Document:

EX-10.9

 Exhibit 10.9 

EXCLUSIVE CALL OPTION AGREEMENT 
 This
Exclusive Call Option Agreement (this “Agreement”) is executed by and among the following parties on June 21, 2019: 
  

	1.	 Xianggui (Shanghai) Biotechnology Co., Ltd., a limited liability company duly registered in PRC, with
its address at Room 02, 10/F, Building 2, No.588 Zixing Road, Minhang District, Shanghai (“Party A”); 

  

	2.	 Ying Wang, with Chinese identification No. ***, holds 50% equity interest in Party C; 

 

	3.	 Qingchun Zeng, with Chinese identification No. ***, holds 50% equity interest in Party C (together with Ying
Wang, “Party B”); 

  

	4.	 Yang Infinity (Shanghai) Biotechnology Co., Limited (“Yang Infinity”), a limited
liability company organized and existing under the laws of PRC, with its address at Room 1504, 5/F, Building 3, No.909 Tianyaoqiao Road, Xuhui District, Shanghai(“Party C”). 

In this Agreement, each of Party A, Party B and Party C shall be individually referred to as a “Party”, and collectively referred to as the
“Parties”. 
 WHEREAS: 
  

	1.	 Currently, Party B holds 100% of the equity interest in Party C in total. 

	2.	 Subject to the provisions of PRC Laws, Party B and Party C intend to grant Party A and/or its designated
person(s) the exclusive right to purchase all or part of equity interest and/or assets of Party C. And Party A intends to accept such grant of right. 

Now therefore, upon mutual discussion and negotiation, the Parties have reached the following agreement: 

 

	1.	 Sale and Purchase of Equity Interest and Assets 

 

	 	1.1	 Grant of Right 

Subject to the provisions of the PRC laws (including any laws, regulations, rules, notices, interpretations or other binding documents issued
by any central or local legislative, executive or judicial authorities, prior to or after the execution of this Agreement, collectively the “PRC Laws”), Party B hereby irrevocably grants Party A an irrevocable and exclusive right to
purchase, or to designate one or more persons (the “Designated Person”, which shall be (a) the direct or indirect shareholders of Party A and their direct or indirect subsidiaries; (b) the director of Party A, Party
A’s direct or indirect shareholders and their direct or indirect subsidiaries, who is a Chinese citizen) to purchase the equity interests in Party C held by Party B (the “Purchased Equity Interest”) at any time during the term
of this Agreement, in whole or in part and at the price described in Section 1.2 herein (the “Exclusive Equity Interest Purchase Option”). Party C hereby agrees to the grant by Party B of the Equity Interest Purchase Option to
Party A. The term “person” as used herein shall refer to individual, corporation, joint venture, partnership, enterprises, trusts or non-corporation organizations. 

  
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 Subject to the provisions of the PRC Laws, Party C hereby irrevocably grants Party A an
irrevocable and exclusive right to purchase, or designate one or more persons to purchase the assets (the “Purchased Assets”) of Party C at any time during the term of this Agreement in whole or in part and at the price described in
Section 1.2 herein (the “Exclusive Assets Purchase Option”, together with the Exclusive Equity Interest Purchase Option, the “Exclusive Call Option”). 

The Exclusive Call Option is the exclusive right enjoyed by Party A. Without the prior written consent of Party A, Party B shall not sell,
offer to sell, transfer, gift, mortgage or dispose the Purchased Equity Interest in any other ways, or authorize any third party to purchase the Purchased Equity Interest in whole or in part; Party C shall not sell, offer to sell, transfer, gift,
mortgage or dispose the Purchased Assets in any other ways, or authorize any third party to purchase the Purchased Assets in whole or in part. 
  

	 	1.2	 Purchase Price 

When Party A exercises its Exclusive Call Option, with respect to the Purchased Equity Interest, the purchase price shall be the lowest price
allowed by PRC Laws at the time of equity transfer; with respect to the Purchased Assets, the purchase price shall be the net book value of the Purchased Assets, unless the lowest price allowed by PRC Laws then is higher than the net book value of
Purchased Assets, in which case the purchase price should be the lowest price allowed by PRC Laws. 

  
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	 	1.3	 Exercise of Right 

Subject to the PRC Laws, Party A may exercise the Exclusive Call Option at any time in any manner and any number of times at its discretion;

 Party A shall issue a notice to Party B and Party C when it determines to exercise the Exclusive Equity Interest Purchase Option
(hereinafter referred to as the “Equity Interest Purchase Notice”), specifying the portion of equity interests to be purchased from Party B (the form of the Equity Interest Purchase Notice is listed in Exhibit 1); 

Party A shall issue a notice to Party B and Party C when it determines to exercise the Exclusive Assets Purchase Option (the “Assets
Purchase Notice”, together with the Equity Interest Purchase Notice, the “Purchase Notice”), specifying the amount of assets to be purchased from Party C (the form of the Assets Purchase Notice is listed in Exhibit 2). 

