FF305Page 1 of 7 v 1.3.0Next 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 SubmissionName of Issuer: Zhihu Inc.Date Submitted: 06 January 2026Section 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 I1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Changes in issued shares or treasury sharesEventsChanges in issued shares (excluding treasury shares) Number of issued shares (excluding treasury shares)As a % of existing number of issued shares (excluding treasury shares) before the relevant event (Note 3)Changes in treasury sharesNumber of treasury sharesIssue/ selling price per share (Note 4)Total number of issued sharesOpening balance as at (Note 1) 02 January 2026 254,416,106 0 254,416,1061). Other (please specify)See Part BDate of changes 05 January 2026%Closing balance as at (Notes 5 and 6) 05 January 2026 254,416,106 0 254,416,106

FF305Page 2 of 7 v 1.3.0B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6) 1). Shares repurchased for cancellation but not yet canceledDate of changes 02 January 202699,000 0.037 % USD 1.1232). Shares repurchased for cancellation but not yet canceledDate of changes 05 January 202699,000 0.037 % USD 1.1328Remarks: 33,000 ADS were repurchased on the New York Stock Exchange on January 5, 2026 (U.S. time) at US$3.3985 per ADS. Each ADS represents three class A ordinary shares. The percentage as stated in the above "Changes in issued shares (excluding treasury shares) as a % of existing number of issued shares (excluding treasury shares) before the relevant event" column was calculated based on the Company's issued shares of 269,862,884 (comprising 254,416,106 Class A ordinary shares and 15,446,778 Class B ordinary shares).

FF305Page 3 of 7 v 1.3.0ConfirmationPursuant 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 issue of shares or sale or transfer of treasury shares as set out in Section I, 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 7) (i) all money due to the listed issuer in respect of the issue of shares, or sale or transfer of treasury shares has been received by it; (ii) all pre-conditions for the listing imposed by the Main Board Rules / GEM Rules 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 8); (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.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.

FF305Page 4 of 7 v 1.3.04. 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.

FF305Page 5 of 7 v 1.3.0Section 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 reportSection II1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Repurchase reportTrading date Number of shares repurchasedMethod of repurchase (Note 1)Repurchase price per share or highest repurchase price per share $Lowest repurchase price per share $ Aggregate price paid $1). 05 January 2026 99,000 On another stock exchangeNew York Stock ExchangeUSD 1.1533 USD 1.1033 USD 112,150.915Total number of shares repurchased 99,000 Aggregate price paid $ USD 112,150.915Number of shares repurchased for cancellation99,000Number of shares repurchased for holding as treasury shares0B. Additional information for issuer who has a primary listing on the Exchange1). Date of the resolution granting the repurchase mandate 25 June 20252). Total number of shares which the issuer is authorised to repurchase under the repurchase mandate 26,300,4293). Number of shares repurchased on the Exchange or another stock exchange under the repurchase mandate (a) 198,0004). As a % of number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate (a) x 100 / number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate0.075 %5). Moratorium period for any issue of new shares, or sale or transfer of treasury shares after the share repurchase(s) set out in Part A (Note 2)Up to 04 February 2026

FF305Page 6 of 7 v 1.3.0We hereby confirm that the repurchases made on another stock exchange set out in Part A above were made in accordance with the Main Board Rules and that there have been no material changes to the particulars contained in the Explanatory Statement dated May 29, 2025, which has been filed with the Exchange. We also confirm that any repurchases made on another stock exchange set out in Part A above were made in accordance with the domestic rules applying to repurchases on that other stock exchange.Notes to Section II: 1. Please state whether the repurchase was made on the Exchange, on another stock exchange (stating the name of the exchange), by private arrangement or by general offer. 2. Subject to the carve-out set out in Main Board Rule 10.06(3)(a)/ GEM Rule 13.12, an issuer may not (i) make a new issue of shares, or a sale or transfer of any treasury shares; or (ii) announce a proposed new issue of shares, or a sale or transfer of any treasury shares, for a period of 30 days after any purchase by it of shares, whether on the Exchange or otherwise, without the prior approval of the Exchange.

