FF301 Page 1 of 11 v 1.1.1 Monthly Return for Equity Issuer and Hong Kong Depositary Receipts listed under Chapter 19B of the Exchange Listing Rules on Movements in Securities For the month ended: 30 June 2025 Status: New Submission To : Hong Kong Exchanges and Clearing Limited Name of Issuer: Tuya Inc. (A company controlled through weighted voting rights and incorporated in the Cayman Islands with limited liability) Date Submitted: 07 July 2025 I. Movements in Authorised / Registered Share Capital 1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange (Note 1) Yes Stock code (if listed) 02391 Description Number of authorised/registered shares Par value Authorised/registered share capital Balance at close of preceding month 800,000,000 USD 0.00005 USD 40,000 Increase / decrease (-) USD Balance at close of the month 800,000,000 USD 0.00005 USD 40,000 2. Class of shares WVR ordinary shares Type of shares B Listed on the Exchange (Note 1) No Stock code (if listed) 02391 Description Number of authorised/registered shares Par value Authorised/registered share capital Balance at close of preceding month 200,000,000 USD 0.00005 USD 10,000 Increase / decrease (-) USD Balance at close of the month 200,000,000 USD 0.00005 USD 10,000 Total authorised/registered share capital at the end of the month: USD 50,000

FF301 Page 2 of 11 v 1.1.1 II. Movements in Issued Shares and/or Treasury Shares 1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange (Note 1) Yes Stock code (if listed) 02391 Description Number of issued shares (excluding treasury shares) Number of treasury shares Total number of issued shares Balance at close of preceding month 539,516,649 0 539,516,649 Increase / decrease (-) -162,976 Balance at close of the month 539,353,673 0 539,353,673 2. Class of shares WVR ordinary shares Type of shares B Listed on the Exchange (Note 1) No Stock code (if listed) 02391 Description Number of issued shares (excluding treasury shares) Number of treasury shares Total number of issued shares Balance at close of preceding month 70,205,300 0 70,205,300 Increase / decrease (-) -42,047 Balance at close of the month 70,163,253 0 70,163,253 Remarks: Opening and closing balances of Class A ordinary shares shown above include 1,773,768 and 1,561,393 Class A ordinary shares which are already issued and registered in the name of our depositary bank which are used to satisfy any future exercise or vesting of awards granted under the 2015 Equity Incentive Plan and 2024 Share Scheme, respectively.

FF301 Page 3 of 11 v 1.1.1 III. Details of Movements in Issued Shares and/or Treasury Shares (A). Share Options (under Share Option Schemes of the Issuer) 1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange (Note 1) Yes Stock code (if listed) 02391 Description Particulars of share option scheme Number of share options outstanding at close of preceding month Movement during the month Number of share options outstanding at close of the month Number of new shares issued during the month pursuant thereto (A1) Number of treasury shares transferred out of treasury during the month pursuant thereto (A2) Number of shares which may be issued or transferred out of treasury pursuant thereto as at close of the month The total number of shares which may be issued or transferred out of treasury upon exercise of all share options to be granted under the scheme at close of the month 1). 2015 Equity Incentive Plan (adopted in December 2014 and amended in June 2022, as amended from time to time) 5,626,967 Others -88,250 Lapsed -7,500 5,531,217 0 0 5,531,217 0 General Meeting approval date (if applicable) 2). 2024 Share Scheme (adopted in June 2024, as amended from time to time) 0 0 0 0 0 57,080,259 General Meeting approval date (if applicable) 20 June 2024 Increase in issued shares (excluding treasury shares): 0 WVR ordinary shares A (AA1) Decrease in treasury shares: 0 WVR ordinary shares A (AA2) Total funds raised during the month from exercise of options: USD 4.43 Remarks: 1) Others: -88,250 refers to 88,250 options being exercised. The exercise of 88,250 options was settled using the Class A ordinary shares already issued and registered in the name of our depositary bank which are used to satisfy any future exercise or vesting of awards granted under the 2015 Equity Incentive Plan. 2) The total number of shares which may be issued or transferred out of treasury pursuant to exercise of all options to be granted, and vesting of all restricted share units or awards to be granted under the 2024 Share Scheme as at the close of the month is 57,080,259.

