Exhibit 10.2(a)


  


Maximum Amount Guaranty Contract


 


(Apply to lines of credit)


 


Reference: Xing Yin Shen Longgang credit (guarantee)
zi (2014) No. 0504A


 


Creditor: Industrial Bank Co., Ltd. , Shenzhen
Longgang Branch


 


Address: parkland, longxiang road, longgang
town,shenzhen


 


Legal Representative / CEO: Jinkui Li


 


Contact: Jinlong Huang


 


Address:





	Postal Code:	Fax :
	Tel: 0755-33837817	Fax:


 


Guarantor: Dangyu Pan


 


Address: Building A1, 68 Xinxia Street, Pinghu,
Longgang, Shenzhen, Guangdong, China


 


Legal Representative / CEO: Dangyu Pan


 


Contact:


 


Address: 


	Postal Code:	Fax :
	Tel: 0755-89686939	Fax:


 


Contract Location: Industrial Bank Building,
Industrial Bank Co., Ltd. Shenzhen Branch


 




    	 



    	 



    

 


Important notes:


 


For protecting your rights and interests, please
read, check and confirm following items carefully before signing:


 


1. You have the right to
sign this contract. Or you have been given sufficient authority legally.


 


2. You have read and understood
this contract carefully and sufficiently, and have paid attention on assuming, exempting or limiting responsibilities of Industrial
Bank Co., Ltd., and the content with bold font.


 


3. Your company and you
have understood the meaning of this contract and relevant legal consequence, and agree to accept these provisions.


 


4. The contract provided
by Industrial Bank Co., Ltd. is a model contract. There is space for modifying, supplement and deleting.


 


5. If you have further
questions to this contract, please consult Industrial Bank Co., Ltd.


 


The guarantor is voluntary
as a financier ("creditor") to provide security for the line of credit of the applicant Springpower Technology (Shenzhen)
Co., Ltd. (or "debtor"). In order to clarify the rights and duties, abide by credit, the contracting parties signed this
contract in accordance with relevant laws and regulations to comply with.


 




    	 



    	 



    

 


Article 1 definition and interpretation


 


In addition to agreed in writing by both parties,
then:


 


1. The master contract
(as defined below) agreed definitions and interpretations applicable to this contract.


 


2. The "claims"
or called the principal debt, means the debt approval and provided by the creditor, including loans, lending, trade finance (including
but not limited to issuing letters of credit, trust receipts, packing loans, export financing, export collection bills and import
bills, etc.), bankers' acceptances, discounted bills , bills buyback, guarantees (including the Independent guarantees, see demand
guarantees and standby letters of credit, etc.) and other financing business (including principal, interest, penalty interest,
compound interest, liquidated damages, damages, cost of achieving the claim).


 


Under this contract, the
claim of the financier and the debt of the applicant mean the same content.


 


3. The "principal"
refers to the principal debt made by the business transacted by the financier, including but not limited to the principal loans,
trade finance capital, bankers' acceptances fare, bill discounting, money advanced for credit of letter, the principal part of
guaranteed by the creditor for the debtor.


 




    	 



    	 



    

 


4. The "guaranteed maximum principal"
means the amount agreed by both parties in order to clarify the scope of the claims guaranteed by the covenant. Regardless of times
and sum of the debt, the guarantor takes joint liability for all debt under the guaranteed maximum principal.


 


5. The "validity of
guarantee" refers to a continuous uninterrupted period agreed by both parties in order to clarify the scope of the claims
by the covenant. The debt happened during the period, whether the settlement deadline is over that period or not, the guarantor
takes joint liability for all debt under the guaranteed maximum principal.


 


6. "The cost of the
claim for the creditor" refers to the necessary fees of achieving the credit, including take litigation, arbitration and other
ways to pay litigation (arbitration) fees, legal fees, travel expenses, execution fees, security fees, and other expenses.


 


7. "Master Contract"
means credit contract (that is, "General Agreement") and all sub-contract signed by the financier and the applicant.


 


"Sub-contract" means based on the
basic or special contract, the contract signed by both parties after getting approval of the creditor, include the content of each
sum, the due date and other rights and obligations. The sub-contract is an integral part of the basic or special contract, with
the same legal effect. The forms of contract can be different according to business needs, as the application of L/C, bills or
other manner considered fit by the creditor. If the master contract and sub-contract has different part, the sub-contract will
be effective.


