APPLIED OPTOELECTRONICS, INC. 2006 INCENTIVE SHARE PLAN STOCK OPTION AGREEMENT

Exhibit 10.5.2

APPLIED OPTOELECTRONICS, INC. 2006 INCENTIVE SHARE PLAN

STOCK OPTION AGREEMENT

Optionee:

Employee ID / Participant Code:

Grant Number:

Address:

Total Shares Subject to Option:

Exercise Price Per Share:

Date of Grant:

Vesting Commencement Date:

Post-Termination Exercise Period:

Expiration Date:

1.                                      Grant of Option.  Applied Optoelectronics, Inc., a Texas corporation (the “Company”), hereby grants to the Optionee named above an option (the “Option”) to purchase the total number of shares of Common Stock set forth above (the “Shares”) at the exercise price per Share set forth above (the “Exercise Price”), in accordance with this Stock Option Agreement (“Option Agreement”) and subject to the terms and conditions of the Applied Optoelectronics, Inc. 2006 Incentive Share Plan, as amended from time to time (the “Plan”), which are incorporated herein by reference.  If designated as an Incentive Stock Option above, the Option is intended to qualify as an “incentive stock option” within the meaning of Section 422 of the Code.  Unless otherwise defined herein, capitalized terms used herein shall have the same meanings ascribed to them in the Plan.

2.                                      Vesting; Time of Exercise.  Subject to the terms and conditions of the Plan and this Option Agreement, the Option shall vest and become exercisable in the following cumulative installments, as follows:

(a)                                 The Option shall vest and become exercisable with respect to                          percent (    %) of the Shares as of the                                                anniversary of the vesting commencement date set forth above (the “Vesting Commencement Date”);

(b)                                 The Option shall vest and become exercisable with respect to                      (      ) of the remaining Shares as of the             day of the                    month following the                 anniversary of the Vesting Commencement Date and each succeeding                          calendar month(s), until the Option is vested and exercisable with respect to           % of the Shares.

If an installment covers a fractional Share, such installment will be rounded to the next highest Share, except the final installment, which will be for the balance of the total Shares; provided, that, absent the occurrence of a Recapitalization or Corporate Transaction as described in Article 12 of the Plan, the Optionee shall in no event be entitled under the Option to purchase a number of shares of the Common Stock greater than the “Total Shares Subject to Option” indicated above.  Notwithstanding anything to the contrary herein, the Option shall expire on the Expiration Date set forth above and must be exercised, if at all, on or before the Expiration Date.  If the Optionee’s service with the Company or any Subsidiary is terminated, the Option shall be exercisable only to the extent that the Optionee could have exercised it on the date of his or her termination of Continuous Service.  Notwithstanding anything to the contrary herein, the Shares shall become fully exercisable upon the occurrence during the term hereof of a Change of Control or the death, Disability or Retirement of the Optionee, and the Optionee may forfeit his or her right to exercise the Option if the Optionee’s service with the Company or any Subsidiary is terminated for Cause.

3.                                      Exercise of Option.

(a)                                 Right to Exercise.  The Option shall be exercisable in accordance with the vesting provisions contained in Section 2 of this Option Agreement and with the other applicable provisions of the Plan and this Option Agreement.  The Option shall be subject to the provisions of Section 12 of the Plan relating to the exercisability or termination of the Option in the event of a Recapitalization or Corporate Transaction.

(b)                                 Method of Exercise.  The Option shall be exercisable only by delivery to the Company of an executed Stock Option Exercise Notice (the “Exercise Notice”) in the form attached hereto as Exhibit A, or in such other form approved by the Committee, which shall state the Optionee’s election to exercise the Option, the whole number of Shares in respect of which the Option is being exercised, and such other provisions as may be required by the Committee or necessary to comply with securities and other applicable laws. The Exercise Notice shall be signed by the Optionee and shall be delivered to the Company by such method as may be permitted by the Committee, accompanied (in any case) by payment of, or provision for the payment of, the Exercise Price for each Share covered by the Exercise Notice, as described in Section 4 of this Option Agreement.  The Option shall be deemed to be exercised upon receipt by the Company of such written Exercise Notice and the Exercise Price to the extent provided in such Exercise Notice.

