Document:

Exclusive Option Agreement

 Exhibit 4.13 
 Exclusive Option Agreement 
 This Exclusive Option
Agreement (this “Agreement”) is executed by and among the following Parties as of the 5th day of November, 2010 in Harbin, the People’s Republic of China (“China” or the “PRC”): 
  

			
	Party A:	  	Heilongjiang Jingshangjing Bio-Technology Development Co., Limited, a wholly foreign owned enterprise, organized and existing under the laws of the PRC, with its address at
Room 5, Zone 5, No.18, Hengshan Road, Xiangfang District, Harbin;
		
	Party B:	  	Zhiguo WANG, a Chinese citizen with Chinese Identification No.: 232102196212185810; and
		
	Party C:	  	Harbin Hongdoushan Science and Technology Development Co., Ltd., a limited liability company organized and existing under the laws of the PRC, with its address at Beichuan
Village, Pingshan Town, ACheng District, Harbin.

 In this Agreement, each of Party A, Party B and Party C shall be referred to as a “Party”
respectively, and they shall be collectively referred to as the “Parties”. 
 Whereas: Party B holds 76.65% of the
equity interest in Party C. 
 Now therefore, upon mutual discussion and negotiation, the Parties have reached the following
agreement: 
  

	1.	Sale and Purchase of Equity Interest 

  

	 	1.1	Option Granted 

 In
consideration of the payment of RMB10 by Party A, the receipt and adequacy of which is hereby acknowledged by Party B, Party B hereby irrevocably grants Party A an irrevocable and exclusive right to purchase, or designate one or more persons (each,
a “Designee”) to purchase the equity interests in Party C then held by Party B once or at multiple times at any time in part or in whole at Party A’s sole and absolute discretion to the extent permitted by Chinese laws and at the
price described in Section 1.3 herein (such right being the “Equity Interest Purchase Option”). Except for Party A and the Designee(s), no other person shall be entitled to the Equity Interest Purchase Option or other rights with
respect to the equity interests of Party B. 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 individuals, corporations, partnerships, partners,
enterprises, trusts or non-corporate organizations. 

  
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	 	1.2	Steps for Exercise of Equity Interest Purchase Option 

 Subject to the provisions of the laws and regulations of China, Party A may exercise the Equity Interest Purchase Option by issuing a written notice to Party B (the “Equity Interest Purchase Option
Notice”), specifying: (a) Party A’s decision to exercise the Equity Interest Purchase Option; (b) the portion of equity interests to be purchased from Party B (the “Optioned Interests”); and (c) the date for
purchasing the Optioned Interests and/or the date for transfer of the Optioned Interests. 
  

	 	1.3	Equity Interest Purchase Price 

 The purchase price of the Optioned Interests (the “Base Price”) shall be RMB 10. If appraisal is required by the laws of China at the time when Party A exercises the Equity Interest Purchase
Option, the Parties shall negotiate in good faith and based on the appraisal result make necessary adjustment to the Equity Interest Purchase Price so that it complies with any and all then applicable laws of China (collectively, the “Equity
Interest Purchase Price”). 
  

	 	1.4	Transfer of Optioned Interests 

 For each exercise of the Equity Interest Purchase Option: 
  

	 	1.4.1	Party B shall cause Party C to promptly convene a shareholders’ meeting, at which a resolution shall be adopted approving Party B’s transfer of the Optioned
Interests to Party A and/or the Designee(s); 

  

	 	1.4.2	Party B shall obtain written statements from the other shareholders of Party B giving consent to the transfer of the equity interest to Party A and/or the Designee(s)
and waiving any right of first refusal related thereto. 

  

	 	1.4.3	Party B shall execute a share transfer contract with respect to each transfer with Party A and/or each Designee (whichever is applicable), in accordance with the
provisions of this Agreement and the Equity Interest Purchase Option Notice regarding the Optioned Interests; 

  

	 	1.4.4	 The relevant Parties shall execute all other necessary contracts, agreements or documents, obtain all necessary government licenses and permits and
take all necessary actions to transfer valid ownership of the Optioned Interests to Party A and/or the Designee(s), unencumbered by any security interests, and cause Party A and/or the Designee(s) to become the registered owner(s) of the Optioned
Interests. For the purpose of this Section and this Agreement, “security interests” shall include securities, mortgages, 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 be deemed to exclude any security 

  
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interest created by this Agreement and Party B’s Share Pledge Agreement. “Party B’s Share Pledge Agreement” as used in this Section and this Agreement shall refer to the Share
Pledge Agreement (“Share Pledge Agreement”) executed by and among Party A, Party B and Party C as of the date hereof, whereby Party B pledges all of its equity interests in Party C to Party A, in order to guarantee Party C’s
performance of its obligations under the Exclusive Business Corporation Agreement executed by and between Party C and Party A. 