 




    	 



    	 



    

 


8. This "working day"
refers to the bank business day, If a withdrawal or repayment date is not a Business Day, delay to the next business day.


 


Article 2 the main credit contract of guarantee


 


The master contract of
guarantee is Basic Credit Line Contract (No. XingYin ShenLonggang credit zi (2014) No. 0504), and its sub-contracts. The
sum of credit is RMB forty million only, credit period is from Oct 23th 2014 to Oct 23th 2015.


 


The guarantor will be borne
joint liability for all debts under the master contract.


 


Article 3 Maximum guarantee principal


 


1. Under this contract,
maximum guarantee principal is RMB (in word) FORTY MILLION YUAN ONLY.


 


2. Under the maximum guarantee
principal, the guarantor is borne joint liability for all debt balance (including principal, interest, penalty, compound interest,
liquidated damages, damages, realization of claims).


 


Article 4 validity of guarantee


 


1. Valid period is from
Oct 23th 2014 to Oct 23th 2015.


 




    	 



    	 



    

 


2. The loan under the contract
can be used only when during the period of validity, but the guarantor is borne joint liability for each debt whether the debt
is in or over the validity of the guarantee contract.


 


Article 5 guarantee responsibility


 


1. The guarantor is borne
joint liability under this contract. For whatever reason, if the applicant fails to fulfill due debts under the master contract
(including but not limited to early recovery of debts because of the default of the applicant or the guarantor's request), the
guarantor shall perform the repayment obligation on behalf of the debtor.


 


2. If there are several
guarantors under this contract, all guarantors shall jointly bear joint responsibility.


 


3. Main debts expire, the
debtor fails to repay the debt and interest, the guarantor shall perform the repayment obligation.


 


4. Furthering the period
of the main debt, if the creditor recovers the debt in advance according to the master contract, the guarantor shall bear joint
responsibility for this and other debts under the guarantee contract.


 


Article 6 scope of guarantee


 


1. The financial claims
under this contract ("the secured claims") refers to all debts provided by the creditor to the debtor, including but
not limited to the principal debt, interest (including default interest, compound interest), breach of contract , damages , expenses
of claims.


 




    	 



    	 



    

 


2. On the due date, if
the applicant refused to repay the loan, which lead to the debt rights also in the range of the guarantee.


 


3. The principal , interest and other costs,
the time of performance, usage, rights and obligations of the parties as well as any other relevant matters under the contract
shall prevail by relevant agreements, contracts, application, notice , various certificates and other records, all kinds of certificates
and other relevant legal documents issued or signed without guarantor’s confirmation.


 


4. In order to avoid ambiguity,
all fees of prepare, improve, perform or enforce the contract (including, but not limited to attorney’s fees, litigation
or arbitration costs etc.) constitute a part of the secured debt.


 


Article 7 warranty period


 


The warranty period under
the contract:


 


1. The warranty period
under the contract is calculated according to each financing applied by the applicant. For each financing, the warranty period
is ended after two years of the expiration.


 


2. If there are several
financings in one master contract, the warranty period of each financing is ended after two years of the expiration.


 




    	 



    	 



    

 


3. If the principal debt is repayable in installments,
there are several financings in one master contract, each warranty period is calculated in installments, and the guarantor shall
bear responsibility for two years from the date of expiry.


 


4. If any extension agreement
is signed by financier and debtor without agreed by the guarantor, the guarantor will still bear responsibility for all financing
under the contract within two years from the date of extension expiry.


 


5. If the financier decides
to recover the debts in advance, the warranty period is two years since the date of expiry noticed by the financier.


 


6. The warranty period
of bankers' acceptances, letters of credit and letters of guarantee is two years from the date of advance payments. If advance
for several times, warranty period is calculated from each advance payment.


 


7. The warranty period
of commercial bills is two years from the date of discount maturity.


 


Article 8 on demand


 


As long as financiers submitted
notification of debt collection to the guarantor with the contract number and the amount of debt, the guarantor shall immediately
perform the repayment and give up all reasons of defense.


 




    	 



    	 



    

 


Article 9 declaration and commitment of
guarantor 


 


The guarantor voluntarily
made the following statement and commitment, and liable for its truthfulness:


 


1. The guarantor is established
under the laws and a validly existing legal company, with full civil capacity. The guarantor follows the creditor's request to
provide relevant evidence, permits, certificates and other documents required by the creditor.