 

	 	1.4	 Relevant Actions in relation to the Exercise of Right 

When Party A exercises its Exclusive Call Option, Party B and Party C shall take the following actions collectively or on its own, in order
that the transfer of equity interest/assets fully comply with the provisions of this Agreement and relevant laws both substantively and procedurally: 
  

	 	(1)	 Within seven business days from the receipt of the Purchase Notice, Party B and Party C shall prepare and
execute all the necessary documents relating to the transfer of the purchased equity/assets in accordance with this Agreement and the Purchase Notice in order to transfer the purchased equity/assets to Party A and/or the Designated Person;

  
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	 	(2)	 Party B shall cause Party C to convene a shareholders meeting promptly , at which the resolution approving the
transfer of the equity interest/assets of Party B or Party C to Party A and/or the Designated Person(s) shall be adopted; 

  

	 	(3)	 With regard to the transfer of the Purchased Equity Interest, Party B and Party C shall sign the equity
transfer agreement (the “Transfer Agreement”), in the form set forth in Exhibit 3 of this Agreement, if necessary. If the PRC Laws provide otherwise on the substance and form of the Transfer Agreement, then the Transfer Agreement
shall be adjusted in accordance with the provisions of the PRC Laws. The closing of the Purchased Equity Interest (i.e. the completion of the registration of changes by the administrative department of industry and commerce) shall not be later than
the fifteenth business days from the receipt of the Equity Interest Purchase Notice, unless otherwise agreed by the parties; 

  

	 	(4)	 Upon the execution of this Agreement, Party B and Party C shall each execute a Power of Attorney, in the
substance and form set forth in Exhibit 4, which authorizes any person designated by Party A to execute and deliver equity/assets transfer agreement and any other documents required by this Agreement on behalf of Party B and Party C;

  

	 	(5)	 Party B and Party C shall take all the necessary actions to proceed and complete the relevant approval and
registration procedures without undue delay, and to duly register the purchased equity/assets under the name of Party A and/or the Designated Person without any Security Interest attached. For the purpose of this Section and this Agreement,
“Security Interest” shall include securities, mortgages, pledges, third party’s rights or interests, any stock options, acquisition right, right of first refusal, right to offset, ownership retention or other security
arrangements, but shall not include any security interest created by Equity Interest Pledge Agreement (as defined below); 

  
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	 	(6)	 Party B and Party C shall take all the necessary actions to procure the smooth transfer of the purchased
equity/assets, both in substance and in procedure. Except as otherwise provided in this Agreement, neither Party B nor Party C shall impose any obstacles or restriction on the transfer of purchased equity/assets. 

 

	 	1.5	 The Parties agree that, after Party A exercises its Exclusive Call Option, all the transfer price thus received
by Party B and/or Party C shall be returned to Party A and/or its Designated Person(s),. 

  

	2.	 Covenants 

  

	 	2.1	 Covenants of Party B and Party C 

Party B and Party C hereby irrevocably covenant that: 
  

	 	(1)	 Without the prior written consent of Party A or Party A’s parent company ECMOHO Limited (the
“Party A’s Parent Company”), Party B or Party C shall not in any manner supplement, alter or amend the articles of association of Party C, increase or decrease its registered capital, or change its structure of registered
capital in other manners; 

  

	 	(2)	 They shall maintain the existence of Party C and Party C’s subsidiaries in accordance with good financial
and business standards and practices, and shall prudently and effectively operate its business and handle its affairs; 

  
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	 	(3)	 Without the prior written consent of Party A or Party A’s Parent Company, they shall not, at any time
following the date hereof, sell, transfer, mortgage or dispose of any assets, legitimate or beneficial interest in the business or revenues of Party C in any other ways, or create any Security Interest thereon; 

 

	 	(4)	 Without the prior written consent of Party A or Party A’s Parent Company, they shall not incur, inherit,
guarantee or suffer the existence of any debt, except for (i) debts incurred in the ordinary course of business other than through loans; and (ii) debts disclosed to Party A for which Party A’s written consent has been obtained;

  

	 	(5)	 They shall always operate all of Party C’s businesses during the ordinary course of business to maintain
the asset value of Party C and refrain from any action/omission that may affect Party C’s operating status and asset value; 

  

	 	(6)	 Without the prior written consent of Party A or Party A’s Parent Company, Party C shall not execute any
material contract, except for those in the ordinary course of business (for the purpose of this subsection, a contract with a value exceeding RMB 10,000,000 shall be deemed as a material contract); 

