Document:

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                                                                    EXHIBIT 10.1

                                    AGREEMENT

THIS AGREEMENT is made on 19 May, 2001 by and between:

Yan Man Developments Limited, a corporation duly organized and existing under
the laws of the British Virgin Islands with its registered address at Offshore
Incorporations Limited, P.O. Box 957, Offshore Incorporation Center, Road Twon,
Tortola, British Virgin Islands and its legal address at 11F Nan Yang Plaza, 57,
Hong Tu Rd., Kwantung, Kowloon, Hong Kong (hereinafter called "Party A").

Reng Bang Information Co., Ltd., a corporation duly organized and existing under
the laws of the Republic of China with its legal address at 4F-3, 6, Lane 99,
Poolding Rd., Hsinchu City, 300 (hereinafter called "Party B").

                                     Preface

WHEREAS:

(1)  Both Parties A and B are stockholders of Deson-Soho Technology Co., Ltd.,
     whose registered address is at 11F Nan Yang Plaza, 57, Hong Tu Rd.,
     Kowloon, Hong Kong (hereinafter called the "Company") and both parties have
     held the shares of the Company issued in accordance with Article 2.1 in
     this agreement since the registration date.

(2)  Both Parties agree to limit the territory of business in China, including
     Beijing, Special Administration Area of Hong Kong, Macao and other
     countries in southeastern Asia and engage in the business related to
     intelligence electronic systems. Party B is entitled to the rights of
     development of the electronic products as a general agent in Beijing,
     Special Administration Area of Hong Kong and Macao. As for the remaining
     districts, Party B shall be only entitled to have the rights of development
     of the electronic products as an agent.

(3)  Now, both parties agree to sign this agreement to ascertain individual
     obligations and responsibilities in the Company.

(4)  Both parties agree that Party A shall be in charge of the loan procedures
     for the Company if necessary; however, each party shall be obligated to
     incur the amount of loans in proportion to the rates of shares.

Articles of this agreement are as follows:

1.   Organization and Principal Activities

     1.1  The Company is engaged in the business activities that are specified
          by the memorandum of the Company as well as the businesses specified
          above.

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     1.2  Both parties agree that the Company shall not participate in any
          business or items that are not approved by the board of directors
          unless consensus agreement is reached and obtained from the
          directorate first.

     1.3  Prior to further negotiations on the issues of corporate registration
          and issued capital, an amount of HK$100,000.00 will be divided into
          100,000 shares of common stock, HK$1 par value (hereinafter called
          the "stocks"). All stocks are entitled to all rights and limitations
          as specified in the memorandum of the Company. During the valid term
          of this agreement, the registered capital and issued capital of the
          Company shall not be increased without a written agreement from both
          parties in advance.

     1.4  The amount of initial operating capital of the Company is
          HK$1,000,000.00. A sum of HK$100,000.00 is served as the registration
          and issuance capital of the Company and the remaining amount of
          HK$900,000.00 was borrowings from the shareholders in proportion to
          the rates of the shares they hold. Both parties agree to such
          transaction on the following dates:

          -    An initial amount of HK$500,000.00 was paid into the Company on
               June 30, 2001 in proportion to the rates of holding stocks.

          -    A remaining amount of HK$500,000.00 will be paid into the Company
               on December 31, 2001 in proportion to the rates of holding
               stocks.

2.   Stocks Held by Both Parties

     2.1  on the date of this agreement:

          (A)  Party A holds 60% shares of the Company, i.e., Party A is the
               legally authorized owner of the actual benefits of 60,000 shares
               and related share certificates have already been issued to Party
               A.

          (B)  Party B holds 40% shares of the Company, i.e., Party B is the
               legally authorized owner of the actual benefits of 40,000 shares
               and related share certificates have already been issued to Party
               B.

     2.2  Upon signing this agreement, both parties shall have to pay the stocks
          they hold in full in accordance with par value.