  

	2.	Covenants 

  

	 	2.1	Covenants regarding Party C 

 Party B (as the shareholders of Party C) and Party C hereby covenant as follows: 
  

	 	2.1.1	Without the prior written consent of Party A, they shall not in any manner supplement, change or amend the articles of association and bylaws of Party C, increase or
decrease its registered capital, or change its structure of registered capital in other manners; 

  

	 	2.1.2	They shall maintain Party C’s corporate existence in accordance with good financial and business standards and practices by prudently and effectively operating its
business and handling its affairs; 

  

	 	2.1.3	Without the prior written consent of Party A, they shall not at any time following the date hereof, sell, transfer, mortgage or dispose of in any manner any assets of
Party C or legal or beneficial interest in the business or revenues of Party C, or allow the encumbrance thereon of any security interest; 

  

	 	2.1.4	Without the prior written consent of Party A, 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; 

  

	 	2.1.5	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; 

  

	 	2.1.6	Without the prior written consent of Party A, they shall not cause Party C to execute any major contract, except the contracts in the ordinary course of business (for
purpose of this subsection, a contract with a price exceeding RMB500,000 shall be deemed a major contract); 

  
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	 	2.1.7	Without the prior written consent of Party A, they shall not cause Party C to provide any person with any loan or credit; 

 

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

 

	 	2.1.9	If requested by Party A, they shall procure and maintain insurance in respect of Party C’s assets and business from an insurance carrier acceptable to Party A, at
an amount and type of coverage typical for companies that operate similar businesses; 

  

	 	2.1.10	Without the prior written consent of Party A, they shall not cause or permit Party C to merge, consolidate with, acquire or invest in any person;

  

	 	2.1.11	They shall immediately notify Party A of the occurrence or possible occurrence of any litigation, arbitration or administrative proceedings relating to Party C’s
assets, business or revenue; 

  

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

  

	 	2.1.13	Without the prior written consent of Party A, they shall ensure that Party C shall not in any manner distribute dividends to its shareholders, provided that upon Party
A’s written request, Party C shall immediately distribute all distributable profits to its shareholders; and 

  

	 	2.1.14	At the request of Party A, they shall appoint any persons designated by Party A as the executive director of Party C. 

 

	 	2.2	Covenants of Party B and Party C 

 Party B hereby covenants as follows: 
  

	 	2.2.1	Without the prior written consent of Party A, Party B shall not sell, transfer, mortgage or dispose of in any other manner any legal or beneficial interest in the
equity interests in Party C held by Party B, or allow the encumbrance thereon of any security interest, except for the pledge placed on these equity interests in accordance with Party B’s Share Pledge Agreement; 

 

	 	2.2.2	 Party B shall cause the shareholders’ meeting and/or the executive director of Party C not to approve the sale, transfer, mortgage or disposition
in any other manner of any legal or beneficial interest in the equity interests in Party C held by Party B, or allow the encumbrance thereon of any security interest, without the prior

  
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written consent of Party A, except for the pledge placed on these equity interests in accordance with Party B’s Share Pledge Agreement; 

 

	 	2.2.3	Party B shall cause the shareholders’ meeting or the executive director of Party C not to approve the merger or consolidation with any person, or the acquisition
of or investment in any person, without the prior written consent of Party A; 

  

	 	2.2.4	Party B shall immediately notify Party A of the occurrence or possible occurrence of any litigation, arbitration or administrative proceedings relating to the equity
interests in Party C held by Party B; 

  

	 	2.2.5	Party B shall cause the shareholders’ meeting or the executive director of Party C to vote their approval of the transfer of the Optioned Interests as set forth in
this Agreement and to take any and all other actions that may be requested by Party A; 

  

	 	2.2.6	To the extent necessary to maintain Party B’s ownership in Party C, Party B shall execute all necessary or appropriate documents, take all necessary or appropriate
actions and file all necessary or appropriate complaints or raise necessary and appropriate defenses against all claims; 

