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                                                                    EXHIBIT 4.19

                                  TRANSLATION

                               TENANCY AGREEMENT

Party A:     DongGuan Houjie Town Chong Hing Trading Company

Party B:     Jetcrown Industrial (DongGuan) Limited

        Through the sufficient negotiation of Party A and Party B and according
to the principles of fairness and mutual benefit, the Parties agree to sign the
following terms and conditions:

        1.      THE LOCATION AND AREA OF THE FACTORY:

        Party A will provide a block of industrial building with an area of
        5,119 square meters; a block of dormitory with an area of 2,054 square
        meters; a electricity room with an area of 112 square meters at
        Huangguan Industrial Estate "Ma Tsui" (a local name), (the total area
        of factory, dormitory and electricity room is 7,284 square meters in
        total) to Party B for running his manufacturing production of
        electronics, plastics and metal precision etc.

        2.      TENANCY PERIOD AND RENTAL AMOUNT

        The factory and dormitory provided by Party A will be charged at a unit
        rate at DOLLARS EIGHT AND FIFTY CENTS RENMINBI (RMB8.50) per square
        meter per month. The tenancy period is four years, i.e. from August 1,
        2000 to July 30, 2004. Party A agrees to hand over the said factory to
        Party B before the end of May. Party B can prepare his planning and
        renovation works during June and July. Rentals shall be paid in arrears
        and on or before the 10th day of each month. If the rental becomes
        overdue, Party A is entitled to charge a penalty (the penalty is
        calculated based on a daily rate of 0.1% on the amount overdue).

        At signing this agreement, Party B should pay DOLLARS TWO HUNDRED
        THOUSAND RENMINBI (RMB200,000.00) to Party A as a deposit for hiring the
        factory. This deposit will be used to setoff the rental during the
        latter period of the agreement. If Party B cancel this agreement before
        its starting date, this deposit will be used to compensate Party A's
        loss and Party A will not refund it any more. On the other hand, after
        receiving the deposit, Party A cancel this agreement, he should
        compensate a sum which equals to two times the deposit to Party B.

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        3.      RESPONSIBILITIES OF BOTH PARTIES:

                1.      Party A should help Party B zealously in handling all
                        kinds of affairs and procedures during the production
                        and development processes. Party B should comply with
                        the Government Policy, exercising the management system
                        of the local city and town governments. Party B should
                        pay all kinds of tax and other charges of the relevant
                        government departments. Party B should also ensure its
                        production is in a safe manner.

                2.      Before hand over the factory to Party B, Party A should
                        provide water and electricity to the enclosing wall of
                        the factory. The other relating facilities will be
                        responsible by Party B. Party B should purchase estate
                        insurance for the factory and facilities according to
                        the country's relevant Enterprise Management Regulation.

                3.      During the process of production and running business,
                        if Party B wants to alter the existing factory
                        structure, he should negotiate with Party A first. If
                        the damage of the factory is due to Party B's usage, he
                        should be held responsible to repair it. If there is an
                        occurrence of any natural disasters, and as a result,
                        the factory was damaged, it will be solved by both
                        parties.

        4.      During the tenancy period, Party B has the right to sublet the
                factory. Party B should make sure Party A can receive the rental
                as agreed in the agreement on time.

        5.      The aforementioned agreement is certified by both parties and it
                takes effect from the date they signed it. This agreement is in
                duplicate, both Party A and B will have one copy which are of
                equal validity.

Party A : DongGuan Houjie
          Town Chong Hing
          Trading Company
Representative : Leung Chong Chik

Party B : Jetcrown Industrial (DongGuan)
          Limited

Representative: Kam Wai Yip

                              Date of signing the agreement: May 11, 2000

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                        SUPPLEMENTARY TENANCY AGREEMENT

Party A:     DongGuan Houjie Town Chong Hing Trading Company

Party B:     Jetcrown Industrial (DongGuan) Limited

        Party A will provide additional area of factory situates at Huangguan
Industrial Estate "Wa Tsui" (a local name) to Party B. The additional area is
as follows:

1.      Area of passage in front of l/F of factory : 8 x 12 = 96 square meters

2.      Door Security Guard Room Area: 2 x 5 = 10 square meters

The additional area is 106 square meters in total

        The rental for the aforementioned additional area is calculated at
DOLLARS EIGHT AND CENTS FIFTY RENMINBI (RMB 8.50). The tenancy period is four
years as well, starting from August 1, 2000 to July 30, 2004.

