Document:

Non-Exclusive Distributor Agreement - Promate Electronic Co., Ltd.

 Exhibit 4.19 

NON-EXCLUSIVE DISTRIBUTOR AGREEMENT 

This Non-Exclusive Distributor Agreement (the “Agreement”) is made and entered into as of this 27 day of July, 2010
(“Effective Date”), by and between ALPHA & OMEGA SEMICONDUCTOR (HONG KONG) LIMITED, a company duly organized and existing under the laws of Hong Kong, SAR, PRC, with its principle place of business at Room 701, Tesbury
Center, 24-32 Queen’s Road East Wanchai, Hongkong (hereinafter referred to as “AOS”) and PROMATE ELECTRONIC CO., LTD., a company duly organized and existing under the laws of Taiwan, with its principle place of business at 4F
32, SEC. 1 HUAN SHAN RD., NEI HU, TAIPEI 114 TAIWAN, R.O.C. (hereinafter referred to as “Distributor”). 
 In
consideration of the mutual promises herein contained, AOS and Distributor agree as follows: 
  

	1.	DEFINITIONS 

 1.1
“Confidential Information” of a party shall mean any information disclosed by that party to the other party pursuant to this Agreement which is in written, graphic, machine readable or other tangible form and is marked
“Confidential,” “Proprietary” or in some other manner to indicate its confidential nature. Confidential Information may also include oral information disclosed by one party to the other pursuant to this Agreement, provided that
such information is designated as confidential at the time of disclosure and is reduced to writing by the disclosing party within a reasonable time (not to exceed thirty (30) days) after its oral disclosure, and such writing is marked in a
manner to indicate its confidential nature and delivered to the receiving party. 
 1.2 “Customers” shall mean
those purchasers of Products whose principal offices and operations are located in the Territory. 
 1.3 “DSSL
Products” shall mean those Products according to Distributor Standard Stock List or “DSSL”, as AOS and Distributor shall maintain and modify from time to time. 

1.4 “House Accounts” shall mean those Customers in the Territory who purchase Products directly from AOS. House Accounts
designated by AOS at the time of execution of this Agreement are set forth on Exhibit B attached hereto, which may be amended or updated by AOS from time to time at its sole discretion. 

1.5 “Non-standard Products” shall mean those Products not referenced in the DSSL that require special testing, packaging
or otherwise to be modified as requested by Distributor and approved by AOS in writing. 
 1.6 “Proprietary
Rights” shall mean all rights in Products and AOS’s Confidential Information, including, but not limited to, patents, copyrights, trademarks, trade names, know-how, show-how, and trade secrets, irrespective of whether such rights arise
under U.S. or international intellectual property, unfair competition or trade secret laws. 
  

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 1.7 “Products” shall mean Products offered by AOS for sale to Distributor;
Products shall include DSSL Products and Non-standard Products set forth in Exhibit A, which shall be amended or updated by AOS from time to time. 

1.8 “Territory” shall mean the geographic area of China, Hong Kong SAR and Taiwan. 

 

	2.	APPOINTMENT 

 2.1 Appointment
of Nonexclusive Distributor. Subject to the terms and conditions of this Agreement, AOS appoints Distributor, and Distributor hereby accepts such appointment, as AOS’S non-exclusive authorized distributor for sale of Products to Customers
(other than House Account) in the Territory (as these terms are defined in Section 1.8, above). 
 2.2 Designation of
House Account. In the event AOS notifies Distributor that AOS has designated a Customer of Distributor as a new House Account, such Customer will become a House Account effective Ninety (90) days following such notice. At AOS’s sole
discretion, AOS may compensate Distributor for extraordinary sales and distribution efforts rendered prior to the designation of the new House Account. 
  

	3.	DISTRIBUTOR RESPONSIBILITIES 

3.1 Market Promotion. Distributor shall use its best efforts, consistent with prudent business practice, and shall devote such time
as may be commercially reasonably necessary, to conduct an aggressive marketing and selling program and to promote the sale of Products. 

3.2 No Change or Modification. Distributor shall not modify or change Products without the express prior written consent of AOS.

 3.3 Conflict of Interest. Distributor shall not, during the term of this Agreement, directly or indirectly market,
sell, distribute, solicit orders within the Territory for any products which are competitive with Products unless AOS consents thereto in writing in advance, based upon Distributor’s full disclosure of the material facts in seeking such
consent. Any such marketing, sale, distribution or solicitation of the competitive products is considered to be a material breach of this Agreement. 

3.4 Reports. Within two (2) days after the end of each calendar month during the term of this Agreement, Distributor shall
provide AOS with reports of (i) the number of units of Products held by Distributor at the end of such month in inventory in each stocking location, (ii) the distribution of Products in such month by Distributor including, a design in
tracking report, point-of-sale (POS) report, the names and addresses of Customers, and the actual sales price and sales quantity of each of Products sold to each Customer; Distributor shall also provide AOS within thirty (30) days after the end
of each calendar month, with reports of (iii) the general status of Distributor’s network with a particular focus on those dealers representing the greatest share of Product sales and on those dealers targeted to carry and sell Products in
the future, (iv) Distributor’s sales and marketing activities and their impact on sales, (v) financial pro formas, and (vi) any other information AOS reasonably requests. 