  

	 	2.2.7	Party B shall appoint any designee of Party A as the executive director of Party C, at the request of Party A; 

 

	 	2.2.8	At the request of Party A at any time, Party B shall promptly and unconditionally transfer its equity interests in Party C to Party A’s Designee(s) in accordance
with the Equity Interest Purchase Option under this Agreement, and Party B hereby waives its right of first refusal to the respective share transfer by the other existing shareholder of Party C (if any); and 

 

	 	2.2.9	Party B shall strictly abide by the provisions of this Agreement and other contracts jointly or separately executed by and among Party B, Party C and Party A, perform
the obligations hereunder and thereunder, and refrain from any action/omission that may affect the effectiveness and enforceability thereof. To the extent that Party B has any remaining rights with respect to the equity interests subject to this
Agreement hereunder or under the Share Pledge Agreement among the same parties hereto or under the Power of Attorney granted in favor of Party A, Party B shall not exercise such rights except in accordance with the written instructions of Party A.

  
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	3.	Representations and Warranties 

 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 Optioned Interests, that: 

 

	 	3.1	They have the authority to execute and deliver this Agreement and any share transfer contracts to which they are parties concerning the Optioned Interests to be
transferred thereunder (each, a “Transfer Contracts”), and to perform their obligations under this Agreement and any Transfer Contracts. Party B and Party C agree to enter into Transfer Contracts consistent with the terms of this Agreement
upon Party A’s exercise of the Equity Interest Purchase Option. This Agreement and the Transfer Contracts to which they are parties constitute or will constitute their legal, valid and binding obligations and shall be enforceable against them
in accordance with the provisions thereof; 

  

	 	3.2	The execution and delivery of this Agreement or any Transfer Contracts and the obligations under this Agreement or any Transfer Contracts shall not: (i) cause any
violation of any applicable laws of China; (ii) be inconsistent with the articles of association, bylaws or other organizational documents of Party C; (iii) cause the violation of any contracts or instruments to which they are a party or
which are binding on them, or constitute any breach under any contracts or instruments to which they are a party or which are binding on them; (iv) cause any violation of any condition for the grant and/or continued effectiveness of any
licenses or permits issued to either of them; or (v) cause the suspension or revocation of or imposition of additional conditions to any licenses or permits issued to either of them; 

 

	 	3.3	Party B has a good and merchantable title to the equity interests in Party C he holds. Except for Party B’s Share Pledge Agreement, Party B has not placed any
security interest on such equity interests; 

  

	 	3.4	Party C has a good and merchantable title to all of its assets, and has not placed any security interest on the aforementioned assets; 

 

	 	3.5	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. 

  

	 	3.6	Party C has complied with all laws and regulations of China applicable to asset acquisitions; and 

 

	 	3.7	There are no pending or threatened litigation, arbitration or administrative proceedings relating to the equity interests in Party C, assets of Party C or Party C.

  
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	4.	Effective Date 

This Agreement shall become effective upon the date hereof, and remain effective for a term of 10 years, and may be renewed at Party
A’s election. 
  

	5.	Governing Law and Resolution of Disputes 

  

	 	5.1	Governing law 

 The
execution, effectiveness, construction, performance, amendment and termination of this Agreement and the resolution of disputes hereunder shall be governed by the formally published and publicly available laws of China. Matters not covered by
formally published and publicly available laws of China shall be governed by international legal principles and practices. 
  

	 	5.2	Methods of Resolution of Disputes 

 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. In the event the Parties fail to
reach an agreement on the dispute within 30 days after either Party’s request to the other Parties for resolution of the dispute through negotiations, either Party may submit the relevant dispute to the China International Economic and Trade
Arbitration Commission for arbitration, in accordance with its Arbitration Rules. The arbitration shall be conducted in Beijing, and the language used in arbitration shall be Chinese. The arbitration award shall be final and binding on all Parties.

  

	6.	Taxes and Fees 

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

 

	7.	Notices 

  

	 	7.1	All notices and other communications required or permitted to be given pursuant to this Agreement shall be delivered personally or sent by registered mail, postage
prepaid, by a commercial courier service or by facsimile transmission to the address of such Party set forth below. A confirmation copy of each notice shall also be sent by email. The dates on which notices shall be deemed to have been effectively
given shall be determined as follows: 

  

	 	7.1.1	Notices given by personal delivery, by courier service or by registered mail, postage prepaid, shall be deemed effectively given on the date of receipt or refusal at
the address specified for notices. 

