Exhibit 4.99


 


Equity Interest Pledge Agreement


 


This Equity Interest Pledge Agreement (this
“Agreement”) has been executed by and among the following parties on July 3, 2017in Shenzhen, the People’s
Republic of China (“China” or the “PRC”):


 


Party A:E-Sun
Sky Computer (Shenzhen) Co., Ltd (hereinafter “Pledgee”), a wholly foreign owned enterprise, organized and existing
under the laws of the PRC, with its address at Room B01, Floor 8, Building 7B, Shenzhen Bay ecological science and Technology Park,
Nanshan District, Shenzhen;


 


Party
B:Zhang Han (hereinafter “Pledgor”), a Chinese citizen with Chinese Identification No.: 422802198708030014;
and


 


Party
C: Shenzhen E-Sun Network Co., Ltd., a limited liability company organized and existing under the laws of the PRC, with
its address at Room 1-C, Complex Building (including affiliated equipment room), Shenxianling Sports Center, Central City, Longgang
District, Shenzhen


 


In this Agreement, each of Pedgee, Pledgor
and Party C shall be referred to as a “Party” respectively, and they shall be collectively referred to as the “Parties”.


 


		Whereas:	



 


Party C is a limited liability company
registered in Shenzhen, China, engaging in the Internet information service business. Party C acknowledges the respective rights
and obligations of Pledgor and Pledgee under this Agreement, and intends to provide any necessary assistance in registering the
Pledge;


 


Pledgee is wholly foreign-owned enterprise
registered in China. Pledgee and Party C partially owned by Pledgor have executed an Exclusive Business Cooperation Agreement on
as of the execution date of this Agreement;


 


To ensure that Party C fully performs its
obligations under the Exclusive Business Cooperation Agreement any pay the consulting and service fees thereunder to the Pledgee
when the same becomes due, Pledgor hereby pledges to the Pledgee all of the equity interest he holds in Party C as security for
payment of the consulting and service fees by Party C under the Business Cooperation Agreement.


 


To ensure that Party C fully performs its
obligations under the Exclusive Business Cooperation Agreement and pay the consulting and service fees thereunder to the Pledgee
when the same becomes due, Pledgor hereby pledges to the Pledgee all of the equity interest he holds in Party C as security for
payment of the consulting and service fees by Party C under the Business Cooperation Agreement.


 




    	 	 	 



     


    

  


To perform the provisions of the Business
Cooperation Agreement, the Parties have mutually agreed to execute this Agreement upon the following terms.


 


1、Definitions



Unless otherwise
provided herein, the terms below shall have the following meaning:


 


		1.1	Pledge: shall refer to the security interest granted by Pledgor to Pledgee pursuant to Article
2 of this Agreement, i.e. the right of Pledgee to be compensated on a preferential basis with the conversion, auction or sales
price of the Equity Interest.



		1.2	Equity Interest: shall refer to all of the equity interest lawfully now held and hereafter acquired
by Pledgor in Party C.



		1.3	Term of Pledge: shall refer to the term set forth in Section 3.2 of this Agreement.



		1.4	Business Cooperation Agreement: shall refer to the Exclusive Business Cooperation Agreement executed
by and between Party C and Pledgee as of the execution date of this Agreement.



		1.5	Event of Default: shall refer to any of the circumstances set forth in Article 7 of this Agreement.



		1.6	Notice of Default: shall refer to the notice issued by Pledgee in accordance with this Agreement
declaring an Event of Default.



 


2、The
Pledge 


As collateral
security for the timely and complete payment and performance when due (whether at stated maturity, by acceleration or otherwise)
of any or all of the payments due by Party C, including without limitation the consulting and services fees payable to the Pledgee
under the Business Cooperation Agreement, Pledgor hereby pledges to Pledgee a first security interest in all of Pledgor’s
right, title and interest, whether now owned or hereafter acquired by Pledgor, in the Equity Interest of Party C.


