are to be paid direct
                            to suppliers and not credited to the Customer's
                            account.

3)       SGD2,000,000       For issuing standby letters of credit for a period
                            of 365 days in favour of suppliers in consideration
                            of credits terms granted to the Customer.

3a)      (SGD2,000,000)     For issuing customs and other non-shipping
                            guarantees for period not exceeding twelve months.

                            Counter indemnities to be held.

3b)      (SGD2,000,000)     For issuing advance payment guarantees / performance
                            bonds retention bonds for period not exceeding
                            twelve months.

                            Counter indemnities to be held.

<PAGE>

                                                   Standard Chartered

3c)      (SGD1,000,000)     For issuing tender bonds for period not exceeding
                            six months.

                            Counter indemnities to be held.

4)       SGD1,126,470       Paid down balance of a 4-year term loan to assist
                            the Customer in financing construction of a high
                            tension power sub-station. (Finance 80% of the
                            original amount of SGD1,615,000)

                            Interest at prime plus 1.5% p.a. payable monthly in
                            arrears to the debit of the Customer's current
                            account.

                            Tenor
                            4 years from date of first drawdown.

                            Drawdown
                            Drawdown in tranches against contractors invoices &
                            architect's certification. 3 days notice is to be
                            given to the Bank before drawdown. Loan to be fully
                            drawn by 31 December 2001.

                            Repayment
                            Repayable in 48 monthly (excluding interest).

                            First drawndown of SGD904,400 (80% of SGD1,130,500)
                            on 1 March 2001.

                            Monthly instalments of SGD18,841 each (excluding
                            interest) with effect from 31 March 2001 and a final
                            instalment of SGD18,873 (excluding interest) on 28
                            February 2005.

                            Second drawndown of SGD258,400 (80% of SGD323,000)
                            on 26 March 2001.

                            Monthly instalments of SGD5,383 each (excluding
                            interest) with effect from April 2001 to October
                            2001, thereafter monthly instalment of SGD5,517
                            (excluding interest) with effect from 30 November
                            2001 and a final instalment of SGD5,556 (excluding
                            interest) on 28 February 2005.

                            Third drawndown of SGD64,600 (80% of SGD80,750) on
                            31 August 2001.

                            Monthly instalments of SGD1,345 each (excluding
                            interest) with effect from 3 October 2001,
                            thereafter monthly instalment of SGD1,547 (excluding
                            interest) with effect from 5 December 2001 and a
                            final instalment of SGD1,577 (excluding interest) on
                            28 February 2005.

                            Amount not drawdown: SGD64,600.

                            Prepayment
                            Partial repayments will be applied in inverse order
                            of maturity and may not be redrawn. The Customer is
                            to give at least 30 days written notice before such
                            repayment is effected.

                            Cancellation Fee
                            A fee of 1% flat on the amount prepaid if full
                            prepayment is made within one year from the date of
                            first drawndown.

<PAGE>

                                                 Standard Chartered

                            Condition for Limit 4)

                            The term loan must be fully repaid in the event the
                            lease of the land known as Private Lots No. A4551 J
                            and No. A4551 K Mukirn No. 17 on which the high
                            tension power sub-station is built on is not
                            renewed.

                            Condition: For limits 1), 1a) and 4)

                            In the event that the Bank's prime rate is lower
                            than its 1-month cost of funds rate, the Bank
                            reserves the right to convert the prime rate to its
                            1 -month cost of funds rate.

                            Note:-

                            I)   Combined outstandings under limits 1) to 1b)
                                 must not exceed SGD500,000 at any one time.

                            ii)  The Bank may at any time at its sole discretion
                                 suspend the availability of prime-based funds
                                 by reason or circumstances affecting the money
                                 market including but not limited to volatile
                                 rate fluctuations or tight liquidity.

PURPOSE OF FACILITIES

The Customer shall use the Facilities solely for its working capital funding
requirements. For purposes of compliance with the provisions of Notice 757
issued by the Monetary Authority of Singapore ("MAS"), if the Customer is not a
Singapore resident (as defined in MAS Notice 757), the Customer shall inform the
Bank in advance if the Customer intends to use any of the Facilities for any of
the following purposes

..   To use Singapore dollar proceeds of any of the Facilities offshore

..   To use Singapore dollar proceeds of any of the Facilities for investment in
    S$ financial assets or real estate in Singapore.