3.   Stock Transference Procedures

     3.1  (A)(I) Except specified as in Article 3.3, any party (called
          "transferor" in this article) that wishes to sell the shares he/she
          holds (called "sold stocks" in this article) shall give a written
          notice to the other party in this agreement (called "successor" in
          this article), who is entitled to purchase all of the rights of the
          stocks to be sold first. Upon receiving

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          the notice, the board of the directors of the Company shall require
          its assessor to decide reasonable prices of the stocks to be sold.
          However, profits or loss resulted from appraising corporate assets
          must be taken into consideration during assessment. Valuation of the
          assets is required to be conducted by the assessor of the Company or
          any independent professional assessor employed by the Company.
          Calculation should be based on the date when the notice is delivered
          as well as sustainable operation of the Company. The duration of asset
          appraisal is limited to thirty (30) days and starts from the date of
          assigning the assessor. After getting the assessment results from the
          assessor, a duplicate copy of evaluation shall be delivered to the
          transferor and the successor and the latter has ten days (commencing
          from the date of the assessment report) to decide whether to purchase
          those stocks to be sold. The number and ratio of the sold stocks to be
          acquired by the successor shall be determined by the ratio of shares
          held by the successor at that time. When the successor decides to
          purchase the stocks to be sold, he/she shall give a written notice to
          both the transferor and the Company within ten (10) days and purchase
          such stocks ten days after transference. The notice delivered by the
          successor is irrevocable, except specified otherwise as in Article
          3(A)(III). The transferor is also bound by the written notice since
          he/she shall hand in all related transference documents, stock
          certificates and transaction documents to the successor upon receiving
          the transference price. All relevant documents shall be signed and
          verified. Besides, a resignation letter of the director assigned by
          the transferor is required to be delivered to the successor. The board
          of directors shall approve such resignation as well as the new
          director designated by the successor.

    (II)  When certain successor(s) is unwilling to purchase the aforementioned
          stocks, the remaining successor(s) may purchase such shares in
          accordance with the ration of the stock they hold. After necessary
          changes and alterations have been made to Article (I) above, actual
          situation might be applied to this article.

    (III) In all circumstances, each party may give a written notice to the
          Company to revoke the transfer proposal within seven (7) days after
          the transferor receives the assessment report from the assessor.

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          (B)  When the transferor wishes to sold part of the shares instead of
               all stocks he/she holds, necessary amendments have to be made to
               Article 3.1(A). Upon completion of transfer procedures, the
               transferor has to force the director that he/she designates to
               resign in accordance with the ratio of the shares that he/she
               holds and transfers and a new director shall be designated by the
               successor.

     3.2  After the successor registers to become a legal owner of the stocks to
          be sold, the transferor shall not be bound by this agreement any more
          and shall not be entitled to all the rights specified therein;
          however, rights and responsibilities prior to completion of
          transference are excluded.

     3.3  Except the regulations specified in Article 3.4(B), the transferor may
          sell stocks to other people if the successor refuses to purchase all
          or part of the stocks to be sold by the transferor; however, prices
          shall not be lower than those presented to the successor. Transference
          procedures are required to be finished within twenty (20) days after
          the successor refuses to purchase such stocks. When the stocks are
          transferred to other people, regulations specified in Article 3.1 of
          this agreement have to be complied strictly.

     3.4  (A)  When the transferor is going to transfer all of his/her stocks to
               any other third party, an agreement between the transferor and
               any other third party has to be signed prior to transference. The
               transferee shall agree to comply and execute all obligations and
               responsibilities of the transferor as specified in this
               agreement. The transferee may refer to Party A and Party B in
               certain acceptable and applicable situations as specified in this
               agreement.

          (B)  When the transferor is going to transfer only part of his/her
               stocks to any other third party, an agreement between the
               transferor and any other third party has to be signed prior to
               transference. The transferee shall agree to accept all rights,
               obligations and responsibilities of the transferor as specified
               in this agreement.

     3.5  Article 3 is bound by Article 20.2.

     3.6  As specified in Article 3, when the successor does not give any
          written notice within the specified period after receiving the notice
          of transference, it shall be deemed that the successor has already
          made the decision of giving up purchasing the stocks to be sold by the
          transferor.

4.   Agreement from Other Parties Not Required for Stock Transference

     4.1  Whether this agreement or the memorandum of the Company specifies:

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          (A)  Parties A and B are entitled to transfer their shares to their
               subsidiaries or joint ventures; however, the transferor or the
               holding company of the transferor has to be the major stockholder
               of the transferee company. Each party is also entitled to
               transfer his/her stocks to other transferee stockholders. Article
               3.4 in this agreement is applicable here.