FF305Page 7 of 7 v 1.3.0Section 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 applicableSubmitted by: Lau Yee Wa(Name) Title: Company Secretary(Director, Secretary or other Duly Authorised Officer)

FF301Page 1 of 10 v 1.1.1Monthly 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: 31 December 2025 Status: New SubmissionTo : Hong Kong Exchanges and Clearing LimitedName of Issuer: Zhihu Inc.Date Submitted: 07 January 2026I. Movements in Authorised / Registered Share Capital1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange (Note 1) YesStock code (if listed) 02390 DescriptionNumber of authorised/registered shares Par value Authorised/registered share capitalBalance at close of preceding month 1,550,000,000 USD 0.000125 USD 193,750Increase / decrease (-) 0 USDBalance at close of the month 1,550,000,000 USD 0.000125 USD 193,7502. Class of shares WVR ordinary shares Type of shares B Listed on the Exchange (Note 1) NoStock code (if listed) 02390 DescriptionNumber of authorised/registered shares Par value Authorised/registered share capitalBalance at close of preceding month 50,000,000 USD 0.000125 USD 6,250Increase / decrease (-) 0 USDBalance at close of the month 50,000,000 USD 0.000125 USD 6,250Total authorised/registered share capital at the end of the month: USD 200,000

FF301Page 2 of 10 v 1.1.1II. Movements in Issued Shares and/or Treasury Shares1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange (Note 1) YesStock code (if listed) 02390 DescriptionNumber of issued shares (excluding treasury shares) Number of treasury shares Total number of issued sharesBalance at close of preceding month 254,416,106 0 254,416,106Increase / decrease (-) 0 0Balance at close of the month 254,416,106 0 254,416,1062. Class of shares WVR ordinary shares Type of shares B Listed on the Exchange (Note 1) NoStock code (if listed) 02390 DescriptionNumber of issued shares (excluding treasury shares) Number of treasury shares Total number of issued sharesBalance at close of preceding month 15,446,778 0 15,446,778Increase / decrease (-) 0 0Balance at close of the month 15,446,778 0 15,446,778Remarks:Opening and closing balances of Class A ordinary shares shown above are of the Class A ordinary shares issued as fully paid or credited to be fully paid. Opening and closing balances of Class A ordinary shares that are issued and outstanding (i.e. exclusive of the Class A ordinary shares issued to the Depositary for bulk issuance of ADSs reserved for future issuances upon the exercise or vesting of awards granted under the Share Incentive Plans ("Bulk Issuance Shares")) are 248,940,233 and 249,007,733 respectively.

FF301Page 3 of 10 v 1.1.1III. 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) YesStock code (if listed) 02390 DescriptionParticulars of share option schemeNumber of share options outstanding at close of preceding monthMovement during the monthNumber of share options outstanding at close of the monthNumber 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 monthThe 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 month1). 2012 Plan (Share incentive plan adopted in June 2012 as amended from time to time)772,741 772,741 772,741 0General Meeting approval date (if applicable)2). 2022 Plan (Share incentive plan adopted on March 30, 2022 as amended from time to time) 0 0 0 0 0 13,042,731General Meeting approval date (if applicable)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 0

FF301Page 4 of 10 v 1.1.1(B). Warrants to Issue Shares of the Issuer Not applicable

FF301Page 5 of 10 v 1.1.1(C). Convertibles (i.e. Convertible into Shares of the Issuer) Not applicable

FF301Page 6 of 10 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) YesStock code (if listed) 02390 DescriptionDescription of other agreements or arrangementsGeneral 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 month1). 2012 Plan - Restricted Shares (Share incentive plan adopted in June 2012 as amended from time to time) 0 0 2,5002). 2022 Plan - Restricted Share Unit (Share incentive plan adopted on March 30, 2022 as amended from time to time) 0 0 10,038,493Increase in issued shares (excluding treasury shares): 0 WVR ordinary shares A (DD1)Decrease in treasury shares: 0 WVR ordinary shares A (DD2)Remarks:As of 31 December 2025, (i) 2,500 shares of the issuer may be issued pursuant to the restricted shares granted under 2012 Plan; and (ii) 10,038,493 shares of the issuer may be issued pursuant to the restricted share units granted under 2022 Plan. 259,689 restricted share units granted under 2022 Plan were cancelled during the month.

FF301Page 7 of 10 v 1.1.1(E). Other Movements in Issued Shares and/or Treasury Shares Not applicableTotal increase/ decrease (-) in issued shares (excluding treasury shares) during the month (i.e. Total of AA1 to EE1): 0 WVR ordinary shares ATotal increase/ decrease (-) in treasury shares during the month (i.e. Total of AA2 to EE2): 0 WVR ordinary shares A

FF301Page 8 of 10 v 1.1.1IV. Information about Hong Kong Depositary Receipt (HDR) Not applicable

FF301Page 9 of 10 v 1.1.1V. ConfirmationsPursuant 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: Lau Yee WaTitle: Company Secretary (Director, Secretary or other Duly Authorised Officer)

FF301Page 10 of 10 v 1.1.1Notes1. 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.