..   To transact a Singapore dollar FX swap or cross currency swap for the
    purpose of hedging any investment in S$ financial assets or real estate in
    Singapore.

..   To transact any S$ cross currency swap or S$ currency option otherwise than
    for hedging its exchange rate and/or interest rate risks arising from trade
    with, or economic and financial activities in, Singapore

Use of the Facilities for any such purpose will be subject to further conditions
in accordance with MAS Notice 757.

SECURITY

Security for the above Facilities and for facilities which may be extended by
the Bank to the Customer from time to time :-

1)   Registered charge over fixed deposits of SGD2,000,000 or its equivalent in
     the name of the Customer and supported by a board resolution.

2)   Existing corporate guarantee for SGD2,500,000 executed by Trio-Tech
     International USA and supported by a board resolution.

3)   Existing registered fixed charge over high tension power sub-station
     located at Mukim No. 17 Lots No. A4551 J and No. A4551 K.

<PAGE>

                                                        Standard Chartered

     Fire insurance policy covering the above asset for the full reinstatement
     value with the Bank's interest indicated as mortgagee thereon including
     mortgagee, non-cancellation and reinstatement value clauses and premium
     paid receipt are to be lodged with the Bank.

 CONDITIONS

1    Loans to parent company Trio-Tech International USA (directly and
     indirectly) and associated companies must not exceed SGD3,500,000 at all
     times.

2)   The Customer is to maintain a minimum networth of SGD6,000,000 at all
     times.

     Networth is defined as the aggregate of paid-up capital and revenue
     reserves, excluding revaluation reserves and deducting any loans made to
     the directors in their personal capacities or to the parent company,
     Trio-Tech International USA directly and indirectly or other related
     companies and other intangible assets.

3)   Gearing ratio of Trio-Tech International Pte Ltd (Singapore) is not to
     exceed 1. Gearing ratio is defined as total external debts : networth.

4)   Any dividends to be declared are subject to prior written consent from the
     Bank which will not be unreasonably withheld.

5)   The Customer is to submit to the Bank its quarterly management accounts and
     its operating subsidiaries including Trio-Tech International (M) Sdn Bhd,
     Trio-Tech (KL) Sdn Bhd and Trio Tech International (Bangkok) Co. Ltd.

6)   The Customer is to submit to the Bank its quarterly lists of stocks and
     ageing debtors (trade and non-trade, including related company debts) and
     stocks are subject to periodic inspection by the Bank's officers.

INTEREST

The Bank's Singapore Dollar and United States Dollar prime lending rates are
currently 5.75% p.a. and 6% p.a. respectively and are subject to fluctuation
without prior notice but the rates and any changes thereto are notified in the
press and are featured in the Bank's statements of account and on notices
displayed at the Bank's branches.

The Bank's Standard Bills Finance Rate (SBFR) for all Trade Finance related
loans is also subject to fluctuation without prior notice and will be determined
by the Bank according to market forces but the prevailing rate and any changes
thereto are featured in the Bank's Trade Finance statements and are available on
request from our Trade Customer Services Centre. The SBFR for Singapore Dollar
denominated Trade loans is currently 5.75% p.a. and for Foreign Currency Trade
loans is the respective currency's local inter-bank offer rate or Cost of Funds
(i.e. SIBOR) for three months or such other period as the Bank in its discretion
may consider appropriate.

DISCLOSURE

The Customer hereby consent to Standard Chartered Bank, Singapore, its officers
and agents disclosing information relating to the Customer and the Customer's
account or dealing relationship with the Bank, including but not limited to
details of the Customer's Facilities, any security taken, transactions
undertaken and balances and positions with the Bank, to (i) the head office of
the Bank, any of its representative and branch offices in any jurisdiction,
related corporations and its agents and independent contractors who are under a
duty of confidentiality to the Bank; (ii) any potential assignee of the Bank or
other participant in any of its rights and/or obligations in relation to the
Customer's Facilities and (iii) any guarantors, third party pledgors or security
providers.

