Document:

Exhibit 10.2

 

	Promissory Note
	
        Unconditional payment shall be made against
        this promissory note on      (year)      (month)      (day) of ROC.

         

        E.SUN BANK or its designated person

         

        NTD 90,000,000 only

         

        1.The interest
        is calculated based on _______ interest rate ______ annual interest __________% (at present it is ______% of annual interest) in
        □fixed or □floating mode since the issuing date of this note and is paid by month. If the floating mode is selected,
        the drawer agrees to adjust the abovementioned interest based on the adjustment of _______interest rate regulated above. In case
        of any delay in paying the interest or failure to perform obligations when due, a penalty shall be charged as follows: 10% of the
        agreed interest rate for the delay or failure that lasts for less than six months, as from the due date; 20% of the agreed interest
        rate for the delay or failure that exceeds six months.

         

        2.The promissory
        note is protest waived and bears no notification obligation specified in Article 89 of the Negotiable Instruments Law.

         

        3.Place
        of payment: No. 336, Siyuan Road, Xinzhuang District, New Taipei City

         

         

        Drawer:
        Applied Optoelectronics, Inc. (AOI) Taiwan Branch

        (Registered Stamp)

        Responsible Person:
        Chih-Hsiang Lin

         

        Address: No. 18 Gong
        4th Road, Linkou District, New Taipei City

         

         

        Drawer:

        (Registered
        Stamp)

         

        Address:

         

        Drawer:

        (Registered
        Stamp)

         

        Address:

         

        Drawer:

        (Registered
        Stamp)

         

        Address:

         

        April 8th,
        105 of ROC

 

Credited
Account Number: 

 

Approval Number: H155422083
                             Stamp                             Handled By                              Stamp Verified By

 

	L577 2005.01 	(For benchmark or time deposit interest rate)

 

 

    	 	
 1
	 

     

    

 

Letter of Authorization

 

All the drawers of this
Letter of Authorization sign and provide you with a promissory note valued at NTD 90,000,000 only on April 8th, 105
of ROC as a liability guarantee. As required by the actual situation, you or your agent or employee is hereby authorized to fill
out the promissory note with the due date, interest rate, place of payment, and any other information required for effectively
performing the rights regarding the promissory note. The drawers shall not revoke or limit this authorization without your written
consent.

 

Regards,

 

E.SUN BANK

 

Drawer: Applied Optoelectronics,
Inc. (AOI) Taiwan Branch

(Registered
Stamp)

Responsible Person:
Chih-Hsiang Lin

 

Drawer:

(Registered
Stamp)

 

Drawer:

(Registered
Stamp)

 

Drawer:

(Registered
Stamp)

 

April 8th, 105 of ROC

 

Credited Account Number:

 

Approval Number: H155422083
                             Stamp                             Handled
By                              Stamp
Verified By

 

	L577 2005.01 	(For benchmark or time deposit interest rate)

 

 

    	 	
 2
	 

     

    

 

	Promissory Note
	
        Unconditional payment shall be made against
        this promissory note on (year) (month) (day) of ROC.

         

        E.SUN BANK or its designated person

         

        NTD 120,000,000 only

         

        1.The interest
        shall be □ fixed interest V calculated dynamically (current annual interest
        rate 1.7%) based on your □ benchmark interest rate □ monthly benchmark interest rate V
        personal monthly time deposit interest rate index plus the 0.48% annual interest rate, and be paid monthly. If the interest is
        calculated dynamically, the aforesaid interest rate can be adjusted according to changes in your □ benchmark interest rate
        □ monthly benchmark interest rate V personal monthly time deposit interest
        rate index. In case of an overdue interest payment or liability, additional interests calculated based on 10% of the agreed interest
        rate shall be charged within 6 months after the due date while additional interests calculated based on 20% of the agreed interest
        rate shall be charged after the 6 months as breach penalties.

         

        2.The promissory
        note is protest waived and bears no notification obligation specified in Article 89 of the Negotiable Instruments Law.