 

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 3.5 Compliance with Laws. Distributor shall comply at its own expense with all
applicable laws and regulations currently existing in the Territory relating to the sale, distribution and promotion of Products. Distributor shall not export, directly or indirectly, any Products or related information without first obtaining all
required licenses and approvals from the appropriate government agencies. 
 3.6 Feedbacks. Distributor shall provide AOS
with prompt written notification of any comments or complaints about Products that are made by Customers, and of any problems with Products or their use that Distributor becomes aware of. Such written notification shall be the property of AOS, and
shall be considered to be part of AOS’s Confidential Information. 
 3.7 Referral. Distributor agrees to refer all
prospective customers to AOS when Distributor cannot aggressively pursue distribution to such customers because of geographic location or any other reason; if Distributor cannot aggressively pursue distribution because of price and/or volume, the
parties will negotiate a reasonable referral fee to be mutually agreed upon. Distributor shall also refer directly to AOS inquiries relating to bundling, partnership or other business opportunities with third party vendors, hardware and system
manufacturers and software developers. 
 3.8 Inventory. Distributor shall maintain an inventory of Products in
reasonably sufficient quantities to provide adequate and timely delivery to Customers. At a minimum, such inventory shall include not less than the quantity of Products necessary to meet Distributor’s reasonably anticipated demands for a sixty
(60) day period. Distributor shall promptly notify AOS of all Products, by device type, quantity and price, purchased by the Distributor from a source other than AOS or returned to the Distributor from its customer. 

3.9 Audits. Distributor shall provide AOS with its audited financial statements within three (3) months of the end of its
fiscal year. AOS shall be entitled at any time to audit Distributor’s books and records upon thirty (30) days written notice in order to confirm the accuracy of the reports; provided, that no more than one such audit may be conducted in
any six-month period. Any AOS-elected audit shall be performed at AOS’s own expense during normal business hours, provided that the cost of such audit shall be paid by Distributor if such audit reveals an underpayment by Distributor of more
than five percent (5%) of the amounts payable by Distributor to AOS in any six-month period. 
  

	4.	ORDERS AND ACCEPTANCE 

 4.1
Rolling Forecast. Distributor shall provide AOS at least one month in advance with a good faith rolling six-month sales forecast for the units of Products to be provided by AOS to Distributor hereunder during each month in such calendar
quarter. 
 4.2 Purchase Orders. Distributor shall initiate purchases under this Agreement by submitting written purchase
orders (each, an “Order”) to AOS. Such orders shall state unit quantities, unit descriptions, requested delivery dates, and shipping instructions. No purchase order shall be binding upon AOS until accepted by AOS in writing. AOS
reserves the right to reject orders in whole or in part. Partial shipment of an order shall not constitute acceptance of the entire order. In the event that AOS is unable to fill an accepted purchase order in accordance with the schedule set forth
therein, AOS will use commercially reasonable efforts to fill such order on an allotment basis. This Agreement shall govern all orders placed by Distributor for units of the Product. No terms on purchase orders, invoices or like documents produced
by Distributor shall alter or add to the terms of this Agreement. Any other terms and conditions of sale in conflict with or inconsistent with the terms and conditions of this Agreement, whether contained in Distributor’s preprinted forms or
otherwise, notwithstanding AOS’s acceptance otherwise, shall have no force or effect to the extent of such conflict or inconsistency. 
  

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 4.3 Order Requirements. Distributor’s single purchase order amount shall be in
multiples of the unit quantity calculated in numbers of cartons according to specifications of AOS set forth in Exhibit A. Orders for less than unit quantity multiples will be increased without prior notice to the next larger multiple. Non-standard
Products may have higher minimum purchase requirements as determined by AOS. 
 4.4 Lead Time. Distributor shall submit
purchase orders to AOS in accordance with a lead time of twenty-eight (28) to one hundred and twenty (120) days according to the schedule advised by AOS. In no event shall the lead time for Non-standard Products be less than two
(2) months. AOS shall use commercially reasonable efforts to deliver units of Product at the times set forth in AOS’s written acceptances of Distributor’s purchase orders. 

4.5 Demonstration Units. Orders by Distributor for samples and/or pilot run may be subject to smaller amount and shorter lead time
as shall be requested by Distributor and accepted by AOS. In such cases, products may be ordered in multiples of smaller units (calculated in number of reels or tubes), and in no events shall exceed three such units. 

4.6 Cancellations. Except as provided herein, all orders for Products are non-cancelable and Products are non-returnable (NC/NR).
Orders for DSSL Products may be rescheduled or cancelled 30 days before the scheduled shipment date. Within 30 days of the scheduled shipment date, orders for DSSL Products could be canceled or rescheduled subject to AOS’s prior written
approval. The Nonstandard Products are at all times non-cancelable. Distributor shall contact AOS in advance for pricing and delivery information for orders of Non-standard Products. 

 

	5.	PRICES; PRICE CHANGES; SPECIAL PRICING 

5.1 AOS Price. Subject to the terms and conditions of this Agreement, Distributor shall pay for Products at the then current price
of AOS (the “AOS Price”) at the time of placement of the Order. 
 5.2 Price Change. AOS shall have the
right to revise AOS Price at any time. Price changes shall apply to all purchase orders received after the effective date with the notice, except that any price increase shall be effective immediately upon notice to Distributor and apply to those
accepted but undelivered orders. 
 5.3 Special Pricing. Notwithstanding the AOS Price, special pricing on any one of
Products may be extended to Distributor, in AOS sole discretion, in situations where special pricing is 
  

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necessary for Distributor to obtain sale of Products to a Customer. If AOS elects to extend such special pricing, it will issue a confidential meet comp quote number documenting the special price
quoted. Upon receipt of the meet comp quote number, Distributor may ship Products to Customer from stock and debit AOS for the difference between their invoiced amount, less any prior credits granted by AOS, and the new special pricing. The meet
comp quote number shall be included on all such debits. 
 5.4 Taxes. All AOS Prices are exclusive of any export,
withholding, federal, state and local taxes, duties or excises other than taxes based on AOS’s net income. If AOS pays any taxes, duties or excises which are not included in the fees charged for the Product, AOS shall itemize such taxes, duties
or excises as a separate item on its invoices to Distributor, and Distributor shall reimburse AOS for such taxes, duties or excises; provided, that Distributor shall not be required to make any such reimbursement if it provides a valid tax exemption
certificate to AOS prior to shipment. 
  