Party A : DongGuan Houjie
          Town Chong Hing
          Trading Company

Representative : Leung Chong Chik

Party B : Jetcrown Industrial (DongGuan)
          Limited

Representative: Kam Wai Yip

                         Date of signing the agreement: August 23, 2000TRANSLATION

                                                  Date: July 18, 2000

To:     DongGuan Houjie Town Huangguan Industrial Estate Committee
        Wan Pui Ming Secretary

From:   Jetcrown Industrial (DongGuan)Limited
        Construction Works - General Manager: Mr. Ng Kang Chuen

C.C.:   Board of Directors - Jetcrown Industrial Limited

                             SUPPLEMENTARY AGREEMENT

        At the end of last year, through the recommendation of DongGuan Houjie
Town Huangguan Industrial Estate Committee, our Company purchases a land, which
is formerly known as "Kam Ngai Po Garden" with an area of 117,966 square meters.
The related party of the Village agrees to assist to apply for a land use
permit. However, the application is not yet successful after several months.

        Recently, Wan Pui Ming, the Secretary, gave a reply to the manager of
our company, Mr. Kam, that the land use permit should be ready before August,
2000.

        In order to complete the construction work earlier, our Company had
already invested a certain sum in the area of leveling the land.

        With an authorization from the board of directors of our Company,
together with the negotiations between Wan, the Secretary and Mr. Kam, we agree
that if the related party of the Village cannot complete the land use permit
application within a reasonable time, the DongGuan Houjie Town Huangguan
Industrial Estate Committee shall compensate our Company a sum including the
deposit paid by our Company and our investment on the construction work. We set
out August 31, 2000 shall be the time limit of a reasonable time. This
supplementary agreement will become a valid legal document after signed by the
representatives of both parties.

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                                  TRANSLATION

                     "RIGHT OF LAND USE" TRANSFER AGREEMENT

Party A :     DongGuan Houjie Town Huangguan Industrial Estate Committee

Party B :     Jetcrown Industrial (DongGuan) Limited

        Through the sufficient negotiation of Party A and Party B and according
to the principles of fairness and mutual benefit, the Parties agree to sign the
following terms and conditions, to lay out the responsibilities of both parties
regarding the sale of land to Party B as an industrial land. Both parties will
comply with this agreement.

1.      Location, time and consideration

        Party A will sell the land which situates at the formerly known as Kam
        Ngai Po Garden of Huangguan Industrial Estate Committee to Party B so as
        to treat as the factory premise. Construction area is 117,978 sq.m. (The
        exact area and location will be according to that of the formerly Kam
        Ngai Po Garden of Houjie Real Property Company and Kam Ngai Po Company).
        The period is 50 years (according to the time limit of the Land Permit),
        roughly from January 1, 2000 to December 31, 2049. The consideration
        involved is DOLLARS ONE HUNDRED THIRTY FIVE RENMINBI (RMB 135.00) per
        square meter, the total consideration is DOLLARS FIFTEEN MILLION NINE
        HUNDRED TWENTY SEVEN THOUSAND AND THIRTY RENMINBI (RMB 15,927,030.00).

2.      The collection method of management fee

        The management fee for industrial used land is at CENTS EIGHTY RENMINBI
        (RENMINBI 0.80) per square meter. The payment will be made at once per
        quarter, in other words, the Party B should pay the management fee for
        the previous quarter on or before 10th of the first month of each
        quarter. If Party B pay the fee after the deadline, Party A reserves the
        right to charge a penalty which equals to 0.5% on the total overdue
        amount. The management fee will be increased by 7% for every 5 years.

3.      Responsibilities of both parties

        (1)     Party B will be responsible to the property on the industrial
                land. Other than that, Party B will be responsible to install
                the water and electricity facilities. Regarding this area, Party
                A will be responsible to provide assistance and cooperation so
                as-to achieve the "San Tone Yat Ping".

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        (2)     During running the business, Party B should ensure safe
                production, running its business in a civilize manner, and he
                should obey the relevant rules, regulations and policies of the
                country, city and town. He should also pay the relevant tax of
                the department. In addition, he should purchase insurance policy
                for the factory workers. He should take the initiative to take
                part of the local welfare activities.

