Exhibit 10.5(a)







Maximum Amount Guaranty Contract


(Applicable if guarantor is natural person)


Reference No. : 2016zhenzhongyinbubaoezi
No.00444B


 


Guarantor: Dangyu Pan


Type of certification: identification card


Certification number: 430104196803184316


Address: Building A2, Luoshan Industrial
Zone, Longgang District, Shenzhen


Postal code: 518000


Telephone: 0755-89686236 ; Facsimile: 0755-89686298


 


Creditor: Bank of China, Buji Sub-branch.


Legal Representative: DENG ZHENGBO


Address: 108, Buji Road, Buji Town, Longgang
District, Shenzhen; Postal code: 518000


Telephone: 0755-22337156 ; Facsimile: 0755-28772290


 


To guarantee the performing of the principle
contract stated in Clause 1, both parties agree the following:


 


Clause 1 Principle Contract


1.       The
principle contract is “Comprehensive credit contract (2016zhenzhongyinbuexiezi No 0000444)” and its supplements signed
between Creditor and Debtor, Shenzhen Highpower Technology Co., Ltd


 


Clause 2 Principle Creditor’s rights
and the period


Unless otherwise agreed, the creditor’s
rights under the following contracts and the creditor’s rights occurred before the engagement of this contract constitutes
the principle creditor’s rights of this contract.


The creditor’s right occurred under
comprehensive contract starting from the date of effectiveness, and ends upon the expiration of all the specific creditor’s
rights.


 


Clause 3 The maximum amount guaranteed


1. The maximum amount assumed guaranteed
is:


Currency: Renminbi


Amount (Capital letter): eighty million


Amount (in numbers): 80,000,000.00


 


2. The principle creditor’s rights
under the principle contract constitute the principle creditor’s rights under this contract, which includes: loan principle,
interest, compound interest, punitive interest, liquidated damage, the cost for realization of the creditor’s right (includes
but not limited to the announcement fee, delivery fees, appraisal fees, legal fees, travel expenses, assessment fees, auction fees,
the property preservation fee, compulsory execution fee and etc), as well as the Pledgee’s loss due to the breach of covenants.


 


The sum of the above terms constitutes
the maximum amount of guaranteed for this contract.


 


Clause 4 Types of guaranty


Joint responsibility guaranty.


 



     


     


    




Clause 5 The guarantee responsibilities


Under the circumstance that, the debtor
of principle contract failed to pay off the creditor’s rights when due (on due date or early termination date), the guaranty
is assumed to be responsible in accordance with this contract.


The due date in the previous sentence means
the repayment date agreed in the principle contract. The early termination date is the termination date request by creditor per
law or per agreements under the principle contracts.


Creditor’s rights on other guarantee
contracts or collateral contracts should not have an impact on the performing of this contract. Guarantor should assume responsibility
under this contract rather than plea with the execution in order.


 


Clause 6 The responsible period


The responsible period for this contract
is two years after the establishment of the creditor’s rights under Clause 2


During the period, Creditor is entitled
to the right to request the assumption of responsibility from Guarantor in full or in part on one or on all creditor rights.


 


Clause 7 The duration of action


During the period that the creditor’s
rights have not been paid off when due, Guarantor is assumed responsible under the joint responsibility guarantee. Creditor is
entitled to claim the rights within the responsible period defined in Clause 6, the duration of action started upon the request.


 


Clause 8 The relationship between this
contract and the principle contract


Upon the termination or early termination
of the principle contract, Guarantor assumes guarantee responsibility on occurred debt.


The change of principle contract will not
be informed to the Guarantor unless under the following circumstances, change of currency, interest rate, amount, period, or other
terms which might affect the increase of the amount of the principle creditor’s rights or extend the effective period of
the principle contract. Guarantor remains obligated to assume the guarantee responsibility to the changed principle contract.


Under the previous stated circumstance
which Guarantor‘s consent is required, Pledgor Guarantor is entitled to the right to reject to assume the guarantee responsibility
on the incremental portion.


Under the circumstances that, Creditor
provide the letter of credit, trade financing services to debtor under the principle contract, Guarantor won’t be notified
but assumed guarantee responsibility. It is the Creditor’s responsibility to registry for the incremental business contract.


Clause 9 Statements and Commitments


 


Guarantor’s statement:


a)Guarantor is a natural
person who possesses the capacity for civil rights and civil conducts in People’s Republic of China to perform this contract.
Party A can perform the civil conduct independently, no bad credit records such as debt overdue, overdue interest, malicious overdraft
on credit card, no criminal records, qualified to be a legal guarantor.


b)Guarantor has full
understanding about the terms and conditions set forth in the contract. It is Guarantor’s true will to provide guarantee
to debtor.


c)The establishment
of this contract will not constitute a breach of covenant of any other previous contract Guarantor engaged in.