  
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	 	7.1.2	Notices given by facsimile transmission shall be deemed effectively given on the date of successful transmission (as evidenced by an automatically generated
confirmation of transmission). 

  

	 	7.2	For the purpose of notices, the addresses of the Parties are as follows: 

  

			
	Party A:	  	Heilongjiang Jingshangjing Bio-Technology Development Co., Limited
	Address:	  	Room 5, Zone 5, No.18, Hengshan Road, Xiangfang District, Harbin
		
	Party B:	  	Zhiguo WANG
	Address:	  	No.234, Gexin Road, Nangang, Harbin
		
	Party C:	  	Harbin Hongdoushan Science and Technology Development Co., Ltd.
	Address:	  	Beichuan Village, Pingshan Town, ACheng District, Harbin

  

	 	7.3	Any Party may at any time change its address for notices by a notice delivered to the other Parties in accordance with the terms hereof. 

 

	8.	Confidentiality 

The Parties acknowledge that the existence and the terms of this Agreement and any oral or written information exchanged between the
Parties in connection with the preparation and performance this Agreement are regarded as confidential information. Each Party shall maintain confidentiality of all such confidential information, and without obtaining the written consent of the
other Party, it shall not disclose any relevant confidential information to any third parties, except for the information that: (a) is or will be in the public domain (other than through the receiving Party’s unauthorized disclosure);
(b) is under the obligation to be disclosed pursuant to the applicable laws or regulations, rules of any stock exchange, or orders of the court or other government authorities; or (c) is required to be disclosed by any Party to its
shareholders, investors, legal counsels or financial advisors regarding the transaction contemplated hereunder, provided that such shareholders, investors, legal counsels or financial advisors shall be bound by the confidentiality obligations
similar to those set forth in this Section. Disclosure of any confidential information by the staff members or agencies hired by any Party shall be deemed disclosure of such confidential information by such Party, which Party shall be held liable
for breach of this Agreement. This Section shall survive the termination of this Agreement for any reason. 
  

	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. 

  
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	10.	Miscellaneous 

  

	 	10.1	Amendment, change and supplement 

 Any amendment, change and supplement to this Agreement shall require the execution of a written agreement by all of the Parties. 

 

	 	10.2	Entire agreement 

 Except
for the amendments, supplements or changes in writing executed after the execution of this Agreement, this Agreement shall constitute the entire agreement reached by and among the Parties hereto with respect to the subject matter hereof, and shall
supercede all prior oral and written consultations, representations and contracts reached with respect to the subject matter of this Agreement. 
  

	 	10.3	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. 
  

	 	10.4	Language 

 This Agreement
is written in both Chinese and English language in three copies, each Party having one copy with equal legal validity; in case there is any conflict between the Chinese version and the English version, the Chinese version shall prevail. 

 

	 	10.5	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 strive in good faith to replace such invalid, illegal or unenforceable provisions with effective provisions that accomplish to the greatest extent permitted by law and
the intentions of the Parties, 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. 

 

	 	10.6	Successors 

 This
Agreement shall be binding on and shall inure to the interest of the respective successors of the Parties and the permitted assigns of such Parties. 

  
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	 	10.8	Survival 

  

	 	10.8.1	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. 

  

	 	10.8.2	The provisions of Sections 5, 7, 8 and this Section 10.8 shall survive the termination of this Agreement. 

 

	 	10.9	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. 

  
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 IN WITNESS WHEREOF, the Parties have caused their authorized representatives to execute this
Exclusive Option Agreement as of the date first above written. 
  

							
	Party A:	 	Heilongjiang Jingshangjing Bio-Technology Development Co., Limited
				
	By:	 	 /s/ Guifang Qi
	 		 	
	Name:	 	 Guifang QI
	 		 	
	Title:	 	Legal Representative	 		 	
				
	Party B:	 	Zhiguo WANG	 		 	
				
	By:	 	 /s/ Zhiguo Wang
	 		 	
		
	Party C:	 	Harbin Hongdoushan Science and Technology Development Co., Ltd.
				