FF301 Page 4 of 11 v 1.1.1 (B). Warrants to Issue Shares of the Issuer Not applicable

FF301 Page 5 of 11 v 1.1.1 (C). Convertibles (i.e. Convertible into Shares of the Issuer) Not applicable

FF301 Page 6 of 11 v 1.1.1 (D). Any other Agreements or Arrangements to Issue Shares of the Issuer, including Options (other than Share Option Schemes) 1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange (Note 1) Yes Stock code (if listed) 02391 Description Description of other agreements or arrangements General Meeting approval date (if applicable) Number of new shares issued during the month pursuant thereto (D1) Number of treasury shares transferred out of treasury during the month pursuant thereto (D2) Number of shares which may be issued or transferred out of treasury pursuant thereto as at close of the month 1). 2015 Equity Incentive Plan - Restricted Share Units (adopted in December 2014 and amended in June 2022, as amended from time to time) 18,750 0 3,913,250 2). 2015 Equity Incentive Plan - Restricted Shares (adopted in December 2014 and amended in June 2022, as amended from time to time) 0 0 0 3). 2024 Share Scheme - Restricted Share Units (adopted in June 2024, as amended from time to time) 20 June 2024 0 0 379,000 Increase in issued shares (excluding treasury shares): 18,750 WVR ordinary shares A (DD1) Decrease in treasury shares: 0 WVR ordinary shares A (DD2) Remarks: As of June 30, 2025, the restricted share units which entitle the holders to 3,913,250 Class A ordinary shares of the issuer upon vesting, have been granted under the 2015 Equity Incentive Plan. No restricted share units were granted under the 2015 Equity Incentive Plan during the month. 142,875 restricted share units under the 2015 Equity Incentive Plan were vested during the month, among which 124,125 restricted share units under the 2015 Equity Incentive Plan were settled using the Class A ordinary shares already issued and registered in the name of depositary bank. 76,250 restricted share units granted under the 2015 Equity Incentive Plan were lapsed during the month. As of June 30, 2025, the restricted share units which entitle the holders to 379,000 Class A ordinary shares of the issuer upon vesting, have been granted under the 2024 Share Scheme. No restricted share units were granted under the 2024 Share Scheme during the month. No restricted share units under the 2024 Share Scheme were vested during the month. No restricted share units granted under the 2024 Share Scheme were lapsed during the month.

FF301 Page 7 of 11 v 1.1.1 (E). Other Movements in Issued Shares and/or Treasury Shares 1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange (Note 1) Yes Stock code (if listed) 02391 Description Events At price (if applicable) Currency Amount Date of event (Note 2) General Meeting approval date (if applicable) Increase/ decrease (-) in issued shares (excluding treasury shares) during the month pursuant thereto (E1) Increase/ decrease (-) in treasury shares during the month pursuant thereto (E2) Number of shares redeemed or repurchased for cancellation but not yet cancelled as at close of the month (Note 3) 1). Repurchase of shares (shares repurchased and cancelled) 27 June 2025 20 June 2024 -223,773 2). Conversion of Class B ordinary shares to Class A ordinary shares 27 June 2025 42,047 2. Class of shares Ordinary shares Type of shares B Listed on the Exchange (Note 1) No Stock code (if listed) 02391 Description Events At price (if applicable) Currency Amount Date of event (Note 2) General Meeting approval date (if applicable) Increase/ decrease (-) in issued shares (excluding treasury shares) during the month pursuant thereto (E1) Increase/ decrease (-) in treasury shares during the month pursuant thereto (E2) Number of shares redeemed or repurchased for cancellation but not yet cancelled as at close of the month (Note 3) 1). Conversion of Class B ordinary shares to Class A ordinary shares 27 June 2025 -42,047 Increase/ decrease (-) in issued shares (excluding treasury shares): -181,726 WVR ordinary shares A (EE1) Increase/ decrease (-) in issued shares (excluding treasury shares): -42,047 Ordinary shares B (EE1) Increase/ decrease (-) in treasury shares: WVR ordinary shares A (EE2) Increase/ decrease (-) in treasury shares: Ordinary shares B (EE2) Remarks: Class A: 1) Repurchase of a total of 223,773 Class A ordinary shares represented by ADSs were made on June 26 to 28, 2024 on New York Stock Exchange and cancelled at June 27, 2025. Class A: 2) & Class B: 1) Subsequent to the cancellation of the repurchased 223,773 Class A ordinary shares on June 26 to 28, 2024, 42,047 Class B ordinary shares were converted to Class A ordinary shares on a one-to-one ratio pursuant to Rule 8A.21 of the Listing Rules. Total increase/ decrease (-) in issued shares (excluding treasury shares) during the month (i.e. Total of AA1 to EE1): -162,976 WVR ordinary shares A