<PAGE>

                                                        Standard Chartered

MAS NOTICE 757

Pursuant to MAS Notice 757, S$ credit facilities extended to non-residents and
S$ financial derivatives transacted with non residents are subject to
conditions. The following is a summary of the main conditions under MAS Notice
757.

1.   S$ dollar credit facilities must not be used to speculate in S$ in the
     currency markets.

2.   Proceeds of credit facilities extended in Singapore dollars that exceed S$5
     million in aggregate are subject to the following conditions:

     (a)  where the S$ proceeds are to be used offshore, the proceeds must be
          swapped into foreign currency upon drawdown. The proceeds may not be
          sold outright in the spot or forward market.

     (b)  where the S$ proceeds are to be used to finance (or, in the case of FX
          swaps or cross currency swaps, to hedge) investments in financial
          assets or real estate the relevant facility must be repaid (or, in the
          case of FX swaps or cross currency swaps, the relevant transaction
          must be closed out) if the investments are in any way converted into
          S$ cash proceeds.

3.   cross currency swaps under which the Customer borrows Singapore dollars may
     only be entered into for the purpose of hedging the Customer's S$ exchange
     rate and interest rate risks arising from trade with, or economic and
     financial activities in, Singapore

4.   S$ currency options may only be entered into for the purpose of hedging the
     Customer's S$ exchange rate risks arising from trade with, or economic and
     financial activities in, Singapore and are subject to the following
     additional conditions:

     (a)  each option must have cashflows matching the S$/foreign currency flows
          upon exercise and the Customer must provide documentary evidence of
          such cashfiows; and

     (b)  options must not be combined with a spot or any other transaction to
          constitute a S$ credit facility that would not be permitted under MAS
          Notice 757.

Any transactions that do not comply with the conditions set out above must be
approved in advance by the MAS

For the purposes of MAS Notice 757, "credit facilities" includes, without
limitation, loans, bank guarantees or other contingent lines, FX swaps, cross
currency swaps and repurchase agreements.

For the purposes of MAS Notice 757 a company is a Singapore resident only if:

(1)  it is at least 50% owned by Singapore citizens (irrespective of its place
     of incorporation); or

(2)  it is a financial institution operating in Singapore and is governed under
     MAS Notice 757 or its equivalent

The Customer undertakes to notify the Bank immediately in the event of any
change, whether direct or indirect, in its shareholding, ownership or control
that may affect its residence status for the purposes of MAS Notice 757and
covenants that it will comply with the above conditions at all times.

ACCEPTANCE

This offer will remain open for acceptance for a period of thirty days from the
date of this letter, after which time it will lapse unless an extension has been
agreed by the Bank in writing.

<PAGE>

                                                        Standard Chartered

To confirm your acceptance of this offer, please return the attached duplicate
copy of this letter duly signed in acceptance and in accordance with the board
resolution passed on 29 June 2001 to:

                    Standard Chartered Bank
                    Corporate & Institutional
                    Credit Operations
                    I Tampines Central 5
                    #03-00 CPF Tarnpines Building
                    Singapore 529508

                    Attention           :    Ms Anna Hee

This Facility letter supersedes all previous Facility letters.

AVAILABILITY

In accordance with normal banking practice, the Facilities are made available
solely at the discretion of the Bank and are subject to repayment on demand by
the Bank.

Without prejudice to this obligation of the Customer, the Facilities shall be
subject to review by the Bank from time to time.

We are pleased to make this offer of banking arrangements and look forward to
receiving your formal acceptance in due course.

