Document:

Exhibit 10.2(a)

 

Maximum Amount Personal Joint Responsibility
Guarantee

NO. BZ162617000032

 

To: Bank of Jiangsu, Shenzhen Sub-branch

To ensure the performance of Creditor’s
right, the guarantor agrees to provide joint responsibility and promises as follows: “Maximum Amount Comprehensive Credit
Line Contract” signed by bank and debtor Springpower Technology (Shenzhen) Co., Ltd, and the contract number is “SX162617000498”

 

Article 1 The Guaranteed Debt

The guaranteed debt means all the debt under
the master contract.

 

The master contract includes the main contract
and other signed contract under the master contract.

 

Except the period determined or agreed separately
in accordance with the laws, the actual credit under the master contract consists of the primary credit of the contract in the
below period:      A     .

 

Article 2 Primary credit and period

A. From the effective date of “maximum
amount comprehensive credit line contract” in article one to the expiration date of facility period stipulated in this contract
and amendments or supplements.

 

B. From ___ year __ month ___ day __ to __
year __ month __ day under article one of this contract.

 

Article 3 Guarantee Covers

The principal and interest (including punitive
interest and compound interest) of all loans (credit) outstanding between debtor and Creditor according to the master contract,
the punitive sum that debtor should pay to Creditor; compensation and other expenses Creditor charges for realizing its creditor’s
rights (including but not limited legal fees, arbitration fees, property preservation fees, execution fees, valuation fees, auction
fees, attorneys’ fees, travelling fees, etc.).

 

Article 4 Guaranty Method

Guarantor voluntarily provides the joint liability
guarantee, when debtor does not perform its obligations related to the debt according to the master contract, no matter what other
guarantee Creditor has for ensuring the creditor’s rights under the master contract (including but not limited to guarantees,
mortgages, pledges, etc.), Creditor has the right to ask guarantor to take guarantee responsibilities within guarantee coverage.

 

Article 5 Maximum Amount of the Guaranty

The maximum amount which the guarantee assumed
hereunder is at most no more than RMB 15 million only. The maximum amount of guaranty hereon is the loan principal balance by total
amount (meaning the line of credit deducting the amount of cash deposit) of use of loans and facility actually under the master
contract signed between creditor and debtor and in the period as mentioned in the contract deducting amounts repaid, excluding
the proceeds of payable except the principal stipulated in article 3, such as interest expenses and penalties, etc., but the guarantee
shall still assume the joint liquidated liability.

 

The guarantor agrees that the debtor can recycle
the loans under master contract, and agrees that the debtor can adjust the credit line of all kinds of loans within the line of
credit hereunder, and the guarantor shall assume the joint guarantee liability.

  

    	 

     

    

 

Article 6 Warranty Period

The warranty period of this contract is from
the effective date of this contract to 2 years after the maturity date of the debts (including deferred loans) under master contract.

 

Article 7 Changes of Master Contract

The warranty obligations of this contract
will not be affected by any changes (including but not limited to modifying, supplying and deleting etc.) of the master contract
agreed by creditor and debtor except the amount of the loan. If creditor and debtor agree with delaying to repay the debt, this
contract is still effective.

 

Creditor may transfer its creditor’s
right to a third party legally, and guarantor shall assume the same warranty responsibilities as before.

 

Article 8 Independence of this Guarantee

This guarantee is independent of the master
contract ,the effectiveness of this guarantee is not affected if the master contract is invalid completely or partly. If the master
contract is considered as invalid, guarantor assumes joint security responsibility to the debt resulting from debtor’s returned
property or pay for the damage. Guarantor promises to supervise debtor’s use the loan (credit), and if debtor changes the
purpose of the loan (credit), guarantor still assumes warranty responsibility.

 

Any tolerance, extension, privilege or delay
from creditor to guarantor for exercising of its rights under this contract does not affect, injure and limit the rights creditor
enjoys according to this contract and laws and regulations, and cannot be considered as the abdication of the related right according
this contract, and will not affect the obligations of guarantor under this contract.

 

The efficacy of this guarantee will not be
affected by any contract, agreement, and guarantee, and tacit agreement, or dispute.