(c)                                  Issuance of Shares.  If the Exercise Notice and payment are in form and substance satisfactory to the Company (or its counsel), and the Optionee or any other person permitted to exercise the Option has complied with Section 5 of this Option Agreement, the Company shall issue or cause the issuance of, in the name of the Optionee or Optionee’s legal representative, the Shares purchased by such exercise of the Option.

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4.                                      Method of Payment. The Optionee’s delivery of the signed Exercise Notice to exercise the Option (in whole or in part) shall be accompanied by full payment of the Exercise Price for the Shares being purchased.  Payment for the Shares may be made in cash (by check) or at the election of the Optionee and where permitted by law in one or more of the following methods: (i) if a public market for the Common Stock exists, through a “same day sale” arrangement between the Optionee and a broker-dealer that is a member of the National Association of Securities Dealers, Inc. (an “NASD Dealer”) whereby the Optionee elects to exercise the Stock Option and to sell a portion of the shares of Common Stock so purchased to pay for the exercise price and whereby the NASD Dealer commits upon receipt of such shares of Common Stock to forward the exercise price directly to the Company; (ii) if a public market for the Common Stock exists, through a “margin” commitment from the Optionee and an NASD Dealer whereby the Optionee elects to exercise the Stock Option and to pledge the shares of Common Stock so purchased to the NASD Dealer in a margin account as security for a loan from the NASD Dealer in the amount of the exercise price, and whereby the NASD Dealer commits upon receipt of such shares of Common Stock to forward the exercise price directly to the Company; (iii) by surrender for cancellation of shares of Common Stock owned by the Optionee at the Fair Market Value per share at the time of exercise (provided that such surrender does not result in an accounting charge for the Company); (iv) where approved by the Committee at the time of exercise, by delivery of the Optionee’s promissory note with such recourse, interest, security, redemption and other provisions as the Committee may require, provided that the par value of each of the shares of Common Stock to be purchased is paid for in cash; or (v) in any other form of valid consideration that is acceptable to the Committee in its sole discretion or (vi) by any combination of the foregoing.  Notwithstanding the foregoing, the payment options provided in (i), (ii) or (iv) above shall not be available to any Optionee who is a member of the Board or an executive officer of the Company or a Subsidiary if such payment option would be treated as a personal loan prohibited under Section 13(k) of the Exchange Act.

5.                                      Tax Withholding Obligations.  No Shares shall be delivered to the Optionee or any other person permitted to exercise the Option pursuant to the exercise of the Option until the Optionee or such other person has made arrangements acceptable to the Committee for the satisfaction of applicable income tax, employment tax, and social security tax withholding obligations, including obligations incident to the receipt of Shares.  Upon exercise of the Option, the Company or the Optionee’s employer may offset or withhold (from any amount owed by the Company or the Optionee’s employer to the Optionee) or collect from the Optionee or such other person an amount sufficient to satisfy such tax obligations and/or the employer’s withholding obligations.

6.                                      Termination or Change of Service.

(a)                                 Post-Termination Exercise.  Subject to the provisions of Sections 7 and 8 of this Option Agreement, if the Optionee’s service with the Company or any Subsidiary terminates, other than as described in Section 6(b) of this Option Agreement, the Optionee may, to the extent otherwise so entitled at the date of Optionee’s termination of service (the “Termination Date”), exercise the Option during the Post-Termination Exercise Period set forth on the first page of this Option Agreement.  Upon termination of the Optionee’s service with the Company or any Subsidiary as described in Section 6(b) of this Option Agreement, the Optionee’s right to exercise the Option shall, except as otherwise determined by the Committee, terminate

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concurrently with the termination of the Optionee’s service with the Company or Subsidiary.  In no event may the Option be exercised later than the Expiration Date set forth on the first page of this Option Agreement.  In the event of the Optionee’s change in status from Employee, non-employee director or Consultant to any other status of Employee, non-employee director or Consultant, the Option shall remain in effect and, except to the extent otherwise determined by the Committee, continue to vest; provided, however, that with respect to any Incentive Stock Option that shall remain in effect after a change in status from Employee to non-employee director or Consultant, such Incentive Stock Option shall cease to be treated as an Incentive Stock Option and shall be treated as a Non-Qualified Stock Option on the day that is three (3) months and one (1) day following such change in status.  Except as provided in Sections 7 and 8 of this Option Agreement, to the extent that the Optionee is not entitled to exercise the Option on the Termination Date, or if the Optionee does not exercise the Option within the Post-Termination Exercise Period, the Option shall terminate.