Yours faithfully
For and on behalf of
Standard Chartered Bank

/s/ Laurence Goh
----------------------------
Laurence Goh
Deputy Head
Corporate Financial Services

We confirm the Customer's acceptance of the Facilities on the terms and
conditions outlined in this letter dated 19 November 2001:-

/s/ Yong Siew Wai

____________________________________________________
for and on behalf of Trio-Tech International Pte Ltd<PAGE>

10.17    Credit Facility Letter dated July 24, 2002, between Trio-Tech
         International Pte. Ltd. and OCBC Bank.

                Oversea-Chinese Banking      Tel (65) 6535 7222
                Corporation Limited          Fax (65) 6533 7955
                65 Chulia Street             www.ocbc.com
                OCBC Centre
                Singapore 049513

OCBC Bank

    Our Ref : LKW/in/Trio-Tech/Jul 02

    24 July 2002

   Trio-Tech International Pte Ltd                        PRIVATE & CONFIDENTIAL
   1008 Toa Payoh North
   #03-09
   Singapore 318996

   Dear Sir

   BANKING FACILITIES

   Following a review of your account, we are pleased to advise that
   Oversea-Chinese Banking Corporation Limited (hereinafter called "The Bank")
   has agreed to extend to your company the revised credit facilities totalling
   S$8,000,000/- (Singapore Dollars Eight Million Only) (hereinafter called "the
   Facilities") as stated below, subject to satisfactory completion of
   documentation, legal or otherwise and upon the following terms and
   conditions: -

   1 .      LIMITS/QUANTUM

   (a)      Overdraft                                   S$1,000,000/

   (b)      Letter of Credit                            S$1,000,000/-
            (For establishing irrevocable sight and/or usance Letters of Credit
            up to 60 days or such other period as notified by the Bank to the
            Borrower)

            Within Letter of Credit Limit : S$1,000,000/-

            Trust Receipts (S$1,000,000/-) under LC and collection bills (For
            issuing Trust Receipts up to 120 days. The combined tenor for usance
            Letters of Credit and Trust Receipts issued thereunder shall not
            exceed 120 days or such other period as notified by the Bank to the
            Borrower)

            Shipping Guarantee                          (S$1,000,000/-)
            under LC and collection bills/
            Airway Bill

            Draft Loan (S$1,000,000/-) (For financing of collection bills and
            invoices up to 120 days or such other period as notified by the Bank
            to the Borrower)

   (c)     Account Receivables Financing -             S$4,500,000/-
           (Tenor : up to 90 days or such other period as notified by the Bank
           to the Borrower)

   (d)      Foreign Exchange                           S$5,000,000/-
           (For spot and forward contracts up to 6 months or such other period
           as notified by the Bank to the Borrower.)

   (e)     Term Loan                                   S$1,000,000/-
           (Tenor : 3 years)

<PAGE>

OCBC Bank                                                                      2

    Trio-Tech International Pte Ltd              PRIVATE & CONFIDENTIAL
    OUR REF: LWK/in/Trio-Tech/Jul 02

    2.      PURPOSE

            OD /LC/TRC/             -  For your working capital requirements and
                                       trade financing requirements.
            SGC/AWB/DL/
            ARF

            TL                      -  To finance Trio-Tech International Pte
                                       Ltd's purchase of 30 units of cooling
                                       systems and other equipment supplies for
                                       testing and Advance Micro Device ("AMD")
                                       chips, K8.

    3.      PRICING

    (a)     Overdraft               -  1. 125% p.a. over the Bank's prevailing
                                       prime lending rate calculated on daily
                                       balance with monthly rests.

    (b)     Letter of Credit        -  Letter of Credit commission at 1/8% per
                                       month, minimum 2 months on the amount of
            Letter of Credit for amount less than or equal to S$200,000/- or at
            1/16% per month, minimum 2 months on the  amount of Letter of Credit
            for amount more than S$200,000/-.

    (c)     Trust Receipts          - (i)    0.625% per annum over the Bank's
                                             prevailing prime lending rate
                                             under LC and calculated on daily
                                             balance with monthly rests for
                                             Singapore collection bills/ Dollars
                                             financing.

            Draft Loan                (ii)   2.5% per annum above the Bank's
                                             prevailing Singapore Interbank
                                             Offered Rate (SIBOR) as determined
                                             by the Bank for Foreign Currencies
                                             financing.

   (d)      Shipping Guarantee - As per the Bank's Schedule of Charges under LC
            and collection bills/Airway Bill

   (e)      Accounts                   (i)   0.625% per annum over the Bank's
                                             prevailing prime lending rate
            Receivable Financing             calculated on daily balance with
                                             monthly rests for Singapore Dollars
                                             financing.
                                       (ii)  2.5% per annum above the Bank's
                                             prevailing Singapore Interbank
                                             Offered Rate (SIBOR) as determined
                                             by the Bank for Foreign Currencies
                                             financing.

