Document:

Exhibit
4.3

 

Guarantee
Contract

 

This
contract was signed by the following parties in Chaoyang District, Beijing on August 31, 2020.

 

 

Creditor:
Hangzhou Lianluo Interactive Information Technology Co., Ltd. (hereinafter referred to as “Party A”)

 

Legal
representative: He Zhitao

 

Address:
18th Floor, Xintu Building, 451 Internet of Things Street, Zhejiang Province

 

Unified
Social Credit Code: [                         ]

 

Mailing
address: Lianluo Building, No. 10 Wangjing Street, Chaoyang District, Beijing

 

Debtor:
Lianluo Connection Medical Wearable Device Technology (Beijing) Co., Ltd., (hereinafter referred to as “Party B”)

 

Legal
representative: Chen Ping

 

Address:
Room 611, 612, 618, 619, 6th Floor, North Control Technology Building, Building 2, No. 10, Baifuquan Road, Science and Technology
Park, Changping District, Beijing

 

Unified
social credit code: [                        
]

 

Guarantor:
Chen Ping (hereinafter referred to as “Party C”)

 

Address:
Unit 3, Unit 2, 416 Floor, No. 85 Yongding Road, Haidian District, Beijing

 

ID
number: [                         ]

 

Telephone:
[                         ]

  

 

WHEREAS:

 

1.
Party A and Party B executed Loan Agreements that dated as December 21, 2018, May 10, 2019, and December 31, 2019, “Lianluo
Connection Medical Wearable Device Technology (Beijing) Co., Ltd., and Hangzhou Lianluo Interactive Information Technology Co.,
Ltd. respectively, “Loan Agreement”, “Loan Agreement”, “Supplementary Agreement” (the above
agreements are hereinafter collectively referred to as “master contracts”). As of the signing date of this agreement,
Party A has provided Party B with a loan principal of 6.5 million yuan, which has not been repaid. That is, the principal debt
of the main contract is RMB 6,500,000.00.

 

2.
At the request of Party B, Party C agrees to pledge under the main contract with the shares of Lianluo Smart Limited held by Party
C as a guarantee for the above debt.

 

Based
on equality and voluntariness, Party A, Party B and Party C reached the following agreement through friendly consultations on
Party C’s provision of guarantees for Party B’s performance of the above-mentioned debts for all parties to abide
by:

 

     

     

    

 

Article
1 Basic information of the main claim

 

The
main creditor’s right is the principal and interest that requires the debtor to repay the debt according to the main contract.
Among them, the principal is RMB6,500,000.00. Creditors and debtors confirm here that before December 31, 2020, the above-mentioned
loans are interest-free loans; starting from January 1, 2021, the debtor shall pay interest to creditors at the bank’s loan
interest rate for the same period, and the borrowing period is until the principal and interest of the loan are paid off. In particular,
if Party B’s equity transfer is completed earlier than December 31, 2020, the interest-free period will be terminated early,
and Party B will pay interest to Party A according to the bank’s loan interest rate for the period since the completion
of Party B’s equity transfer.

  

Loan
interest is calculated in the following way: Loan interest = ∑ (borrowing principal × bank interest rate for the same
period / 365 × (the number of days the loan has taken up from January 1, 2021)).

 

Article
2 Scope of Guarantee

 

The
guarantee scope of this contract is the main claims under the contract, including but not limited to the principal, interest,
liquidated damages, compensation, other payments that the debtor should pay to Party A, and the costs incurred by Party A to claim
its creditor’s rights and security rights.

 

Article
3 Guarantee

 

3.1
Upon now, Party C holds 1,613,542 shares of Lianluo Smart Limited. Party C agrees to use all the above-mentioned shares to provide
Party B with an irrevocable pledge guarantee under the main contract. Within 7 days after the signing of this agreement, both
parties A and C shall complete the pledge of the above share.

 

3.2
If Party B fails to perform its obligations or assume responsibilities as stipulated in the main contract, Party A has the right
to directly request Party C to perform the obligation of paying off the above-mentioned relevant funds within the scope of the
secured debt without first recovering the debtor.