     


     


    

 


d)All documents and
information provided by Guarantor to Creditor are true, complete, accurate and effective.


e)Guarantor is willing
to cooperate in the checking and inspection of its financial conditions performed by Creditor.


f)Guarantor did not
conceal any existing liability upon the signing of the contract


g)Inform the Creditor
in time for any issues might affect Guarantor’s performing capability, which including but not limited to losses of assets,
transfer, donation, assume responsibility on liabilities, involved in significant law suits or disputes.


h)If the Guarantor
is married, make sure the sponsor’s consent is obtained.


 


Clause 10 Authorization of access to personal
information


Guarantor authorizes the access of personal
information in the personal credit information database in the People’s Bank of China to Creditor under the following circumstances.


1. Reference check on the Guarantor’s
credit status.


2. Reference check on the Guarantor’s
guarantee status.


3. After-loan management on the personal
credit and guarantee status


4. Accept the credit line application of
which the Guarantor guaranteed or to be legal representative or one of the funders.


 


Clause 11 Breach of covenants


Any of the following situations would be
considered as breach of contract covenant:


1. Guarantor is in violation with the previous
terms of the contract.


2. The statements of the Guarantor is untrue
or in violation with its commitments


3. The occurrence of issues defined under
the point 7 of clause 9 which might affect the Guarantor’s financial position and performing capability.


4. In violation with other rights and obligations
agreed in this contract.


5. Guarantor breaches the covenants on
other credit line contracts with Party B or other affiliated institutions of Bank of China.


 


When any of the above mentioned situations
noticed, Creditor will perform the following in separate or all at the same time:


1) Request Guarantor
to rectify within a definite time.


2) Reduce, temporarily
pause or permanently terminate Guarantor’s Credit limit in part or in all


3) Temporarily pause
or permanently terminate in part or in all of Guarantor’s application on specific credit line under this contract.


4) Announce the immediate
expiration on all the credit lines granted under this contract and affiliated specific credit line contracts.


5) Terminate or release
this contract, terminate or release in part or in all of the affiliated specific credit line contracts as well as the other contracts
signed between Guarantor and Creditor


6) Request compensation
from Guarantor on the losses thereafter caused.


7) Assume the guarantee
responsibility on Guarantors.


8) Other necessary
procedures on Party B’s concern


 



     


     


    




Clause 12 Rights reserved


 


Either party might reserve part of or all
of the rights under this contract and the affiliated specific credit line contracts, this does not imply the party has surrendered
or remitted the unperformed rights and obligations.


Either party might sometimes tolerate,
extend or delay the execution of certain rights, this does not deem as the party has surrendered or remitted the rights.


 


Clause 13 Change, Modification, Termination
and Partial invalidity


 


Upon negotiation and agreement by both
parties, this contract can be changed and modified, the written record of the changes and modifications should form the inseparable
part of this contract.


Unless ruled by law or both parties formed
a separate agreement, the contract would not be terminated prior to all the rights and obligations defined are fulfilled.


Unless ruled by law or both parties formed
a separate agreement, the void of single terms under this contract should no invalid other contract under this contract.


 


Clause 14 Applicable Law and Resolution
for Dispute


 


1. This contract is entered into according
with the People’s Republic of China, and applicable to the law of the People’s Republic of China.


2. The resolution of dispute should be
appealed in Party B or other Bank of China subsidiaries defined in this contract or other affiliated contracts


 


Clause 15 Attachments


 


Sponsor’s consent.


 


Clause 16 Other terms and conditions


1.       Without
Creditor’s prior written approval, Guarantor is not allowed to transfer the rights and obligations under this contract to
3rd Parties.


2.       Guarantor
should give the consent that, Creditor might somehow authorize other affiliated institutions of Bank of China to perform the obligation.
The performing party is entitled to all the rights and obligations under this contract and the affiliated credit line contracts,
the performing party reserves the rights to appeal a resolution of dispute if necessary.


3.       The
contract has equivalent restrictions to the successors or inherits of both parties.


4.       Unless
otherwise agreed, the domicile addresses stated in this contract are for corresponding use; both parties should notify each other
in writing about any changes of its domicile addresses.


5.       The
title and name of business product is for business purposes, will not used for interpretation of the contract terms and the rights
and obligations.


 


Clause 17 Effectiveness of the contract


This contract is established and entered
into effective upon signing or sealing by the legal representatives (or person-in-charge) of Pledgor and Pledgee or their duly
authorized agents, together with sealing by the company chop.






     


     


    

 


The pledge is established upon the effectiveness
of this contract.


This contract will be printed and signed
in five copies, Guarantor and the debtor hold one copy each, Creditor holds three copies; each copy has the same legal effect


 


/s/ Dangyu Pan


Signature of Guarantor and Sponsor


 


/s/ [COMPANY SEAL]


Stamp of Creditor (if Pledgee is a corporation)


Signature of legal representative or authorized
representative


/s/ Deng Zhengbo


 


Consent letter


I (Name: Zhoutao Yin, Certificate Type:
Identification Card , ID Number: 430104196810294329) am the spouse of the guarantor DANG YU PAN under the maximum amount guarantee
contract (No. : 2016 zhenzhongyinbubaoezi No.00444B). I agree to undertake the responsibility of the maximum amount guarantee contract
by the couple's property.