   (f)      Term Loan                  0.5% p.a. over the Bank's prevailing
            prime lending rate calculated on daily balance with monthly rests.

   4.       SECURITY/SUPPORT (collectively "the Security")

            The Facilities and all monies owing shall be secured by existing
            charge over all the company's accounts receivables excluding
            Catalyst Semiconductor, present and future. [Registered].

<PAGE>

OCBC Bank                                                                      3

     Trio-Tech International Pte Ltd               PRIVATE & CONFIDENTIAL
     OUR REF: LWK/in/Trio-Tech/Jul 02

     5.   AVAILABILITY OF FACILITIES AND DRAWDOWN

     5.1  The Facilities will be available for your use upon completion of all
          matters and documentation to the satisfaction of the Bank, and upon
          receipt of the following (where applicable) in form and substance
          acceptable to the Bank, including but not limited to:

     (a)  Copy of your Certificate of Incorporation and Memorandum and Articles
          of Association and that of the guarantors, mortgagors, third party
          depositors and any persons (other than you) providing security for the
          Facilities (collectively "the Surety"), certified as a true copy by a
          Director or the Company Secretary.

     (b)  Copy of your Board Resolutions and that of the Surety, if a
          corporation, in the Bank's prescribed format and duly certified as a
          true copy by a Director or the Company Secretary

     (c)  All security documents duly executed and duly stamped (where
          applicable).

     (d)  Term Loan Agreement duly executed.

     (e)  The Foreign Exchange facility is subject to foreign exchange
          availability which is determined solely by the Bank. Before a forward
          contract is rolled over on maturity, you will cover the unrealised
          loss, if any. The Bank reserves the right to deliver funds only upon
          receipt of funds by the Bank.

     (f)  The Bank's margin of advance will be 80% of the respective net invoice
          values for approved debtors.

     5.2  You shall provide any other document(s) as may be required by the Bank
          from time to time and adhere to and abide by all other conditions
          precedent as the Bank may in its sole discretion impose.

      6.  REPAYMENT

     (a)  The Term Loan Facility is to be repaid by 36 equal monthly principal
          instalments of S$30,195-90 each. The first principal instalment shall
          commence on the first day of the following month from the date of
          first disbursement of the loan. Interest is to be serviced monthly.

     (b)  The Overdraft is subject to monthly or such other periodic interest
          servicing as the Bank may specify and is repayable on demand.

     7.   PREPAYMENT

          If the Term Loan Facility is fully repaid within the first 24 months,
          a prepayment fee of 1 % flat will be charged on the amount prepaid in
          addition to any break funding cost. The prepayment fee will be waived
          if prepayment occurs after 24 months, source of repayment is from new
          private equity funds raised and with evidence satisfactory to the
          Bank.

<PAGE>

OCBC Bank

                                                                               4

   Trio-Tech International Pte Ltd                    PRIVATE & CONFIDENTIAL
   OUR REF: LWK/in/Trio-Tech/Jul 02

   8.      OTHER FEES

           A cancellation fee of 0.125% flat will be charged on the unused
           portion of the Term Loan Facility and payable at the end of the Term
           Loan Facility availability period. Any portion of the Term Loan
           Facility not utilised by the end of the Term Loan Facility
           availability period shall be cancelled.

   9.      DEFAULTINTEREST

           Default interest shall be payable at the rate of 4.75% over the
           Bank's prime rate prevailing from time to time or such other rates as
           may be determined by the Bank in its sole discretion on the
           following:-

   (a)     any part of the Facilities that is not paid on due date or upon
           demand, as the case may be; and

   (b)      any utilisation in excess of the approved limit of the Facilities.

   10.     FINANCIAL COVENANTS

   (a)     Negative Pledge

           Save for charges, assignments or encumbrances which are currently
           subsisting and which have been previously disclosed to the Bank in
           writing, no further charges, assignments or encumbrance whatsoever
           are to be created over any of your present or future assets as long
           as any facilities are outstanding from you to the Bank, except with
           the Bank's prior written consent which shall not be unreasonably
           withheld.