FF301 Page 8 of 11 v 1.1.1 Total increase/ decrease (-) in issued shares (excluding treasury shares) during the month (i.e. Total of AA1 to EE1): -42,047 Ordinary shares B Total increase/ decrease (-) in treasury shares during the month (i.e. Total of AA2 to EE2): 0 WVR ordinary shares A Total increase/ decrease (-) in treasury shares during the month (i.e. Total of AA2 to EE2): Ordinary shares B

FF301 Page 9 of 11 v 1.1.1 IV. Information about Hong Kong Depositary Receipt (HDR) Not applicable

FF301 Page 10 of 11 v 1.1.1 V. Confirmations Pursuant to Main Board Rule 13.25C / GEM Rule 17.27C, we hereby confirm to the best knowledge, information and belief that, in relation to each of the securities issued, or the treasury shares sold or transferred by the issuer during the month as set out in Parts III and IV which has not been previously disclosed in a return published under Main Board Rule 13.25A / GEM Rule 17.27A, it has been duly authorised by the board of directors of the listed issuer and carried out in compliance with all applicable listing rules, laws and other regulatory requirements and, insofar as applicable: (Note 4) (i) all money due to the listed issuer in respect of the issue of securities, or sale or transfer of treasury shares has been received by it; (ii) all pre-conditions for listing imposed by the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited under "Qualifications of listing" have been fulfilled; (iii) all (if any) conditions contained in the formal letter granting listing of and permission to deal in the securities have been fulfilled; (iv) all the securities of each class are in all respects identical (Note 5); (v) all documents required by the Companies (Winding Up and Miscellaneous Provisions) Ordinance to be filed with the Registrar of Companies have been duly filed and that compliance has been made with all other legal requirements; (vi) all the definitive documents of title have been delivered/are ready to be delivered/are being prepared and will be delivered in accordance with the terms of issue, sale or transfer; (vii) completion has taken place of the purchase by the issuer of all property shown in the listing document to have been purchased or agreed to be purchased by it and the purchase consideration for all such property has been duly satisfied; and (viii) the trust deed/deed poll relating to the debenture, loan stock, notes or bonds has been completed and executed, and particulars thereof, if so required by law, have been filed with the Registrar of Companies. Submitted by: Chai Xiaolang Title: Joint Company Secretary (Director, Secretary or other Duly Authorised Officer)