 

Warranty obligations of guarantor (including
the inheritor, assignee and conservator of guarantor) are continuous, and have no effect on any change of guarantor and debtor
(including but not limited in division, merger, reorganization, transactions of property right and operational right). If debtor’s
subject qualification ceases to exist before debtor repays all debt to creditor, or creditor announces its subject qualification
ceases to exist within 6 months since debtor repaid all debt result in the foregoing repayment become invalid, the warranty obligations
under this contract are still effective.

 

Article 9 Guaranty

Guarantor agrees to assume warranty responsibility
by all his property (including family possessions; since the date of signing this guarantee, guarantor will not allowed to dispose
the above property without Creditor’s consent, if Creditor thinks it is necessary that the above property can be guaranteed,
mortgaged or pledged, guarantor promise to assist to process above procedures.

 

During the warranty period, guarantor promises
that he will not provide guarantee which exceeds his warranty ability to a third party. If the above property is insufficient to
afford the guarantee responsibility, guarantor promises to assume repayment responsibility for the insufficient part.

 

If Creditor feels necessary, guarantor agrees
to provide the list of all his assets, and evaluate the assets on the list, guarantor will pay any valuation fee. Guarantor promises
that he enjoys ownership and the right of disposal of all assets on the list.

  

    	 

     

    

 

Article 10 Advanced Guarantee Responsibilities

During the warranty period, when any default
under master contract or other situations which is considered as can affect the realization of creditor’s right by Creditor
happen, Creditor can announce the debt immediately due and payable, and has the right to ask the guarantor to assume security responsibility
on the date announced by Creditor, guarantor agrees to assume the security responsibility as Creditor requested.

 

Article 11 Receiving Payables

Creditor has the right to take payment from
guarantor’s account in bank of Jiangsu for all payables of guarantor in the range of warranty coverage. If the payment is
foreign currency, it will be calculated according to the rate Creditor announced on the day.

 

Article 12 Other Items

1. During warranty period, Creditor has the
right to supervise the funds and financial condition of guarantor, and guarantor should provide true information.

 

2. Guarantor authorizes the Creditor to claim
for creditor’s due right, the money collected should be repaid Creditor to the Creditor as priority.

 

3. If the loan, which is under the master
contract or a specific credit business of the master contract, is not paid as agreed, or is changed the way of payment, guarantor
shall still assume security responsibility.

 

Article 13 Settlement of Dispute

When there is any dispute in performing the
contract, both parties should settle the dispute through negotiations at first, if negotiations cannot reach an agreement, both
parties can apply to the local people’s court of Creditor.

 

During the litigation or arbitration period,
the items of this contract which are not involved in the dispute still should be performed.

 

Article 14 Becoming Effective

This guarantee comes into force as of being
signed by guarantor

 

Article 15 Statements

1. Guarantor knows the business scope and
limits of authority of Creditor.

 

2. The guarantor has read the contract comprehensively
and carefully and fully understands the master contract entered into between creditor and debtor, upon the request of guarantor,
the creditor has made the terms interpretation accordingly as for the master contract and the contract hereunder, and the guarantor
is fully aware of and understands all the terms of the master contract and the contract hereunder, and signed this contract with
willingly. The guarantor is fully aware of the legal consequences for the conclusion and performance of the master contract and
the contract hereunder may give rise to, and fully confirms the obligations related to this contract.

 

3. Guarantor has the right to sign this guarantee.

 

4. Guarantor should give the consent that,
Creditor might somehow authorize other affiliated institution of Jiangsu bank to perform the obligation. The performing party entitles
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.

 

5. It should be noticed to Creditor in writing
of any changes of guarantor’s abode, postal address, contact number etc. in 10 days after the changes happen. It will be
considered as if the information has been delivered if Creditor sends related notices and documents according to the primary address
on file if the guarantor does not provide such notice.

 

6. If a notary agency mandates enforceable
status to this contract, guarantor agrees to be enforced by the legislative body and gives up the right of defense.

 

	Guarantor (signature):	/s/ Dangyu PanExhibit 10.2(b)

 

Maximum Amount Guaranty Contract

Contract No.: BZ162617000031

 

Guarantor: HUIZHOU HIGHPOWER TECHNOLOGY CO.,
LTD.

Address: XINHU ,MAAN TOWN,HUICHENG District,
HUIZHOU 

 

Creditor: Bank of Jiangsu, Shenzhen Sub-branch.