FF305Page 1 of 7 v 1.3.0Next 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 SubmissionName of Issuer: Zhihu Inc.Date Submitted: 07 January 2026Section 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 I1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Changes in issued shares or treasury sharesEventsChanges in issued shares (excluding treasury shares) Number of issued shares (excluding treasury shares)As a % of existing number of issued shares (excluding treasury shares) before the relevant event (Note 3)Changes in treasury sharesNumber of treasury sharesIssue/ selling price per share (Note 4)Total number of issued sharesOpening balance as at (Note 1) 05 January 2026 254,416,106 0 254,416,1061). Other (please specify)See Part BDate of changes 06 January 2026%Closing balance as at (Notes 5 and 6) 06 January 2026 254,416,106 0 254,416,106

FF305Page 2 of 7 v 1.3.0B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6) 1). Shares repurchased for cancellation but not yet canceledDate of changes 02 January 202699,000 0.037 % USD 1.1232). Shares repurchased for cancellation but not yet canceledDate of changes 05 January 202699,000 0.037 % USD 1.13283). Shares repurchased for cancellation but not yet canceledDate of changes 06 January 202699,000 0.037 % USD 1.1732Remarks: 33,000 ADS were repurchased on the New York Stock Exchange on January 6, 2026 (U.S. time) at US$3.5196 per ADS. Each ADS represents three class A ordinary shares. The percentage as stated in the above "Changes in issued shares (excluding treasury shares) as a % of existing number of issued shares (excluding treasury shares) before the relevant event" column was calculated based on the Company's issued shares of 269,862,884 (comprising 254,416,106 Class A ordinary shares and 15,446,778 Class B ordinary shares).

FF305Page 3 of 7 v 1.3.0ConfirmationPursuant 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 issue of shares or sale or transfer of treasury shares as set out in Section I, 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 7) (i) all money due to the listed issuer in respect of the issue of shares, or sale or transfer of treasury shares has been received by it; (ii) all pre-conditions for the listing imposed by the Main Board Rules / GEM Rules 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 8); (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.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.

FF305Page 4 of 7 v 1.3.04. 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.

FF305Page 5 of 7 v 1.3.0Section 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 reportSection II1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Repurchase reportTrading date Number of shares repurchasedMethod of repurchase (Note 1)Repurchase price per share or highest repurchase price per share $Lowest repurchase price per share $ Aggregate price paid $1). 06 January 2026 99,000 On another stock exchangeNew York Stock ExchangeUSD 1.1833 USD 1.1533 USD 116,147.095Total number of shares repurchased 99,000 Aggregate price paid $ USD 116,147.095Number of shares repurchased for cancellation99,000Number of shares repurchased for holding as treasury shares0B. Additional information for issuer who has a primary listing on the Exchange1). Date of the resolution granting the repurchase mandate 25 June 20252). Total number of shares which the issuer is authorised to repurchase under the repurchase mandate 26,300,4293). Number of shares repurchased on the Exchange or another stock exchange under the repurchase mandate (a) 297,0004). As a % of number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate (a) x 100 / number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate0.11 %5). Moratorium period for any issue of new shares, or sale or transfer of treasury shares after the share repurchase(s) set out in Part A (Note 2)Up to 05 February 2026

FF305Page 6 of 7 v 1.3.0We hereby confirm that the repurchases made on another stock exchange set out in Part A above were made in accordance with the Main Board Rules and that there have been no material changes to the particulars contained in the Explanatory Statement dated May 29, 2025, which has been filed with the Exchange. We also confirm that any repurchases made on another stock exchange set out in Part A above were made in accordance with the domestic rules applying to repurchases on that other stock exchange.Notes to Section II: 1. Please state whether the repurchase was made on the Exchange, on another stock exchange (stating the name of the exchange), by private arrangement or by general offer. 2. Subject to the carve-out set out in Main Board Rule 10.06(3)(a)/ GEM Rule 13.12, an issuer may not (i) make a new issue of shares, or a sale or transfer of any treasury shares; or (ii) announce a proposed new issue of shares, or a sale or transfer of any treasury shares, for a period of 30 days after any purchase by it of shares, whether on the Exchange or otherwise, without the prior approval of the Exchange.