	By:	 	 /s/ Zhiguo Wang
	 		 	
	Name:	 	Zhiguo WANG	 		 	
	Title:	 	Legal RepresentativeExclusive Option Agreement

 Exhibit 4.14 
 Exclusive Option Agreement 
 This Exclusive Option
Agreement (this “Agreement”) is executed by and among the following Parties as of the 5th day of November, 2010 in Harbin, the People’s Republic of China (“China” or the “PRC”): 
  

			
	Party A:	  	Heilongjiang Jingshangjing Bio-Technology Development Co., Limited, a wholly foreign owned enterprise, organized and existing under the laws of the PRC, with its address at
Room 5, Zone 5, No.18, Hengshan Road, Xiangfang District, Harbin;
		
	Party B:	  	Guifang QI, a Chinese citizen with Chinese Identification No.: 23210219621101282x; and
		
	Party C:	  	Harbin Hongdoushan Science and Technology Development Co., Ltd., a limited liability company organized and existing under the laws of the PRC, with its address at Beichuan
Village, Pingshan Town, ACheng District, Harbin.

 In this Agreement, each of Party A, Party B and Party C shall be referred to as a “Party”
respectively, and they shall be collectively referred to as the “Parties”. 
 Whereas: Party B holds 18.53% of the
equity interest in Party C. 
 Now therefore, upon mutual discussion and negotiation, the Parties have reached the following
agreement: 
  

	1.	Sale and Purchase of Equity Interest 

  

	 	1.1	Option Granted 

 In
consideration of the payment of RMB10 by Party A, the receipt and adequacy of which is hereby acknowledged by Party B, Party B hereby irrevocably grants Party A an irrevocable and exclusive right to purchase, or designate one or more persons (each,
a “Designee”) to purchase the equity interests in Party C then held by Party B once or at multiple times at any time in part or in whole at Party A’s sole and absolute discretion to the extent permitted by Chinese laws and at the
price described in Section 1.3 herein (such right being the “Equity Interest Purchase Option”). Except for Party A and the Designee(s), no other person shall be entitled to the Equity Interest Purchase Option or other rights with
respect to the equity interests of Party B. 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 individuals, corporations, partnerships, partners,
enterprises, trusts or non-corporate organizations. 

  
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	 	1.2	Steps for Exercise of Equity Interest Purchase Option 

 Subject to the provisions of the laws and regulations of China, Party A may exercise the Equity Interest Purchase Option by issuing a written notice to Party B (the “Equity Interest Purchase Option
Notice”), specifying: (a) Party A’s decision to exercise the Equity Interest Purchase Option; (b) the portion of equity interests to be purchased from Party B (the “Optioned Interests”); and (c) the date for
purchasing the Optioned Interests and/or the date for transfer of the Optioned Interests. 
  

	 	1.3	Equity Interest Purchase Price 

 The purchase price of the Optioned Interests (the “Base Price”) shall be RMB 10. If appraisal is required by the laws of China at the time when Party A exercises the Equity Interest Purchase
Option, the Parties shall negotiate in good faith and based on the appraisal result make necessary adjustment to the Equity Interest Purchase Price so that it complies with any and all then applicable laws of China (collectively, the “Equity
Interest Purchase Price”). 
  

	 	1.4	Transfer of Optioned Interests 

 For each exercise of the Equity Interest Purchase Option: 
  

	 	1.4.1	Party B shall cause Party C to promptly convene a shareholders’ meeting, at which a resolution shall be adopted approving Party B’s transfer of the Optioned
Interests to Party A and/or the Designee(s); 

  

	 	1.4.2	Party B shall obtain written statements from the other shareholders of Party B giving consent to the transfer of the equity interest to Party A and/or the Designee(s)
and waiving any right of first refusal related thereto. 

  

	 	1.4.3	Party B shall execute a share transfer contract with respect to each transfer with Party A and/or each Designee (whichever is applicable), in accordance with the
provisions of this Agreement and the Equity Interest Purchase Option Notice regarding the Optioned Interests; 

  

	 	1.4.4	 The relevant Parties shall execute all other necessary contracts, agreements or documents, obtain all necessary government licenses and permits and
take all necessary actions to transfer valid ownership of the Optioned Interests to Party A and/or the Designee(s), unencumbered by any security interests, and cause Party A and/or the Designee(s) to become the registered owner(s) of the Optioned
Interests. For the purpose of this Section and this Agreement, “security interests” shall include securities, mortgages, 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 be deemed to exclude any security 

  
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interest created by this Agreement and Party B’s Share Pledge Agreement. “Party B’s Share Pledge Agreement” as used in this Section and this Agreement shall refer to the Share
Pledge Agreement (“Share Pledge Agreement”) executed by and among Party A, Party B and Party C as of the date hereof, whereby Party B pledges all of its equity interests in Party C to Party A, in order to guarantee Party C’s
performance of its obligations under the Exclusive Business Corporation Agreement executed by and between Party C and Party A. 