	6.	TERMS OF PAYMENT 

 6.1 Payment
Terms. Terms of payment shall be net thirty (30) days. All payments shall be in U.S. Dollars. AOS shall submit an invoice to Distributor upon shipment of Products to Distributor. The invoice shall state the amount to be paid by Distributor
for all Products in such shipment, as well as any taxes, duties or excises paid by AOS which shall be reimbursed by Distributor in accordance with Section 5.4. 

6.2 Credit. Upon Distributor establishes and maintains satisfactory business and credit standings, AOS may revise payment terms
from time to time. Distributor agrees to provide AOS with financial information, bank and trade references, and other information which may be required by AOS to establish an appropriate credit line for Distributor. Subject to AOS’s approval of
Distributor’s credit, the invoiced amount may be paid net thirty (30) days. Nonetheless, AOS shall have the sole discretion to extend or revoke any credit. 

6.3 Late Payments. All amounts which are not timely paid by Distributor as required by this Agreement shall be subject to a late
charge equal to one and one-half percent (1.5%) per month (or, if less, the maximum allowed by applicable law). In the event that any payment due hereunder is overdue, AOS reserves the right to suspend performance until such delinquency is
corrected. 
  

	7.	DELIVERY 

 7.1 Packing and
Shipping. All Products to Distributor shall be packaged in AOS’s standard containers, or, at Distributor’s expense, in accordance with instructions provided by Distributor. Unless otherwise agreed, shipment shall conform to AOS’s
standard shipping procedures CFR Hong Kong (INCOTERMS 2000) (“Delivery Point”). Title and risk of loss shall pass to Distributor at the Delivery Point. All customs duties, freight, insurance and other shipping expenses from the
Delivery Point, as well as any other special packing expenses requested by Distributor, shall be borne by Distributor. Distributor agrees to satisfy all import formalities pertaining to shipment of units of the Product to destinations outside the
United States. 
  

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 7.2 Inspection and Acceptance. Distributor shall have thirty (30) days (the
“Inspection Period”) upon receipt of each shipment to inspect and test Products. If Distributor determines any unit of Products defective, Distributor shall promptly notify AOS of such defects. Defective Products may be returned for
retest, evaluation and examination subject to AOS Returned Material Authorization (“RMA”) procedure and AOS Quality Requirements in EXHIBIT C of this Agreement; provided, that such written notification and request for an RMA number
must be received by AOS during the Inspection Period. Returns must be prepaid by Distributor. When requesting a return authorization, Distributor must supply Distributor’s purchase order number and AOS’s invoice number. Product description
must include lot number and wafer numbers. 
 7.3 Exclusion. AOS will inspect all Products returned pursuant to the
foregoing RMA procedures and AOS Quality Requirements, and AOS will not replace products where the defect is not due to AOS’ fault, including but not limited to misuse, neglect, alteration or improper storage by Distributor. 

7.4 Quality Requirements. Distributor should store, pack, ship, handle and return Products in conformity with AOS Quality
Requirements as provided in EXHIBIT C of this Agreement. 
  

	8.	PROPRIETARY RIGHTS 

 8.1
Acknowledgement. Distributor acknowledge and agree that AOS owns all of the Proprietary Rights. The use by Distributor of the Proprietary Rights is authorized only for the purposes herein set forth and upon termination of this Agreement for
any reason, such authorization will cease. 
 8.2 No Other Rights. Distributor may not, directly or through any person or
entity, in any form or manner, copy, distribute, reproduce, incorporate, use or allow access to Products or modify, prepare derivative works of, decompile, reverse engineer, disassemble or otherwise attempt to derive source code or object code from
Products, except as explicitly permitted under this Agreement or otherwise agreed in writing 
 8.3 Proprietary Notice.
Distributor will ensure that all copies of Products will incorporate copyright and other proprietary notices in the same manner that AOS incorporates such notices in Products or in any manner reasonably requested by AOS. Distributor will not remove
any copyright or other proprietary notices incorporated on or in Products by AOS 
 8.4 Use of Trademarks. During the
term of this Agreement, Distributor may (i) announce to the public that it is an authorized non-exclusive Distributor of Products, and (ii) advertise Products under the trademarks, service marks, marks, and trade names that AOS may adopt
from time to time (the “AOS Trademarks”). AOS shall provide Distributor AOS Trademarks on disk or camera-ready art for production. Distributor understands that AOS has applied for applicable federal and state registration of certain
of its trademarks and agrees, upon AOS’s request, to so indicate on the box containing Products and in any advertisement, promotional materials or other documents that contain Products’ names. Nothing herein will grant to Distributor any
right, title or interest in AOS Trademarks. At no time during or after the term of this Agreement will Distributor challenge or assist others to challenge AOS Trademarks or the registration thereof or attempt to register any trademarks, marks or
trade names confusingly similar to those of AOS. Distributor shall follow reasonable trademark usage guidelines communicated by AOS. 
  

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 8.5 Use of Trade Names. Distributor will present and promote the sale of Products
fairly. Distributor may use AOS’s product names in Distributor’s advertising and promotional media provided (i) that Distributor conspicuously indicates in all such media that such names are trademarks of AOS and (ii) that
Distributor submits all such media to AOS for prior approval and complies with the requirements set forth in subparagraph (d) above. Upon termination of this Agreement for any reason, Distributor will immediately cease all use of Products’
names and AOS Trademarks and, at Distributor’s election, destroy or deliver to AOS all materials in Distributor’s control or possession which bear such names and trademarks, including any sales literature. Distributor will not challenge
any intellectual property rights claimed by AOS in such trademarks. 
  