(b)                                 No Post-Termination Exercise.  Unless the Committee otherwise determines, if the Optionee’s service with the Company or any Subsidiary is terminated either (i) by the Company or a Subsidiary for Cause, or (ii) if Optionee’s employment is subject to the terms of a then-effective written employment agreement between the Optionee and the Company or an affiliate, by the Optionee without compliance with, or without having any right to do so under, the terms of such employment agreement, then the Optionee’s right to exercise the Option shall immediately terminate.  For purposes of this Option Agreement, the term “Cause” for termination by the Company or a Subsidiary of the Optionee’s service with the Company or any Subsidiary shall have the meaning set forth in a then-effective written employment agreement between the Optionee and the Company or such Subsidiary or, in the absence of such a definition in a then-effective written employment agreement (in the determination of the Committee), shall mean Cause as otherwise provided in the Plan.   The Committee shall have discretion for the purposes of this Option Agreement to determine whether any termination of service by the Optionee is in compliance with, or is in accordance with any right to terminate, under the terms of a then-effective written employment agreement.

7.                                      Disability or Retirement of Optionee.  If the Optionee’s service with the Company or any Subsidiary terminates as a result of his or her Disability or Retirement, the Optionee may exercise the Option, within 36 months from the Termination Date (and in no event later than the Expiration Date), provided, however, that with respect to any Incentive Stock Option that shall remain in effect after an Optionee’s Disability or Retirement, such Incentive Stock Option shall cease to be treated as an Incentive Stock Option and shall be treated as a Non-Qualified Stock Option on the day that is one (1) year and one (1) day following the Optionee’s Disability or three (3) months and one (1) day following the Optionee’s Retirement.  If the Option is not exercised to the extent so entitled within the time specified in this Section 7, the Option shall terminate.

8.                                      Death of Optionee.  In the event of the termination of the Optionee’s service with the Company or any Affiliate as a result of his or her death, the Optionee’s estate, or a person who acquired the right to exercise the Option by bequest or inheritance, may exercise the Option, within 36 months from the date of death (but in no event later than the Expiration Date), provided, however, that with respect to any Incentive Stock Option that shall remain in effect after an Optionee’s death, such Incentive Stock Option shall cease to be treated as an Incentive

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Stock Option and shall be treated as a Non-Qualified Stock Option on the day that is one (1) year and one (1) day following the Optionee’s death.  If the Option is not exercised to the extent so entitled within the time specified in this Section 8, the Option shall terminate.

9.                                      Notice of Disqualifying Disposition.  If the Option is an Incentive Stock Option, and if the Optionee sells or otherwise disposes of any of the Shares acquired pursuant to exercise of the Incentive Stock Option on or before the later of (i) the date that is two years after the Date of Grant, or (ii) the date that is one year after exercise of the Incentive Stock Option with respect to the Shares to be sold or disposed of, then the Optionee shall immediately notify the Company in writing of such sale or other disposition.  The Optionee acknowledges and agrees that he or she may be subject to income tax withholding by the Company on the compensation income recognized by him or her from any such early sale or other disposition by payment in cash or out of the current wages or other earnings payable to the Optionee.

10.                               Transferability of Option.  Neither the Option nor any of the Optionee’s rights under this Option Agreement may be transferred or assigned in any manner other than by will or by the law of descent and distribution or as may otherwise be permitted by the Committee or by the terms of the Plan.  The Option and those rights may be exercised during the lifetime of the Optionee only by the Optionee.

11.                               Tax Consequences.  Set forth below is a brief summary, as of the Date of Grant, of some of the federal tax consequences of exercise of the Option and disposition of the Shares.  THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE.  THE OPTIONEE SHOULD CONSULT A TAX ADVISOR BEFORE EXERCISING THE OPTION OR DISPOSING OF THE SHARES.

(a)                                 Exercise of Incentive Stock Option.  If the Option qualifies as an Incentive Stock Option, there will be no regular federal income tax liability upon the exercise of the Option, although the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price will be treated as an adjustment to alternative minimum taxable income for federal income tax purposes and may subject the Optionee to an alternative minimum tax liability in the year of exercise.