          (B)  The "major stockholder" in Article 4.1 refers to any company or
               individual that holds a ratio of shares not less than 50% and
               each share has the same rights, obligations and responsibilities.

          (C)  Any party shall not transfer his/her shares or the rights of
               his/her holding stocks without getting a written consent from the
               other party in advance. The other party may disagree or agree to
               such transfer under certain conditions. The transferor may
               request the involved transferee(s) to present his/their financial
               situations and proofs to be able to perform this agreement
               without affecting any interest or benefits of the other party,
               who has not decided to agree such transfer yet.

     4.2  Article 4 is bound by Article 20.2.

5.   Stock Transference Under Certain Circumstances

     5.1  When:

          (A)  Any party does not perform any responsibilities, warranty or
               promises specified in this agreement and fail to remedy the
               breach within 14 days of being specifically required in writing
               so to do by the Non-Defaulting party; or

          (B)  Any distress, execution, sequestration or other similar process
               is levies or enforced upon or sued out again property of the
               Defaulting Party, which is not discharged or suspended within 14
               days; or

          (C)  Any party fails to pay its debt generally as they become due; or

          (D)  Any party winds up, goes bankrupt, applies to or being applied to
               liquidation and fails to discharge or suspended such process
               within 14 days; or

          (E)  Any party suspends, terminates or threatens to wind up all or
               most of its business (not including reorganization and merger and
               information on reorganization and merger has been notified to the
               other party, who does not object), or signs a debt agreement with
               the creditors; or

          (F)  The business, property and assets (all or in part) are purchased,
               occupied or taken over by the successor; or

          (G)  The designated director is absent from the meetings and such

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               meetings are unable to be convened for 3 months consecutively due
               to insufficient quorum.

          Then, the other non-defaulting party shall be entitled to issue a
          written notice ("breach notice") to the "defaulting party" and ask the
          latter to sell or transfer all of his/her shares. The defaulting party
          here also includes a holding company.

     5.2  When the non-defaulting party asks the defaulting party to sell or
          transfer his/her stocks in accordance with Article 5.1, prices of the
          shares and transference procedures shall comply with Article
          3.1(A)(I).

     5.3  Articles 3.1 and 3.2 apply to Article 5. The defaulting party is
          deemed as the transferor and the other party is regarded as the
          successor.

     5.4  Article 5 is bound by Article 20.2.

6.   Purchase of All Stocks

     6.1  When any of the party (called "successor" in this article) purchases
          shares of other stockholders (called "transferor" in this article),
          the transferor shall dismiss the director he/she designates in the
          Company and the involved director shall not claim for any compensation
          from the Company or the successor. If the involved director claims for
          any loss resulted from his/her dismissed position or employment to the
          Company or the successor, the transferor shall be fully responsible
          for all expenses and loss incurred by the Company or the successor.

     6.2  Article 6 is bound by Article 20.2.

7.   Limitations to Mortgage on Stocks

     7.1  According to Articles 2 and 4 on the holding shares of the parties or
          Articles 3 and 5 on purchased shares or Article 9 on the increased
          shares due to increased capital stock of the Company, both parties are
          disallowed to pledge (pawn) or mortgage on the stocks that they hold
          or to serve as hypothecation for credit loans or borrowings from the
          banks unless a consent in writing from the other party is obtained in
          advance.

     7.2  As the Company may require, each party may pledge (pawn) or mortgage
          on the stocks they hold so as to help the Company make credit loans
          and borrowings from the banks. Article 7.1 is not applicable to
          Article 7.2.

8.   Stockholders' Voting Rights

     8.1  The voting right of each stockholder of the Company belongs to the
          shareholder registered in the list of stockholders of the Company

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          and no entrusting shall be admitted. Every share has one vote. Both
          parties shall be bound by the resolutions that are passed with a
          majority of votes; nevertheless, resolutions that are required to have
          a special majority of votes by the law are excluded.

     8.2  When a special resolution is required to be passed by the
          stockholders' meeting, a meeting notice shall be given to every
          shareholder before 21 days; however, if it is just a common
          resolution, then a notice 14 days before the meeting is convened will
          be enough. Purpose of the meeting shall be specified on the notice,
          which shall be mailed (if applicable) or delivered to every
          stockholder in person. Upon agreement reached by all stockholders, the
          date of the stockholders' meeting can be held earlier than the periods
          mentioned above.