	9.	CONFIDENTIAL INFORMATION 

 9.1
Nondisclosure, Non Use. Each party shall treat as confidential all Confidential Information of the other party, shall not use such Confidential Information except as set forth herein, and shall use reasonable efforts not to disclose such
Confidential Information to any third party. Without limiting the foregoing, each of the parties shall use at least the same degree of care which it uses to prevent the disclosure of its own confidential information of like importance to prevent the
disclosure of Confidential Information disclosed to it by the other party under this Agreement. Each party shall promptly notify the other party of any actual or suspected misuse or unauthorized disclosure of the other party’s Confidential
Information 
 9.2 Exception. Notwithstanding the above, neither party shall have liability to the other with regard to
any Confidential Information of the other which the receiving party can prove: 
 (a) was in the public domain at
the time it was disclosed or has entered the public domain through no fault of the receiving party; 
 (b) was
known to the receiving party, without restriction, at the time of disclosure, as demonstrated by files in existence at the time of disclosure; 

(c) is disclosed with the prior written approval of the disclosing party; 

(d) was independently developed by the receiving party without any use of the Confidential Information, as demonstrated by
files created at the time of such independent development; 
 (e) becomes known to the receiving party, without
restriction, from a source other than the disclosing party without breach of this Agreement by the receiving party and otherwise not in violation of the disclosing party’s rights; 

(f) is disclosed generally to third parties by the disclosing party without restrictions similar to those contained in
this Agreement; or 
  

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 (g) is disclosed pursuant to the order or requirement of a court,
administrative agency, or other governmental body; provided, however, that the receiving party shall provide prompt notice thereof to the disclosing party to enable the disclosing party to seek a protective order or otherwise prevent or restrict
such disclosure. 
 9.3 Return of Confidential Information. Upon expiration or termination of this Agreement, each party
shall return all Confidential Information received from the other party. 
 9.4 Remedies. Any breach of the restrictions
contained in this Section 9 is a breach of this Agreement which may cause irreparable harm to the nonbreaching party. Any such breach shall entitle the nonbreaching party to injunctive relief in addition to all legal remedies 

9.5 Confidentiality of Agreement. AOS shall not have any obligation to furnish any data, drawings, prints or the like whatsoever
to Distributor or its customers. Each party shall be entitled to disclose the existence of this Agreement, but agrees that the terms and conditions of this Agreement shall be treated as Confidential Information and shall not be disclosed to any
third party; provided, however, that each party may disclose the terms and conditions of this Agreement 
 (a) by
AOS’s prior written consent, 
 (b) as required by any court or other governmental body 

(c) as otherwise required by law 

(d) to legal counsel of the parties 

(e) in confidence, to accountants, banks, and financing sources and their advisors 

(f) in connection with the enforcement of this Agreement or rights under this Agreement; or 

(g) in confidence, in connection with an actual or proposed merger, acquisition, or similar transaction. 

 

	10.	LIMITED WARRANTY AND LIMITATION OF LIABILITY 

10.1 Sole Warranty. THE SOLE WARRANTY, IF ANY, PROVIDED BY AOS IN CONNECTION WITH THE PRODUCT SHALL BE TO DISTRIBUTOR. AOS MAKES NO
WARRANTIES TO CUSTOMERS. 
 10.2 Warranty Period. AOS shall provide a limited warranty for each of Products against
defects in material and workmanship under normal use and service or in normal packing and storage conditions as provided in EXHIBIT C “Quality Requirements” of this Agreement for a period of one-year from the date of delivery to
Distributor. 
 10.3 Exclusive Remedy. IF THE PRODUCT FAILS TO COMPLY WITH THE WARRANTY IN SECTION 10.2, AOS’S
EXCLUSIVE LIABILITY, AND THE EXCLUSIVE REMEDY OF DISTRIBUTOR, SHALL BE, AT AOS’S SOLE OPTION, EITHER (i) REPLACEMENT OF THE DEFECTIVE PRODUCT OR PART, OR (ii) RETURN OF THE PRICE PAID BY SUCH DISTRIBUTOR FOR SUCH PRODUCT. THE WARRANTY
IS VOID IF FAILURE OF THE PRODUCT IS (i) THE RESULT OF OCCURRENCES DURING SHIPMENT TO OR FROM DISTRIBUTOR, (ii) CAUSED BY THE USE OR OPERATION OF PRODUCTS IN AN APPLICATION OR ENVIRONMENT OTHER THAN THAT INTENDED OR RECOMMENDED BY AOS,
(iii) CAUSED BY MODIFICATIONS NOT MADE BY AOS, OR (iv) THE RESULT OF THE PRODUCT BEING SUBJECTED TO UNUSUAL PHYSICAL OR ELECTRICAL STRESS. 
  

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 10.4 No Other Warranty. EXCEPT AS EXPRESSLY PROVIDED IN THIS SECTION 10, AOS
PROVIDES NO WARRANTY, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PRODUCT AND DOCUMENTATION. 

 

	11.	INDEMNIFICATION 

 11.1
Indemnification by AOS. AOS shall defend or at its option settle, any claim, suit or proceeding brought against Distributor on the issue of infringement of any issued third-party patents by Products distributed by Distributor in the manner
permitted in this Agreement. The foregoing obligation is conditioned upon Distributor providing AOS with prompt notification of any such claim, sole control over the defense and settlement thereof, and all reasonable cooperation in the defense and
settlement thereof, provided that Distributor provides AOS with (i) prompt written notice of such claim or action, (ii) sole control and authority over the defense or settlement of such claim or action and (iii) proper and full
information and reasonable assistance to defend and/or settle any such claim or action. 
 11.2 Injunction. In the event
that any Product is, or in AOS’s sole opinion is likely to be, enjoined due to the type of infringement described in Section 11.1, AOS, at its option and expense, may either (i) modify Products so that they become non-infringing,
(ii) replace Products with functionally equivalent non-infringing Products reasonably acceptable to Distributor or, if the foregoing alternatives are not reasonably available to AOS, (iii) terminate this Agreement. 

11.3 Exceptions. Notwithstanding the provisions of Sections 11.1 and 11.2, AOS will have no liability to the extent that any such
claim would have been avoided but for (i) use of Products with any other products not provided by AOS or (ii) modification of Products after delivery by AOS. 