(b)                                 Exercise of Non-Qualified Stock Option.  If the Option does not qualify as an Incentive Stock Option, there may be a regular federal income tax liability upon the exercise of the Option.  The Optionee will be treated as having received compensation income (taxable at ordinary income tax rates) equal to the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price.  If the Optionee is an Employee or former Employee, the Company will be required to withhold from the Optionee’s compensation or collect from the Optionee and pay to the applicable taxing authorities an amount equal to a percentage of this compensation income at the time of exercise.

(c)                                  Disposition of Shares.  In the case of a Non-Qualified Stock Option, if the Shares are held for at least one year before disposition, any gain on disposition of the Shares will be treated as long-term capital gain for federal income tax purposes.  In the case of an Incentive Stock Option, if Shares are held for at least one year after the date of exercise and at least two years after the Date of Grant, any gain on disposition on the Shares will be treated as long-term

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capital gain for federal income tax purposes.  If the Shares acquired pursuant to an Incentive Stock Option are disposed of within such one-year or two-year periods (a “disqualifying disposition”), gain on such disqualifying disposition will be treated as compensation income (taxable at ordinary income rates) to the extent of the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price (the “Spread”), or, if less, the difference between the amount realized on the sale of such Shares and the Exercise Price.  Any gain in excess of the Spread shall be treated as capital gain.

12.                               Term of Option.  The Option may be exercised no later than the Expiration Date or such earlier date as otherwise provided in this Option Agreement.

13.                               Entire Agreement; Governing Law.  The Plan and this Option Agreement (with the Exercise Notice, if the Option is exercised) constitute the entire agreement of the Company and the Optionee (collectively the “Parties”) with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Parties with respect to the subject matter hereof, and may not be modified adversely to the Optionee’s interest except by means of a writing signed by the Parties.  Nothing in the Plan and this Option Agreement (except as expressly provided therein or herein) is intended to confer any rights or remedies on any person other than the Parties.  The Plan and this Option Agreement are to be construed in accordance with and governed by the internal laws of the State of Texas without giving effect to any choice-of-law rule that would cause the application of the laws of any jurisdiction other than the internal laws of the State of Texas, to the rights and duties of the Parties.  Should any provision of the Plan or this Option Agreement be determined by a court of law to be illegal or unenforceable, such provision shall be enforced to the fullest extent allowed by law and the other provisions shall nevertheless remain effective and shall remain enforceable.

14.                               Interpretive Matters.  Whenever required by the context, pronouns and any variation thereof shall be deemed to refer to the masculine, feminine, or neuter, and the singular shall include the plural, and vice versa.  The term “include” or “including” does not denote or imply any limitation.  The captions and headings used in this Option Agreement are inserted for convenience and shall not be deemed a part of the Option or this Option Agreement for construction or interpretation.

15.                               Dispute Resolution.  The provisions of this Section 15 shall be the exclusive means of resolving disputes of the Parties (including any other persons claiming any rights or having any obligations through the Company or the Optionee) arising out of or relating to the Plan and this Option Agreement (including the Exercise Notice, if the Option is exercised).  The Parties shall attempt in good faith to resolve any disputes arising out of or relating to the Plan and this Option Agreement (including the Exercise Notice, if the Option is exercised) by negotiation between individuals who have authority to settle the controversy.  Negotiations shall be commenced by either Party by a written statement of the Party’s position and the name and title of the individual who will represent the Party.  Within thirty (30) days of the written notification, the Parties shall meet at a mutually acceptable time and place, and thereafter as often as they reasonably deem necessary, to resolve the dispute.  If the dispute has not been resolved by negotiation, the Parties agree that any suit, action, or proceeding arising out of or relating to the Plan or this Option Agreement shall be brought in the United States District Court for the Southern District of Texas (or should such court lack jurisdiction to hear such action, suit

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or proceeding, in a Texas state court in Harris County, Texas) and that the Parties shall submit to the jurisdiction of such court.  The Parties irrevocably waive, to the fullest extent permitted by law, any objection a Party may have to the laying of venue for any such suit, action or proceeding brought in such court.  THE PARTIES ALSO EXPRESSLY WAIVE ANY RIGHT THEY HAVE OR MAY HAVE TO A JURY TRIAL OF ANY SUCH SUIT, ACTION OR PROCEEDING.  If any one or more provisions of this Section 15 shall for any reason be held invalid or unenforceable, it is the specific intent of the Parties that such provisions shall be modified to the minimum extent necessary to make it or its application valid and enforceable.