     8.3  When a resolution is agreed and signed by all stockholders, such
          resolution shall be deemed passed and effective accordingly.
          Stockholders shall not be notified by any resolutions in writing.

     8.4  The quorum of the stockholders' meeting shall be represented by two
          members or consignees in person. One shall represent Party A and the
          other shall represent Party B. When there is not a quorum half an hour
          after the meeting time as specified on the notice because the
          representative of either party is not present, any person that attends
          the meeting shall constitute the quorum of the stockholders' meeting.

9.   Capital Stock

     9.1  Except the limitations as specified in Article 1.3, the Company may
          increase legal capital stock either by common stocks or shares of more
          than one type after acquiring a written consent from Party A and Party
          B. The Company may issue and distribute such stocks with different
          names and the price reached at the stockholders' meeting at
          appropriate time and under proper conditions; nevertheless, the price
          shall not be lower than par value of each share. Stocks that have been
          paid with the aforementioned price in full shall be deemed as shares
          with fully paid-up par value. Holders of such stocks shall not be
          liable to the Company or the creditors concerning matters related to
          the stocks; however, new stockholders shall have to sign an agreement
          to be bound by this agreement.

     9.2  While exercising the voting rights or any other rights, both parties
          shall be guaranteed and provided with stock options in accordance with
          the ratio of shares they hold respectively before any other additional
          stocks are distributed or issued. Based on the ratio of shares held by
          each party, both parties may on the date of issuance:

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          (A)  Maintain the ratio of issued capital with the Company.

          (B)  Maintain the ratio of profits and bonuses with the Company.

10.  Directors and Secretary

     10.1 Unless or upon a consent in writing from both parties for alteration,
          the number of directors shall be five (5) in the following format:

          Party A: 3 directors

          Party B: 2 directors

     10.2 Based on the regulations specified in each article of this agreement,
          the board of directors shall be entitled to manage and supervise
          operation and business of the Company, exercise corporate rights, take
          any legal actions that do not require decisions made by the
          stockholders of the Company in accordance with laws and corporate
          memorandum and assign other people to exercise the rights of the
          directorate.

     10.3 The quorum of the directors' meeting is two, who will be the
          representatives from both parties. Directors may attend the meeting as
          an individual or an alternate director. Each director shall stand for
          each party with one vote. When there is not a quorum half an hour
          after the meeting time as specified because the representative of
          either party is not present, any person that attends the meeting shall
          constitute the quorum of the directors' meeting.

     10.4 If either party defaults on any obligations specified in this
          agreement and results in the situation as described in Article 5.1, or
          breaches Article 15 or Article 18.5, the director designated by the
          defaulting party shall not exercise the voting right until such breach
          has been remedied. A resolution passed by any two parties including
          the non-defaulting party shall be deemed passed by all directors.

     10.5 The time and place of holding a directors' meeting shall be determined
          by both parties based on the circumstances then.

     10.6 Every director can assign an alternate director in accordance with the
          corporate memorandum and such alternate director shall be entitled to
          all rights, benefits and responsibilities of the original directors,
          who may terminate the assigned alternate directors at any time.

     10.7 The following people shall be the sitting directors of the Company.
          Article 10.1 in this agreement has to be complied concerning assigning
          directors in the future.

          Party A: Mr. Hsieh Wen-Sheng, Mr. Chiang Kuo-Hui, Mr. Huang Chih-Ming

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      Party B: Mr. Chen Li-Lung, Mr. Tseng Wen-Hao

      10.8  The first chairman of the Company shall be Mr. Hsieh Wen-Sheng and
            the vice-chairman shall be Mr. Chen Li-Lung. They both shall serve a
            term until decided by the board of directors otherwise. The chairman
            and the vice-chairman shall not have the privilege of a second vote
            or a final vote in the directors' and stockholders' meetings.

      10.9  The director designated by either party may be dismissed and
            recommended with a new candidate. Vacancy due to other reasons may
            be supplemented by other people; however, the number of the
            directorate specified in Article 10.1 has to be maintained.