11.4 Limitation. THE FOREGOING PROVISIONS OF THIS SECTION 11 STATE THE ENTIRE LIABILITY AND OBLIGATIONS OF AOS AND THE EXCLUSIVE
REMEDY OF DISTRIBUTOR, WITH RESPECT TO ANY ALLEGED OR ACTUAL INFRINGEMENT OF PATENTS, COPYRIGHTS, TRADE SECRETS, TRADEMARKS OR OTHER INTELLECTUAL PROPERTY RIGHTS BY PRODUCTS OR THEIR REPRODUCTION, DISTRIBUTION OR USE. 

11.5 Indemnification by Distributor. Distributor agrees to indemnify, defend and hold AOS and its affiliated companies and their
directors, officers, employees, and agents (collectively, 
  

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“Protected Parties”) harmless from and against any and all claims (including those for personal injury or death) and liabilities (including attorneys’ and other professional fees
and other costs of litigation) by any other party arising out of or attributable to Distributor’s representation of Products in a manner inconsistent with AOS’s Product descriptions and warranties or from Distributor’s marketing,
distribution, use or sale of Products, other than claims described in Section 11.1. AOS shall have the right to participate at its expense in any such dispute. 
  

	12.	TERM AND TERMINATION 

 12.1
Term. This Agreement shall become effective from the Effective Date and shall remain in full force and effect for a period of five (5) years, unless earlier terminated pursuant to the provisions in this Agreement. Thereafter, the
Agreement shall be automatically renewed for additional one (1) year periods. 
 12.2 Termination for Convenience.
This Agreement may be terminated by either party for any reason or no reason, whether or not extended beyond the initial term, by giving the other party written notice ninety (90) days in advance. 

12.3 Termination for Cause. Except as set forth in the last sentence of this Section 12.3, if either party defaults in the
performance of any material provision of this Agreement, then the non-defaulting party may give written notice to the defaulting party that if the default is not cured within thirty (30) days the Agreement will be terminated. If the
non-defaulting party gives such notice and the default is not cured during the thirty (30) day period, then the Agreement shall automatically terminate at the end of that period. Notwithstanding the foregoing, if Distributor breaches the
provisions of Section 9 hereof, then AOS shall be entitled to terminate this Agreement effective immediately upon delivery of written notice to Distributor. 

12.4 Termination for Insolvency and Other Events. This Agreement shall terminate, without notice, (i) upon the institution by
or against either party of insolvency, receivership or bankruptcy proceedings or any other proceedings for the settlement of such party’s debts, (ii) upon either party’s making an assignment for the benefit of creditors, or
(iii) upon either party’s dissolution or ceasing to do business. 
 12.5 Effect of Termination. Upon
termination of this Agreement, Distributor shall make such disposition of price lists, advertising materials and other materials furnished by AOS as AOS may direct. AOS’s name, AOS’s Trademarks, and similar identifying symbols shall not be
displayed or used by Distributor thereafter. 
 12.6 No Liability. In the event of termination by either party in
accordance with any of the provisions of this Agreement, neither party shall be liable to the other, because of such termination, for compensation, reimbursement or damages on account of the loss of prospective profits or anticipated sales or on
account of expenditures, inventory, investments, leases or commitments in connection with the business or goodwill of either party. Termination shall not, however, relieve either party of any obligations incurred prior to the termination, including,
without limitation, the obligation of Distributor to pay AOS for Products purchased prior to such termination. 
  

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 12.7 Survival of Certain Terms. The provisions of Sections 1, 3.9, 5, 6, 8, 9, 10,
11, 12, 13, 14, and 15 of this Agreement, and all payment obligations incurred during the term of this Agreement, shall survive the expiration or termination of this Agreement for any reason. The provisions of Section 9 shall survive the
expiration or termination of this Agreement for five (5) years. All other rights and obligations of the parties shall cease upon termination of this Agreement. 
  

	13.	LIMITATION OF LIABILITIES 

 13.1
Limitation of Liabilities. IN NO EVENT SHALL AOS’S CUMULATIVE LIABILITY ARISING OUT OF THIS AGREEMENT EXCEED THE AMOUNT RECEIVED BY AOS FROM DISTRIBUTOR UNDER THE PURCHASE ORDER WHICH CONTAINS THE PRODUCT DIRECTLY GIVES RISE TO THE
CLAIM. IN NO EVENT SHALL AOS BE LIABLE FOR COSTS OF PROCUREMENT OF SUBSTITUTE PRODUCTS OR SERVICES, LOST PROFITS OR ANY CONSEQUENTIAL, SPECIAL, INCIDENTAL, OR INDIRECT DAMAGES, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY (INCLUDING NEGLIGENCE OR
STRICT LIABILITY), ARISING OUT OF THIS AGREEMENT. DISTRIBUTOR ACKNOWLEDGES AND AGREES THAT THE AMOUNTS PAYABLE HEREUNDER BY AOS ARE BASED IN PART UPON THESE LIMITATIONS, AND FURTHER AGREES THAT THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY
FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. 
 13.2 Limitation on Actions. NO ACTONS, REGARDLESS OF FORM, ARISING
OUT OF THIS AGREEMENT, MAY BE BROUGHT BY DISTRIBUTOR MORE THAN ONE (1) YEAR AFTER THE CAUSE OF ACTION HAS ARISEN. 
  

	14.	NOTICES 

 14.1 All notices
required or permitted hereunder shall be in writing and shall be delivered (a) by facsimile, (b) personally, or (c) mailed by certified or registered mail, return receipt requested and postage prepaid, addressed to the addressed
below. Delivery by facsimile is effective upon receipt of successful fax transmission and shall be followed by delivery by mail as set forth above. Notice by personal delivery is effective upon receipt of the notice. Notice sent by mail shall for
all purposes of this Agreement be treated as being effective or having been given three days after mail. 
 To AOS: 

Alpha & Omega Semiconductor (Hong Kong), Ltd. 

Room 701, Tesbury Center, 24-32 Queen’s Road East 

Wanchai, Hongkong 

Attention: General Manager 
 To
DISTRIBUTOR: 
 Promate Electronic Co., LTD. 