 


2. The guarantor has sufficient
capacity to fulfill all the obligations and responsibility under the contract, not because of any instruction, financial conditions
change, or any agreement with any party to reduce or waive their commitment to settle the obligation.


 


3. The guarantor has sufficient
power, authority and legal right to sign this contract, the guarantor has obtained and fulfilled all necessary approvals and authorizations
of its internal or other relevant procedures to make the contract execution and performance, and has achieved and fulfilled any
government department or other authority's approval, registration, authorization, consent, license or other relevant procedures
for this contract, and signed this contract with all the necessary approvals, registrations, consents, licenses , authorizations
and other related procedures remain fully valid.


 




    	 



    	 



    

 


4. The guarantor signed the contract in full
compliance with the relevant Articles of the guarantor, the internal decisions, shareholders and board resolution. The contract
does not conflict with any charter, internal decisions, shareholders resolutions, board resolution and the guarantor's policies.


 


5. The execution and performance
of this contract is based on the guarantor's true intention. Loan facility is compliance with legal and regulatory requirements,
execution and performance of this contract does not violate any binding law, regulation, ordinance or the contract. This contract
is valid and enforceable, as a result of the guarantor’s defects in the execution and performance of this contract to result
in the contract is invalid, the guarantor will immediately and unconditionally make compensation for all losses to the creditor.


 


6. Under this contract,
all the documents, financial statements and other information provided by the guarantor is true, complete, accurate and effective,
and continue to fulfill the creditor’s request of the financial indicators.


 


7. Such as a change in
ownership structure or key management personnel or other significant events and significant transactions, the guarantor shall require
the prior written consent of the financer.


 




    	 



    	 



    

 


8. If the guarantor fails to fulfill the contract
obligations, the guarantor hereby authorizes the creditor recover the funds from all branches accounts of the guarantor without
going through the judicial process.


 


9. When the guarantor has
fulfilled the guarantee responsibilities, the guarantor has the right to recover the money from the applicant without prejudice
the repayment in the future. However, if the applicant has the claim of the guarantor and the requirement of repayment from the
financier at the same time, the guarantor agreed the applicant to repay the debt of the financier first.


 


10. If the applicant and
the guarantor have or will sign a counter- guarantee contract in respect of the obligations under the contract, the counter-guarantee
contract shall not prejudice any rights of the financier in law or in fact under the contract.


 


11. Before pay off the
debts, regardless of any reason lead to reduce the guarantee ability of guarantor, the financier has the right to require the guarantor
to provide a new full and effective guarantee.


 


12. When he applicant fails
to fulfill obligations, regardless of the financier has other guarantee right of the debts, (including, but not limited to warranties,
mortgage, pledge, guarantees, standby letters of credit and any other form of guarantee), the guarantor shall bear full responsibility
to ensure the security and waive all defenses on law and property law.


 




    	 



    	 



    

 


13. There was no any litigation, arbitration
or administrative proceedings for the guarantor’s outstanding or known to occur on the guarantor, and there was no events
of liquidation or other similar proceedings whether it comes forward by the guarantor or by a third party.


 


14. If the creditor is
forced into disputes between the guarantor and any other party because of fulfilling the obligations under the contract, the guarantor
should pay litigation or arbitration costs, legal costs and other expenses.


 


15. During warranty period,
the guarantor undertakes not to transfer, conceal property, or give up, passive exercise claims in any way.


 


Article 10 Obligations of disclosing important
transactions and events


 


1.Guarantor should inform
financer of significant transactions and events of guarantor in written timely.


 


2. During valid period of this contract, stock
transfer, reorganization, merger, discrete, shareholding reform, joint venture, cooperation, joint operation, contract, lease,
business scope, change of registered capital, major asset transfer, contingent liability, or anything which may affect guarantor’s
ability of assuming responsibility should be notified to financer in writing 30 days in advance.


 




    	 



    	 



    

 


3. Termination of business, going out of business,
bankruptcy, dissolution, cancellation of business license, deterioration of financial situation or involving in major business
dispute, or anything may affect guarantor’s ability to assume responsibility should be noticed to financer in 7 days by written
since the date above things take place.