 

	 	(7)	 Without the prior written consent of Party A or Party A’s Parent Company, Party C shall not provide any
person with any loan or credit; 

  
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	 	(8)	 They shall provide Party A with information on Party C’s business operations and financial condition at
Party A’s request; 

  

	 	(9)	 Party C shall procure and maintain insurance from an insurance company acceptable to Party A, at an amount and
type of coverage typical for companies that operate similar businesses owning similar property or assets in the same area; 

  

	 	(10)	 Without the prior written consent of Party A or Party A’s Parent Company, Party C shall not merge,
consolidate with, acquire or invest in any person; 

  

	 	(11)	 They shall immediately notify Party A of any occurrence of, or potential occurrence of, any litigation,
arbitration or administrative proceedings relating to Party C’s assets, business or revenue; 

  

	 	(12)	 To maintain the ownership by Party C of all of its assets, they shall execute all the necessary or appropriate
documents, take all the necessary or appropriate actions and file all the necessary or appropriate complaints or raise necessary and appropriate defense against all claims; and 

 

	 	(13)	 Without the prior written consent of Party A or Party A’s Parent Company, Party C shall not in any manner
distribute dividends, distributable interests and/or any asset to its shareholder; if Party B gains any of the above benefits, it shall notify Party A within three business days and immediately transfer all such benefits to Party A free of charge;

  
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	 	2.2	 Covenants of Party B 

Party B hereby irrevocably undertakes that: 
  

	 	(1)	 Without the prior written consent of Party A or Party A’s Parent Company, Party B shall not sell,
transfer, mortgage or dispose of any legitimate or beneficial interest in the equity interests in Party C held by Party B in any other manner, or allow the encumbrance thereon of any Security Interest, except for the pledge placed on Party C’s
equity held by Party B in accordance with Equity Interest Pledge Agreement (the “Equity Interest Pledge Agreement”) executed by the related parties at the date hereof; 

 

	 	(2)	 Without the prior written consent of Party A or Party A’s Parent Company, Party B shall not vote in favor
of the sale, transfer, mortgage or disposition of any assets, legitimate or beneficial interest in any other ways in Party C’s shareholders meeting, and shall not execute any shareholder resolutions approving the foregoing matters, except for
those actions made in favor of Party A or the Designated Person; 

  

	 	(3)	 Without the prior written consent of Party A or Party A’s Parent Company, Party B shall not vote in favor
of the merger or consolidation with any person, or the acquisition of or investment in any person, or the division of Party C, the change of registered capital or change of company form of Party C in Party C’s shareholders meeting, and shall
not execute any shareholder resolutions approving the foregoing matters; 

  
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	 	(4)	 Party B shall cause the shareholder meeting of Party C to vote in favor of the transfer of the purchased equity
made in accordance with this Agreement; 

  

	 	(5)	 To maintain Party B’s ownership in Party C, Party B shall execute all the necessary or appropriate
documents, take all the necessary or appropriate actions and/or file all the necessary or appropriate complaints or raise necessary and appropriate defense against all claims; 

 

	 	(6)	 Upon the request of Party A, Party B shall appoint any person designated by Party A as the director of Party C;

  

	 	(7)	 Upon the request of Party A, Party B shall promptly and unconditionally transfer its equity interests in Party
C to Party A or its Designated Person and hereby waives its right of first refusal to such equity transfer; 

  

	 	(8)	 Party B shall strictly abide by the provisions of this Agreement and other agreement jointly or separately
executed by and among Party A, Party A’s Parent Company, Party B and Party C, perform the obligations hereunder and thereunder, and refrain from any action/omission that may affect the effectiveness and enforceability thereof.

  
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	3.	 Representations and Warranties of Party B and Party C 

Party B and Party C hereby represent and warrant to Party A, jointly and severally, as of the date of this Agreement and each date of transfer
of the Purchased Equity Interests/Assets, that: 
  

	 	3.1	 it has the authority to execute and deliver this Agreement and any share transfer contracts to which they are a
party concerning the Purchased Equity Interests/Assets to be transferred thereunder (each, a “Transfer Contract”), and to perform their obligations under this Agreement and any Transfer Contract. This Agreement and the Transfer
Contract to which Party B and Party C are a party will constitute their legal, valid and binding obligations and shall be enforceable against them in accordance with the provisions thereof; 

 