 

3.3
Party C guarantees that within three business days after receiving the written notice from Party A, the relevant payment will
be paid to the bank account designated by Party A in accordance with Party A’s requirements. If Party C fails to repay within
the time limit required by Party A, Party A has the right to sell shares, and Party C needs to cooperate. If the stock price is
insufficient to pay off all debts, Party C shall be responsible for making up the shortfall.

 

3.4
The related expenses incurred due to stock pledge shall be borne by Party C.

 

Article
4 Guarantee period

 

4.1
The guarantee period of Party C is three years, and it shall be started from the date when the debtor’s time limit for performance
of the debt stipulated in the main contract expires.

  

Article
5 Party A’s rights and obligations

 

5.1
When the debtor fails to perform the due debts as agreed in the main contract, Party A has the right to request Party C to assume
the agreed guarantee responsibility.

 

5.2
Party A has the right to transfer its principal claim to the debtor to a third party, and Party B has no right to raise any objection
to the transfer of the claim and the assignee. If Party A’s creditor’s rights are transferred, the secured creditor’s
rights of this contract will also be transferred, and Party C guarantees to continue to provide guarantees to the main creditor’s
rights with the scope of the guarantee, guarantee responsibility and guarantee period specified in this contract.

 

    2

     

    

 

Article
6 Party C’s rights and obligations

 

6.1
Party C guarantees that if the debtor fails to fulfill its due debts, it will be able to repay the unpaid amount to Party A.

 

6.2
Party C has the right to recover from the main debtor after fulfilling all guarantee obligations under this contract.

 

Article
7 Party C Commitment

 

7.1
Party C qualified as a legal guarantor to sign this contract.

 

7.2
Party C guarantees that it has read this contract carefully before signing this contract, has an accurate understanding of the
legal meaning of the rights, obligations and liabilities between the parties to this contract, and has no objection to all the
terms of this contract.

 

7.3
The signing, performance and execution of this contract by Party C does not violate the provisions of Chinese laws and regulations,
nor will it conflict with other binding legal documents that it has signed or other transactions that it has entered into.

 

7.4
Party C promises that there is no right restriction on the pledged shares. Before Party A’s claims are paid off, the shares
may not be sold, transferred, or pledged again without the written consent of Party A.

 

Article
8 Liability for breach of contract

 

8.1
After this contract executed, all parties shall strictly perform the obligations stipulated in this contract in accordance with
the principle of good faith.

 

8.2
If any party fails to perform the obligations stipulated in this contract, or does not comply with the obligations stipulated
in this contract, or violates the commitments made in this contract, it shall be deemed as a breach of contract. Unless otherwise
agreed in this contract, the breaching party shall pay compensation this caused losses to other parties. Such losses include,
but are not limited to, actual losses, expected losses, and legal fees, transportation fees, and travel expenses paid by the observant
party for this purpose.

 

Article
9 Independence

 

This
contract has an independent and irrevocable effect. Its validity is not affected by the validity of the main contract. Even if
the main contract is partially or totally invalid for any reason, this contract is still valid.

 

If
a clause of this contract or part of a clause becomes invalid now or in the future, the invalid clause or the invalid part shall
not affect the validity of this contract and other clauses of this contract or other contents of this clause.

 

Article
10 Amendment and termination of contract

 

10.1
After this contract executed, without the consensus of all parties, a written agreement is reached, no party may change this contract
without authorization. If any party need to change the terms of this contract or sign a supplementary contract for unfinished
matters, all parties should reach an agreement through mutual consultation and sign a written document.

 

10.2
No party shall have the right to terminate this contract or cancel a part of it unless the parties agree through consultation
or in accordance with laws and administrative regulations.

 

    3

     

    

 

Article
11 Dispute Resolution and Law Application

 

11.1
Any disputes between the parties regarding the interpretation and performance of this contract shall be resolved through friendly
consultation. Disputes that cannot be resolved through friendly negotiation are entitled to submit to the people’s court
with jurisdiction as agreed in the main contract for litigation.