FF301 Page 11 of 11 v 1.1.1 Notes 1. The Exchange refers to The Stock Exchange of Hong Kong Limited. 2. In the case of repurchase of shares (shares repurchased and cancelled) and redemption of shares (shares redeemed and cancelled), "date of event" should be construed as "cancellation date". In the case of repurchase of shares (shares held as treasury shares), "date of event" should be construed as "date on which shares were repurchased and held by the issuer in treasury". 3. The information is required in the case of repurchase of shares (shares repurchased for cancellation but not yet cancelled) and redemption of shares (shares redeemed but not yet cancelled). Please state the number of shares repurchased or redeemed during the month or in preceding month(s) but pending cancellation as at close of the month as a negative number. 4. Items (i) to (viii) are suggested forms of confirmation. The listed issuer may amend the item(s) that is/are not applicable to meet individual cases. Where the issuer has already made the relevant confirmations in a return published under Main Board Rule 13.25A / GEM Rule 17.27A in relation to the securities issued, or the treasury shares sold or transferred, no further confirmation is required to be made in this return. 5. “Identical” means in this context: ． the securities are of the same nominal value with the same amount called up or paid up; ． they are entitled to dividend/interest at the same rate and for the same period, so that at the next ensuing distribution, the dividend/interest payable per unit will amount to exactly the same sum (gross and net); and ． they carry the same rights as to unrestricted transfer, attendance and voting at meetings and rank pari passu in all other respects.

FF305 Page 1 of 5 v 1.3.0 Next Day Disclosure Return (Equity issuer - changes in issued shares or treasury shares, share buybacks and/or on-market sales of treasury shares) Instrument: Equity issuer Status: New Submission Name of Issuer: Tuya Inc. Date Submitted: 27 June 2025 Section I must be completed by a listed issuer where there has been a change in its issued shares or treasury shares which is discloseable pursuant to rule 13.25A of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Exchange”) (the “Main Board Rules”) or rule 17.27A of the Rules Governing the Listing of Securities on GEM of the Exchange (the “GEM Rules”). Section I 1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange Yes Stock code (if listed) 02391 Description A. Changes in issued shares or treasury shares Changes in issued shares Changes in treasury (excluding treasury shares) shares Events Number of issued shares (excluding treasury shares) As a % of existing number of issued shares (excluding treasury shares) before the relevant event Number of treasury shares Issue/ selling price per share (Note 4) Total number of issued shares (Note 3) Opening balance as at (Note 1) 31 May 2025 539,516,649 0 539,516,649 1). Issue of new shares or transfer of treasury shares in respect of share awards or options granted to a participant (who is not a director of the issuer) under a share scheme - new shares involved Exercise of options and restricted share units by employees (other than directors) pursuant to the 2015 Equity Incentive Plan Date of changes 27 June 2025 18,750 0.0031 % USD 0.00005 Closing balance as at (Notes 5 and 6) 27 June 2025 539,535,399 0 539,535,399

FF305 Page 2 of 5 v 1.3.0 B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6) 1). Repurchase of shares (or other securities) but not cancelled Date of changes 26 June 2024 76,008 % USD 1.714 2). Repurchase of shares (or other securities) but not cancelled Date of changes 27 June 2024 73,190 % USD 1.6977 3). Repurchase of shares (or other securities) but not cancelled Date of changes 28 June 2024 74,575 % USD 1.7001 Remarks: Issued shares as a % of existing number of issued shares before relevant share issue calculated based on the Company's total number of issued shares of 609,740,699 shares (comprising 539,535,399 Class A ordinary shares and 70,205,300 Class B ordinary shares).