  

	2.	Covenants 

  

	 	2.1	Covenants regarding Party C 

 Party B (as the shareholders of Party C) and Party C hereby covenant as follows: 
  

	 	2.1.1	Without the prior written consent of Party A, they shall not in any manner supplement, change or amend the articles of association and bylaws of Party C, increase or
decrease its registered capital, or change its structure of registered capital in other manners; 

  

	 	2.1.2	They shall maintain Party C’s corporate existence in accordance with good financial and business standards and practices by prudently and effectively operating its
business and handling its affairs; 

  

	 	2.1.3	Without the prior written consent of Party A, they shall not at any time following the date hereof, sell, transfer, mortgage or dispose of in any manner any assets of
Party C or legal or beneficial interest in the business or revenues of Party C, or allow the encumbrance thereon of any security interest; 

  

	 	2.1.4	Without the prior written consent of Party A, 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; 

  

	 	2.1.5	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; 

  

	 	2.1.6	Without the prior written consent of Party A, they shall not cause Party C to execute any major contract, except the contracts in the ordinary course of business (for
purpose of this subsection, a contract with a price exceeding RMB500,000 shall be deemed a major contract); 

  
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	 	2.1.7	Without the prior written consent of Party A, they shall not cause Party C to provide any person with any loan or credit; 

 

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

 

	 	2.1.9	If requested by Party A, they shall procure and maintain insurance in respect of Party C’s assets and business from an insurance carrier acceptable to Party A, at
an amount and type of coverage typical for companies that operate similar businesses; 

  

	 	2.1.10	Without the prior written consent of Party A, they shall not cause or permit Party C to merge, consolidate with, acquire or invest in any person;

  

	 	2.1.11	They shall immediately notify Party A of the occurrence or possible occurrence of any litigation, arbitration or administrative proceedings relating to Party C’s
assets, business or revenue; 

  

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

  

	 	2.1.13	Without the prior written consent of Party A, they shall ensure that Party C shall not in any manner distribute dividends to its shareholders, provided that upon Party
A’s written request, Party C shall immediately distribute all distributable profits to its shareholders; and 

  

	 	2.1.14	At the request of Party A, they shall appoint any persons designated by Party A as the executive director of Party C. 

 

	 	2.2	Covenants of Party B and Party C 

 Party B hereby covenants as follows: 
  

	 	2.2.1	Without the prior written consent of Party A, Party B shall not sell, transfer, mortgage or dispose of in any other manner any legal or beneficial interest in the
equity interests in Party C held by Party B, or allow the encumbrance thereon of any security interest, except for the pledge placed on these equity interests in accordance with Party B’s Share Pledge Agreement; 

 

	 	2.2.2	 Party B shall cause the shareholders’ meeting and/or the executive director of Party C not to approve the sale, transfer, mortgage or disposition
in any other manner of any legal or beneficial interest in the equity interests in Party C held by Party B, or allow the encumbrance thereon of any security interest, without the prior

  
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written consent of Party A, except for the pledge placed on these equity interests in accordance with Party B’s Share Pledge Agreement; 

 

	 	2.2.3	Party B shall cause the shareholders’ meeting or the executive director of Party C not to approve the merger or consolidation with any person, or the acquisition
of or investment in any person, without the prior written consent of Party A; 

  

	 	2.2.4	Party B shall immediately notify Party A of the occurrence or possible occurrence of any litigation, arbitration or administrative proceedings relating to the equity
interests in Party C held by Party B; 

  

	 	2.2.5	Party B shall cause the shareholders’ meeting or the executive director of Party C to vote their approval of the transfer of the Optioned Interests as set forth in
this Agreement and to take any and all other actions that may be requested by Party A; 

  

	 	2.2.6	To the extent necessary to maintain Party B’s ownership in Party C, Party B shall execute all necessary or appropriate documents, take all necessary or appropriate
actions and file all necessary or appropriate complaints or raise necessary and appropriate defenses against all claims; 