           The negative pledge covenant shall be waived for new machinery and
           equipment to be acquired by the company that are in line with its
           core business activity

   (b)     Your networth is to be maintained at not less than S$10,000,000/-.
           Networth is defined as the sum of your paid-up capital, retained
           earnings, revaluation surplus and directors' and shareholders' loans
           less borrowings.

   (c)     Your total liabilities to tangible networth shall be less than 2.5x
           at all times.

   11.     CONDITIONS FOR ACCOUNTS RECEIVABLE FINANCING

           Financing of Accounts Receivable is/are restricted to Advanced Micro
           Devices Singapore Pte Ltd, Agilent Technologies (S) Pte Ltd, Infineon
           Technologies Asia Pacific Pte Ltd, Broadcom Singapore Pte Ltd, Robert
           Bosch (M) Sdn Bhd, Avimo Electro-Optics Pte Ltd, Analog Devices
           Taiwan Inc, Motorola Technology Sdn Bhd, Seagate Technology
           International Pte Ltd, ASAT Ltd, Intersil Services Company Sdn Bhd,
           National Semiconductor Manufacturing (S) Pte Ltd, ST Microelectronics
           Pte Ltd, Hewlett Packard Singapore Pte Ltd.

<PAGE>

OCBC Bank                                                                      5

    Trio-Tech International Pte Ltd                  PRIVATE & CONFIDENTIAL
    OUR REF: LWK/in/Trio-Tech/Jul 02

    12.     CONDITIONS FOR DRAFT LOAN

    (a)     Financing of Draft Loan is/are restricted to Yamaichi Electronics
            Singapore Pte Ltd, Future Electronics Inc, Votsch Indusrietechnik
            GmhH, Spire Technologies Pte Ltd, Technitron Inc, Lambda EMI,
            Al-Tech Instrumentation & Engineering Pte Ltd, Ling Electronics Inc,
            Incal Technology Inc, P.K. Wong Engineering & Trading Co.

    (b)     Presentation of invoice from the supplier for the purchase of goods,
            to the Bank with a letter confirming that you have not obtained
            financing of goods from other financial institution.

    (c)     The financing proceeds will be paid directly to the supplier.

    13.     CONDITIONS FOR 3-YEARS TERM LOAN

    (a)     The Term Loan shall be disbursed against 90% of original invoices or
            up to S$1,000,000-00 whichever is lower and upon completion of all
            documentation, legal or otherwise.

    (b)     The Term Loan shall be disbursed against 90% of invoice value from
            Trio-Tech International Pte Ltd's suppliers including Honeywell Pte
            Ltd and other equipment suppliers for the testing of K8. Payment to
            be made directly to the suppliers or if payment of the cooling
            systems have already been paid by Trio-Tech International Pte Ltd,
            reimbursement can be sought subject to presentation of original
            invoices and evidence of payment satisfactory to the Bank.

    14.     OTHERS TERMS & CONDITIONS

   (a)      Debtors' Ageing List is to be provided to the Bank on quarterly
            basis or at such time as requested by the Bank from time to time.

   (b)      Unutilised Letter of Credit/Trust Receipt under Letter of Credit or
            collection bills and Draft Loan can be converted for Accounts
            Receivable Financing usage.

   To the extent that the same are not inconsistent with the express terms
   herein, the Bank's Standard Terms and Conditions Governing Banking Facilities
   and any amendments, supplements or replacements thereto from time to time
   shall form part of and be deemed to be incorporated in this offer.

   The Bank reserves the right to request you, from time to time, to furnish it
   with documentary evidence (in form and substance acceptable to the Bank)
   showing your compliance with all the terms and conditions required by the
   Bank and to execute any further document(s) deemed necessary by the Bank.

   This Letter of Offer shall cancel all the previous Letters of Offer.

   We trust that the above terms and conditions are acceptable to you. This
   offer will lapse after 21 days from the date of this Facility Letter, unless
   otherwise arranged.