      10.10 Directors shall not without any reasonable cause refuse to pass
            motions related to the expenses required for normal operation of the
            Company on the directors' meeting.

      10.11 Ms. Huang Chia-Yu shall be the secretary of the Company until
            decided by the board of directors otherwise.

11.   Refusal of Transfer Register

      11.1  Upon discovery of stock transfer not in accordance with the articles
            in this agreement, the designated directors of both parties shall
            refuse to register such transfer.

12.   Spontaneous Agreement

      12.1  Both parties agree that when either party still holds shares of the
            Company, they shall vote against the motions as follows:

            (A)   Increase in the legal shares or issuance of capital stock
                  prior to obtaining consents in writing from other parties; and

            (B)   Alternations of the scope, category and nature of business of
                  the Company, or not in compliance with the regulations
                  specified in Articles 1.1 and 1.2 of this agreement.

13.   Administration, Auditing, Accounts, Dividends and Annual Budget

      13.1  Mr. Huang Chih-Ming holds the office of the full-time director and
            general manager of the Company, whose powers and responsibilities
            shall be established by the board of directors if necessary. He
            shall serve the term until decided by the directorate otherwise.

      13.2  The first auditor of the Company shall be assumed by An Yung Chi
            Certified Public Accountants and the board of directors shall be
            entitled to designate other auditors.

      13.3  The Company shall open an account at the bank agreed by both parties
            and the dual signature system shall be adopted; i.e.,

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            signatures have to be made by the representatives duly authorized by
            both parties and all bills and notes and transactions of the bank
            account shall not be validated until joint signatures by both
            parties are acquired. The Company shall not issue a single check to
            the same beneficiary with an amount or an accumulated sum over a
            hundred thousand dollars within 3 months prior to obtaining related
            approval.

      13.4  Time and amount of distributing dividends shall be determined by the
            board of directors based on operation of the Company in the fiscal
            year.

      13.5  General manager shall make an annual budget plan before the next
            fiscal year starts. After being approved by the board of directors,
            such budget plan shall be formalized. General manager shall deliver
            arranged accounts of the month to both parties within 30 days after
            the end of each month.

14.   Important Decisions

      14.1  Prior to a consensus agreement reached by both parties, each party
            shall guarantee that the designated director will not allow or even
            cause the following things to happen:

            (A)   Credit loans from the banks or various borrowings;

            (B)   Mortgage all or part of the business or assets of the Company;

            (C)   Make loans from other companies or provide credit loans,
                  surety or guarantee to other companies, or provide surety or
                  guarantee of the responsibilities or liabilities for others;

            (D)   Change the scope of business listed in Articles 1.1 and 1.2;

            (E)   Sell, transfer, rent or in any other methods to dispose of
                  (one time or several times) the business, assets, properties
                  or benefits of the Company or sign such contracts related;

            (F)   Purchase or acquire the stocks issued by other companies or
                  bonds, any other responsibilities or mortgage of other
                  companies or individuals in any other ways;

            (G)   Purchase real estate, land or property rights of the
                  companies;

            (H)   Sponsor any plans with money;

            (I)   Construct, improve or proceed any important improvements,
                  maintenance, alteration or change of all or part of the
                  property of the Company.

            (J)   Fixed or floating mortgage, lien or other limitations resulted
                  from assets of the Company; however, surety made for the
                  normal operation of the Company is excluded.

            (K)   Change the rights of the shares of different categories of the
                  Company.

            (L)   Consolidate, separate or change stocks of the Company or

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                  change the rights of such stocks in any other methods.

            (M)   Introduce other people to become stockholders of the Company
                  before getting consent from the directorate.

            (N)   Purchase or sell the rights of the subsidiaries of the
                  Company.

            (O)   Do partnership business or negotiate an agreement of
                  distributing dividends with other people.

            (P)   Allow or tacitly agree to certain actions that lead to
                  liquidation of the Company (volunteer or enforced);
                  nevertheless, liquidation carried out in accordance with the
                  articles in this agreement is excluded.

            (Q)   Issue various bonds, stock warrants, convertible bonds or any
                  financial arrangements that might affect the interest or
                  benefits of the other party;

            (R)   Modify the memorandum of the Company, and;

            (S)   Incur the Company to pay for the expenses besides budget.