 


3、Term
of Pledge


		3.1	The Pledge shall become effective on such date when the pledge of the Equity Interest contemplated
herein has been registered with relevant administration for industry and commerce (the “AIC”). The Pledge shall be
continuously valid until all payments due under the Business Cooperation Agreement have been fulfilled by Party C. Pledgor and
Party C shall 1) register the Pledge in the shareholders’ register of Party C within 3 business days following the execution
of this Agreement, and 2) submit an application to the AIC for the registration of the Pledge of the Equity Interest contemplated
herein within three (3) months following the execution of this Agreement. The parties covenant that for the purpose of registration
of the Pledge, the parties hereto and all other shareholders of Party C shall submit to the AIC this Agreement or an equity interest
pledge contract in the form required by the AIC at the location of Party C which shall truly reflect the information of the Pledge
hereunder (the “AIC Pledge Contract”). For matters not specified in the AIC Pledge Contract, the Parties shall be bound
by the provisions of this Agreement. Pledgor and Party C shall submit all necessary documents and complete all necessary procedures,
as required by the PRC laws and regulations and the relevant AIC, to ensure that the Pledge of the Equity Interest shall registered
with the AIC as soon as possible after filing.



 




    	 	 	 



     


    

  


		3.2	During the Term of Pledge, in the event Party C fails to pay the exclusive consulting or service
fees in accordance with the Business Cooperation Agreement, Pledgee shall have the right, but not the obligation, to dispose of
the Pledge in accordance with the provisions of this Agreement.



 


4、Custody
of Records for Equity Interest subject to Pledge 


		4.1	During the Term of Pledge set forth in this Agreement, Pledgor shall deliver to Pledgee’s
custody the capital contribution certificate for the Equity Interest and the shareholders’ register containing the Pledge
within one week from the execution of this Agreement. Pledgee shall have custody of such items during the entire Term of Pledge
set forth in this Agreement.



		4.2	Pledgee shall have the right to collect dividends generated by the Equity Interest during the Term
of Pledge.



 


5、Representations
and Warranties of Pledgor 


		5.1	Pledgor is the sole legal and beneficial owner of the Equity Interest.



		5.2	Pedgee shall have the right to dispose of and transfer the Equity Interest in accordance with the
provisions set forth in this Agreement.



		5.3	Except for the Pledge, Pledgor has not placed any security interest or other encumbrance on the
Equity Interest.



 


6、Covenants
and Further Agreements of Pledgor 


		6.1	Pledgor hereby covenants to the Pledgee, that during the term of this Agreement, Plegor shall:



		6.1.1	not transfer the Equity Interest, place or permit the existence of any secutiry interest or other
encumbrance on the Equity Interest, without the prior written consent of Pledgee, except for the performance of the Exclusive Option
Agreement executed by Pledgor, the Pledgee and Party C on the execution date of this Agreement;



		6.1.2	comply with the provisions of all laws and regulations applicable to the pledge of rights, and
within 5 days of receipt of any notice, order or recommendation issued or prepared by relevant competent authorities regarding
the Pledge, shall present the aforementioned notice, order or recommendation to Pledgee, and shall comply with the aforementioned
notice, order or recommendation or submit objections and representations with respect to the aforementioned matters upon Pledgee’s
reasonable request or upon consent of Pledgee;



		6.1.3	promptly notify Pledgee of any event or notice received by Pledgor that may have an impact on Pledgee’s
rights to the Equity Interest or any portion thereof, as well as any event or notice received by Pledgor that may have an impact
on any guarantees and other obligations of Pledgor arising out of this Agreement.



 




    	 	 	 



     


    

  


		6.2	Pledgor agrees that the rights acquired by Pledgee in accordance with this Agreement with respect
to the Pledgee shall not be interrupted or harmed by Pledgor or any heirs or representatives of Pledgor or any other persons through
any legal proceedings.



		6.3	To protect or perfect the security interest granted by this Agreement for payment of the consulting
and service fees under the Business Cooperation Agreement, Plegor hereby undertakes to execute all certificates, agreements, deeds
and/or covenants required by Pledgee. Pledgor also undertakes to perform and to cause other parties who have an interest in the
Pledge to perform actions required by Pledgee, to facilitate the exercise by Pledgee of its rights and authority granted thereto
by this Agreement, and to enter into all relevant documents regarding ownership of Equity Interest with Pledgee or designee(s)
of Pledgee (natural persons/legal persons). Pledgor undertakes to provide Pledgee within a reasonable time with all notices, orders
and decisions regarding the Pledge that are required by Pledgee.