<PAGE>

OCBC Bank                                                                      6

   Trio-Tech International Pte Ltd                   PRIVATE & CONFIDENTIAL
   OUR REF: LWK/in/Trio-Tech/JuI 02

Please signify your acceptance by signing and returning to us the duplicate copy
of this Facility Letter together with a certified copy of your Board
Resolution(s) in the form attached.

We are pleased to be of service to you and look forward to hearing from you in
due course.

Yours faithfully
for OVERSEA -CHINESE BANKING CORPORATION LIMITED

/s/: Leong Koon Weng                                          /s/: Woo Siew Fook

___________________________                                   __________________

Leong Koon Weng                                               Woo Siew Fook
Senior Relationship Manager                                   Business Head
Enterprise Banking                                            Enterprise Banking

We hereby accept the Facilities on the terms and conditions contained in this
Facility Letter and in the Standard Terms and Conditions Governing Banking
Facilities.

/s/: Yong Siew Wai

____________________________________________________

For and on behalf of Trio-Tech International Pte Ltd
Name of Authorised Signatory(ies): Yong Siew Wai
Date: 1/st/ August 2002

<PAGE>

TRIO-TECH INTERNATIONAL PTE LTD
(Incorporated in Singapore) -

WE, THE UNDERSIGNED, BEING ALL THE DIRECTORS OF THE COMPANY, DO ON THIS DATE,
AGREE AND CONSENT TO PASS THE FOLLOWING RESOLUTION AS DIRECTORS' RESOLUTION IN
WRITING

IT WAS NOTED THAT Oversea-Chinese Banking Corporation Limited ("OCBC") has
agreed to grant to the Company credit facilities in an amount not exceeding SGD
8,000,000 ("the Facilities") on the terms and conditions of OCBC's Facility
Letter dated 24 July 2002.

IT IS RESOLVED -

ACCEPTANCE OF CREDIT FACILITIES

1.   That the Company do accept the Facilities on the terms and conditions
     mentioned in the Facility Letter.

2.   That Mr Yong Siew Wai as authorised by the Company be and is hereby
     authorised on behalf of the Company:-

     (a)  to sign the Facility Letter, all security and/or collateral documents,
          any forms, notices, instruments and all documents in connection with,
          incidental or ancillary to the Facilities and to approve any
          amendment, alteration or modification to the same and to sign all
          instruments and all relevant documents in relation thereto;

     (b)  to approve and accept any revision or variation to the terms of the
          Facility Letter or any increase in, revision or restructuring of the
          Facilities and to sign all supplemental facility letters, security
          and/or collateral documents, any forms, notices, instruments and all
          documents in relation thereto; and

     (c)  to exercise all discretion and to do all acts and things necessary or
          expedient in relation to the Facilities and to give effect to all
          other matters referred to in these resolutions.

3.   That the Common Seal of the Company be and is hereby authorised to be
     affixed, where required, to all documents and instruments in connection
     with the Facilities in accordance with the Articles of Association of the
     Company.

Dated this 1 August 2002

/s/: Yong Siew Wai                                  /s/: A Charles Wilson

_______________________                             ____________________________

YONG SIEW WAI                                       A CHARLES WILSON
Director                                            Director

<PAGE>

TRIO-TECH INTERNATIONAL PTE LTD                                             OCBC
(Incorporated in Singapore)

CERTIFIED EXTRACT OF THE DIRECTORS' RESOLUTION IN WRITING DULY PASSED ON 1
AUGUST 2002

IT WAS NOTED THAT Oversea-Chinese Banking Corporation Limited ("OCBC") has
agreed to grant to the Company credit facilities in an amount not exceeding SGD
8,000,000 ("the Facilities") on the terms and conditions of OCBC's Facility
Letter dated 24 July 2002.