 


4. When guarantor involves
in major litigation or arbitration with any third party, or other significant thing which may affect guarantor’s ability
to assume responsibility, financer should be notified by written in 7 days since the date guarantor receives relevant notice.


 


5. The guarantor promises
that it will not use its legal dispute with third party to damage financer’s right.


 


Article 11 events of default and breach
of contract


 


1. Since this contract
comes into force, the financer and the guarantor shall perform the obligations as agreed in the contract, any one party fails to
perform or not completely fulfill the obligation of this contract, shall bear the corresponding liability for breach of contract.


 


2. One of the following
circumstances occurs, the financier has the right to require the guarantor immediately to fulfill the repayment obligations:


 


(1) Any information provided
by guarantor and the statements and commitments stated in Article 9 of this contract are false, inaccurate, incomplete and misunderstood.


 




    	 



    	 



    

 


(2) Deterioration of guarantor’s
credit status and obvious weakening of repayment ability (including contingent liability);


 


(3) the guarantor violates
of the foregoing provisions of Article 10, not disclose the significant transactions and events;


 


(4) Stopping doing business,
going out of business, being announced bankruptcy, dissolution, cancellation of business license, involving in major business dispute,
and deterioration of finance condition and so on;


 


(5) Other thing which may
damage financer’s right.


 


3. If the guarantor defaults,
financer has the right to take one or more following measures:


 


(1) require the guarantor
to remedy;


 


(2) require the guarantor
to provide a new full and effective guarantee;


 


(3) require the guarantor
to perform guarantee obligation in advance;


 


(4) require the guarantor
to repay all direct or indirect losses for breach of contract.


 


The guarantor shall make
the implementation of the above measures and waive all defenses.


 


Article 12 the independence of the guarantor’s
obligations


 


1. The guarantor's obligations
under this contract have independence with no effect of the relationship between any party and the third party, except there are
stipulates.


 




    	 



    	 



    

 


2. The guarantee contract
has independence, regardless of any conditions; the guarantee contract is effective even if the master contract is not effective.
If the master contract is confirmed as invalid, then the guarantor still bear the joint liability for the debtor’s debts.


 


3. If the applicant violates the master contract
(including but not limited to the applicant fails to use the loan under the sub-contract) , shall not affect the liability of guarantee,
the guarantor cannot require to reduce or waive the responsibility of guarantee.


 


4. The main creditor under
the contract expires or the guarantor fails to perform under this contract, the financier has the right to directly deduct the
funds from any account of the guarantor.


 


5. As under the master
contract , there are other guarantees ( including but not limited to guarantee , mortgage , pledge, standby and any other form
of security ) , the guarantor agrees that one can give up part of security interest or security interest subordinated ( including
the collateral is based on the collateral provided by the debtor) , financier and any mortgagor / pledgor (including the mortgagor
/ pledgor artificially is the debtor himself) can be varied by agreement and subordinated security interest, the amount of the
secured creditor and other content, even if financiers made the above act, the guarantor is still voluntary to bear all responsibility
of this contract.


 




    	 



    	 



    

 


6. The guarantor agrees and acknowledges: the
financer and the applicant agree to alter the master contract are deemed to have the prior consent of the guarantor, the guarantor
cannot reduce the responsibility because of this.


 


7. Before the maximum guarantee
claims determined, the financer has the right to transfer part or all guarantee rights without the prior consent of the guarantor.


 


Article 13 the continuity of obligation


 


1. All the guarantor's
obligations under this contract have continuity, for his heir apparent, agent, receiver, the assignee and the main company after
merger, reorganization, change the name is completely and equally binding.


 


2. The guarantor hereby
acknowledges, financiers can continuously and cyclically to provide financing to the applicant under the contract, the guarantor
has joint for liability of all claims, regardless of the times and sum of each financing.


 


3. The contract is a continuing
guarantee, the guarantor shall bear responsibility of guarantee until the debts is paid off.


 


4. All or part of the release
or discharge of the secured creditor based on any payments, guarantees or other disposition which have been declared invalid or
must be repaid, the guarantor’s responsibility will be remain in force.


 




    	 



    	 



    

 


Article 14 priority subrogation arrangements


 


The guarantor states that,
once the guarantor cannot assume security responsibility, and the guarantor itself has not sufficient property to be repaid, the
financier has priority right of any claims against third parties, accounts receivable and other property interests. The guarantor
will voluntarily relinquish the defenses against the financier under Article 28 of "security law".