            (T)   Any resolutions that may affect the rights of both parties.

            (U)   The budget of the Company has to be decided by both parties in
                  accordance with the methods of expenses provided and listed as
                  an important decision.

15.   Cooperation and Confidentiality

      15.1  Both parties shall cooperate and exchange information to help
            development of the Company as well as provide all necessary
            assistance.

      15.2  Both parties shall guarantee that their designated directors will
            strictly keep confidential of the business and operation information
            obtained from the Company directly or indirectly. Both parties shall
            endeavor to make their employees, subordinates, related personnel,
            directors and important members keep confidential of all related
            information and secrets.

16.   Decisions Made during Deadlock

      16.1  When a common consensus can't be reached after discussion of the
            board of directors or between the parties concerning the various
            items listed in Article 14 within the following 30 days and the
            reason of no common consensus is due to the refusal of giving a
            reasonable consent required by the agenda by either of the parties
            or director, such circumstance shall be deemed as a "deadlock."

      16.2  When impasse occurs and lasts for 15 days, the pro side (the
            "proposition party") may present in writing to the con side (the
            "opposition party") to purchase all shares (not in part) and

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            related stockholders' borrowings of the opposition party unless both
            parties agree to extend deadlock in written form. Related prices
            shall be based on those calculated by the assessor of the Company in
            accordance with Article 3.1 (A)(I). The proposition party may
            suggest to sell all of his/her own shares (not in part) and related
            stockholders' borrowings to the opposition party and the price shall
            be regulated in accordance with Article 3.1(A)(I).

      16.3  When the proposition party requests for a sale of his/her own shares
            and the opposition party does not indicate to accept such transfer
            within 15 days after receiving the notice issued by the proposition
            party in accordance with Article 16.2, or does not make any
            decisions in writing within the specified period, the proposition
            party may sell his/her own shares to others in compliance the
            relevant regulations specified in Article 3.

      16.4  When the proposition party is unable to purchase the shares and
            related stockholders' borrowings offered by the opposition party or
            unable to find other investors within 30 days after objecting to
            purchase such shares, the proposition party may present a
            liquidation application.

17.   Absolute Loyalty

      17.1  All revenues of the Company shall be deposited to the bank account
            of the Company.

18.   Supply of Expenditures

      18.1  Except for the regulation as specified in Article 1.4 or mutual
            agreement of both parties, neither party shall be liable to pay for
            any expenditures, stockholders' borrowings and the operating
            expenses as specified in Preface (2). However, when related
            expenditures are required in the future, each party shall provide
            funds for such expenses or arrangements in accordance with the ratio
            of shares he/she holds.

      18.2  Upon the resolution of involved expenses is passed by the board of
            directors, both parties shall make a loan for the Company within 14
            days.

      18.3  Meanwhile, the board of directors will decide the term and the
            interest rate of payments made to stockholders' borrowings. Both
            parties agree that any payment request is invalid unless the Company
            winds up or liquidates or such request has been approved by the
            board of directors.

      18.4  When collateral or surety is required for the aforementioned
            borrowings, each party shall provide individual surety in

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            accordance with the ratio of shares he/she holds. When both parties
            are required to provide common and individual sureties, each party
            shall only be obligated to provide security in proportion to the
            shares he/she owns and the other party shall be liable to pay for
            all losses, legal fees and claims resulted from litigation.

      18.5  When any party cannot provide or assist to supply the funds required
            by the Company in accordance with Articles 18.2, 18.3 and 18.4, it
            shall be deemed as breach as specified in Article 5.1(A) and
            Articles 18.6 and 5.2 shall be applicable therefore.

      18.6  The non-defaulting party or any member can provide or assist to
            supply required funds for the Company in lieu of the defaulting
            party and such paid accounts shall be the defaulting party's debts.
            The rights/equity of the defaulting party in the Company shall be
            served as a collateral to the party that made the payment for
            him/her. The debts mentioned above can be charged with a 3% interest
            besides the preferential interest rate until all debts have been
            paid up. The non-defaulting party is also entitled to ask the
            defaulting party to make the payment immediately.

      18.7  (A)   The non-defaulting party is entitled to request the defaulting
                  party to sell all of his/her own equity in the Company and the
                  price shall be calculated in accordance with Article
                  3.1(A)(I).