IT IS RESOLVED -

ACCEPTANCE OF CREDIT FACILITIES

1.   That the Company do accept the Facilities on the terms and conditions
     mentioned in the Facility Letter.

2.   That Mr Yong Siew Wai as authorised by the Company be and is hereby
     authorised on behalf of the Company:-

     (a)  to sign the Facility Letter, all security and/or collateral documents,
          any forms, notices, instruments and all documents in connection with,
          incidental or ancillary to the Facilities and to approve any
          amendment, alteration or modification to the same and to sign all
          instruments and all relevant documents in relation thereto;

     (b)  to approve and accept any revision or variation to the terms of the
          Facility Letter or any increase in, revision or restructuring of the
          Facilities and to sign all supplemental facility letters, security
          and/or collateral documents, any forms, notices, instruments and all
          documents in relation thereto; and

     (c)  to exercise all discretion and to do all acts and things necessary or
          expedient in relation to the Facilities and to give effect to all
          other matters referred to in these resolutions.

3.   That the Common Seal of the Company be and is hereby authorised to be
     affixed, where required, to all documents and instruments in connection
     with the Facilities in accordance with the Articles of Association of the
     Company.

                                                       CERTIFIED TRUE COPY

                                                       /s/: Yong Siew Wai
                                                       -------------------------
                                                       Director

                                                       /s/: A Charles Wilson
                                                       -------------------------
                                                       Director/Secretary

Delete where inapplicable

<PAGE>

     TRIO-TECH

     INTERNATIONAL
     PRIVATE LIMITED

     14 August 2002

     Oversea-Chinese Banking Corporation Limited
     65 Chulia Street
     OCBC Centre
     Singapore 049513
     Attn: Mr. Tan Ngee Piang
     Tel: 6559 6910
     Fax: 6226 8719

     Dear Sirs,

     BANKING FACILITIES LETTER (YOUR REF:LKW/in/Trio-Tech/Jul 02)

     We refer to the above-mentioned; we hereby attached the following document
     for your action: -
        1. Banking Facilities Letter (Your Ref:LKW/in/Trio-Tech/Jul 02) Dated
           24th July 2002.
        2. Directors' Resolution for acceptance of credit facilities dated 0
           August 2002
        3. Certified Extract of the Directors' Resolution passed on 1/st/ August
           2002

     Kindly acknowledge receipt of this letter and documents attached by signing
     and returning duplicate copy of this letter to us at address mentioned
     below or fax it to us via fax no: 6259 6355.

     Should you need any clarification please do not hesitate to contact Ms.
     Wong Yung Sung at telephone number 63549790.

     Thank you.

     Yours faithfully,
     For Trio-Tech International Pte Ltd

       /s/: Victor Ting Hock Ming
     ----------------------------
     Victor Ting
     Vice President, CFO

VT/wys

<PAGE>

            Oversea-Chinese Banking      Tel (65) 6535 7222
            Corporation Limited          Fax (65) 6533 7955
            65 Chulia Street             www.ocbc.com
            OCBC Centre
            Singapore 049513

CBC Bank

22 August 2002

Trio-Tech International Pte Ltd                         Private And Confidential
1008 Toa Payoh North
#03-09
Singapore 318996

Dear Sir

BANKING FACILITIES

We refer to our Letter of Offer dated 24 July 2002.

Please be advised that the pricing (paragraph 3 [b] and repayment (paragraph
6[a]) of facilities should be read as follows :

3.     PRICING

   (b)  Letter of Credit - Letter of Credit commission at 1/8% per month,
        minimum 2 months on the amount of Letter of Credit for amount less than
        S$200,000/- or at 1/16% per month, minimum 2 months on the amount of
        Letter of Credit for amount more than or equal to S$200,000/-.

6.      REPAYMENT

   (a)  The Term Loan Facility is to be repaid by 36 equal monthly principal and
        interest instalments of S$30,195-90 each. The first principal instalment
        shall commence on the first day of the following month from the date of
        first disbursement of the loan. Interest is to be serviced monthly.

All the other terms and conditions remain the same.

We are pleased to be of service to you and look forward to hearing from you in
due course.

Yours faithfully
For OVERSEA-CHINESE BANKING CORPORATION LIMITED

/s/: Leong Koon Weng                            /s/: Woo Siew Fook

________________________________                ________________________________

Leong Koon Weng                                 Woo Siew Fook
Senior Relationship Manager                     Business Head
Enterprise Banking (Electronics)                Enterprise Banking (Electronics)

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