 

11.2
The validity, interpretation, execution, performance, and dispute resolution of this contract shall be governed by the existing
laws and administrative regulations of the People’s Republic of China (except Hong Kong, Macau and Taiwan).

 

Article
12 Supplementary Provisions

 

12.1
If any documents formed before the signing of this contract conflict with this contract, this contract shall prevail. The attachment
(if any) is an integral part of this contract and has the same effect as this contract.

  

12.2
This contract shall be effective from the date of signature and seal of legal representatives or authorized representatives of
both parties A and B, and signature of party C.

 

12.3
All parties to this contract confirm that they fully know and understand the substantive meaning of all the terms in this contract
and their corresponding legal consequences, and based on this understanding, sign this contract.

 

12.4
This contract is concluded in Chinese, in triplicate, and has the same legal effect. Party A, Party B and Party C hold one copy
each.

 

 

[Signature
page followed]

 

    4

     

    

 

Party
A (Seal): Hangzhou Lianluo Interactive Information Technology Co., Ltd.

 

 

Signature
of Legal Representative:

 

 

 

 

 

Party
B: Lianluo Connection Medical Wearable Device Technology (Beijing) Co., Ltd.,

 

 

Signature
of Legal Representative:

 

 

 

 

 

Party
C: (signature, fingerprint): Chen Ping

 

 

    5Exhibit 4.5

 

DESCRIPTION OF THE REGISTRANT’S SECURITIES
REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

 

As
of December 31, 2020, Americas Technology Acquisition Corp. (“we,” “our,” “us” or the “Company”)
had the following three classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange
Act”): (i) its units, consisting of one ordinary share (as defined below) and one-half of one redeemable warrant (as defined below),
with each whole warrant entitling the holder thereof to purchase one ordinary share (ii) its ordinary shares, $0.0001 par value per share
(the “ordinary shares”), and (iii) its public warrants, with each whole warrant exercisable for one ordinary share for $11.50
per share (the “warrants”).

 

Pursuant
to our amended and restated certificate of incorporation, our authorized capital stock consists of 500,000,000 ordinary shares,
, $0.0001 par value, and 5,000,000 shares of undesignated preferred stock, $0.0001 par value. The following description summarizes the
material terms of our capital stock and does not purport to be complete. It is subject to, and qualified in its entirety by reference
to, our amended and restated certificate of incorporation, our bylaws, and our warrant agreement, each of which is incorporated by reference
as an exhibit to our Annual Report on Form 10-K for the year ended December 31, 2020 (the “Report”) of which this Exhibit
4.5 is a part.

 

Defined terms used herein
but not otherwise defined shall have the meaning ascribed to such terms in the Report.

 

Units

 

Each unit consists of one
ordinary share and one-half of one redeemable warrant. Each whole redeemable warrant entitles the holder thereof to purchase one ordinary
share at a price of $11.50 per share. Pursuant to the warrant agreement, a warrant holder may exercise its warrants only for a
whole number of ordinary shares.

 

Ordinary Shares 

 

Our shareholders of record
are entitled to one vote for each share held on all matters to be voted on by shareholders. In connection with any vote held to approve
our initial business combination, all of our initial shareholders, as well as all of our officers and directors, have agreed to vote their
respective ordinary shares owned by them immediately prior to our initial public offering and any shares purchased in our initial public
offering or following our initial public offering in the open market in favor of the proposed business combination. There is no cumulative
voting with respect to the appointment of directors, with the result that the holders of more than 50% of the shares eligible to vote
for the appointment of directors can elect all of the directors. 