  

	 	2.2.7	Party B shall appoint any designee of Party A as the executive director of Party C, at the request of Party A; 

 

	 	2.2.8	At the request of Party A at any time, Party B shall promptly and unconditionally transfer its equity interests in Party C to Party A’s Designee(s) in accordance
with the Equity Interest Purchase Option under this Agreement, and Party B hereby waives its right of first refusal to the respective share transfer by the other existing shareholder of Party C (if any); and 

 

	 	2.2.9	Party B shall strictly abide by the provisions of this Agreement and other contracts jointly or separately executed by and among Party B, Party C and Party A, perform
the obligations hereunder and thereunder, and refrain from any action/omission that may affect the effectiveness and enforceability thereof. To the extent that Party B has any remaining rights with respect to the equity interests subject to this
Agreement hereunder or under the Share Pledge Agreement among the same parties hereto or under the Power of Attorney granted in favor of Party A, Party B shall not exercise such rights except in accordance with the written instructions of Party A.

  
 5 

	3.	Representations and Warranties 

 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 Optioned Interests, that: 

 

	 	3.1	They have the authority to execute and deliver this Agreement and any share transfer contracts to which they are parties concerning the Optioned Interests to be
transferred thereunder (each, a “Transfer Contracts”), and to perform their obligations under this Agreement and any Transfer Contracts. Party B and Party C agree to enter into Transfer Contracts consistent with the terms of this Agreement
upon Party A’s exercise of the Equity Interest Purchase Option. This Agreement and the Transfer Contracts to which they are parties constitute or will constitute their legal, valid and binding obligations and shall be enforceable against them
in accordance with the provisions thereof; 

  

	 	3.2	The execution and delivery of this Agreement or any Transfer Contracts and the obligations under this Agreement or any Transfer Contracts shall not: (i) cause any
violation of any applicable laws of China; (ii) be inconsistent with the articles of association, bylaws or other organizational documents of Party C; (iii) cause the violation of any contracts or instruments to which they are a party or
which are binding on them, or constitute any breach under any contracts or instruments to which they are a party or which are binding on them; (iv) cause any violation of any condition for the grant and/or continued effectiveness of any
licenses or permits issued to either of them; or (v) cause the suspension or revocation of or imposition of additional conditions to any licenses or permits issued to either of them; 

 

	 	3.3	Party B has a good and merchantable title to the equity interests in Party C he holds. Except for Party B’s Share Pledge Agreement, Party B has not placed any
security interest on such equity interests; 

  

	 	3.4	Party C has a good and merchantable title to all of its assets, and has not placed any security interest on the aforementioned assets; 

 

	 	3.5	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. 

  

	 	3.6	Party C has complied with all laws and regulations of China applicable to asset acquisitions; and 

 

	 	3.7	There are no pending or threatened litigation, arbitration or administrative proceedings relating to the equity interests in Party C, assets of Party C or Party C.

  
 6 

	4.	Effective Date 

This Agreement shall become effective upon the date hereof, and remain effective for a term of 10 years, and may be renewed at Party
A’s election. 
  

	5.	Governing Law and Resolution of Disputes 

  

	 	5.1	Governing law 

 The
execution, effectiveness, construction, performance, amendment and termination of this Agreement and the resolution of disputes hereunder shall be governed by the formally published and publicly available laws of China. Matters not covered by
formally published and publicly available laws of China shall be governed by international legal principles and practices. 
  

	 	5.2	Methods of Resolution of Disputes 

 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. In the event the Parties fail to
reach an agreement on the dispute within 30 days after either Party’s request to the other Parties for resolution of the dispute through negotiations, either Party may submit the relevant dispute to the China International Economic and Trade
Arbitration Commission for arbitration, in accordance with its Arbitration Rules. The arbitration shall be conducted in Beijing, and the language used in arbitration shall be Chinese. The arbitration award shall be final and binding on all Parties.

  

	6.	Taxes and Fees 

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

 

	7.	Notices 

  

	 	7.1	All notices and other communications required or permitted to be given pursuant to this Agreement shall be delivered personally or sent by registered mail, postage
prepaid, by a commercial courier service or by facsimile transmission to the address of such Party set forth below. A confirmation copy of each notice shall also be sent by email. The dates on which notices shall be deemed to have been effectively
given shall be determined as follows: 

  

	 	7.1.1	Notices given by personal delivery, by courier service or by registered mail, postage prepaid, shall be deemed effectively given on the date of receipt or refusal at
the address specified for notices. 