16.                               Notice.  Any notice or other communication required or permitted hereunder shall be given in writing and shall be deemed given, effective, and received upon prepaid delivery in person or by courier or upon the earliest of delivery or the third business day after deposit in the United States mail if sent by certified mail, with postage and fees prepaid, addressed to the other Party at its address as shown beneath its signature in this Option Agreement, or to such other address as such Party may designate in writing from time to time by notice to the other Party in accordance with this Section 16.

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THE OPTIONEE ACKNOWLEDGES AND AGREES THAT, EXCEPT AS EXPRESSLY PROVIDED OTHERWISE HEREIN, THE SHARES SUBJECT TO THE OPTION SHALL VEST, IF AT ALL, ONLY DURING THE PERIOD OF THE OPTIONEE’S CONTINUOUS SERVICE (NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THE OPTION OR ACQUIRING SHARES HEREUNDER).  THE OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT NOTHING IN THIS OPTION AGREEMENT OR THE PLAN SHALL CONFER UPON THE OPTIONEE ANY RIGHT WITH RESPECT TO FUTURE GRANTS OR CONTINUATION OF THE OPTIONEE’S CONTINUOUS SERVICE, NOR SHALL IT INTERFERE IN ANY WAY WITH THE OPTIONEE’S RIGHT OR THE RIGHT OF THE OPTIONEE’S EMPLOYER TO TERMINATE OPTIONEE’S CONTINUOUS SERVICE, WITH OR WITHOUT CAUSE, AND WITH OR WITHOUT NOTICE.  THE OPTIONEE ACKNOWLEDGES THAT UNLESS THE OPTIONEE HAS A WRITTEN EMPLOYMENT AGREEMENT WITH THE COMPANY TO THE CONTRARY, THE OPTIONEE’S STATUS IS AT-WILL.

The Optionee acknowledges receipt of a copy of the Plan, represents that he or she is familiar with the terms and provisions thereof, and hereby accepts this Option subject to all of the terms and provisions hereof and thereof.  The Optionee has reviewed this Option Agreement, the Plan, and the Exercise Notice in their entirety, has had an opportunity to obtain the advice of counsel prior to executing this Option Agreement, and fully understands all provisions of this Option Agreement, the Plan and the Exercise Notice.  The Optionee hereby agrees that all disputes arising out of or relating to this Option Agreement, the Plan and the Exercise Notice shall be resolved in accordance with Section 15 of this Option Agreement.  The Optionee further agrees to notify the Company upon any change in the residence address indicated in this Option Agreement.

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EXHIBIT A

APPLIED OPTOELECTRONICS, INC. 2006 INCENTIVE SHARE PLAN

STOCK OPTION EXERCISE NOTICE

This Exercise Notice is made this         day of                         , 20       between Applied Optoelectronics, Inc. (the “Company”), and the optionee named below (the “Optionee”) pursuant to the Applied Optoelectronics, Inc. 2006 Incentive Share Plan (the “Plan”).  Unless otherwise defined herein, the capitalized terms used in this Exercise Notice shall have the meaning ascribed to them in the Plan and in the Option Agreement to which this Exercise Notice relates.

Award Number:

Optionee:

Social Security Number:

Address:

Number of Shares Purchased:

Price Per Share:

Aggregate Purchase Price:

Date of Grant:

Vesting Commencement Date:

The Optionee hereby delivers to the Company the Aggregate Purchase Price set forth above in cash as indicated below or to the extent provided for in the Option Agreement and approved by the Committee by accepting this Exercise Notice, as follows (as applicable, check and complete):

in cash in the amount of $                        , receipt of which is acknowledged by the Company;

[N/A]             through a “same-day-sale” commitment, delivered herewith, from the Optionee and the NASD Dealer named therein in the amount of $                                      ;

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[N/A]             through a “margin” commitment, delivered herewith, from the Optionee and the NASD Dealer named therein in the amount of $                                    ;

[N/A]             by delivery of                               Qualifying Shares, owned free and clear of all liens, claims, encumbrances or security interests, and valued at the current Fair Market Value of $                            per share.