		6.4	Pledgor hereby undertakes to comply with and perform all guarantees, promises, agreements, representations
and conditions under this Agreement. In the event of failure or partial performance of its guarantees, promises, agreements, representations
and conditions, Pledgor shall indemnify Pledgee for all losses resulting therefrom.



		6.5	The Pledgor agrees that, during the term of this Agreement, any and all dividends obtained by the
Pledgor from Party C shall constitute fructus of the pledged Equity Interest. The Pledgee shall have the right to collect the dividends
on behalf of the Pledgor and such dividends shall constitute part of the Pledge and shall always be subject to the provisions under
this Agreement in connection with the Pledge. The Pledgor further agrees to pledge such dividends to the Pledgee in the manner
allowed by relevant laws and regulations and shall complete relevant registration procedures, if so required.



 


7、Event
of Breach 


		7.1	The following circumstances shall be deemed an Event of Default:



		7.1.1	Party C fails to fully and timely fulfill any liabilities under the Business Cooperation Agreement,
including without limitation failure to pay in full any of the consulting and service fees payable under the Business Cooperation
Agreement or breaches any other obligations of Party C thereunder;



		7.1.2	Pledgor or Party C has committed a material breach of any provisions of this Agreement;



		7.1.3	Except as expressly stipulated in Section 6.1.1, Pledgor transfers or purports to transfer or abandons
the Equity Interest pledged or assigns the Equity Interest pledged without the written consent of Pledgee; and



		7.1.4	The successor or custodian of Party C is capable of only partially perform or refuses to perform
the payment obligations under the Business Cooperation Agreement.



		7.2	Upon notice or discovery of the occurrence of any circumstances or event that may lead to the aforementioned
circumstances described in Section 7.1, Pledgor shall immediately notify Pledgee in writing accordingly.



		7.3	Unless an Event of Default set forth in this Section 7.1 has been successfully resolved to Pledgee’s
satisfaction within twenty (20) days after the Pledgee delivers a notice to the Pledgor requesting ratification of such Event of
Default, Pledgee may issue a Notice of Default to Pledgor in writing at any time thereafter, demanding the Pledgor to immediately
dispose of the Pledge in accordance with the provisions of Article 8 of this Agreement.



 




    	 	 	 



     


    

  


8、Exercise
of Pledge


		8.1	Prior to the full payment of the consulting and service fees described in the Business Cooperation
Agreement, without the Pledgee’s written consent, Pledgor shall not assign the Equity Interest in Party C.



		8.2	Pledgee may issue a Notice of Default to Pledgor when exercising the Pledge.



		8.3	Subject to the provisions of Section 7.3, Pledgee may exercise the right to enforce the Pledge
at any time after the issuance of the Notice of Default in accordance with Section 7.2.



		8.4	Pledgee is entitled to convert the Equity Interests of Party C hereunder, in whole or in part,
into money for offset or have priority in satisfying his claim from the proceeds of auction or sale thereof in accordance with
legal procedures, until the debts and all other liabilities of Party C under Business Cooperation Agreement are fully and completely
repaid.



		8.5	When Pledgee disposes of the Pledge in accordance with this Agreement, Pledgor and Party C shall
provide necessary assistance to enable Pledgee to enforce the Pledge in accordance with this Agreement.



 


9、Assignment


		9.1	Without Pledgee’s prior written consent, Pledgor shall not have the right to assign its rights
and obligations under this Agreement.



		9.2	This Agreement shall be binding on Pledgor and tis successors and permitted assigns, and shall
be valid with respect to Pledgee and each of its successors and assigns.



		9.3	At any time, Pledgee may assign any and all of its rights and obligations under the Business Cooperation
Agreement to its designee(s) (natural/legal persons), in which case the assigns shall have the rights and obligations of Pledgee
under this Agreement, as if it were the original party to this Agreement. When the Pledgee assigns the rights and obligations under
the Business Cooperation Agreement, upon Pledgee’s request, Pledgor shall execute relevant agreements or other documents
relating to such assignment.