	 	3.2	 neither the execution and delivery of Party B and Party C nor the performance by Party B and Party C of its
obligations thereunder will: (a) be in conflict with or in violation of the following documents, with or without the giving of notice or the passage of time: (i) its business license, articles of association, license, the approval of
governmental authority for its establishment and any agreement or any other constitutional documents related to its establishment; (ii) any other applicable laws; (iii) any contracts or other documents to which it is a party, or by which
it or its properties are bound or subject; (b) result in the creation or imposition of any pledge or any other encumbrances, upon its property, or result in the entitlement of any third party to create or impose any pledge or any other
encumbrances, upon its property, except for the pledge placed on Party C’s equity in accordance with the Equity Interest Pledge Agreement; (c) permit the termination or amendment to any contracts or other documents to which it is a party,
or by which it or its properties are bound or subject, or result in the entitlement of any third party to terminate or amend such documents; (d) result in the suspension, revocation, damage, confiscation or the inability of renewal of any
applicable approval, license, registration of governmental authorities; 

  
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	 	3.3	 Party C has a good and merchantable title to all of its assets, and has not placed any Security Interest on the
aforementioned assets; 

  

	 	3.4	 Party C does not have any outstanding debts, except for (i) debt incurred in the ordinary course of
business; and (ii) debts disclosed to Party A for which Party A’s written consent has been obtained. Except for the pledge on the equity interests of Party C in accordance with the Equity Pledge Agreement, Party B has not placed any
Security Interest on such equity interests. 

  

	 	3.5	 Party C has complied with all the applicable laws and regulations; and 

 

	 	3.6	 there is no ongoing or pending or threatened litigation, arbitration or administrative proceedings relating to
the equity interests in Party C, assets of Party C or Party C. 

 Party B hereby undertakes to Party A that, it has made
proper arrangements and executed all the necessary documents to ensure that under the circumstance of his/her decease, incapacity, bankruptcy, divorce or other circumstance that may influence its ability to exercise the shareholder’s right,
his/her successor, guardian, debtor, spouse or any other person who may become the equity holder of Party C, shall not influence or hinder the performance of this Agreement. 

  
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 The Parties hereby undertake that Party A has the right to immediately exercise the
Exclusive Call Option, once the PRC Laws allows Party A to directly hold Party C’s equity interest and Party C can legally continue to engage in its business. 
  

	4.	 Effective Date and Term 

 

	 	4.1	 This Agreement shall come into effect upon the date hereof. 

 

	 	4.2	 This Agreement shall remain effective until all of Party C’s equity interest and/or Party C’s all
assets held by Party B have been legally transferred to Party A and/or the Designated Person(s) according to this Agreement. Notwithstanding the above provision, Party A may terminate this Agreement by written notice to Party B and Party C at any
time 30 days in advance, and Party A shall not be liable for the unilateral termination of this Agreement. 

  

	5.	 Governing Law and Resolution of Disputes 

 

	 	5.1	 The effectiveness, interpretation, performance and the dispute resolution of this agreement shall be governed
by the PRC Laws. 

  

	 	5.2	 In the event of any dispute with respect to the interpretation and performance of this Agreement, the Parties
shall firstly resolve the dispute in good faith through negotiations. In the event the Parties fail to reach an agreement on the dispute within thirty (30) days after either Party issues a written notice on negotiation requirement to the other,
either Party may submit the relevant dispute to the Shanghai International Economic and Trade Arbitration Center for arbitration, in accordance with its then effective arbitration rules. The venue of arbitration shall be Shanghai, and the
arbitration language shall be Chinese. The arbitration award shall be final and binding on all Parties. 

  
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	 	5.3	 During the arbitration period, except for the matters or responsibilities under arbitration, both Parties shall
continue the performance of other responsibilities provided herein. The arbitrator shall be entitled to make appropriate awards so that Party A may receive appropriate legal remedy, including without limitation the restriction of Party B on the
business operation of Party C, the restriction, prohibition or order on the transfer or disposal of Party B’ equity interest or assets of Party C, requirement to Party B on the liquidation of Party C. 

 

	 	5.4	 As required by one Party, the court of jurisdiction is entitled to provisional remedy, such as detainment or
freeze of the assets or equity judgement of the breaching party. After the arbitration award comes into effect, either Party is entitled to apply for enforcement of the arbitral decision to the court of jurisdiction. 

 

	6.	 Taxes and Fees 

Each Party shall pay any and all transfer and registration tax, expenses and fees incurred thereby or levied thereon in connection with the
preparation and execution of this Agreement and the Transfer Agreement, as well as the consummation of the transactions contemplated under this Agreement and the Transfer Agreement. 

  
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	7.	 Notices 

Except as may be otherwise changed through written notice provided herein, the notice herein shall be sent to the following addresses through
personal delivery, fax or registered mail. Where the notice is sent through registered mail, the signature date on the receipt of the registered mail shall be deemed as the delivery date. Where the notice is sent by personal delivery or fax, the
date on which it is sent shall be deemed as the delivery date. If the notice is sent by fax, after sending the fax, the original notice shall also be delivered to the following address through registered mail or personal delivery: 

Party A: Xianggui (Shanghai) Biotechnology Co., Ltd. 