FF305Page 7 of 7 v 1.3.0Section 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 applicableSubmitted by: Lau Yee Wa(Name) Title: Company Secretary(Director, Secretary or other Duly Authorised Officer)

FF305Page 1 of 7 v 1.3.0Next 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 SubmissionName of Issuer: Zhihu Inc.Date Submitted: 08 January 2026Section 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 I1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Changes in issued shares or treasury sharesEventsChanges in issued shares (excluding treasury shares) Number of issued shares (excluding treasury shares)As a % of existing number of issued shares (excluding treasury shares) before the relevant event (Note 3)Changes in treasury sharesNumber of treasury sharesIssue/ selling price per share (Note 4)Total number of issued sharesOpening balance as at (Note 1) 06 January 2026 254,416,106 0 254,416,1061). Other (please specify)See Part BDate of changes 07 January 2026%Closing balance as at (Notes 5 and 6) 07 January 2026 254,416,106 0 254,416,106

FF305Page 2 of 7 v 1.3.0B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6) 1). Shares repurchased for cancellation but not yet canceledDate of changes 02 January 202699,000 0.037 % USD 1.1232). Shares repurchased for cancellation but not yet canceledDate of changes 05 January 202699,000 0.037 % USD 1.13283). Shares repurchased for cancellation but not yet canceledDate of changes 06 January 202699,000 0.037 % USD 1.17324). Shares repurchased for cancellation but not yet canceledDate of changes 07 January 202699,000 0.037 % USD 1.146Remarks: 33,000 ADS were repurchased on the New York Stock Exchange on January 7, 2026 (U.S. time) at US$3.4381 per ADS. Each ADS represents three class A ordinary shares. The percentage as stated in the above "Changes in issued shares (excluding treasury shares) as a % of existing number of issued shares (excluding treasury shares) before the relevant event" column was calculated based on the Company's issued shares of 269,862,884 (comprising 254,416,106 Class A ordinary shares and 15,446,778 Class B ordinary shares).

FF305Page 3 of 7 v 1.3.0ConfirmationPursuant 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 issue of shares or sale or transfer of treasury shares as set out in Section I, 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 7) (i) all money due to the listed issuer in respect of the issue of shares, or sale or transfer of treasury shares has been received by it; (ii) all pre-conditions for the listing imposed by the Main Board Rules / GEM Rules 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 8); (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.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.

FF305Page 4 of 7 v 1.3.04. 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.

FF305Page 5 of 7 v 1.3.0Section 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 reportSection II1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Repurchase reportTrading date Number of shares repurchasedMethod of repurchase (Note 1)Repurchase price per share or highest repurchase price per share $Lowest repurchase price per share $ Aggregate price paid $1). 07 January 2026 99,000 On another stock exchangeNew York Stock ExchangeUSD 1.1767 USD 1.1333 USD 113,457.335Total number of shares repurchased 99,000 Aggregate price paid $ USD 113,457.335Number of shares repurchased for cancellation99,000Number of shares repurchased for holding as treasury shares0B. Additional information for issuer who has a primary listing on the Exchange1). Date of the resolution granting the repurchase mandate 25 June 20252). Total number of shares which the issuer is authorised to repurchase under the repurchase mandate 26,300,4293). Number of shares repurchased on the Exchange or another stock exchange under the repurchase mandate (a) 396,0004). As a % of number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate (a) x 100 / number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate0.15 %5). Moratorium period for any issue of new shares, or sale or transfer of treasury shares after the share repurchase(s) set out in Part A (Note 2)Up to 06 February 2026

FF305Page 6 of 7 v 1.3.0We hereby confirm that the repurchases made on another stock exchange set out in Part A above were made in accordance with the Main Board Rules and that there have been no material changes to the particulars contained in the Explanatory Statement dated May 29, 2025, which has been filed with the Exchange. We also confirm that any repurchases made on another stock exchange set out in Part A above were made in accordance with the domestic rules applying to repurchases on that other stock exchange.Notes to Section II: 1. Please state whether the repurchase was made on the Exchange, on another stock exchange (stating the name of the exchange), by private arrangement or by general offer. 2. Subject to the carve-out set out in Main Board Rule 10.06(3)(a)/ GEM Rule 13.12, an issuer may not (i) make a new issue of shares, or a sale or transfer of any treasury shares; or (ii) announce a proposed new issue of shares, or a sale or transfer of any treasury shares, for a period of 30 days after any purchase by it of shares, whether on the Exchange or otherwise, without the prior approval of the Exchange.