 


Article 15 offsetting arrangements


 


The right of the financier
under the contract cannot offsetting by the guarantor’s or any other party’s right of offsetting.


 


Article 16 Applicable Law, Jurisdiction
and Dispute Resolution


 


1. Effective performance,
termination, interpretation and dispute settlement etc. of this contract is applicable for china laws.


 


2. For any dispute about this contract, guarantors
and creditors should resolve through friendly consultations; If friendly negotiation fails, the both parties agree to solve by
the following section (2) :


 




    	 



    	 



    

 


(2) To Shenzhen Arbitration Commission for arbitration, to resolve
the dispute by the rules of the Arbitration Commission, that the arbitration award is final and binding on both parties. The site
selection is in Shenzhen.


 


3. at the disputed period,
the part of not involved has still to be carried out.


 


Article 17 Files, Communications and Notifications


 


1. Any documents, communication
and notification under this contract shall be sent to the other party by the way of address, phone number or other contact methods
listed in the cover of this contract.


 


2. If any above contact
method of any party changed, one should notice the other party by any quick way immediately. If one does not notice, one should
be borne for the documents, communication and notification sent through old address, phone number or other contact methods listed
in the cover of this contract.


 


3. Any documents, communications
and notifications sent by the way of the above address, shall be deemed to arrive on the following dates:


 


(1) by post (including
speed post, ordinary letter, registered mail), it will be deemed to arrive on the day after five working day;


 


(2) by facsimile or other
electronic means of communication, it will be deemed to arrive on day;


 




    	 



    	 



    

 


(3) by personal delivery,
the date of recipient is deemed to be arriving date.


 


Notifications by the way
of website, online banking, telephone banking or business outlets announcement should be deemed to arrive on day. The creditor
does not need to borne any responsibility for any transmission errors, omissions, or delays of mail, fax, telephone or any other
communication system.


 


4. The two sides agreed
that the seal of the office seal, financial seal, contract seal, receive seal and credit seal is the effective seal for the documents,
communications and notifications. All staves of the debtor have right to receive files, communications and notifications.


 


Article 18 the contract effectiveness and
other matters


 


1. The contract shall take
effect from the date of signature or stamp of both parties..


 


2. Any modification and
supplement to this contract is effective, through the guarantor and financiers made mutual consent in writing by the legal representative
/ responsible person or his authorized representative signature and official seal.


 


3. After the effective
of this contract, the master contract signed by the financier and the applicant does not need to be confirmed by the guarantor.


 




    	 



    	 



    

 


4. During the effective
period of this contract, the creditor gives to the debtor and the guarantor any tolerance, forgiveness, or delay to use the rights
and interests, shall not damage, impact or limit the creditor to share the rights and interests in accordance with relevant laws
and regulations and this contract, or to be deemed giving up the rights and interests, also do not affect the guarantor to borne
any obligation under this contract.


 


5. The creditor shall have the right to authorize
or entrust other branch of industrial bank to perform rights and obligations under this contract (including but not limited to
authorized or entrusted bank branches of other related contracts, etc.) according to the debtor’s operation and management,
or the loan under this contract as other branch’s to undertake, without prior consent of the guarantor, and the guarantor
still bear the responsibility of guarantee.


 


6. The attachment is an
integral part of this contract, and the attachment of this contract is equally valid.


 


7. During the period of
the line of credit, if the series of contracts, agreements and other legal documents are not explicitly for the contract of guarantee,
that shall be deemed as a guarantee by the guarantee contract.


 


8. This contract is triplet,
the creditor holds two copies, the guarantor holds one copy, with equal legal effect.


 




    	 



    	 



    

 


Article 19 the notarization and voluntarily
to accept compulsory execution


 


1. The contract should
be in the provisions of the state notary office for notarization if any party request notarization.


 


2. The notarized contract
have the enforcement effect, if the debtor fails to perform the debt or the creditor shall realize creditor's rights according
to laws and regulations and this contract, the creditor shall have the right to directly apply the people's court with jurisdiction
for enforcement.


 


Article 20 supplement:


 


The creditor (official seal): /s/ [COMPANY
SEAL]


 


the legal representative (signature):


 


The guarantor (official seal): /s/ [COMPANY
SEAL]


 


the legal representative (signature):