         

        3.Place
        of payment: No. 336, Siyuan Road, Xinzhuang District, New Taipei City

         

         

        Drawer:
        Applied Optoelectronics, Inc. (AOI) Taiwan Branch

        (Registered Stamp)

        Responsible Person:
        Chih-Hsiang Lin

         

        Address: No. 18 Gong
        4th Road, Linkou District, New Taipei City

         

         

        Drawer:

        (Registered
        Stamp)

         

        Address:

         

        Drawer:

        (Registered
        Stamp)

         

        Address:

         

        Drawer:

        (Registered
        Stamp)

         

        Address:

         

        April 8th,
        105 of ROC

 

Credited
Account Number: 

 

Approval Number: H155422081
                             Stamp                             Handled By                              Stamp Verified By

 

	L577 2009.01 	(For benchmark or time deposit interest rate)

 

 

    	 	
 3
	 

     

    

 

Letter of Authorization

 

All the drawers of this
Letter of Authorization sign and provide you with a promissory note valued at NTD 120,000,000 only on April 8th, 105
of ROC as a liability guarantee. As required by the actual situation, you or your agent or employee is hereby authorized to fill
out the promissory note with the due date, interest rate, place of payment, and any other information required for effectively
performing the rights regarding the promissory note. The drawers shall not revoke or limit this authorization without your written
consent.

 

Regards,

 

E.SUN BANK

 

Drawer: Applied Optoelectronics,
Inc. (AOI) Taiwan Branch

(Registered
Stamp)

Responsible Person:
Chih-Hsiang Lin

 

Drawer:

(Registered
Stamp)

 

Drawer:

(Registered
Stamp)

 

Drawer:

(Registered
Stamp)

 

April 8th ,105 of ROC

 

Credited Account Number:

 

Approval Number: H155422081
                             Stamp                             Handled By                              Stamp Verified By

 

	L577 2009.01 	(For benchmark or time deposit interest rate)

 

 

    	 	
 4Exhibit 10.3

 

E.SUN BANK Crediting Conditions Notice and Letter of Confirmation

 

Notice No.: 165300997701

 

I. The following credit limits are granted
according to your crediting application :

 

Categories and conditions about general
credit limit:

 

	No.	
        Category

        Sub-category
	Amount	
        Use Period/First Time of Use/Use Mode/

        Interest Rate/Repayment Mode

	(I)	
        General credit limit

        Applied to items 1 and 2
	
        NTD

        90,000,000 only
	
        Use period: 105/02/03 - 106/02/03

        First time of use: 105/06/03 or earlier

        Use mode: revolving

	1 	
        Import financing (O/A)

        Use period: 180 days
	
        USD

        1,500,000 only
	
        Interest rate: It is LIBOR plus the 1.700%
        annual interest rate and the interest is calculated from the borrowing date, unless otherwise stipulated in a credit use application.

        Repayment mode: The interest is paid monthly
        and the principle is repaid upon maturity.

	2 	
        Export financing (O/A)

        Use period: 120 days
	
        USD

        2,000,000 only
	
        Interest rate: It is LIBOR plus the 1.700%
        annual interest rate and the interest is calculated from the borrowing date, unless otherwise stipulated in a credit use application.

        Repayment mode: The interest is paid monthly
        and the principle is repaid upon maturity.

 

Categories and conditions about ordinary
credit limit:

 

	No.	Category	Amount	
        Use Period/First Time of Use/

        Interest Rate/Repayment Mode

	(II)	
        Short-term loan

        Use mode: revolving

        Use period: 6 months
	
        NTD

        120,000,000 only
	
        Use period: 105/02/03 - 106/02/03

        First time of use: 105/06/03 or earlier

        Interest rate: It is the personal monthly
        time deposit interest rate index plus 0.480% of the annual interest rate. That is, the interest is calculated based on the 1.700%
        floating interest rate from the borrowing date, unless otherwise stipulated in a credit use application.

        Repayment mode: The interest is paid monthly
        and the principle is repaid upon maturity.

 

	  Joint guarantor: 
	  Credit Category No.	Joint guarantor:
	 	 

 

    	 	
 1
	 

     

    

 

	  Other conditions:
	
          (I) General credit limit shared by items
        1 and 2:

         

        (1) From the month following
        the first time of use, it is checked every three months whether the total of the amount received through remittance and amount
        credited with notes in the three months exceeds NTD 150,000,000. If no, the credit limit is reduced to NTD 60,000,000 from the
        10th day of the month of verification. The outstanding debt exceeding the new credit limit shall be repaid within 5 days. If this
        requirement is met in the next month of verification, the original credit limit is restored from the 10th day of that month. If
        the requirement is not met in two consecutive verification months, the credit limit can no longer be used and the outstanding debt
        shall be repaid within 5 days.