Address: Room 02, 10/F, Building 2, No.588 Zixing Road, Minhang District, Shanghai 

Tel/Fax: 021-61132270 

Attn: Ling Yu 
 Party B: 

Ying Wang 
 Address: ***

 Tel: *** 

  
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 Qingchun Zeng 

Address: *** 
 Tel: *** 

Party C: Yang Infinity (Shanghai) Biotechnology Co., Limited  

Address: Room 1504, 5/F, Building 3, No.909 Tianyaoqiao Road, Xuhui District, Shanghai 

Tel: 021-61132270 

Attn: Ling Yu 
  

	8.	 Confidentiality 

 

	 	8.1	 Prior to the execution of this Agreement and during the term of this Agreement, each Party (the
“Disclosing Party”) has disclosed or from time to time may disclose to the other Party (the “Receiving Party”) its confidential information (including without limitation the business operation information, client
information, financial information and contracts). The Receiving Party shall keep confidential such confidential information and shall not use such confidential information for purposes other than those specifically provided herein. The above
provisions shall not apply to the information that (a) the Receiving Party has written evidence that it has obtained such information before the disclosure by the Disclosing Party; (b) is generally known to the public at the time of
disclosure or becomes generally known with no breach of this Agreement by the Receiving Party; (c) becomes known to the Receiving Party on a non-confidential basis through disclosure by a third-party with
no confidentiality obligation to such confidential information; and (d) required to be disclosed by any laws, regulations or governmental authorities, or disclosed to its legal consultant or accounting consultant for its daily operations.

  
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	 	8.2	 The confidentiality obligations shall survive the termination of this Agreement. 

 

	9.	 Further Warranties 

The Parties agree to promptly execute documents that are reasonably required for or are conducive to the implementation of the provisions and
purposes of this Agreement and take further actions that are reasonably required for or are conducive to the implementation of the provisions and purposes of this Agreement. 
  

	10.	 Force Majeure 

 

	 	10.1	 Where the performance of this Agreement is delayed or hindered due to any “Force Majeure
Event”, the Party under the influence of such force majeure does not need to bear any liabilities for the part of liabilities delayed or hindered and only such part. The force majeure herein means any events that go beyond the reasonable
control of one Party, and are irrevocable despite of the reasonable notice of the Party influenced by such force majeure, including without limitation to government act, natural power, fire, explosion, geographic change, storm, flood, earthquake,
tide, lightning or war. However, the inadequacy of credit, fund or financing may not be deemed as the event out of control of one Party. The Party under the influence of the force majeure that seeks for the relief of liabilities under any articles
hereunder shall as soon as possible notify the other Party of such relief of liabilities and the procedures to be taken for the finish of performance. 

  
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	 	10.2	 The Party under the influence of force majeure does not need to bear any liabilities hereunder. However, so
long as such Party has tried its all reasonable effect in performing this Agreement, may it be able to obtain such relief of liability. And such relief shall be limited to the part of liability delayed or hindered due to the force majeure. Once the
cause of such relief has been corrected or remedied, both Parties agree to try their utmost in resuming the performance of this Agreement. 

  

	11.	 Miscellaneous 

 

	 	11.1	 Amendment, revision and supplement 

Any amendment and supplement to this Agreement shall be made in writing by the Parties. Any duly executed amendments and supplements of this
Agreement are integral parts of this Agreement, and shall have the same legal effect with this Agreement. 
  

	 	11.2	 Entire agreement 

Except for any written amendments, supplements or revision hereafter, this Agreement shall constitute the entire agreement reached by and among
the Parties hereto with respect to the subject matter hereof, and shall supersede all prior oral and written discussion, representations and contracts reached with respect to the subject matter of this Agreement, including the Exclusive Call Option
Agreement executed by the Parties and other relevant parties on July 31, 2018. 

  
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	 	11.3	 Headings 

The headings of this Agreement are for convenience only, and shall not be used to interpret, explain or otherwise affect the meanings of the
provisions of this Agreement. 
  

	 	11.4	 Language 

This Agreement is written in Chinese in multiple copies. 
  

	 	11.5	 Severability 

In the event that one or several of the provisions of this Agreement are found to be invalid, illegal or unenforceable in any aspect in
accordance with any laws or regulations, the validity, legality or enforceability of the remaining provisions of this Agreement shall not be affected or compromised in any respect. The Parties shall consult in good faith to replace such invalid,
illegal or unenforceable provisions with effective provisions, and the economic effect of such effective provisions shall be as close as possible to the economic effect of those invalid, illegal or unenforceable provisions. 