 

If we seek shareholder approval
of our initial business combination and we do not conduct redemptions in connection with our initial business combination pursuant to
the tender offer rules, our amended and restated memorandum and articles of association provide that a public shareholder, together with
any affiliate of such shareholder or any other person with whom such shareholder is acting in concert or as a “group” (as
defined under Section 13 of the Exchange Act), will be restricted from redeeming its shares with respect to more than an aggregate
of 15% of the ordinary shares sold in our initial public offering, which we refer to as the “Excess Shares.” However, we would
not be restricting our shareholders’ ability to vote all of their shares (including Excess Shares) for or against our initial business
combination. Our shareholders’ inability to redeem the Excess Shares will reduce their influence over our ability to complete our
initial business combination, and such shareholders could suffer a material loss in their investment if they sell such Excess Shares on
the open market. Additionally, such shareholders will not receive redemption distributions with respect to the Excess Shares if we complete
the business combination. And, as a result, such shareholders will continue to hold that number of shares exceeding 15% and, in order
to dispose such shares would be required to sell their shares in open market transactions, potentially at a loss.

 

     

     

    

 

Redeemable Warrants

 

No warrants are currently outstanding.
Each redeemable warrant entitles the registered holder to purchase one ordinary share at a price of  $11.50 per share, subject
to adjustment as discussed below, at any time commencing 30 days following of the completion of an initial business combination. Pursuant
to the warrant agreement, a warrant holder may exercise its warrants only for a whole number of ordinary shares.

 

Except as set forth below,
no warrants will be exercisable for cash unless we have an effective and current registration statement covering the ordinary shares issuable
upon exercise of the warrants and a current prospectus relating to such ordinary shares. Notwithstanding the foregoing, if a registration
statement covering the ordinary shares issuable upon exercise of the warrants is not effective within 90 days from the consummation
of our initial business combination, warrant holders may, until such time as there is an effective registration statement and during any
period when we shall have failed to maintain an effective registration statement, exercise warrants on a cashless basis pursuant to the
exemption from registration provided by Section 3(a)(9) of the Securities Act provided that such exemption is available. If an exemption
from registration is not available, holders will not be able to exercise their warrants on a cashless basis.

 

The warrants will expire five years
from the consummation of our initial business combination at 5:00 p.m., New York City time. 

 

We may call the warrants for
redemption (excluding the private warrants), in whole and not in part, at a price of $.01 per warrant: 

 

		•	at any time while the warrants are exercisable, 

 

		•	upon not less than 30 days’ prior written notice of redemption to each warrant holder, 

 

		•	if, and only if, the reported last sale price of the ordinary shares equals or exceeds $18.00 per share,
for any 20 trading days within a 30 trading day period ending on the third business day prior to the notice of redemption to warrant holders,
and 

 

		•	if, and only if, there is a current registration statement in effect with respect to the ordinary shares
underlying such warrants at the time of redemption and for the entire 30-day trading period commencing once the warrants become exercisable
and referred to above and continuing each day thereafter until the date of redemption. 

 

The right to exercise will
be forfeited unless the warrants are exercised prior to the date specified in the notice of redemption. On and after the redemption date,
a record holder of a warrant will have no further rights except to receive the redemption price for such holder’s warrant upon surrender
of such warrant. 

 

If we call the warrants for
redemption as described above, our management will have the option to require all holders that wish to exercise warrants to do so on a
 “cashless basis.” In such event, each holder would pay the exercise price by surrendering the warrants for that number of
ordinary shares equal to the quotient obtained by dividing (x) the product of the number of ordinary shares underlying the warrants,
multiplied by the difference between the exercise price of the warrants and the “fair market value” (defined below) by (y) the
fair market value. The “fair market value” shall mean the volume weighted average price of the ordinary shares for the 20
trading days ending on the third trading day prior to the date on which the notice of redemption is sent to the holders of warrants. Whether
we will exercise our option to require all holders to exercise their warrants on a “cashless basis” will depend on a variety
of factors including the price of our ordinary shares at the time the warrants are called for redemption, our cash needs at such time
and concerns regarding dilutive share issuances. 

 

The warrants have certain anti-dilution
and adjustments rights upon certain events.