  
 7 

	 	7.1.2	Notices given by facsimile transmission shall be deemed effectively given on the date of successful transmission (as evidenced by an automatically generated
confirmation of transmission). 

  

	 	7.2	For the purpose of notices, the addresses of the Parties are as follows: 

  

			
	Party A:	  	Heilongjiang Jingshangjing Bio-Technology Development Co., Limited
	Address:	  	Room 5, Zone 5, No.18, Hengshan Road, Xiangfang District, Harbin
		
	Party B:	  	Guifang QI
	Address:	  	No. 234, Gexin Road, Nangang District, Harbin
		
	Party C:	  	Harbin Hongdoushan Science and Technology Development Co., Ltd.
	Address:	  	Beichuan Village, Pingshan Town, ACheng District, Harbin

  

	 	7.3	Any Party may at any time change its address for notices by a notice delivered to the other Parties in accordance with the terms hereof. 

 

	8.	Confidentiality 

The Parties acknowledge that the existence and the terms of this Agreement and any oral or written information exchanged between the
Parties in connection with the preparation and performance this Agreement are regarded as confidential information. Each Party shall maintain confidentiality of all such confidential information, and without obtaining the written consent of the
other Party, it shall not disclose any relevant confidential information to any third parties, except for the information that: (a) is or will be in the public domain (other than through the receiving Party’s unauthorized disclosure);
(b) is under the obligation to be disclosed pursuant to the applicable laws or regulations, rules of any stock exchange, or orders of the court or other government authorities; or (c) is required to be disclosed by any Party to its
shareholders, investors, legal counsels or financial advisors regarding the transaction contemplated hereunder, provided that such shareholders, investors, legal counsels or financial advisors shall be bound by the confidentiality obligations
similar to those set forth in this Section. Disclosure of any confidential information by the staff members or agencies hired by any Party shall be deemed disclosure of such confidential information by such Party, which Party shall be held liable
for breach of this Agreement. This Section shall survive the termination of this Agreement for any reason. 
  

	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. 

  
 8 

	10.	Miscellaneous 

  

	 	10.1	Amendment, change and supplement 

 Any amendment, change and supplement to this Agreement shall require the execution of a written agreement by all of the Parties. 

 

	 	10.2	Entire agreement 

 Except
for the amendments, supplements or changes in writing executed after the execution of this Agreement, this Agreement shall constitute the entire agreement reached by and among the Parties hereto with respect to the subject matter hereof, and shall
supercede all prior oral and written consultations, representations and contracts reached with respect to the subject matter of this Agreement. 
  

	 	10.3	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. 
  

	 	10.4	Language 

 This Agreement
is written in both Chinese and English language in three copies, each Party having one copy with equal legal validity; in case there is any conflict between the Chinese version and the English version, the Chinese version shall prevail. 

 

	 	10.5	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 strive in good faith to replace such invalid, illegal or unenforceable provisions with effective provisions that accomplish to the greatest extent permitted by law and
the intentions of the Parties, 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. 

 

	 	10.6	Successors 

 This
Agreement shall be binding on and shall inure to the interest of the respective successors of the Parties and the permitted assigns of such Parties. 

  
 9 

	 	10.8	Survival 

  

	 	10.8.1	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. 

  

	 	10.8.2	The provisions of Sections 5, 7, 8 and this Section 10.8 shall survive the termination of this Agreement. 

 

	 	10.9	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. 

  
 10 

 IN WITNESS WHEREOF, the Parties have caused their authorized representatives to execute this
Exclusive Option Agreement as of the date first above written. 
  

					
	Party A:	 	Heilongjiang Jingshangjing Bio-Technology Development Co., Limited
			
	By:	 	 /s/ Guifang Qi
	 	
	Name:	 	 Guifang QI
	 	
	Title:	 	Legal Representative	 	
		
	Party B:	 	Guifang QI
			
	By:	 	 /s/ Guifang Qi
	 	
		
	Party C:	 	Harbin Hongdoushan Science and Technology Development Co., Ltd.
			
	By:	 	 /s/ Zhiguo Wang
	 	
	Name:	 	Zhiguo WANG	 	
	Title:	 	Legal Representative

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