 

	 	11.6	 Successors 

This Agreement shall be binding on the respective successors of the Parties and the permitted assignees of such Parties. 

  
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	 	11.7	 Survival 

Any obligations that occur or that are due as a result of this Agreement upon the expiration or early termination of this Agreement shall
survive the expiration or early termination thereof. 
 The provisions of Article 6, 8 and Article11.8 shall survive the termination of this
Agreement. 
  

	 	11.8	 Waivers 

Any Party may waive the terms and conditions of this Agreement, provided that such a waiver must be provided in writing and shall require the
signatures of the Parties. No waiver by any Party in certain circumstances with respect to a breach by other Parties shall operate as a waiver by such a Party with respect to any similar breach in other circumstances. 

IN WITNESS WHEREOF, the Parties have executed this Exclusive Call Option Agreement as of the date first above written. 

  
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Party A: Xianggui (Shanghai) Biotechnology Co., Ltd. (seal) 

Represent by: /s/ Qingchun Zeng 
 Party B: 

Ying Wang 
 Signature: /s/ Ying Wang 

Qingchun Zeng 
 Signature: /s/ Qingchun Zeng 

Party C: Yang Infinity (Shanghai) Biotechnology Co., Limited (seal) 

Represent by: /s/ Qingchun Zeng 

 Exhibit 1 

Equity Interest Purchase Notice 
 TO: Ying
Wang, Qingchun Zeng 
 Ying Wang, Qingchun Zeng and the undersigned company have executed an Exclusive Call Option Agreement as of the date June 21, 2019.
The terms used in this notice have the same definition if they have been defined in the Agreement. 
 The undersigned company hereby exercises its Exclusive
Assets Purchase Option under the Exclusive Call Option Agreement, and requests the undersigned company/ the [    ] [Company / Person’s Name] designated by the undersigned company as Designated Person to purchase 50%,50%
equity interests in Yang Infinity (Shanghai) Biotechnology Co., Limited respectively hold by Ying Wang, Qingchun Zeng. Upon receipt of this notice, Ying Wang and Qingchun Zeng shall complete the closing of the purchased equity within fifteen
business days in accordance with the Exclusive Call Option Agreement. 
 Xianggui (Shanghai) Biotechnology Co., Ltd.(seal) 

Date: [MM] [DD] [YY] 

 Exhibit 2 

Assets Purchase Option Notice 
 TO: Yang
Infinity (Shanghai) Biotechnology Co., Limited 
 Ying Wang, Qingchun Zeng and the undersigned company have executed an Exclusive Call Option Agreement as
of the date November 8, 2018. The terms used in this notice have the same definition if they have been defined in the Agreement. 
 The undersigned
company hereby exercises its Exclusive Assets Purchase Option under the Exclusive Call Option Agreement, and requests the undersigned company/ the [    ] [Company / Person’s Name] designated by the undersigned company as
Designated Person to purchase all the assets of your company as listed in the attached list (the “Assets to be Transferred”). Please transfer all the Assets to be Transferred within 15 business days in accordance with the Exclusive
Call Option Agreement upon receipt of this notice. 
 Xianggui (Shanghai) Biotechnology Co., Ltd.(seal) 

Date: [MM] [DD] [YY] 

 Exhibit 3 

Transfer Agreement 
 This Transfer
Agreement (hereinafter referred to as this “Agreement”) is made on [MM] [DD] [YY], by and among the following parties: 
 Transferor: Ying
Wang 
 ID No: *** 
 Add: 

Transferor: Qingchun Zeng 
 ID No: *** 

Add: 
 Transferee: [Xianggui (Shanghai) Biotechnology Co., Ltd.
or its designated assignee] 
 Registration NO: 
 Add: 

 The Parties agree as follows: 
  

	1.	 Ying Wang, Qingchun Zeng agree to sell, and the Transferee agrees to accept 50%, 50% equity interests in Yang
Infinity (Shanghai) Biotechnology Co., Limited respectively hold by Ying Wang and Qingchun Zeng (hereinafter referred to as “Purchased Equity Interest”) at the lowest price allowed by PRC Laws. 

 

	2.	 Upon the completion of transference of Purchased Equity Interest, the Transferor no longer has any rights over
the Purchased Equity Interest, and the Transferee shall have all the rights of the above Purchased Equity Interest. 