        (3)     On signing the contract, Party B should pay 10% of the total
                consideration, ie. DOLLARS ONE MILLION FIVE HUNDRED NINETY TWO
                THOUSAND SEVEN HUNDRED AND THREE RENMINBI (RMB 1,592,703.00) to
                Party A as the deposit Then Party A should arrange the sale of
                the Land Permit. Party B should pay 15% of the total
                consideration within 3 weeks after the sale of the Land Permit,
                that is DOLLARS TWO MILLION THREE HUNDRED EIGHTY NINE THOUSAND
                FIFTY FOUR AND CENTS FIFTY RENMINBI (RMB 2,389,054.50) to Party
                A. The balance payment should be paid within the forthcoming
                five weeks. If Party B cannot pay up the total consideration
                before the due date, Party A will treat it as the termination of
                contract automatically and he will repossess the land. The
                amount paid by Party B before will be treated as loss
                compensation and Party A will not refund it then. If Party A
                cannot arrange the transfer of Land Permit, the total deposit
                will be refunded to Party B. Regarding the handling charge of
                transfer the Land Permit, Party B will be held fully
                responsible. The related charges of the Country Land Department
                will be paid by Party B directly.

        (4)     Within 24 months from signing the contract, Party A will not
                charge management fee as this period will be treated as
                construction period. The pathway along the riverside having 900
                meters length and 15 meters breadth will be designed by Party A
                and Party B will be responsible to pay the charges on
                construction of roads, pedestrians and drainage. From January 1,
                2002 to December 31, 2002, Party A will charge a yearly
                management fee DOLLARS SIX HUNDRED THOUSAND RENMINBI
                (RMB 600,000.00). The yearly management fee for 2003 and 2004
                will be DOLLARS SIX HUNDRED SEVENTY THOUSAND RENMINBI
                (RMB 670,000.00). From 2005 onwards, the management fee will be
                DOLLARS ONE MILLION ONE HUNDRED FIFTY THOUSAND RENMINBI
                (RMB 1,150,000.00) per year. The management fee will be
                increased by 10% for every five years.

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        (5)     During the contract period, if Party B requires to transfer the
                property right to third party, he should then inform Party A.
                Party B should also sign a contract with third party which
                requires third party to comply with the terms and conditions of
                the original contract. They should complete all the related
                procedures on transfer of contract.

        (6)     Upon the expiry of the contract, the relevant buildings and the
                water and electricity facilities and other immovable properties
                belong to Party A unconditionally.

        (7)     Party B can run one or more than one enterprises on the land.
                Party A should help out to set up the enterprise. Party A will
                delegate staff to act as the plant manager, declaration officer,
                accountant and cashier etc. of each enterprise so as to assist
                the enterprise to carry out the factory management. The salaries
                and wages of the staff will be paid by Party B. During the
                tenure period, Party B reserves the right to request Party A to
                replace the staff if he finds that they are unsuitable to the
                posts.

4.      Others

        (1)     During the contract period, if the superior department wants to
                take requisition of this land because of the establishment
                planning needs, then the compensation for the building on the
                land belongs to Party B. In addition, the compensation for the
                land belongs to Party B. On the other hand, the compensation for
                the "San Tone Yat Ping" etc. foundation facilities, land
                management fee and the land subsidy compensation to peasants
                paid by country belongs to Party A.

        (2)     Upon one year before the expiry of the contract, if Party B
                wants to use the land continuously, he can negotiate with Party
                A and apply with the Superior Country Land Department to
                complete the procedures on defer the use of the land. Regarding
                the charge on management fee etc, it will be determined by both
                parties according to the situations at that time.

        (3)     During the contract period, if there is economic problem arise
                due to the change in Country or Superior's policies, both
                parties can solve the problems through negotiation.

        (4)     If there shall be anything not provided in the agreement or any
                other special situations, both parties can negotiate a
                supplementary at any time.

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5.      This contract is made in 6 copies, it takes effect after signed by the
        representatives of both parties and certified by notarization bureau.

Party A : DongGuan Houjie Town Huangguan Industrial Estate Committee
Representative:

Party B : Jetcrown Industrial (DongGuan) Limited
Representative:

Additional Conditions: 1. Party A should provide an authorization letter signed
and chopped from "Dong Guan Houjie Town Real Property Co." to Party B. The
letter should clearly stated the details including the location, surface area
and the consideration of the captioned industrial land and the Company
authorized Party A the right to deal with the sale of the captioned land and to
collect the consideration for the deal. Such request makes this contract more
sound in the legal aspect

Party A : DongGuan Houjie Town Huangguan Industrial Estate Committee
Representative :        (Signed)

Party B : Jetcrown Industrial (DongGuan) Limited
Representative :        (Signed)

                                              January 3, 2000

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