Document:

Exhibit 4.15

 

Consultation
Service Supplemental Agreement

 

咨询服务补充协议

 

This
“Consultation Service Supplemental Agreement” (referred to as “Supplemental Agreement”) is entered into by and between
Reto Eco-Solutions, Inc.(NASDAQ: RETO) (referred to as “Company or Party A”) and Geniusland International Capital Ltd., a company
incorporated in the British Virgin Islands (referred to as “Consultant or Party B”), on December 29, 2021.

本“咨询服务补充协议”(简称“补充协议”)由Reto
Eco-Solutions, INC,(纳斯达 克上市代码:RETO)(简称“公司或甲方”)与
Geniusland International Capital Ltd 一家注册于BVI公司(简称“顾问或乙方”)于2021年12月29日签署

 

According
to the "Consulting Service Agreement" signed by both parties on January 23, 2021, the following supplementary agreements have
been reached through friendly negotiation: 

根据甲乙双方于2021年1月23日签署“咨询服务协议”经友好协商达成如下补
充协议

 

		I.	Term
                                            of the Supplemental Agreement t: The term of this agreement is from December 29, 2021
                                            to March 28, 2022.

本补充协议期限:自2021年12月29日起,至2022年3月28日终止。

 

	IL	Liability
and Obligations of the Consultant or Party B

顾问或乙方的责任义务

 

		1.	Assist
                                            the Company in planning and implementing future development plans to promote the Company's
                                            long-term growth and create value for shareholders.

协助公司策划和执行未来发展计划,以促进公司的长期增长,为股东创造价
值

 

		2.	Provide
                                            the Company's board of directors and management with all consultations in the benefit of
                                            the company's development (such as business opportunities and risk assessment, company internal
                                            control, etc.).

为公司董事会和管理层提供一切有利于公司发展的咨询(比如商机与风险的
评估、公司内控等)。

 

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		3.	Assist
the Company in finding strategic partners at home and abroad, and assist the Company in negotiating specific contracts, as well as providing
consulting services for the Company's mergers and acquisitions.

协助公司在海内外寻找战略合作伙伴,并协助公司商谈具体合同,以及为公司的
兼并收购提供咨询服务

 

		4.	Cooperate
with the Company's internal and external professional consultants to ensure the Company, as a U.S. listed company, is in consistence
with all laws, regulations and rules applicable to the Company.

与公司内部和外部专业顾问合作确保公司作为一家美国上市公司符合全部适用
于公司的法律、法规和规则

 

		5.	Identify
potential merger and acquisition targets for the Company, and provide necessary business analysis, evaluation and due diligence for the
target company according to the Company's requirements, and provide the Company with consulting services on specific mergers and acquisitions
matters or transactions.

为公司物色潜在的兼并收购对象,并根据公司的要求针对目标公司提供必要的业
务分析、评估以及尽职调查,同时向公司提供特定兼并收购事项或交易的顾问服
务。

 

		III.	Party B's Remuneration

乙方的报酬

 

As
a consideration for the Consultant to provide the consulting services described in this Agreement, the Company agrees to pay the Consultant
remuneration in the following manner:

作为顾问提供本协议描述的咨询服务的对价,公司同意按以下方式向顾问支付报
酬:

 

		1.	Instead
                                            of the cash fee for providing services to the Company, the Consultant shall be paid the consultant
                                            service fee of five hundred thousand shares of the Company's common stocks, each share with
                                            a par value of US$0.001, which refer to the restricted shares under the Securities Act of
                                            1933 (as amended from time to time), of which the lock-up period for 500,000 restricted shares
                                            is 6 months, valued at 70% of the closing price on the day before the signing date per share.
                                            These shares must be issued to the Consultant at one time and the Company must cause such
                                            shares to be issued to the Consultant. All shares will be deemed to have been paid in full
                                            for services already incurred after they are issued (i.e., all consideration and services
                                            have been provided).

本协议支付顾问50万股的公司的普通股,每股面值为0.001美元带有1933年 证券法(经不时修订)下的限制性股票作为顾问服务费用,取代顾问给公司提
供服务的现金费用,50万限制性股票的锁股期为6个月,该股票每股单价按 签字日前一天收盘价70%计入成本。该等股票须被一次性发行给顾问且公司
须促使该等股票被发行给顾问。所有股票在发行后即被视为已全额支付顾问
已经提供的服务(全部对价已被提供)。

 

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		2.	The
                                            above-mentioned five hundred thousand shares of the Company's restricted common stocks shall
                                            be issued to Party B and deemed fully-paid on the day when the Company and the Party B sign
                                            this agreement. Party A must ensure the completion of legend removal on the expiration of
                                            the restricted date of such shares. If the shares issued to Party B cannot be successfully
                                            removed of any restrict legend on time after the expiry date due to Party A's reason, Party
                                            A should pay Party B cash compensation, which is equivalent to the average share price of
                                            the five trading days after the expiry date multiplied by the number of shares.