Address: 4011, Shennan Road, Futian District,
Shenzhen.

 

In order to warranty the performance of debts
under item one of this contract, the guarantor provides the warranty to the creditor voluntarily, and the two parties entered into
this contract after equal negotiation.

 

Article 1: Master Contract

The master contract hereunder is    A     .

 

A. The creditor and the debtor Springpower
Technology (Shenzhen) Company Limited entered into this contract of maximum amount comprehensive credit line whose
number is SX 162617000498, and has or will enter into the separate facility business contract, as well as amendments
and supplements.

 

B. The creditor and the debtor      ,
from     year   month   day    to    year month   day
, entered into the contracts of loans, bank acceptance drafts, trade financing, letter of guarantee, funds business, and other
agreement, as well as amendments and supplements.

 

Article 2: Primary Credit and Period

Except the period determined or agreed separately
in accordance with the laws, the actual credit under the master contract consists of the primary credit of the contract in the
below period:      A     .

 

A. From the effective date of “maximum
amount comprehensive credit line contract” in article one to the expiration date of facility period stipulated in this contract
and amendments or supplements.

 

B. From ___ year __ month ___ day __ to __
year __ month __ day under article one of this contract.

 

Article 3: Guarantee Coverage

The scope of guaranty of creditor hereunder
covers all debts occurred under this contract by the debtor, including but not limited to principals, interest expenses, compounded
interests, penalties, processing fees, default expenses, damage compensation, legal fees, escrow fees, taxation expenses, arbitration
fees, travel fees, assessment fees, auction fees, property preservation fees, compulsory execution fees and other expenses for
realization of the creditor’s right.

 

    	 

     

    

 

Article 4: Maximum Amount of the Guaranty

The maximum amount which the guarantee assumed
hereunder is at most no more than RMB 15 million only. The maximum amount of guaranty hereon is loan principal balance
by total amount (means line of credit deducting the part of cash deposit) of use of loans and facility actually under the master
contract signed between creditor and debtor and in the period as mentioned in the contract deducting the part of repayment, excluding
the proceeds of payable except the principals stipulated in article 3, such as interest expenses and penalties, etc., but the guarantee
shall still assume the joint liquidated liability.

   

The guarantor agrees that the debtor can recycle
the loans under master contract, and agrees that the debtor can adjust the credit line of all kinds of loans within the line of
credit hereunder, and the guarantor shall assume the joint guarantee liability.

 

Article 5

The guarantor has read the contract comprehensively
and carefully and fully understands the master contract entered into between creditor and debtor, upon the request of guarantor,
the creditor has made the terms interpretation accordingly as for the master contract and the contract hereunder, and the guarantor
are fully aware of and understands the whole terms content of master contract and the contract hereunder, and signed this contract
with true willing. The guarantor is fully aware of the legal consequence for the conclusion and performance of the master contract
and the contract hereunder may give rise to, and fully confirms the obligations related to this contract.

 

Article 6

The guarantor shall assume the responsibilities
for all debts owed by the debtor to the creditor under the master contract, including the debts arising from the prepayment requested
by the creditor. After received the written notice sent by creditor, the guarantor shall perform the settlement responsibilities
according to the time, kinds of currency, amount, and method of settlement specified by the creditor, and commit to the creditor
that the creditor has the right to deduct all amount of guaranty from the guarantor’s account when the creditor deems appropriate,
if the deducted proceeds is foreign currency, the currency shall be calculated according to the bid price published by the creditor
at the deducted date.

 

Article 7

The guarantee obligation of the guarantor
(including the inheritor, assignee, and conservator of the guarantor) need continuity under this contract, shall not affected by
the change of the guarantor or the debtor (including but not limited to merger, split, recombination, conduct
title transaction or transactions of managerial authority by way of lease, contract, and so on). If the debtor’s subject
qualification ceases to exist before clear off the loans hereunder, or the debtor declares that its subject qualification cease
within six month from the date clear off all of loans leading to its foregoing repayment activity invalid, the guarantor’s
warranty obligations is still effective.

 

Article 8

The term of the guaranty hereunder is from
the date of effective to two years after expiration of the debts hereunder (including the maturity of extension period).