4F 32, SEC. 1 HUAN SHAN RD., NEI HU, TAIPEI 114 TAIWAN, R.O.C. 

Attention: __________________________ 
  

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	15.	GENERAL 

 15.1 Authority.
Both parties represent and warrant to each other that they have the right and lawful authority to enter into this Agreement. 

15.2 Entire Agreement. This Agreement constitutes the entire agreement of the parties pertaining to the subject matter hereof, and
merges all prior negotiations and drafts of the parties with regard to the transactions contemplated herein. Any and all other written or oral agreements existing between the parties hereto regarding such transactions are expressly canceled.

 15.3 No Conflict. In the event of a conflict or inconsistency between the terms of this Agreement and those of any
order, quotation, solicitation or other communication from one party to the other, the terms of this Agreement shall be controlling. 

15.4 Amendments and Waivers. No modification, change or amendment to this Agreement, or any waiver of any rights in respect
hereto, shall be effective unless in writing signed by the parties 
 15.5 Successors and Assigns. Distributor shall not
assign any of its rights, obligations or privileges (by operation of law or otherwise) hereunder without the prior written consent of AOS. AOS shall have the right to assign its rights, obligations and privileges hereunder to an assignee that agrees
in writing to be bound by the terms and conditions of this Agreement. The terms and conditions of this Agreement shall inure to the benefit of and be binding upon the respective permitted successors and assigns of the parties. Nothing in this
Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies, obligations, or liabilities under or by reason of this Agreement, except as
expressly provided in this Agreement. 
 15.6 Independent Contractor. Neither party shall, for any purpose, be deemed to
be an agent of the other party and the relationship between the parties shall only be that of independent contractors. Neither party shall have any right or authority to assume or create any obligations or to make any representations or warranties
on behalf of any other party, whether express or implied, or to bind the other party in any respect whatsoever. 
 15.7
Export Control. Distributor understands that AOS may be subject to regulation by agencies of the U.S. government, including the U.S. Department of Commerce, which prohibits export or diversion of certain products and technology to certain
countries. Any and all obligations of AOS to provide Products, as well as any technical assistance, will be subject in all respects to such United States laws and regulations and will from time to time govern the license and delivery of technology
and products abroad by persons subject to the jurisdiction of the United States, including the Export Administration Act of 1979, as amended, any successor legislation, and the Export Administration Regulations issued by the Department of Commerce,
International Trade Administration, or Office of Export Licensing. Distributor warrants that it will comply in all respects with the export and re-export restrictions for all Products shipped to Distributor. Distributor will take all actions which
may be reasonably necessary to assure that no end-user contravenes such United States laws or regulations. 
  

 -12- 

 15.8 Force Majeure. In the event that either party is prevented from performing or is
unable to perform any of its obligations under this Agreement (other than a payment obligation) due to any Act of God, fire, casualty, flood, earthquake, war, strike, lockout, epidemic, destruction of production facilities, riot, insurrection,
material unavailability, or any other cause beyond the reasonable control of the party invoking this section, and if such party shall have used its best efforts to mitigate its effects, such party shall give prompt written notice to the other party,
its performance shall be excused, and the time for the performance shall be extended for the period of delay or inability to perform due to such occurrences. Notwithstanding the foregoing, if such party is not able to perform within thirty
(30) days after the event giving rise to the excuse of force majeure, the other party may terminate this Agreement. 
 15.9
Severability. If one or more provisions of this Agreement are held to be unenforceable under applicable law, the parties agree to renegotiate such provision in good faith, in order to maintain the economic position enjoyed by each party as
close as possible to that under the provision rendered unenforceable. In the event that the parties cannot reach a mutually agreeable and enforceable replacement for such provision, then (i) such provision shall be excluded from this Agreement,
(ii) the balance of the Agreement shall be interpreted as if such provision were so excluded and (iii) the balance of the Agreement shall be enforceable in accordance with its terms. 

15.10 Titles and Subtitles. The titles and subtitles used in this Agreement are used for convenience only and are not to be
considered in construing or interpreting this Agreement. 
 15.11 Choice of Law; Dispute Resolution. This Agreement shall
be governed by and construed pursuant to the laws of the State of California, U.S.A., without reference to principals of conflicts of laws. All disputes arising out of this shall be settled by final binding arbitration in Santa Clara County,
California, pursuant to the Commercial Arbitration Rules of the American Arbitration Association. Judgment on the award rendered by the arbitrators may be entered in any court having competent jurisdiction thereof. Notwithstanding the foregoing, the
parties may apply to any court of competent jurisdiction in Santa Clara County, California, U.S.A., for a temporary restraining order, preliminary injunction, or other interim or conservatory relief, as necessary, without breach of this arbitration
agreement and without any abridgment of the powers of the arbitrators, and agree that such courts shall have exclusive jurisdiction of any such action. 

15.12 Advice of Legal Counsel. Each party acknowledges and represents that, in executing this Agreement, it has had the
opportunity to seek advice as to its legal rights from legal counsel and that the person signing on its behalf has read and understood all of the terms and provisions of this Agreement. This Agreement shall not be construed against any party by
reason of the drafting or preparation thereof. 
 [SIGNATURE PAGE FOLLOWS] 

 

 -13- 

 IN WITNESS WHEREOF, THE PARTIES HERETO HAVE EXECUTED THIS AGREEMENT AS OF THE DATE FIRST WRITTEN ABOVE.

