Document:

EX-10.18

 Exhibit 10.18 

Power of Attorney 
 I,
Xueji WANG, a People’s Republic of China (“China” or the “PRC”) citizen with PRC Identification Card No.: 330329198208082511, and a holder of 60.69% of the entire registered capital in Hangzhou Tuya Technology Co., Ltd.,
Ltd. (“Hangzhou Tuya”) as of the date when the Power of Attorney is executed, hereby irrevocably authorize Hangzhou Tuya Information Technology Co., Ltd. (“WFOE”) to exercise the following rights relating to all equity interests
held by me now and in the future in Hangzhou Tuya (“My Shareholding”) during the term of this Power of Attorney: 
 The WFOE is
hereby authorized to act on my behalf as my exclusive agent and attorney with respect to all matters concerning My Shareholding, including but not limited to: 1) attending shareholders’ meetings of Hangzhou Tuya; 2) exercising all the
shareholder’s rights and shareholder’s voting rights that I am entitled to under the relevant PRC laws and Hangzhou Tuya’s Articles of Association, including but not limited to the sale, transfer, pledge, or disposition of My
Shareholding in part or in whole; and 3) designating and appointing on my behalf the legal representative, directors, supervisors, chief executive officer, and other senior management members of Hangzhou Tuya. 

Without limiting the generality of the powers granted hereunder, the WFOE shall have the power and authority to, on my behalf, execute all the
documents I shall sign as stipulated in the Amended and Restated Exclusive Option Agreement entered into by and among myself, the WFOE, and Hangzhou Tuya on 23 August 2019 and the Amended and Restated Equity Pledge Agreement entered into by and
among me, the WFOE, and Hangzhou Tuya on 23 August 2019 (including any modifications, amendments, and restatements thereto, collectively referred to as the “Transaction Documents”), and perform the terms of the Transaction Documents. 

All the actions associated with My Shareholding conducted by the WFOE shall be deemed as my own actions, and all the documents related to My
Shareholding executed by the WFOE shall be deemed as executed by me. I hereby acknowledge and ratify those actions and/or documents by the WFOE. 

 The WFOE is entitled to re-authorize or assign its rights related to the aforesaid matters
to any other person or entity at its own discretion and without giving prior notice to me or obtaining my consent. If required by PRC laws, the WFOE shall designate a PRC citizen to exercise the aforementioned rights. 

During the period that I am a shareholder of Hangzhou Tuya, this Power of Attorney shall be irrevocable and continuously effective and valid
from the date of execution of this Power of Attorney. 
 During the term of this Power of Attorney, I hereby waive all the rights associated
with My Shareholding, which have been authorized to the WFOE through this Power of Attorney, and shall not exercise such rights by myself. 

This Power of Attorney is the complete and exclusive understanding and agreement between the parties regarding the subject matter hereof and
supersedes that certain Power of Attorney between the parties dated as of December 23, 2014. 
 This Power of Attorney is written in Chinese
and English. The Chinese version and English version shall have equal legal validity. 

 IN WITNESS WHEREOF, the Party has executed this Power of Attorney. 

 

			
	Xueji WANG
		
	By:	 	 /s/ Xueji WANG

	Date:	 	 August 23, 2019

			
	Accepted by:
	
	Hangzhou Tuya Information Technology Co., Ltd.
		
	By:	 	 /s/ Liaohan CHEN

	Name:	 	Liaohan CHEN
	Title:	 	Legal RepresentativeEX-10.19

 Exhibit 10.19 

Power of Attorney 
 I,
Yaona LIN, a People’s Republic of China (“China” or the “PRC”) citizen with PRC Identification Card No.: 330327198303300959, and a holder of 11.47% of the entire registered capital in Hangzhou Tuya Technology Co., Ltd., Ltd.
(“Hangzhou Tuya”) as of the date when the Power of Attorney is executed, hereby irrevocably authorize Hangzhou Aixiangji Technology Co., Ltd. (“WFOE”) to exercise the following rights relating to all equity interests held by me
now and in the future in Hangzhou Tuya (“My Shareholding”) during the term of this Power of Attorney: 
 The WFOE is hereby
authorized to act on my behalf as my exclusive agent and attorney with respect to all matters concerning My Shareholding, including but not limited to: 1) attending shareholders’ meetings of Hangzhou Tuya; 2) exercising all the
shareholder’s rights and shareholder’s voting rights that I am entitled to under the relevant PRC laws and Hangzhou Tuya’s Articles of Association, including but not limited to the sale, transfer, pledge, or disposition of My
Shareholding in part or in whole; and 3) designating and appointing on my behalf the legal representative, directors, supervisors, chief executive officer, and other senior management members of Hangzhou Tuya. 

Without limiting the generality of the powers granted hereunder, the WFOE shall have the power and authority to, on my behalf, execute all the
documents I shall sign as stipulated in the Exclusive Option Agreement entered into by and among myself, the WFOE, and Hangzhou Tuya on December 23, 2014 and the Equity Pledge Agreement entered into by and among me, the WFOE, and Hangzhou Tuya on
December 23, 2014 (including any modifications, amendments, and restatements thereto, collectively referred to as the “Transaction Documents”), and perform the terms of the Transaction Documents. 

All the actions associated with My Shareholding conducted by the WFOE shall be deemed as my own actions, and all the documents related to My
Shareholding executed by the WFOE shall be deemed as executed by me. I hereby acknowledge and ratify those actions and/or documents by the WFOE. 

