Document:

Exhibit 4.18

 

Employment Agreement

 

Party
A: Tantech Holdings Ltd.             

Party
B: Wangfeng Yan             , ID NO. : 
XXXXXXXXXXX             

 

According to the relevant
provisions of the "Contract Law of the People's Republic of China", both parties A and B reached an agreement on the
employment of Party B as follows.

 

1. Employment

 

Party A hires Party
B as the company's CEO .

 

2. The responsibilities
of Party B:

 

		(1)	Fully comprehend the resolutions of the board of directors, monitor the implementation process
of the resolutions, correct problems in time, and ensure the implementation of the resolutions.

 

		(2)	Explore market opportunities, preside over the formulation of the company's business objectives
and management plans, lead the team to implement, and achieve rapid growth of the group's business and investment returns.

 

		(3)	Responsible for operating results, organize the implementation of the financial budget plan and
profit distribution approved by the board of directors;

 

		(4)	Establish the organization system and business system of the company, be responsible for the construction
of the senior management team, select middle and senior management personnel, and review the setting plan and basic management
system of the internal management organization; Responsible for handling major emergencies, reporting to the chairman in time,
and handling other important matters authorized by the chairman;

 

		(5)	Fully preside over the management work of the company, implement the annual performance targets
and business development strategic plans and overall marketing planning plans issued by the board of directors, and realize the
business management goals;

 

		(6)	Continuously optimize the human resources allocation of the company and continuously improve the
overall organizational capabilities of the company; leaders create an enterprise cultural atmosphere, improve the enterprise identification
system, and shape and strengthen the group company values.

 

     

     

    

 

3. Hiring time

 

The first appointment
period is from December 6, 2019 to December 5, 2022. If the agreement has not expired and the two parties have not proposed not
to renew the contract, the agreement shall be deemed to be automatically terminated.

 

4. Working methods

 

Party B works full-time
in Party A, the working hours refer to Party B's personnel system; the place of work is Lishui; Party B can no longer concurrently
serve as CEO of other listed companies outside the Forsen system.

 

5. Treatment and
Payment:

 

Treatment: RMB 200,000
one year.

 

The payment method
: RMB 15,000 per month

 

Party B ’s travel
expenses incurred for Party A ’s work are reported and reimbursed according to the invoice.

 

6. Confidentiality

 

In view of the nature
of Party B ’s work, Party B ’s confidentiality obligations are set out in the Confidentiality Agreement signed by both
parties.

 

7. Settlement of
disputes

 

This agreement becomes
effective after the official seal is signed by both parties. Disputes arising from the performance of this agreement will be resolved
through consultation between the two parties.

 

8. This agreement
is made in duplicate, with the same legal effect, one for each party.

 

 

	Party A (Stamp) Tantech Holdings Ltd	Party B (Stamp): Fengwang Yan

 

Date: December 6, 2019Exhibit 4.19

 

Employment Agreement

Party
A: Tantech Holdings Ltd.          

Party
B: Weilin Zhang           , ID NO. : 
332529196808143318          

 

According to the relevant provisions of
the "Contract Law of the People's Republic of China", both parties A and B reached an agreement on the employment of
Party B as follows.

 

1. Employment

 

Party A hires Party
B as the company's CFO .

 

2.The responsibilities
of Party B:

 

(1) Assist the
CEO of the company to formulate the company's development strategy, and provide forward-looking warnings and measures from
the directions of finance, capital, risk control, and policy;

 

(2) provide
comprehensive financial management from product cost analysis and management, financial control, tax planning, management
reports, business analysis and development planning, corporate financing and deployment, and improve the efficiency of
capital;

 

(3) Establish
and improve financial systems and standards, establish a scientific and systematic financial accounting system and financial
monitoring system, and conduct effective internal financial control and enterprise evaluation;

 

(4) Formulate
effective financing strategies and plans, including financing schemes, equity strategies, and use various financial tools and
financing tools to ensure the company's optimal capital structure;

 

(5) As a senior
management of the company, participate in capital operations such as company acquisitions, mergers, and asset
restructuring;

 

(6)Familiar with capital
market , good relationship with investors and funds, provide financial advice and decision support for the company's major investment,
financing, mergers and acquisitions, and participate in risk assessment, guidance, tracking and control;

 

(7) Responsible
for providing detailed and clear financial performance and relevant corporate financial and operational status reports to the
CEO, board of directors, and investors to provide strategic basis for making business decisions;

 

(8) Supervise
fund management reports and final accounts; preside over the preparation and review of various standardized financial
statements to provide timely and effective financial analysis models for the company;

 

(9) Review
financial statements and submit financial management reports; participate in the review of company legal documents, coordination
of legal affairs, compliance and operation.