上述50万股公司的普通股限制性股票须在本补充协议签署后予以发行给乙
方。甲方须确保该等股票限制性日期到期后会顺利解禁,如由于是甲方原因
导致发行给乙方的股票到期后无法按时顺利解禁,甲方将按照到期日前五个
交易日股票平均价格乘以股数给予乙方支付现金赔偿。

 

		IV.	Relationship
between Two Parties

双方关系

 

		1.	Both
parties understand that the Consultant is not an employee or representative of the Company, and this Agreement does not constitute any
employment relations or partnership. The company will not deduct any federal and state income tax, social security tax, unemployment
tax, and labor insurance from the Consultant's income, which shall be reported and paid by the Consultant to the government.

双方明白,顾问并非公司的职员或代表,本协议不构成任何有关雇主和员工
的关系或者合伙关系。公司不会从顾问的收入中扣除任何联邦及州的所得税、
社会安全税、失业税以及劳工保险,所有这一切将由顾问自己向政府上报和
支付

 

		2.	Before
                                            obtaining the Company's written consent in advance, the Consultant has no right to sign any
                                            agreement, contract or letter of intent and other legal documents on behalf of the Company.

在没有得到公司事先书面同意之前,顾问无权代表公司对外签署任何协议、
合同或意向书等法律文书。

 

		3.	Since
                                            the following services require relevant licenses, the Company understands that the Consultant
                                            does not provide: (a) legal opinions; (b) accounting services; (c) financial services; or
                                            (d) brokerage services limited by any federal or state securities laws in the United States.

由于以下服务需要相关准入执照,故公司理解顾问不提供:(a)、法律意见;
(b)、会计服务;(c)、理财服务;或者(d)任何美国联邦或州证券法律规定的
经纪商服务。

 

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		4.	On
the premise that the Consultant makes every endeavor to provide services to the Company, the Company understands and agrees that the
Consultant's services may not guarantee the final result or impact.

在顾问尽最大努力为公司提供服务前提下,公司理解并同意顾问的服务不能保证
最终结果或影响。

 

		V.	Governing
Law And Jurisdiction

适用法律和管辖权

 

This
agreement shall be governed and construed according to the laws of Hong Kong SAR and subject to the jurisdiction of courts in Hong Kong
SAR.

本协议按照中华人民共和国香港特别行政区法律规定遵守并执行,受中华人民共
和国香港特别行政区法院管辖。

 

		VI.	The
"Consulting Service Agreement** signed by both parties on January 23, 2021 shall be replaced by Supplemental Agreement when this
Supplement Agreement is signed by both parties.

本补充协议签署后,双方与2021年1月23日签署的“咨询服务协议”将被此补充协议替代。

 

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    Page 4/5Exhibit 4.19

 

AMENDMENT TO CONVERTIBLE PROMISSORY NOTE

 

This Amendment to Convertible
Promissory Note (this “Amendment”) is entered into as of March 28, 2022, by and between Streeterville
Capital, LLC, a Utah limited liability company (“Lender”), and ReTo Eco-Solutions,
Inc., a British Virgin Islands corporation (“Borrower”). Capitalized terms used in this Amendment without definition
shall have the meanings given to them in the Note (as defined below).

 

RECITALS

 

A. Borrower
previously issued to Lender a Convertible Promissory Note dated March 10, 2022 in the principal amount of $3,105,000.00 (the “Note”).

 

B. Lender
and Borrower have agreed, subject to the terms, amendments, conditions and understandings expressed in this Amendment, to amend Section
3 of the Note.

 

NOW, THEREFORE, for good and
valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties agree as follows:

 

1. Recitals.
Each of the parties hereto acknowledges and agrees that the recitals set forth above in this Amendment are true and accurate and are hereby
incorporated into and made a part of this Amendment.

 

2. Amendment.
Section 3 of the Note is hereby deleted in its entirety and replaced with the following:

 

“Conversions.
Lender has the right at any time after the date that is six (6) months from the Purchase Price Date until the Outstanding Balance has
been paid in full, at its election, to convert (“Conversion”) all or any portion of the Outstanding Balance into fully
paid and non-assessable Common Shares, par value $0.001 (the “Common Shares”), of Borrower (“Conversion Shares”)
as per the following conversion formula: the number of Conversion Shares equals the amount being converted (the “Conversion Amount”)
divided by the Conversion Price; provided, however, that in the event the Floor Price is higher than the Conversion Price, Borrower
must satisfy the Conversion in cash at an amount equal to 110% multiplied by the portion of the Outstanding Balance being converted. Conversion
notices in the form attached hereto as Exhibit A (each, a “Conversion Notice”) may be effectively delivered
to Borrower by any method set forth in the “Notices” Section of the Purchase Agreement, and all Conversions shall be cashless
and not require further payment from Lender. Borrower shall deliver the Conversion Shares from any Conversion to Lender in accordance
with Section 8 below. Borrower shall deliver any cash payments owing hereunder to Lender via wire transfer of immediately available
funds to the account designated by Lender within three (3) Trading Days of its receipt of a Conversion Notice.”