FF305Page 7 of 7 v 1.3.0Section 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 applicableSubmitted by: Lau Yee Wa(Name) Title: Company Secretary(Director, Secretary or other Duly Authorised Officer)

FF305Page 1 of 7 v 1.3.0Next 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 SubmissionName of Issuer: Zhihu Inc.Date Submitted: 09 January 2026Section 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 I1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Changes in issued shares or treasury sharesEventsChanges in issued shares (excluding treasury shares) Number of issued shares (excluding treasury shares)As a % of existing number of issued shares (excluding treasury shares) before the relevant event (Note 3)Changes in treasury sharesNumber of treasury sharesIssue/ selling price per share (Note 4)Total number of issued sharesOpening balance as at (Note 1) 07 January 2026 254,416,106 0 254,416,1061). Other (please specify)See Part BDate of changes 08 January 2026%Closing balance as at (Notes 5 and 6) 08 January 2026 254,416,106 0 254,416,106

FF305Page 2 of 7 v 1.3.0B. Shares redeemed or repurchased for cancellation but not yet cancelled as at the closing balance date (Notes 5 and 6) 1). Shares repurchased for cancellation but not yet canceledDate of changes 02 January 202699,000 0.037 % USD 1.1232). Shares repurchased for cancellation but not yet canceledDate of changes 05 January 202699,000 0.037 % USD 1.13283). Shares repurchased for cancellation but not yet canceledDate of changes 06 January 202699,000 0.037 % USD 1.17324). Shares repurchased for cancellation but not yet canceledDate of changes 07 January 202699,000 0.037 % USD 1.1465). Shares repurchased for cancellation but not yet canceledDate of changes 08 January 202699,000 0.037 % USD 1.1744Remarks: 33,000 ADS were repurchased on the New York Stock Exchange on January 8, 2026 (U.S. time) at US$3.5232 per ADS. Each ADS represents three class A ordinary shares. The percentage as stated in the above "Changes in issued shares (excluding treasury shares) as a % of existing number of issued shares (excluding treasury shares) before the relevant event" column was calculated based on the Company's issued shares of 269,862,884 (comprising 254,416,106 Class A ordinary shares and 15,446,778 Class B ordinary shares).

FF305Page 3 of 7 v 1.3.0ConfirmationPursuant 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 issue of shares or sale or transfer of treasury shares as set out in Section I, 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 7) (i) all money due to the listed issuer in respect of the issue of shares, or sale or transfer of treasury shares has been received by it; (ii) all pre-conditions for the listing imposed by the Main Board Rules / GEM Rules 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 8); (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.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.

FF305Page 4 of 7 v 1.3.04. 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.

FF305Page 5 of 7 v 1.3.0Section 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 reportSection II1. Class of shares WVR ordinary shares Type of shares A Listed on the Exchange YesStock code (if listed) 02390 DescriptionA. Repurchase reportTrading date Number of shares repurchasedMethod of repurchase (Note 1)Repurchase price per share or highest repurchase price per share $Lowest repurchase price per share $ Aggregate price paid $1). 08 January 2026 99,000 On another stock exchangeNew York Stock ExchangeUSD 1.2 USD 1.1433 USD 116,267.055Total number of shares repurchased 99,000 Aggregate price paid $ USD 116,267.055Number of shares repurchased for cancellation99,000Number of shares repurchased for holding as treasury shares0B. Additional information for issuer who has a primary listing on the Exchange1). Date of the resolution granting the repurchase mandate 25 June 20252). Total number of shares which the issuer is authorised to repurchase under the repurchase mandate 26,300,4293). Number of shares repurchased on the Exchange or another stock exchange under the repurchase mandate (a) 495,0004). As a % of number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate (a) x 100 / number of issued shares (excluding treasury shares) as at the date of the resolution granting the repurchase mandate0.188 %5). Moratorium period for any issue of new shares, or sale or transfer of treasury shares after the share repurchase(s) set out in Part A (Note 2)Up to 07 February 2026

FF305Page 6 of 7 v 1.3.0We hereby confirm that the repurchases made on another stock exchange set out in Part A above were made in accordance with the Main Board Rules and that there have been no material changes to the particulars contained in the Explanatory Statement dated May 29, 2025, which has been filed with the Exchange. We also confirm that any repurchases made on another stock exchange set out in Part A above were made in accordance with the domestic rules applying to repurchases on that other stock exchange.Notes to Section II: 1. Please state whether the repurchase was made on the Exchange, on another stock exchange (stating the name of the exchange), by private arrangement or by general offer. 2. Subject to the carve-out set out in Main Board Rule 10.06(3)(a)/ GEM Rule 13.12, an issuer may not (i) make a new issue of shares, or a sale or transfer of any treasury shares; or (ii) announce a proposed new issue of shares, or a sale or transfer of any treasury shares, for a period of 30 days after any purchase by it of shares, whether on the Exchange or otherwise, without the prior approval of the Exchange.

FF305Page 7 of 7 v 1.3.0Section 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 applicableSubmitted by: Lau Yee Wa(Name) Title: Company Secretary(Director, Secretary or other Duly Authorised Officer)