		9.4	In the event of a change in Pledgee due to an assignment, Pledgor shall, at the request of Pledgee,
execute a new pledge agreement with the new pledgee on the same terms and conditions as this Agreement, and register the same with
the relevant AIC.



		9.5	Pledgor shall strictly abide by the provisions of this Agreement and other contracts jointly or
separately executed by the Parties hereto or any of them, including the Exclusive Option Agreement and the Power of Attorney granted
to Pledgee, perform the obligations hereunder and thereunder, and refrain from any action/omission that may affect the effectiveness
and enforceability thereof.



 




    	 	 	 



     


    

 


10、Termination



Upon the full
payment of the consulting and service fees under the Business Cooperation Agreement and upon termination of Party C’s obligations
under the Business Cooperation Agreement, this Agreement shall be terminated, and Pledgee shall then cancel or terminate this Agreement
as soon as reasonably practicable.


 


11、Handling
Fees and Other Expenses 


All fees and
out of pocket expenses relating to this Agreement, including but not limited to legal costs, costs of production, stamp tax and
any other taxes and fees, shall be borne by Party C.


 


12、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.


 


13、Governing
Law and Resolution of Disputes 


		13.1	The execution, effectiveness, construction, performance, amendment and termination of this Agreement
and the resolution of disputes hereunder shall be governed by the laws of China.



		13.2	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 South China International Economic and Trade Arbitration Commission for arbitration,
in accordance with its Arbitration Rules. The arbitration shall be conducted in Shenzhen, and the language used in arbitration
shall be Chinese. The arbitration award shall be final and binding on all Parties.



		13.3	Upon the occurrence of any disputes arising from the construction and performance of this Agreement
or during the pending arbitration of any dispute, except for the matters under dispute, the Parties to this Agreement shall continue
to exercise their respective rights under this Agreement and perform their respective rights under this Agreement and perform their
respective obligations under this Agreement.



 




    	 	 	 



     


    

  


14、Notices



		14.1	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 E-mail. The dates on which
notices shall be deemed to have been effectively given shall be determined as follows.



		14.2	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.



		14.3	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).



14.4For
the purpose of notices, the addresses of the Parties are as follows:


Party A: E-Sun
Sky Computer (Shenzhen) Co., Ltd


Address: Room
B01, Floor 8, Building 7B, Shenzhen Bay ecological science and Technology Park, Nanshan District, Shenzhen


 


Party B: Zhang
Han


Address: No.
1116, Lianhua Road, Futian District, Shenzhen


 


Party C: Shenzhen
E-Sun Network Co., Ltd.


Address: Room
1-C, Complex Building (including affiliated equipment room), Shenxianling Sports Center, Central City, Longgang District, Shenzhen


 


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



 


15、Severability



In the event
that one or several of the provisions of this Contract 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 Contract 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 provision 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.


 


16、Attachments



The attachments
set forth herein shall be an integral part of this Agreement.


 


17、Effectiveness



The Parties
have the requisite power and authority to enter into and perform this Agreement; the execution and delivery of, and performance
by any Party of its obligations under this Agreement have all been duly authorized and approved by such Party.


 




    	 	 	 



     


    

 


Any amendments,
changes and supplements to this Agreement shall be in writing and shall become effective upon completion of the governmental filing
procedures (if applicable) after the affixation of the signature or seals of the Parties.


This Agreement
is written in Chinese and English in three copies. Pledgor, Pledgee and Party C shall hold one copy respectively. Each copy of
this Agreement shall have equal validity. In case there is any conflict between the Chinese version and the English version, the
Chinese version shall prevail.


 


This page
was intentionally left blank.


 




    	 	 	 



     


    

 


IN WITNESS WHEREOF,
the Parties have caused their authorized representative to execute this Equity Interest Pledge Agreement as of the date first above
written.


 


	Party A: E-Sun Sky Computer (Shenzhen) Co., Ltd	 
	By: /s/Yu Bo	 
	Name: Yu Bo	 
	Title: Legal Representative 	 
	 	 
	Party B: Zhang Han	 
	By: /s/ Zhang Han	 
	 	 
	Party C: Shenzhen E-Sun Network Co., Ltd.	 
	By: /s/Yu Bo	 
	Name: Yu Bo	 
	Title: Legal Representative