The Company and the Optionee (the “Parties”) hereby agree as follows:

17.                               Purchase of Shares.  On this date and subject to the terms and conditions of this Exercise Notice, the Optionee hereby exercises the Option granted in the Stock Option Agreement (“Option Agreement”) between the Parties, dated as of the Date of Grant set forth above, with respect to the Number of Shares Purchased set forth above of the Common Stock (the “Shares”) at the Aggregate Purchase Price set forth above (the “Aggregate Purchase Price”) equal to the Price Per Share set forth above (the “Purchase Price Per Share”) multiplied by the Number of Shares Purchased set forth above.  The term “Shares” refers to the Shares purchased under this Exercise Notice and includes all securities received (a) in replacement of the Shares, and (b) as a result of stock dividends or stock splits in respect of the Shares.

18.                               Representations of the Optionee.  The Optionee represents and warrants to the Company that the Optionee has received, read and understood the Plan, the Option Agreement and this Exercise Notice and agrees to abide by and be bound by their terms and conditions.

19.                               Rights as Stockholder.  Until the stock certificate evidencing the Shares is issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a shareholder shall exist with respect to the Shares, notwithstanding the exercise of the Option.  The Company shall issue (or cause to be issued) such stock certificate promptly after the Option is exercised.  No adjustment will be made for a dividend or other right for which the record date is prior to the date the stock certificate is issued.

20.                               Tax Withholding Obligations.  The Optionee agrees to satisfy all applicable federal, state and local income, employment and other tax withholding obligations and herewith delivers to the Company the amount necessary, or has made arrangements acceptable to the Company, to satisfy such obligations as provided in the Plan and the Option Agreement.

21.                               Tax Consequences.  The Optionee understands that he or she may suffer adverse tax consequences as a result of the Optionee’s purchase or disposition of the Shares.  The Optionee represents that the Optionee has consulted with any tax consultant(s) he or she deems advisable in connection with the purchase or disposition of the Shares and that Optionee is not relying on the Company for any tax advice.

22.                               Successors and Assigns.  The Company may assign any of its rights under this Exercise Notice, and this Exercise Notice shall inure to the benefit of the successors and assigns of the Company.  Subject to the restrictions on transfer herein set forth, this Exercise Notice shall be binding upon the Optionee and his or her heirs, executors, administrators, successors and permitted assigns.

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23.                               Interpretive Matters.  Whenever required by the context, pronouns and any variation thereof shall be deemed to refer to the masculine, feminine, or neuter, and the singular shall include the plural, and vice versa.  The term “include” or “including” does not denote or imply any limitation.  The captions and headings used in this Exercise Notice are inserted for convenience and shall not be deemed a part of this Exercise Notice for construction or interpretation.

24.                               Dispute Resolution.  The provisions of Section 15 of the Option Agreement shall be the exclusive means of resolving disputes arising out of or relating to this Exercise Notice.

25.                               Entire Agreement; Governing Law.  This Exercise Notice, with the Plan and the Option Agreement, constitute the entire agreement of the Parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Parties with respect to the subject matter hereof, and may not be modified adversely to the Optionee’s interest except by means of a writing signed by the Parties.  Nothing in this Exercise Notice or in the Plan or the Option Agreement (except as expressly provided herein or therein) is intended to confer any rights or remedies on any person other than the Parties.  This Exercise Notice (like the Plan and the Option Agreement) is to be construed in accordance with and governed by the internal laws of the State of Texas, without giving effect to any choice-of-law rule that would cause the application of the laws of any jurisdiction other than the internal laws of the State of Texas to the rights and duties of the Parties.  Should any provision of the Plan, the Option Agreement, or this Exercise Notice be determined by a court of law to be illegal or unenforceable, such provision shall be enforced to the fullest extent allowed by law, and the other provisions shall nevertheless remain effective and shall remain enforceable.

26.                               Notice.  Any notice or other communication required or permitted hereunder shall be given in writing and shall be deemed given, effective, and received upon prepaid delivery in person or by courier or upon the earlier of delivery or the third business day after deposit in the United States mail if sent by certified mail, with postage and fees prepaid, addressed to the other Party at its address as shown beneath its signature in the Option Agreement, or to such other address as such Party may designate in writing from time to time by notice to the other Party in accordance with this Section 10.

27.                               Further Instruments.  Each Party agrees to execute such further instruments and to take such further action as may be necessary or reasonably appropriate to carry out the purposes and intent of this Exercise Notice.

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