  

	3.	 The effectiveness, construction, performance and the resolution of disputes hereunder shall be governed by the
laws of China. In the event of any dispute with respect to the construction and performance of this Agreement, the Parties shall first resolve the dispute through friendly negotiations or under the rules in Exclusive Call Option Agreement. In the
event the Parties fail to reach an agreement on the dispute within 30 days after the dispute, either Party may submit the relevant dispute to the Shanghai International Economic and Trade Arbitration Center for arbitration, in accordance with its
then effective arbitration rules by three arbitrator conducted in Shanghai. The arbitral tribunal shall consist of three (3) arbitrators, and each party shall appoint one (1) arbitrator. The third arbitrator shall be appointed by the
Shanghai International Economic and Trade Arbitration Center. If arbitration party or party have been referred to arbitration are more than 2 (natural or legal person), they shall appoint an arbitrator by mutual agreement in writing The arbitration
award shall be final and binding on all Parties. During the arbitration period, except for the matters or responsibilities under arbitration, both Parties shall continue the performance of other responsibilities provided herein. The arbitrator is
entitled to make appropriate award so that Transferee may receive appropriate legal remedy, including without limitation the restriction of Yang Infinity (Shanghai) Biotechnology Co., Limited on the business operation, the restriction, prohibition
or order on the transfer or disposal of the Transferor’ equity interest or assets of Yang Infinity (Shanghai) Biotechnology Co., Limited, requirement to the Transferor on the liquidation of Yang Infinity (Shanghai) Biotechnology Co., Limited

  

	4.	 As required by Transferee, the court of jurisdiction is entitled to provisional remedy, such as detainment or
freeze of the assets or equity interest of the breaching party. After the arbitration award comes into effect, either Party is entitled to application for arbitration award to the court of jurisdiction. 

 

	5.	 The Parties have executed this Agreement as of the date of signature. 

Transferor: 
 Ying Wang (Signature)  

Qingchun Zeng (Signature) 
 Transferee: 

[Yang Infinity (Shanghai) Biotechnology Co., Limited or its designated assignee] 

Legal Representative or Authorized Representative: 

 Exhibit 4 

Irrevocable Power of Attorney (I) 

Pursuant to the Exclusive Call Option Agreement dated June 21, 2019 entered into among I, Shanghai Ecmoho Biotechnology Co., Ltd and Yang Infinity
(Shanghai) Biotechnology Co., Limited , I hereby issue this Power of Attorney. 
 I hereby irrevocably authorize [    ] (hereinafter
referred to as “Representative”) as my representative with sole authority to: (1) prepare and sign the Transfer Agreement (as defined in Exclusive Call Option Agreement”); (2) prepare and sign other necessary documents
related to transfer of Purchased Equity Interest (as defined in Exclusive Call Option Agreement”); (3) handle all relevant legal formalities such as approving and registration of Purchased Equity Interest 

I hereby agree and acknowledge that the Representative has the sole authority to exercise the rights within the foregoing authorization in any manners, and I
undertake to accept the obligations or liabilities arising from the exercise of such rights by the Representative. 
 This Power of Attorney shall become
effective from the date of its execution, and continues its effectiveness during the term of Exclusive Call Option Agreement. 
 Hereby delegate. 

 Ying Wang (signature) /s/ Ying Wang 

Date: June 21, 2019 

 Exhibit 4 

Irrevocable Power of Attorney (II) 

Pursuant to the Exclusive Call Option Agreement dated June 21, 2019 entered into among I, Xianggui (Shanghai) Biotechnology Co., Ltd. and Yang Infinity
(Shanghai) Biotechnology Co., Limited , I hereby issue this Power of Attorney. 
 I hereby irrevocably authorize [    ] (hereinafter
referred to as “Representative”) as my representative with sole authority to: (1) prepare and sign the Transfer Agreement (as defined in Exclusive Call Option Agreement”); (2) prepare and sign other necessary documents
related to transfer of Purchased Equity Interest (as defined in Exclusive Call Option Agreement”); (3) handle all relevant legal formalities such as approving and registration of Purchased Equity Interest 

I hereby agree and acknowledge that the Representative has the sole authority to exercise the rights within the foregoing authorization in any manners, and I
undertake to accept the obligations or liabilities arising from the exercise of such rights by the Representative. 
 This Power of Attorney shall become
effective from the date of its execution, and continues its effectiveness during the term of Exclusive Call Option Agreement. 
 Hereby delegate. 