 

     

     

    

 

3. Hiring time

 

The first appointment
period is from July 1, 2019 to June 30, 2022. If the agreement has not expired and the two parties have not proposed not to renew
the contract, the agreement shall be deemed to be automatically terminated.

 

4. Working methods

 

Party B works full-time
in Party A, the working hours refer to Party B's personnel system; the place of work is Lishui; Party B can no longer concurrently
serve as CFO of other listed companies outside the Forsen system.

 

5.Treatment and
Payment:

 

Treatment: RMB 300,000
one year.

 

The payment method
: RMB 25,000 per month

 

Party B ’s travel
expenses incurred for Party A ’s work are reported and reimbursed according to the invoice.

 

6. Confidentiality

 

In view of the nature
of Party B ’s work, Party B ’s confidentiality obligations are set out in the Confidentiality Agreement signed by both
parties.

 

7. Settlement of
disputes

 

This agreement becomes
effective after the official seal is signed by both parties. Disputes arising from the performance of this agreement will be resolved
through consultation between the two parties.

 

8. This agreement
is made in duplicate, with the same legal effect, one for each party.

 

 

	Party A (Stamp) Tantech Holdings Ltd	Party B (Stamp): Weilin Zhang

 

Date:  June 26, 2019Exhibit 4.20

 

Employment Agreement

Party
A: Tantech Holdings Ltd.          

Party
B: Mingqin Dong             , ID NO. :
23071119900316001X         

 

According to the relevant
provisions of the "Contract Law of the People's Republic of China", both parties A and B reached an agreement on the
employment of Party B as follows.

 

1. Employment

 

Party A hires Party
B as the company's COO .

 

2.The responsibilities
of Party B:

 

(1) As the
company's core management, participate in the formulation of company strategies, and promote the implementation of the
company's strategic business goals, and are responsible for the results of operations;

 

(2)
Comprehensively control the company's business operation management, build operation system, brand marketing system, product
system, customer service system and sales system, etc., which can optimize business links in real time according to the
operation status and improve business operation efficiency;

 

(3) Implement
various business management and marketing management activities to ensure the completion of business and management
indicators, accurately locate business ideas based on market trends and development trends, and study and formulate business
strategies and guidelines in light of market conditions;

 

(4) Under the
guidance of the company's business strategy, conduct market surveys and feedback, comprehensive planning of the business
direction, strengthen the company's brand image construction, promote the company's extension, connotation value, improve the
company's popularity and brand influence;

 

(5) Lead the internal
team building of the enterprise, improve the internal management mechanism and innovative incentive mechanism, optimize the company's
human resource allocation, and continuously improve the company's overall organizational capabilities。

 

(6) Coordinate the
relationship between various departments, ensure smooth information, rationally allocate resources of each department, and achieve
maximum conversion and output of resources.

 

     

     

    

 

3. Hiring time

 

The first appointment
period is from December 6, 2019 to December 5, 2022. If the agreement has not expired and the two parties have not proposed not
to renew the contract, the agreement shall be deemed to be automatically terminated.

 

4. Working methods

 

Party B works full-time
in Party A, the working hours refer to Party B's personnel system; the place of work is Lishui; Party B can no longer concurrently
serve as COO of other listed companies outside the Forsen system(Except New Third Board Company).

 

5.Treatment and
Payment:

 

Treatment: RMB 180,000
one year.

 

The payment method
: RMB 15,000 per month

 

Party B ’s travel
expenses incurred for Party A ’s work are reported and reimbursed according to the invoice.

 

6. Confidentiality

 

In view of the nature
of Party B ’s work, Party B ’s confidentiality obligations are set out in the Confidentiality Agreement signed by both
parties.

 

7. Settlement of
disputes

 

This agreement becomes
effective after the official seal is signed by both parties. Disputes arising from the performance of this agreement will be resolved
through consultation between the two parties.

 

8. This agreement
is made in duplicate, with the same legal effect, one for each party.

 

 

	Party A (Stamp) Tantech Holdings Ltd	Party B (Stamp): Mingqin Dong

 

Date: December 6, 2019

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