									
	PROMATE ELECTRONIC CO., LTD. 	 		 	 ALPHA & OMEGA SEMICONDUCTOR

(HONG KONG) LIMITED

					
	Signature:	 	 /s/ C.L. Hsieh
	 		 	Signature:	 	 /s/ Phil Lee

					
	Name:	 	 C.L. Hsieh
	 		 	Name:	 	 Phil Lee

					
	Title:	 	 Vice President
	 		 	Title:	 	 General Manager

					
	Date:	 	 July 27, 2010
	 		 	Date:	 	 July 27, 2010

 

 -14- 

 EXHIBIT A 

PRODUCTS 
 AOS MOSFET
and POWER IC Products, as provided by AOS from time to time. 
 Purchase Order Quantity Requirement 

 

									
	 PKG
	  	Reel Per Carton	  	Unit Per Reel or Tube	  	Qty in Carton	  	Min Order Qty
	 SOT23 3L/5L/6L/SC70/SC89/SC75/WLCSP/SOD523
	  	32	  	3,000	  	96,000	  	3,000
	 SO8
	  	10	  	3,000	  	30,000	  	3,000
	 UltraSO-8
	  	10	  	3,000	  	30,000	  	3,000
	 TSSOP-8
	  	10	  	3,000	  	30,000	  	3,000
	 TSOP-6
	  	32	  	3,000	  	96,000	  	3,000
	 PDIP-8
	  	NA	  	50	  	20,000	  	5,000
	 TO-251
	  	NA	  	80	  	24,000	  	4,000
	 TO220/TO220A/TO220F/TO262/TO262F
	  	NA	  	50	  	4,000	  	1,000
	 TO263
	  	10	  	800	  	8,000	  	800
	 TO252 DPAK/Ultra-DPAK
	  	10	  	2,500	  	25,000	  	2,500
	 SO14
	  	NA	  	50	  	40,000	  	10,000
	 DFN2X5/DFN3X3 EP
	  	10	  	5,000	  	50,000	  	5,000
	 DFN1.2X1.6
	  	15	  	3,000	  	45,000	  	3,000
	 DFN1.6X1.6
	  	15	  	3,000	  	45,000	  	3,000
	 DFN2X2
	  	15	  	3,000	  	45,000	  	3,000
	 DFN2.6X2.6/DFN3.5X1.2
	  	10	  	3,000	  	30,000	  	3,000
	 DFN3X1.35(A)/DFN1.8X1.2/DFN2.5X1.0/DFN1.6X1.0/DFN2.5X1.2
	  	15	  	3,000	  	45,000	  	3,000
	 DFN3X2
	  	15	  	3,000	  	45,000	  	3,000
	 DFN3X3
	  	15	  	3,000	  	45,000	  	3,000
	 DFN 5X4/DFN 5X6
	  	10	  	3,000	  	30,000	  	3,000
	 DFN7X4
	  	10	  	3,000	  	30,000	  	3,000
	 DFN4X1.6(A)
	  	10	  	5,000	  	50,000	  	5,000
	 SOT143
	  	15	  	3,000	  	45,000	  	3,000
	 MSOP8
	  	10	  	3,000	  	30,000	  	3,000
	 MSOP10
	  	10	  	3,000	  	30,000	  	3,000
	 SOD923
	  	15	  	8,000	  	288,000	  	8,000
	 QFN2.1X1.6/QFN1.8X1.4
	  	15	  	3,000	  	45,000	  	3,000
	 DFN1.0X0.6
	  	3	  	3,000	  	96,000	  	3,000
	 DFN4X3
	  	10	  	3,000	  	30,000	  	3,000
	 QFN4X4/QFN5X5
	  	10	  	3,000	  	30,000	  	3,000
	 DFN4X4
	  	10	  	3,000	  	30,000	  	3,000
	 TO-251A
	  	NA	  	70	  	14,000	  	3,500
	 QFN6X6
	  	10	  	3,000	  	30,000	  	3,000
	 DFN2X4
	  	10	  	5,000	  	50,000	  	5,000
	 DFN3X3/QFN3X3
	  	10	  	5,000	  	50,000	  	5,000
	 DFN2X3
	  	15	  	3,000	  	45,000	  	3,000

  

 -1- 

 EXHIBIT B 

HOUSE ACCOUNTS 

None 
  

 -2- 

 EXHIBIT C 

QUALITY REQUIREMENTS 

A. Storage environment control 

1. The temperature of warehouse shall be maintained less than thirty degree centigrade (30C) and the relative humidity of warehouse
should be maintained between thirty to seventy percent (30% - 70%). 
 2. Proper monitor instrument with the capability of
continuous recording of temperature and relative humidity (e.g. Hygro-thermometer) shall be installed to ensure the storage environment is under control. 

3. The temperature and relative humidity records shall be retained for at least 3 years. 

B. Receiving, storing, packing and shipping 

The Distributor shall implement appropriate receiving, storing, packing and shipping procedures to prevent mechanical or electrical damage
to the Product or degradation of the Product. 
 C. Inventory control 

1. The Distributor shall implement and maintain an inventory control system which provides segregation of Product by part number and
grade, if applicable. 
 2. The Distributor shall deliver the Product to Customer based upon “first in, first-out”
inventory method (“FIFO”, the oldest date code first). The Product listed below is exempted from FIFO requirement: 1) Product of date code exceeding one year, if the Customer clearly requires deliver Product with date code within one year;
and 2) Product with certain date code put on-hold by AOS. The Distributor shall use color label, auto system or other effective system to control the FIFO. 

3. The Distributor shall establish an effective system to identify and segregate nonconforming Product from conforming Product. The
Distributor shall not deliver nonconforming Product to Customer. 
 4. The Product shall be stored in a dry clean inert
atmosphere (e.g., nitrogen) or a vacuum pack. 
 D. Product return 

Distributor shall follow requirements listed below when returning Product to AOS: 

1. Product shall be returned in its original reels, tubes, magazines, carriers or other ESD protective containers enclosed in an
electrostatic field shielding (conductive) barrier to prevent mechanical or electrical (ESD) damage. Original AOS packaging materials and containers should be used if practicable. AOS reserves the right to refuse any return not properly packaged in
ESD protective containers; 
  

 -3- 

 2. Returned Product shall be clearly identified and shall not be altered or damaged during
handling (e.g., leads bent or cut, added markings, or broken packages); 
 3. Quality related returns shall be clearly
identified, marked with return reason, and packaged separately from other returns. Product rejected by Customer shall be returned together with Customer’s rejection paperwork; 

4. Distributor shall perform and complete Product sorting (including repeated sorting for complex issues) within five working days when
requested by AOS; and 
 5. Distributor shall provide AOS a detailed packing list for returned Product, which shall include
carton number, part number, lot number, date code and RMA number. The packing list shall fully match the returned Product. 