 Qingchun Zeng (signature) /s/ Qingchun Zeng 

Date: June 21, 2019EX-10.10

 Exhibit 10.10 

Power of Attorney 
 I,
Ying Wang, citizen of the People’s Republic of China (the “PRC”) with the identification number of ***, is the shareholder of Yang Infinity (Shanghai) Biotechnology Co., Limited (“Yang Infinity”) who holds 50%
of the equity interest of Yang Infinity (“My Equity Interest”). Regarding My Equity Interest, I hereby unconditionally and irrevocably authorize Xianggui (Shanghai) Biotechnology Co., Ltd. (hereinafter referred to as the
“Representative”) as my representative and to exercise the following rights during the term of this Power of Attorney: 

As my only and exclusive representative, the Representative is entitled to exercise the following rights of My Equity Interest in my name and
on my behalf: (1) to attend the shareholders’ meeting of Yang Infinity and sign relevant shareholders resolutions on my behalf; (2) to exercise all my shareholder rights according to the laws and the articles of association of Yang
Infinity, including without limitation to shareholder’s voting right and the rights to sell, assign, pledge or dispose of all or part of My Equity Interest; and (3) as my representative, to designate and vote for the legal representative,
board chairman, director of board, supervisor, general manager and other senior management. 
 Within the scope of authorization, the
Representative is entitled to, on my behalf, execute the transfer agreement as provided in the Exclusive Call Option Agreement (to which I shall be a party), and perform the obligations under the Equity Interest Pledge Agreement and the Exclusive
Call Option Agreement to which I am a party dated as of the date hereof. The exercise of such right shall not place any restrictions to this Power of Attorney. 

Except as otherwise provided in this Power of Attorney, the Representative is entitled to assign, use or dispose of the cash dividends and
other non-cash income incurred from My Equity Interest in other ways in accordance with my written or oral instructions. 

 Except as otherwise provided in this Power of Attorney, all the actions of the
Representative regarding My Equity Interest may be made in its own discretion without any of my written or oral instructions. 
 All the
actions of the Representative regarding My Equity Interest shall be deemed to be actions of myself, and all the documents executed by the Representative shall be deemed to be executed by myself. I will acknowledge all such actions and documents.

 The Representative has the right to sub-authorize other qualified representative to perform the
above-mentioned matters and to exercise the right of My Equity Interest without notifying me in advance or obtaining my approval. 
 This
Power of Attorney shall become effective from the date of its execution and shall remain effective and irrevocable as long as I am a shareholder of Yang Infinity. 

During the term of this Power of Attorney, I hereby waive all the rights authorized to the Representative related to My Equity Interest
according to this Power of Attorney and will not exercise such rights by myself. 
  

			
	Signature:	 	 /s/ Ying Wang

		
		 	June 21, 2019

 Power of Attorney 

I, Qingchun Zeng, citizen of the People’s Republic of China (the “PRC”) with the identification number of ***, is the
shareholder of Yang Infinity (Shanghai) Biotechnology Co., Limited (“Yang Infinity”) who holds 50% of the equity interest of Yang Infinity (“My Equity Interest”). Regarding My Equity Interest, I hereby
unconditionally and irrevocably authorize Xianggui (Shanghai) Biotechnology Co., Ltd. (hereinafter referred to as the “Representative”) as my representative and to exercise the following rights during the term of this Power of
Attorney: 
 As my only and exclusive representative, the Representative is entitled to exercise the following rights of My Equity Interest
in my name and on my behalf: (1) to attend the shareholders’ meeting of Yang Infinity and sign relevant shareholders resolutions on my behalf; (2) to exercise all my shareholder rights according to the laws and the articles of
association of Yang Infinity, including without limitation to shareholder’s voting right and the rights to sell, assign, pledge or dispose of all or part of My Equity Interest; and (3) as my representative, to designate and vote for the
legal representative, board chairman, director of board, supervisor, general manager and other senior management. 
 Within the scope of
authorization, the Representative is entitled to, on my behalf, execute the transfer agreement as provided in the Exclusive Call Option Agreement (to which I shall be a party), and perform the obligations under the Equity Interest Pledge Agreement
and the Exclusive Call Option Agreement to which I am a party dated as of the date hereof. The exercise of such right shall not place any restrictions to this Power of Attorney. 

 Except as otherwise provided in this Power of Attorney, the Representative is entitled to
assign, use or dispose of the cash dividends and other non-cash income incurred from My Equity Interest in other ways in accordance with my written or oral instructions. 

Except as otherwise provided in this Power of Attorney, all the actions of the Representative regarding My Equity Interest may be made in its
own discretion without any of my written or oral instructions. 
 All the actions of the Representative regarding My Equity Interest shall
be deemed to be actions of myself, and all the documents executed by the Representative shall be deemed to be executed by myself. I will acknowledge all such actions and documents. 

The Representative has the right to sub-authorize other qualified representative to perform the
above-mentioned matters and to exercise the right of My Equity Interest without notifying me in advance or obtaining my approval. 
 This
Power of Attorney shall become effective from the date of its execution and shall remain effective and irrevocable as long as I am a shareholder of Yang Infinity. 

During the term of this Power of Attorney, I hereby waive all the rights authorized to the Representative related to My Equity Interest
according to this Power of Attorney and will not exercise such rights by myself. 
  

			
	Signature:	 	 /s/ Qingchun Zeng

		
		 	June 21, 2019

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