FF305 Page 3 of 5 v 1.3.0 Confirmation Not applicable Notes to Section I: 1. Please insert the closing balance date of the last Next Day Disclosure Return published pursuant to Main Board Rule 13.25A / GEM Rule 17.27A or Monthly Return pursuant to Main Board Rule 13.25B / GEM Rule 17.27B, whichever is the later. 2. Please set out all changes in issued shares or treasury shares requiring disclosure pursuant to Main Board Rule 13.25A / GEM Rule 17.27A together with the relevant dates of changes. Each category will need to be disclosed individually with sufficient information to enable the user to identify the relevant category in the listed issuer's Monthly Return. For example, multiple issues of shares as a result of multiple exercises of share options under the same share option scheme or of multiple conversions under the same convertible note must be aggregated and disclosed as one category. However, if the issues resulted from exercises of share options under 2 share option schemes or conversions of 2 convertible notes, these must be disclosed as 2 separate categories. 3. The percentage change in the number of issued shares (excluding treasury shares) of the listed issuer is to be calculated by reference to the opening balance of the number of issued shares (excluding treasury shares) being disclosed in this Next Day Disclosure Return. 4. In the case of a share repurchase or redemption, the “issue/ selling price per share” shall be construed as “repurchase price per share” or “redemption price per share”. Where shares have been issued/ sold/ repurchased/ redeemed at more than one price per share, a volume-weighted average price per share should be given. 5. The closing balance date is the date of the last relevant event being disclosed. 6. For repurchase or redemption of shares, disclosure is required when the relevant event has occurred (subject to the provisions of Main Board Rules 10.06(4)(a), 13.25A and 13.31 / GEM Rules 13.13(1), 17.27A and 17.35), even if the repurchased or redeemed shares have not yet been cancelled. If repurchased or redeemed shares are to be cancelled upon settlement of such repurchase or redemption after the closing balance date, they shall remain part of the issued shares as at the closing balance date in Part A. Details of these repurchased or redeemed shares shall be disclosed in Part B. 7. Items (i) to (viii) are suggested forms of confirmation. The listed issuer may amend the item(s) that is/are not applicable to meet individual cases. 8. “Identical” means in this context: - the securities are of the same nominal value with the same amount called up or paid up; - they are entitled to dividend/interest at the same rate and for the same period, so that at the next ensuing distribution, the dividend/interest payable per unit will amount to exactly the same sum (gross and net); and - they carry the same rights as to unrestricted transfer, attendance and voting at meetings and rank pari passu in all other respects.

FF305 Page 4 of 5 v 1.3.0 Section II must also be completed by a listed issuer where it has made a repurchase of shares which is discloseable under Main Board Rule 10.06(4)(a) / GEM Rule 13.13(1). Repurchase report Not applicable

FF305 Page 5 of 5 v 1.3.0 Section III must also be completed by a listed issuer where it has made a sale of treasury shares on the Exchange or any other stock exchange on which the issuer is listed which is discloseable under Main Board Rule 10.06B / GEM Rule 13.14B. Report of on-market sale of treasury shares Not applicable Submitted by: Chai Xiaolang (Name) Title: Joint Company Secretary (Director, Secretary or other Duly Authorised Officer)

FF305 Page 1 of 5 v 1.3.0 Next Day Disclosure Return (Equity issuer - changes in issued shares or treasury shares, share buybacks and/or on-market sales of treasury shares) Instrument: Equity issuer Status: New Submission Name of Issuer: Tuya Inc. Date Submitted: 30 June 2025 Section I must be completed by a listed issuer where there has been a change in its issued shares or treasury shares which is discloseable pursuant to rule 13.25A of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Exchange”) (the “Main Board Rules”) or rule 17.27A of the Rules Governing the Listing of Securities on GEM of the Exchange (the “GEM Rules”). Section I 1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange Yes Stock code (if listed) 02391 Description A. Changes in issued shares or treasury shares Changes in issued shares Changes in treasury (excluding treasury shares) shares Events Number of issued shares (excluding treasury shares) As a % of existing number of issued shares (excluding treasury shares) before the relevant event Number of treasury shares Issue/ selling price per share (Note 4) Total number of issued shares (Note 3) Opening balance as at (Note 1) 27 June 2025 539,535,399 0 539,535,399 1). Repurchase of shares (shares repurchased and cancelled) Shares repurchased on June 26 to 28, 2024 and cancelled on June 27, 2025 Date of changes 27 June 2025 -223,773 0.0367 % USD 0.00005