E. Customer returns/Product Recall 

1. Product returned to Distributor from Customer shall be inspected by Distributor upon receiving. If any damage, alteration, mishandling
or improper packaging discovered, the Distributor shall contact the Customer and resolve the problem before return the Product to AOS. AOS shall not be responsible for any damage or quality issue caused by such problems. 

2. Product recalled by AOS shall be processed in accordance with AOS’ recall notice. 

F. Product traceability 

The Distributor shall implement and maintain an inventory traceability system that: 

1. Records and traces quantity and lot number of any Product received and distributed; 

2. Has the capability of identifying the Product shipping date, location and/or the Customer where each lot shipped to within 24 hours
when requested by AOS; 
 3. Records the information stated above from receiving the Product from AOS through delivering the
Product to Customer; and 
 4. Additional label pasted by Distributor shall not cover AOS original labels and markings.

 G. Static handling procedure 

In the event that the reels or tubes need to be handled out of their original packing, the handling should be done at ESD protected
workstation in compliance with the latest revision of JESD625 “Requirements for Handling Electrostatic-Discharge-Sensitive (ESDS) Devices” (under section “Facilities for ESD protected areas and workstations”). 

 

 -4- 

 H. Audit 

AOS or its representatives may audit the Distributor’s facility to verify Distributor’s conformance to the requirements stated
above. The Distributor shall provide necessary information, facilities and equipments to facilitate tests and inspections to be performed during the audit. 
  

 -5-Supplement to Non-Exclusive Distributor Agreement - Promate Electronic Co., Ltd.

 Exhibit 4.20 

NOTE: Portions of this Exhibit are the subject of a Confidential Treatment Request by the Registrant to the Securities and Exchange Commission (the
“Commission”). Such portions have been redacted and are marked with a “[***]” in the place of the redacted language. The redacted information has been filed separately with the Commission. 

 

 

 SUPPLEMENT TO DISTRIBUTION AGREEMENT 

This is a SUPPLEMENT to the NON-EXCLUSIVE DISTRIBUTOR AGREEMENT dated July 27, 2010 (“the Agreement”) between
ALPHA & OMEGA SEMICONDUCTOR (HONG KONG) LIMITED (the “AOS” or “Company”) and PROMATE ELECTRONIC CO., LTD. (the “Distributor”). All expressions not defined here shall have the same meaning as they
have in the Agreement. Except to the extent modified by this Supplement, all provisions of the Agreement shall remain in effect. In the event of any conflict or inconsistency between the terms and conditions of this SUPPLEMENT and the Agreement, the
terms of this SUPPLEMENT shall prevail. The parties agree that the follows supplement to the Agreement: 
 Ship & Debit Program:

  

	1)	All orders shall be placed according to the current applicable price book until another version of AOS price book is released. 

 

	2)	Key Account Ship & Debit – Key Accounts refer to those end-customers designated and approved by the Company. The profit margin by Key Account is
pre-approved on the Key Account Rebate Form. Ship-Debit Note will be submitted by the Distributor and AOS will provide a SDN #. “Ship-Debit Note” MUST BE APPROVED BY AOS IN ADVANCE AND BEFORE ANY SHIPMENT. CREDIT NOTE WILL BE ISSUED BASED
ON SDN #. 

  

	3)	Non-Key Account – AOS will process the Non-Key Account claim on a case by case basis. A “Ship-Debit Note” will be submitted by the Distributor and AOS
will provide a SDN #. “Ship-Debit Note” MUST BE APPROVED BY AOS IN ADVANCE AND BEFORE ANY SHIPMENT. CREDIT NOTE WILL BE ISSUED BASED ON SDN #. 

  

	4)	Ship & Debit rebate shall be claimed on a monthly basis. 

  

	5)	Ship & Debit claim must be submitted after the completion of POS reconciliation by the Distributor. No claim will be accepted before the POS reconciliation is
completed by the Distributor and reviewed by AOS. 

  

	6)	Credit note will be issued within 10 working days after COMPLETE and ACCURATE claim documents are received by the Company from the Distributor (documents include, but
not limited to, POS data and the related supporting documents such as end-customer PO, invoice, and packing list). 

 Stock
Rotation Program: 
  

	1)	Stock Rotation is granted on a three-month period basis, where the third month of three-month period is the month prior to quarter-end month (e.g. March, April and
May). Stock Rotation claim must be filed within one month after the three-month period. 

  

	2)	Stock Rotation dollar amount is limited up to [***] guarantee and [***] AOS discretionary of net billings for the current three-month period. 

 

	3)	The look back period is the six months from the last day of the current three-month period (e.g. the look back period for stock rotation for the three-month period
ended May 31, 2010 is from December 1, 2009 to May 31, 2010). 

  

	4)	The Distributor can elect to rotate any of its inventories with ship-in date in the look back period. 

 
 ***CONFIDENTIAL PORTIONS OMITTED AND
FILED SEPARATELY WITH THE COMMISSION*** 

 

 

  

	5)	Stock Rotation will only be granted when a NONCANCELLABLE REPLACEMENT ORDER with equal or higher dollar amount is placed with AOS at the same time of the Stock
Rotation. 

  

									
	 ALPHA & OMEGA SEMICONDUCTOR 

(HONG KONG) LIMITED 
	 		 	PROMATE ELECTRONIC CO., LTD. 
					
	Signature:	 	 /s/ Phil Lee
	 		 	Signature:	 	 /s/ C.L. Hsieh

					
	Title:	 	 General Manager
	 		 	Title:	 	 Vice President

					
	Date:	 	 July 27, 2010
	 		 	Date:	 	 July 27, 2010

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