            (B)   "Equity of the defaulting party in the Company" in Article
                  18.6 refers to the shares held by the defaulting party in the
                  Company and the stockholders' borrowings by the Company from
                  the defaulting party.

19.   Continuity of This Agreement

      19.1  Both parties and their successors are bound by all of the articles
            specified in this agreement.

      19.2  This agreement shall be executed upon the date of signature and
            shall be continuously effective until both parties come to an
            agreement of termination or when the Company liquidates.

20.   Agreement Compliance Guarantee

      20.1  Both parties guarantee to perform or assist to execute everything
            within limits of authority, including passing related resolutions in
            the directors' or stockholders' meetings so as to ensure the
            articles in this agreement shall be complied and performed.

      20.2  Upon transferring stocks, the stockholders' borrowings by the
            Company shall also be transferred to the transferee. This article
            applies to Article 4.1 as well.

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21.   Nature of The Agreement

      21.1  This agreement shall not be served as a means of speculation
            activities for both parties. Either party is entitled to exercise
            any methods to restrict the other party.

22.   No Assignability

      22.1  Except as specified in Article 4.1 of this agreement, this agreement
            belongs to both parties. Therefore, either party is not entitled to
            transfer the rights of this agreement on his/her own.

23.   Expenses

      23.1  Each party shall be responsible for all expenses of preparing this
            agreement on his/her own.

24.   Notices

      All of the required or approved notices shall be in writing and (i)
      delivered in person or (ii) sent in registered mails to the address of the
      appropriate party or (iii) sent by facsimile, telegram or telex to the
      address of the appropriate party. Except specified otherwise, all notices
      or any other communication delivered in the following methods shall be
      deemed effective delivery:

      (i)   delivered in person and received on the same day;

      (ii)  sent by registered mail and received two days after;

      (iii) delivered by telegram, telex or facsimile and deemed received after
            transmitting

      Mailing information of both parties is as follows:

      Party A: Yan Man Developments Limited
      Address: 11F Nan Yang Plaza, 57, Hong Tu Rd., Kwantung, Kowloon, Hong Kong
      Fax No.: (852) 25129071
      Attention: Mr. Huang Chih-Ming

      Party B: Reng Bang Information Co., Ltd.
      Address: 4F-3, 6, Lane 99, Pu Ding Rd., Hsinchu City, 300, Taipei, Taiwan
      Fax No.: (03) 575 3377
      Attention: Mr. Chen Li-Lung

25.   Entire Agreement

      25.1  This agreement constitutes the entire agreement between the parties
            hereto with respect to the subject matter hereof and

<PAGE>

            supersedes all prior letters, reasoning, agreements or guarantee
            with regard to the same either in written or oral forms.

26.   Alteration

      26.1  This agreement cannot be modified, added or altered unless signed by
            both parties or their duly authorized representatives.

27.   Superiority of This Agreement

      27.1  If there is any conflict or inconsistency between the agreement and
            the memorandum of the Company, the agreement shall prevail. However,
            both parties shall amend the memorandum of the Company to be
            consistent with the provisions of this agreement.

28.   Governing Law

      28.1  This agreement shall be governed by the laws of the Special
            Administration Area of Hong Kong, PRC.

29.   Interpretation of This Agreement

      29.1  While explaining this agreement, male terms can also be interpreted
            as female or neutral terms and singular forms can be regarded as
            plural forms and vice versa.

30.   Headings

      30.1  Headings are merely served as a reference for convenience sake and
            shall not affect interpretation of this agreement.<PAGE>
                                                                    EXHIBIT 10.2

                              COOPERATION CONTRACT

      THIS COOPERATION CONTRACT has been entered by Taiwan Secom Co., Ltd.
(hereinafter called Party A), Yonin Technology Co., Ltd. (hereinafter called
Party B) and Reng Bang Information Co., Ltd. (hereinafter called Party C).