         

        (2) 20% of the credit balance
        is used as a pledge of deposit.

         

        (3) Import financing (O/A):
        An invoice must be provided when the credit limit is used and a loan equal to the total value of invoice is made. The loan in USD
        can be replaced by a loan in NTD. The interest is calculated dynamically based on the personal monthly time deposit interest rate
        index of the bank (1.220% currently) plus the annual interest rate 1.080% or higher. Each loan can be used for up to 180 days.

         

        (4) Export financing (O/A):
        An invoice and a customs declaration form must be provided when the credit limit is used and a loan equal to 80% of the total value
        of the invoice is made. Each loan can be used for up to 120 days. A loan is available only when the buyer is Applied Optoelectronics
        Inc., Global Technology Inc., ZT Group, or Quanta Computer Incorporated. The sales income shall be credited to our dedicated repayment
        account and used to repay the outstanding debt for export financing (O/A). The positive balance will be refunded to the customer.
        If the customer fails to credit the account as stipulated, it can no longer use the credit limit and shall repay the outstanding
        debt within 5 days.

         

        (5) If the buyer is the associated
        enterprise Applied Optoelectronics Inc., the loan balance for export financing (O/A) shall not exceed USD 1,500,000.

         

        (6) When a loan for import
        or export financing (O/A) is used, a 0.3% business fee is charged.

         

        (7) The total forex credit
        balance shall not exceed USD 2,600,000.

         

        (8) The interest is calculated
        based on the USD interest rate (LIBOR + 1.700%)/0.946 or a higher interest rate. The interest rate shall not be lower than TAIFX3/0.946
        for the same period.

         

          (2) Short-term loan

         

        (1) The associated enterprise
        Applied Optoelectronics Inc. shall provide a certificate of foreign currency time deposit that we issue as a pledge of deposit
        with us. The deposit shall be 100% of the credit balance or RMB 24,680,000.

         

        Blank below

 

II. Other precautions

 

(1) You
shall provide meeting minutes proving your board's agreement on the aforesaid credit limits.

 

(2) This
Crediting Conditions Notice and Letter of Confirmation is part of the General Crediting Agreement signed between
E.Sun Bank and Applied Optoelectronics, Inc. Taiwan Branch. The matters not specified herein shall be handled according to related
credit use applications.

 

III. Service personal and hotline numbers

 

	RM: Huang Youzong	ARM: Li Rueitang	Crediting management team: Lin Peiyi	Forex team: Jhang Yadi
	02-29971313 #216	02-29971313 #212	02-29971313 #203	02-29971313 #239

Regards,

 

Applied Optoelectronics, Inc. (AOI) Taiwan
Branch

 

Xinzhuang Corporate Finance Center of E.SUN
Bank

 

 

    	 	
 2
	 

     

    

 

Statement of the Company (Borrower):

 

I. We
acknowledge and agree that the credit limits and conditions you approve do not constitute a promise, and that you may refuse to
offer the aforesaid credit limits and conditions and meanwhile reserve the right to approve or reject our credit use applications
when you cannot obtain quotation because quoting stops or any other issue occurs on the market, when the joint guarantor or a representative
carries out an unusual action, or when a matter, such as the market condition or capital cost, that makes you unable to offer the
aforesaid credit limits and conditions occurs.

 

II. After
you notify us of the aforesaid credit limits and conditions, we can use the credit limit only after negotiating with you on the
interest rate, amount, use period, and other conditions and recording them in related credit use applications.

 

III. We
acknowledge receiving this Crediting Conditions Notice and Letter of Confirmation, have read it within a reasonable period
and fully understood its content and the aforesaid matters, and are willing to comply with the specifications herein.

 

Regards,

 

E.SUN BANK

 

Borrower: Applied Optoelectronics,
Inc. (AOI) Taiwan Branch

 

No.: 28410552

 

Responsible Person: Chih-Hsiang
Lin

 

________________________________________
(Registered Stamp)

 

 

 

April 8th, 105 of ROC

 

Credited Account Number: 009977

Stamp: ___________  Handled
by: ___________  Stamp verified by: ___________

LN1504 2015.11

 

    	 	
3

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