Shenzhen Huiding Technology Co., Ltd. Daily Announcement Series

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Stock code: 603160 Stock abbreviation: HIDATA Announcement No.: 2026-016

HIDATA Technologies Co., Ltd.

Announcement on the Completion of the Cancellation of Certain Stock Options

The board of directors of the Company and all directors hereby warrant that there are no false records, misleading statements, or material omissions in the contents of this announcement, and assume individual and joint liability for the authenticity, accuracy, and completeness of the contents herein.

HIDATA Technologies Co., Ltd. (hereinafter referred to as the “Company”) held the 16th meeting of the fifth session of the board of directors on March 25, 2026, and approved the proposal on “the Cancellation of Certain Stock Options.” It was agreed to cancel a total of 2,416,557 stock options that had been granted but not yet vested to certain incentive recipients under the 2021 third stock option incentive plan, the 2022 first stock option incentive plan, and the 2023 first stock option incentive plan. Details are as follows:

Given that, for the 2021 third stock option incentive plan, 16 incentive recipients no longer meet the qualification as incentive recipients due to having left their posts, the board of directors decided to cancel the qualification of the above incentive recipients and cancel a total of 43,067 stock options that had been granted but not yet exercised; 853 incentive recipients had a score of less than 80 points in the Company-level performance appraisal result for FY 2025, so the Company-level exercise ratio for the fourth exercise period is 0%, and the stock options scheduled for exercise for that appraisal year corresponding to them may not be exercised. The Company will cancel them. The board of directors decided to cancel a total of 2,230,560 stock options that had been granted but may not be exercised by the above 853 incentive recipients; a total of 2,273,627 stock options under the 2021 third stock option incentive plan will be canceled in this round.

Given that, for the 2022 first stock option incentive plan, 5 incentive recipients no longer meet the qualification as incentive recipients due to having left their posts, the board of directors decided to cancel the qualification of the above incentive recipients and cancel a total of 5,574 stock options that had been granted but not yet exercised.

Given that, for the 2023 first stock option incentive plan, 17 incentive recipients no longer meet the qualification as incentive recipients due to having left their posts, the board of directors decided to cancel the qualification of the above incentive recipients and cancel a total of 137,356 stock options that had been granted but not yet exercised.

For the above specific details, please refer to the “Announcement on the Cancellation of Certain Stock Options” (Announcement No.: 2026-012) disclosed by the Company on March 27, 2026 on the website of the Shanghai Stock Exchange (www.sse.com.cn).

With respect to the stock options that need to be canceled, the Company has submitted an application for cancellation to China Securities Depository and Clearing Co., Ltd. Shanghai Branch. After reviewing and confirming by China Securities Depository and Clearing Co., Ltd. Shanghai Branch, the cancellation matters relating to a total of 2,416,557 stock options under the aforesaid equity incentive plan have been completed as of March 31, 2026. This stock option cancellation will not have any impact on the Company’s share capital.

This announcement is hereby made.

Board of Directors of HIDATA Technologies Co., Ltd.

April 2, 2026

Stock code: 603160 Stock abbreviation: HIDATA Announcement No.: 2026-017

HIDATA Technologies Co., Ltd.

Announcement on the Results of Self-Exercised Stock Options for the First Quarter of 2026 and Changes in Shares

The board of directors of the Company and all directors hereby warrant that there are no false records, misleading statements, or material omissions in the contents of this announcement, and assume individual and joint liability for the authenticity, accuracy, and completeness of the contents herein.

Key highlights:

● Number of shares exercised in this round: 439,438 shares. The related details of stock options are as follows:

Under the Company’s 2022 first stock option incentive plan, the exercisable quantity for the third exercise period is 606,712 options, and the actual exercisable period is from June 30, 2025 to June 19, 2026 (the exercise date must be a trading day), with the exercise method being self-directed exercise. In the first quarter of 2026, a total of 38,931 shares were exercised and share transfer registration was completed, accounting for 6.42% of the total exercisable stock options.