      NOW, THEREFORE, in consideration of the cooperation obligations hereunder,
the three parties hereto agree as follows:

Article 1   The items that are required to be quoted to the construction company
            (or the proprietor) in the beginning by the three parties consist
            of:

            (1)   Security system (Secom)

            (2)   Access automatic system (Secom, except Yonin still in charge
                  of random locks)

            (3)   Monitoring system (Secom)

            (4)   BA (Yonin)

            (5)   Network (Reng Bang)

            (6)   Other related products

Article 2   The security, door access and monitoring systems specified in
            Article 1 shall be replaced with other products due to changes on
            the market or requirements made by the customers during the initial
            stage of quotations and an agreement has to be reached among the
            three parties.

Article 3   Any of the three parties shall provide proper educational training
            if required by any of the other two parties. All accrued expenses
            resulted during the period of training should be afforded by the
            party that is responsible to implement such training.

Article 4   Methods of listing doubtful accounts (or loss):

            (1)   The total amount of a concluded transaction among the three
                  parties and the construction company (or the proprietor) minus
                  the accounts received leaves doubtful accounts (or loss).

            (2)   The amount of doubtful accounts to be listed is resulted from
                  the accounts receivable multiplying the rates of concluded
                  amounts of the three parties (i.e. the average rate of loss
                  that each party should be responsible)

Article 5   Payment

            (1)   Payment of the construction company shall be determined on a
                  case basis.

            (2)   Payment of the three parties shall be decided in accordance
                  with the method of payment made by the construction

<PAGE>

                  company and another agreement shall be made therefrom.

Article 6   Maintenance And Service: Maintenance and service of the material
            shall be decided on a case basis and the three parties shall come to
            an agreement as to the method of performing such maintenance or
            service. In addition, the maintenance and service contract shall be
            incorporated into the subcontract as an appendix as a reference of
            adherence.

Article 7   Structure of communications: Each of the three parties shall provide
            its own system and structure of communications (including names and
            phone numbers of sales, engineering and technical personnel as well
            as the people in charge of the branches in central and southern
            Taiwan). In case of any changes of such personnel, the other two
            parties shall be notified immediately so as to facilitate smooth
            operation of projects. If such notice is not given and any of the
            other two parties suffers loss, the defaulting party shall be liable
            to any of the claims resulted thereof.

Article 8   During the valid term of this contract, Party A agrees not to sign
            any of the contract or agreement that is similar to this contract or
            establish any relationship of strategic alliance with any third
            party and Party B and Party C agree not to do the same thing
            aforementioned with any other securities companies. If any party
            violates such regulation, an amount of NT$2 million shall be
            immediately paid to the faultless party (parties) as a penalty fine
            and the violating party should also compensate for any loss resulted
            from such violation. The same rule applies to terminating the
            contract before it expires.

Article 9   Party B and Party C shall not sell, rent or lease the products of
            Party A in any forms in Taiwan without a prior consent from Party A.
            However, any of the three parties shall sell the products in its own
            brand in the areas out of Taiwan.

Article 10  The term of this cooperation contract is valid for three (3) years
            and shall be discussed and reviewed once every year. All quotations
            shall be kept strictly confidential by all three parties. Any of the
            parties or its (their) affiliate companies with an intent of making
            the other party (parties) suffer from loss by disclosing such
            information to any third party on purpose shall be liable to pay the
            penalty fine specified in the previous article and compensate for
            any loss resulted from such disclosure. The same rule applies to
            terminating the contract before it expires.

Article 11  Any confidential information or intelligent property rights related
            to this contract shall belong to the three parties jointly.

Article 12  Party A may terminate this contract any time and claims for

<PAGE>

            loss to Party B or Party C when any of the latter parties
            reorganizes, winds up, merges, liquidates or terminates operation
            and is default in performance of the obligations specified in this
            contract.

Article 13  As for any other items unspecified in this contract, the three
            parties may make another agreement upon consensus.

Article 14  Any dispute which may arise in connection with this contract shall
            be settled by arbitration of the local court in Taipei, Taiwan, the
            Republic of China.

Article 15  This original contract is in six (6) copies and each party shall
            retain two (2) copies.

Contractors:

Party A:

            Name: Taiwan Secom Co., Ltd.
            Person in Charge: Hsu Ming-De

Party B:

            Name: Yu Ning Technology Co., Ltd.
            Person in Charge: Lin Dong-Zhu

Party C:

            Name: Reng Bang Information Co., Ltd.
            Person in Charge: Peng Li-Fang

Date: July 1, 2000

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