FF305 Page 2 of 5 v 1.3.0 2). Other (please specify) Conversion of Class B ordinary shares to Class A ordinary share Date of changes 27 June 2025 42,047 % Closing balance as at (Notes 5 and 6) 27 June 2025 539,353,673 0 539,353,673 B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6) Not applicable 2. Class of shares WVR ordinary shares Type of shares B Listed on the Exchange No Stock code (if listed) 02391 Description A. Changes in issued shares or treasury shares Events Changes in issued shares (excluding treasury shares) Changes in treasury shares Issue/ selling price per share (Note 4) Total number of issued Number of issued shares shares (excluding treasury shares) As a % of existing number of issued shares (excluding treasury shares) before the relevant event (Note 3) Number of treasury shares Opening balance as at (Note 1) 27 June 2025 70,205,300 0 70,205,300 1). Other (please specify) Conversion of Class B ordinary shares to Class A ordinary share Date of changes 27 June 2025 -42,047 % Closing balance as at (Notes 5 and 6) 27 June 2025 70,163,253 0 70,163,253 B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6) Not applicable

FF305 Page 3 of 5 v 1.3.0 Confirmation Not applicable Notes to Section I: 1. Please insert the closing balance date of the last Next Day Disclosure Return published pursuant to Main Board Rule 13.25A / GEM Rule 17.27A or Monthly Return pursuant to Main Board Rule 13.25B / GEM Rule 17.27B, whichever is the later. 2. Please set out all changes in issued shares or treasury shares requiring disclosure pursuant to Main Board Rule 13.25A / GEM Rule 17.27A together with the relevant dates of changes. Each category will need to be disclosed individually with sufficient information to enable the user to identify the relevant category in the listed issuer's Monthly Return. For example, multiple issues of shares as a result of multiple exercises of share options under the same share option scheme or of multiple conversions under the same convertible note must be aggregated and disclosed as one category. However, if the issues resulted from exercises of share options under 2 share option schemes or conversions of 2 convertible notes, these must be disclosed as 2 separate categories. 3. The percentage change in the number of issued shares (excluding treasury shares) of the listed issuer is to be calculated by reference to the opening balance of the number of issued shares (excluding treasury shares) being disclosed in this Next Day Disclosure Return. 4. In the case of a share repurchase or redemption, the “issue/ selling price per share” shall be construed as “repurchase price per share” or “redemption price per share”. Where shares have been issued/ sold/ repurchased/ redeemed at more than one price per share, a volume-weighted average price per share should be given. 5. The closing balance date is the date of the last relevant event being disclosed. 6. For repurchase or redemption of shares, disclosure is required when the relevant event has occurred (subject to the provisions of Main Board Rules 10.06(4)(a), 13.25A and 13.31 / GEM Rules 13.13(1), 17.27A and 17.35), even if the repurchased or redeemed shares have not yet been cancelled. If repurchased or redeemed shares are to be cancelled upon settlement of such repurchase or redemption after the closing balance date, they shall remain part of the issued shares as at the closing balance date in Part A. Details of these repurchased or redeemed shares shall be disclosed in Part B. 7. Items (i) to (viii) are suggested forms of confirmation. The listed issuer may amend the item(s) that is/are not applicable to meet individual cases. 8. “Identical” means in this context: - the securities are of the same nominal value with the same amount called up or paid up; - they are entitled to dividend/interest at the same rate and for the same period, so that at the next ensuing distribution, the dividend/interest payable per unit will amount to exactly the same sum (gross and net); and - they carry the same rights as to unrestricted transfer, attendance and voting at meetings and rank pari passu in all other respects.

FF305 Page 4 of 5 v 1.3.0 Section II must also be completed by a listed issuer where it has made a repurchase of shares which is discloseable under Main Board Rule 10.06(4)(a) / GEM Rule 13.13(1). Repurchase report Not applicable

FF305 Page 5 of 5 v 1.3.0 Section III must also be completed by a listed issuer where it has made a sale of treasury shares on the Exchange or any other stock exchange on which the issuer is listed which is discloseable under Main Board Rule 10.06B / GEM Rule 13.14B. Report of on-market sale of treasury shares Not applicable Submitted by: Chai Xiaolang (Name) Title: Joint Company Secretary (Director, Secretary or other Duly Authorised Officer)