 

    	 

     

    

 

Article 9

The guaranty obligations under this contract
shall not subject to be affected by any change for the terms and conditions of master contract agreed by both creditor and debtor
(including but not limited to amendments, supplements, and cancellations). If the creditor and debtor agree to extension or delay
the performance of the obligations hereunder, the contract hereunder shall continue to be valid.

 

In the event of the creditor transfers its
credit right to others in the period of guaranty according to the law, the guarantor continues to assume the guaranty responsibility
within the scope of the guaranty.

 

Article 10

The guarantor makes the following commitment
to the creditor unconditionally and irrevocably: if the debtor fails to or delays to fulfill the obligations of master contract,
or confirm the invalidity of the master contract in certain reason, or due to the guarantor fails to or delays to perform any clause
hereunder leading to a loss to the creditor, all of above shall be a debt payable for the guarantor to the creditor.

 

Article 11

Whatever reasons leading to the master contract
invalid in law or part of terms invalid, the guarantor shall still assume the guaranty responsibility for the debtor’s repayment
liability in accordance with the terms listed hereunder. The guarantor pledge to monitor the debtor to use the loans (facility),
in the event of the debtor change the purpose of the loan, the guarantor shall still assume the guaranty responsibilities.

 

Any tolerance, grace or postpone the exercise
of any right preferential by the creditor to the guarantor under this contract, shall not affect, damage, or restrict the creditor’s
all rights in accordance with the contract hereunder, laws and regulations, and normative documents, shall not deem as give up
the rights and benefit under this contract, and shall not affect any obligations assumed by the guarantor under this contract.

 

Article 12

If there is any collateral security except
this guarantee under this contract, the guarantor is willing to perform the joint guaranty responsibility prior to collateral security
on all guaranty debts.

   

Article 13

The guarantor is an entity established in
accordance with the laws, is qualified to identify the contract hereunder and perform joint guaranty responsibility. In addition,
signing this contract has obtained empowerment thereof, and the process of performing the contract has been completed.

 

Article 14

The guarantor to sign and perform this contract
is its real intension, is true and effective and legal, shall not affected by any relationship of any party hereunder and others
or other any events.

 

Article 15

The debts hereunder has the equal position
with guarantor’s other debts, shall be in the same compensation sequence.

 

Article 16

If the guarantor enters into the counter guarantee
contract with the debtor upon this contract, this counter guarantee contract shall not damage the creditor’s any interests,
and when the guarantor’s compensation arising from the counter guarantee contract and the creditor’s claim are in the
same sequence, the creditor shall be compensated prior to the guarantor.

 

The guarantor shall not request the debtor
to set up a counter guarantee by way of property pledge as to the obligations assumed by the debtor hereunder.

 

    	 

     

    

 

Article 17

The guarantor’s responsibility shall
decrease gradually with the decrease of the debts hereunder.

 

Article 18

The guarantor shall provide the true, complete,
valid financial statement and other relevant materials and information as required by the creditor.

 

Article 19

In the event of guarantor change residence,
mailing address, telephone number, the scope of business, and the legal representative, shall notice the creditor in written within
10 days from the date of change events occurred.

 

Article 20

If notary organ grant enforceable potency
to this contract, guarantor agrees to be enforced and gives up the right of defense.

 

Article 21: The Application of Laws and
Resolution of Dispute

The signing, effectiveness, interpretation,
performance and settlement of disputes of this contract shall apply for the People's Republic of China's laws. If there are any
disputes based on this agreement, the contracting parties could attempt to resolve them through consultation. If negotiation fails,
shall resolve the disputes according to the following way of     A    :

 

A. Institute legal proceeding to the court
where the creditor located.

 

B.

 

Article 22

This contract and any modifications and supplement
of it enter into force upon the date when it is signed or sealed and affixed with official seals by the legal representative or
entrusted agents of both parties.

 

Article 23: Other Items Appointed by
Both Parties.

The things which are not mentioned in this
contract should be explained and settled according to relevant laws, administrative laws and regulations, normative documents and
the related regulations of Bank of Jiangsu.

 

Article 24

This agreement is in triplicate, Party A has
one copy, Party B has two copies, three copies have the same legal effect.

   

 

Guarantor (stamp): /s/ [COMPANY SEAL]

Legal representative or agent:

 

Creditor (stamp): /s/ [COMPANY SEAL]

Legal Representative or agent:

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