 

The warrants are issued in
registered form under a warrant agreement between Continental Stock Transfer & Trust Company, as warrant agent, and us. The warrant
agreement provides that the terms of the warrants may be amended without the consent of any holder to cure any ambiguity or correct any
defective provision, but requires the approval, by written consent or vote, of the holders of a majority of the then outstanding public
warrants in order to make any change that adversely affects the interests of the registered holders. 

 

     

     

    

 

The exercise price and number
of ordinary shares issuable on exercise of the warrants may be adjusted in certain circumstances including in the event of a capitalization
of shares, extraordinary dividend or our recapitalization, reorganization, merger or consolidation. However, the warrants will not be
adjusted for issuances of ordinary shares at a price below their respective exercise prices. 

 

In addition, if we issue additional
ordinary shares or equity-linked securities for capital raising purposes in connection with the closing of our initial business combination
at an issue price or effective issue price of less than $9.20 per share, the aggregate gross proceeds from such issuances represent more
than 60% of the total equity proceeds, and interest thereon, available for the funding of our initial business combination on the date
of the consummation of our initial business combination (net of redemptions), and the Market Value is below $9.20 per share, then the
exercise price of each warrant will be adjusted such that the effective exercise price per full share will be equal to 115% of the higher
of the Market Value and the price at which we issue the additional ordinary shares or equity-linked securities. This may make it more
difficult for us to consummate an initial business combination with a target business. 

 

The warrants may be exercised
upon surrender of the warrant certificate on or prior to the expiration date at the offices of the warrant agent, with the exercise form
on the reverse side of the warrant certificate completed and executed as indicated, accompanied by full payment of the exercise price,
by certified or official bank check payable to us, for the number of warrants being exercised. The warrant holders do not have the rights
or privileges of holders of ordinary shares and any voting rights until they exercise their warrants and receive ordinary shares. After
the issuance of ordinary shares upon exercise of the warrants, each holder will be entitled to one vote for each share held of record
on all matters to be voted on by shareholders. 

 

Except as described above,
no warrants will be exercisable and we will not be obligated to issue ordinary shares unless at the time a holder seeks to exercise such
warrant, a prospectus relating to the ordinary shares issuable upon exercise of the warrants is current and the ordinary shares have been
registered or qualified or deemed to be exempt under the securities laws of the state of residence of the holder of the warrants. Under
the terms of the warrant agreement, we have agreed to use our best efforts to meet these conditions and to maintain a current prospectus
relating to the ordinary shares issuable upon exercise of the warrants until the expiration of the warrants. However, we cannot assure
you that we will be able to do so and, if we do not maintain a current prospectus relating to the ordinary shares issuable upon exercise
of the warrants, holders will be unable to exercise their warrants and we will not be required to settle any such warrant exercise. If
the prospectus relating to the ordinary shares issuable upon the exercise of the warrants is not current or if the ordinary shares is
not qualified or exempt from qualification in the jurisdictions in which the holders of the warrants reside, we will not be required to
net cash settle or cash settle the warrant exercise, the warrants may have no value, the market for the warrants may be limited and the
warrants may expire worthless. 

 

Warrant holders may elect to
be subject to a restriction on the exercise of their warrants such that an electing warrant holder (and his, her or its affiliates) would
not be able to exercise their warrants to the extent that, after giving effect to such exercise, such holder (and his, her or its affiliates)
would beneficially own in excess of 9.8% of the ordinary shares issued and outstanding. Notwithstanding the foregoing, any person who
acquires a warrant with the purpose or effect of changing or influencing the control of our company, or in connection with or as a participant
in any transaction having such purpose or effect, immediately upon such acquisition will be deemed to be the beneficial owner of the underlying
ordinary shares and not be able to take advantage of this provision. 

 

No fractional shares will be
issued upon exercise of the warrants. If, upon exercise of the warrants, a holder would be entitled to receive a fractional interest in
a share (as a result of a subsequent capitalization of shares payable in ordinary shares, or by a split up of the ordinary shares or other
similar event), we will, upon exercise, round up or down to the nearest whole number the number of ordinary shares to be issued to the
warrant holder.

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