 

3.
Representations and Warranties. In order to induce Lender to enter into this Amendment, Borrower hereby acknowledges, represents,
warrants and agrees as follows:

 

 (a) Borrower has full
power and authority to enter into this Amendment and to incur and perform all obligations and covenants contained herein, all of which
have been duly authorized by all proper and necessary action. No consent, approval, filing or registration with or notice to any governmental
authority is required as a condition to the validity of this Amendment or the performance of any of the obligations of Borrower hereunder.

 

 (b) There is no fact
known to Borrower or which should be known to Borrower which Borrower has not disclosed to Lender on or prior to the date of this Amendment
which would or could materially and adversely affect the understanding of Lender expressed in this Amendment or any representation, warranty,
or recital contained in this Amendment.

 

    

     

    

 

 (c) Except as expressly
set forth in this Amendment, Borrower acknowledges and agrees that neither the execution and delivery of this Amendment nor any of the
terms, provisions, covenants, or agreements contained in this Amendment shall in any manner release, impair, lessen, modify, waive, or
otherwise affect the liability and obligations of Borrower under the Note or any other transaction documents entered into in connection
with the Note (the “Transaction Documents”).

 

 (d) Except as otherwise
provided in the Note, Borrower has no defenses, affirmative or otherwise, rights of setoff, rights of recoupment, claims, counterclaims,
actions or causes of action of any kind or nature whatsoever against Lender, directly or indirectly, arising out of, based upon, or in
any manner connected with, the transactions contemplated hereby, whether known or unknown, which occurred, existed, was taken, permitted,
or begun prior to the execution of this Amendment and occurred, existed, was taken, permitted or begun in accordance with, pursuant to,
or by virtue of any of the terms or conditions of the Transaction Documents. To the extent any such defenses, affirmative or otherwise,
rights of setoff, rights of recoupment, claims, counterclaims, actions or causes of action exist or existed, such defenses, rights, claims,
counterclaims, actions and causes of action are hereby waived, discharged and released. Borrower hereby acknowledges and agrees that the
execution of this Amendment by Lender shall not constitute an acknowledgment of or admission by Lender of the existence of any claims
or of liability for any matter or precedent upon which any claim or liability may be asserted.

 

 (e) Borrower represents
and warrants that as of the date hereof no Events of Default or other material breaches exist under the Transaction Documents or have
occurred prior to the date hereof.

 

4. Certain
Acknowledgments. Each of the parties acknowledges and agrees that no property or cash consideration of any kind whatsoever has been
or shall be given by Lender to Borrower in connection with this Amendment.

 

5. Other
Terms Unchanged. The Note, as amended by this Amendment, remains and continues in full force and effect, constitutes legal, valid,
and binding obligations of each of the parties, and is in all respects agreed to, ratified, and confirmed. Any reference to the Note after
the date of this Amendment is deemed to be a reference to the Note as amended by this Amendment. If there is a conflict between the terms
of this Amendment and the Note, the terms of this Amendment shall control. No forbearance or waiver may be implied by this Amendment.
Except as expressly set forth herein, the execution, delivery, and performance of this Amendment shall not operate as a waiver of, or
as an amendment to, any right, power, or remedy of Lender under the Note, as in effect prior to the date hereof. For the avoidance of
doubt, this Amendment shall be subject to the governing law, venue, and Arbitration Provisions, as set forth in the Note.

 

6. No
Reliance. Borrower acknowledges and agrees that neither Lender nor any of its officers, directors, members, managers, equity holders,
representatives or agents has made any representations or warranties to Borrower or any of its agents, representatives, officers, directors,
or employees except as expressly set forth in this Amendment and the Transaction Documents and, in making its decision to enter into the
transactions contemplated by this Amendment, Borrower is not relying on any representation, warranty, covenant or promise of Lender or
its officers, directors, members, managers, equity holders, agents or representatives other than as set forth in this Amendment.

 

7. Counterparts.
This Amendment may be executed in any number of counterparts, each of which shall be deemed an original, but all of which together shall
constitute one instrument. The parties hereto confirm that any electronic copy of another party’s executed counterpart of this Amendment
(or such party’s signature page thereof) will be deemed to be an executed original thereof.

 

8. Further
Assurances. Each party shall do and perform or cause to be done and performed, all such further acts and things, and shall execute
and deliver all such other agreements, certificates, instruments and documents, as the other party may reasonably request in order to
carry out the intent and accomplish the purposes of this Amendment and the consummation of the transactions contemplated hereby.

 

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    2

     

    

 

IN WITNESS WHEREOF, the undersigned have executed
this Amendment as of the date set forth above.

 

	 	LENDER:
	 	 
	 	Streeterville
    Capital, LLC.
	 	 	 
	 	By:	/s/ John M. Fife
	 	 	John M. Fife, President
	 	 	 
	 	BORROWER:
	 	 	 
	 	ReTo Eco-Solutions,
    Inc.
	 	 	 
	 	By:	/s/ Hengfang
    Li
	 	 	Hengfang Li, Chief Executive Officer

 

[Signature Page to Amendment to Convertible Promissory Note]

 

3

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