  
 1 

Strictly Confidential 

 The WFOE is entitled to re-authorize or assign its
rights related to the aforesaid matters to any other person or entity at its own discretion and without giving prior notice to me or obtaining my consent. If required by PRC laws, the WFOE shall designate a PRC citizen to exercise the aforementioned
rights. 
 During the period that I am a shareholder of Hangzhou Tuya, this Power of Attorney shall be irrevocable and continuously
effective and valid from the date of execution of this Power of Attorney. 
 During the term of this Power of Attorney, I hereby waive all
the rights associated with My Shareholding, which have been authorized to the WFOE through this Power of Attorney, and shall not exercise such rights by myself. 

This Power of Attorney is written in Chinese and English. The Chinese version and English version shall have equal legal validity. 

  
 2 

Strictly Confidential 

 IN WITNESS WHEREOF, the Party has executed this Power of Attorney. 

 

			
	Yaona LIN
		
	By:	 	 /s/ Yaona LIN

	Date:	 	 December 23, 2014

  
 3 

Strictly Confidential 

			
	Accepted by:
	
	Hangzhou Aixiangji Technology Co. Ltd.
		
	By:	 	 /s/ Liaohan CHEN

	Name:	 	Liaohan CHEN
	Title:	 	Legal Representative

  
 4 

Strictly ConfidentialEX-10.20

 Exhibit 10.20 

Spousal Consent 
 The
undersigned, Hong CAO, a People’s Republic of China (“China” or the “PRC”) citizen with PRC Identification Card No.: 330419198211234822, is the lawful spouse of Liaohan CHEN, a PRC citizen with PRC Identification Card No.:
330621198211048053. I hereby unconditionally and irrevocably agree to the execution of the following documents (hereinafter referred to as the “Transaction Documents”) by Liaohan CHEN on December 23, 2014, and the disposal of
the equity interests of Hangzhou Tuya Technology Co., Ltd. (“Hangzhou Tuya”) held by Liaohan CHEN and registered in his/her name according to the following documents: 

 

	 	(1)	 The Equity Interest Pledge Agreement entered into with Hangzhou Aixiangji Technology Co., Ltd. (hereinafter
referred to as the “WFOE”) and Hangzhou Tuya; 

  

	 	(2)	 The Exclusive Option Agreement entered into with the WFOE and Hangzhou Tuya; and 

 

	 	(3)	 The Power of Attorney executed by Liaohan CHEN. 

I hereby undertake not to make any assertions in connection with the equity interests of Hangzhou Tuya which are held by Liaohan CHEN. I
hereby further confirm that Liaohan CHEN can perform the Transaction Documents and further amend or terminate the Transaction Documents without the authorization or consent from me. 

I hereby undertake to execute all necessary documents and take all necessary actions to ensure appropriate performance of the Transaction
Documents (as may be amended from time to time). 

 I hereby agree and undertake that if I obtain any equity interests of Hangzhou Tuya which
are held by Liaohan CHEN for any reasons, I shall be bound by the Transaction Documents and the Exclusive Business Cooperation Agreement entered into between the WFOE and Hangzhou Tuya as of December 23, 2014 (the “Exclusive
Business Cooperation Agreement”) (as may be amended from time to time) and comply with the obligations thereunder as a shareholder of Hangzhou Tuya. For this purpose, upon the WFOE’s request, I shall sign a series of written documents
in substantially the same format and content as the Transaction Documents and the Exclusive Business Cooperation Agreement (as may be amended from time to time). 

 Hereby Confirm. 

 

			
		 	/s/ Hong CAO
	Name:	 	Hong CAO
	Date:	 	 December 23, 2014EX-10.21

 Exhibit 10.21 

Spousal Consent 
 The
undersigned, Xiaolei WU, a People’s Republic of China (“China” or the “PRC”) citizen with PRC Identification Card No.: 410103198311161926, is the lawful spouse of Peihong CHEN, a PRC citizen with PRC Identification Card No.:
450502198203040310. I hereby unconditionally and irrevocably agree to the execution of the following documents (hereinafter referred to as the “Transaction Documents”) by Peihong CHEN on December 23, 2014, and the
disposal of the equity interests of Hangzhou Tuya Technology Co., Ltd. (“Hangzhou Tuya”) held by Peihong CHEN and registered in his/her name according to the following documents: 

 

	 	(1)	 The Equity Interest Pledge Agreement entered into with Hangzhou Aixiangji Technology Co., Ltd. (hereinafter
referred to as the “WFOE”) and Hangzhou Tuya; 

  

	 	(2)	 The Exclusive Option Agreement entered into with the WFOE and Hangzhou Tuya; and 

 

	 	(3)	 The Power of Attorney executed by Peihong CHEN. 

I hereby undertake not to make any assertions in connection with the equity interests of Hangzhou Tuya which are held by Peihong CHEN. I
hereby further confirm that Peihong CHEN can perform the Transaction Documents and further amend or terminate the Transaction Documents without the authorization or consent from me. 

I hereby undertake to execute all necessary documents and take all necessary actions to ensure appropriate performance of the Transaction
Documents (as may be amended from time to time). 

 I hereby agree and undertake that if I obtain any equity interests of Hangzhou Tuya which
are held by Peihong CHEN for any reasons, I shall be bound by the Transaction Documents and the Exclusive Business Cooperation Agreement entered into between the WFOE and Hangzhou Tuya as of December 23, 2014 (the “Exclusive
Business Cooperation Agreement”) (as may be amended from time to time) and comply with the obligations thereunder as a shareholder of Hangzhou Tuya. For this purpose, upon the WFOE’s request, I shall sign a series of written documents
in substantially the same format and content as the Transaction Documents and the Exclusive Business Cooperation Agreement (as may be amended from time to time). 

 Hereby Confirm. 

 

			
		 	/s/ Xiaolei WU
	Name:	 	Xiaolei WU
	Date:	 	 December 23, 2014

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