Under the Company’s 2023 first stock option incentive plan, the exercisable quantity for the second exercise period is 4,036,498 options, and the actual exercisable period is from August 25, 2025 to August 24, 2026 (the exercise date must be a trading day), with the exercise method being self-directed exercise. In the first quarter of 2026, a total of 400,507 shares were exercised and share transfer registration was completed, accounting for 9.92% of the total exercisable stock options.

● The listing and trading timeline for the exercised shares:

The stock options under the Company’s 2022 first stock option incentive plan and 2023 first stock option incentive plan use the self-directed exercise model. The shares obtained by the incentive recipients through exercising will be listed for trading on the second trading day (T+2) after the exercise date (T) (the exercise date is the trading day on which the exercise occurs).

I. Approval and implementation status of the 2022 first stock option incentive plan

(1) Relevant approval procedures for the 2022 first stock option incentive plan

1. On April 7, 2022, the Company convened the 8th meeting of the fourth session of the board of directors and approved, among other things, the proposals on “the <HIDATA Technologies Co., Ltd. 2022 First Stock Option Incentive Plan (Draft)> and its Summary” and “the <Administrative Measures for the Implementation and Performance Appraisal of the 2022 First Stock Option Incentive Plan of HIDATA Technologies Co., Ltd.>.” On the same day, the Company’s 7th meeting of the fourth session of the board of supervisors approved the aforesaid proposals and the proposal on “Verifying the List of Incentive Recipients to Be Granted Stock Options under the 2022 First Stock Option Incentive Plan of the Company.”

2. On April 9, 2022, the Company posted the list of incentive recipients on the website of the Shanghai Stock Exchange () and internally within the Company for public notice. The public notice period was from April 9, 2022 to April 18, 2022. During the public notice period, the Company did not receive any objections from any organization or individual regarding any incentive recipient in this incentive plan. In addition, the board of supervisors conducted a review of the list of incentive recipients, and on April 20, 2022, it disclosed on the website of the Shanghai Stock Exchange the “Board of Supervisors’ Review Opinions on the List of Incentive Recipients of the 2022 First Stock Option Incentive Plan and a Statement on the Public Notice.”

3. On April 25, 2022, the Company convened the first extraordinary general meeting of shareholders in 2022 and approved the proposals on “the <HIDATA Technologies Co., Ltd. 2022 First Stock Option Incentive Plan (Draft)> and its Summary,” “the <Administrative Measures for the Implementation and Performance Appraisal of the 2022 First Stock Option Incentive Plan of HIDATA Technologies Co., Ltd.>,” and “the proposal to authorize the board of directors to handle matters related to the 2022 First Stock Option Incentive Plan.” On the same day, the Company disclosed the “Self-Inspection Report on Trading of the Company’s Shares by Insiders Who Have Knowledge of Inside Information Concerning the 2022 First Stock Option Incentive Plan.”

(2) Grant status under the 2022 first stock option incentive plan

1. On April 25, 2022, the Company held, respectively, the 9th meeting of the fourth session of the board of directors and the 8th meeting of the fourth session of the board of supervisors. The Company approved the proposal on “Adjusting Certain Matters Related to the 2022 First Stock Option Incentive Plan” and the proposal on “Granting Stock Options to Incentive Recipients under the 2022 First Stock Option Incentive Plan.” It agreed to set April 25, 2022 as the grant date and to grant stock options of 3,935,812 options to 515 eligible incentive recipients, with an exercise price of RMB 74.57 per option. The Company’s independent directors issued independent opinions in favor of the above matters.

2. On June 20, 2022, the Company completed, through China Securities Depository and Clearing Co., Ltd. Shanghai Branch, the registration work for the grant of stock options under the 2022 first stock option incentive plan. Among them: 3,831,062 stock options were granted, and the number of recipients was 494.

(3) Adjustments made on multiple occasions after the grant under the 2022 first stock option incentive plan

1. On July 25, 2022, the Company held the 12th meeting of the fourth session of the board of directors and the 11th meeting of the fourth session of the board of supervisors, and approved the proposal on “Adjusting the Exercise Price of Company Stock Options.” As the Company implemented profit distribution for 2021, where the plan was to distribute cash dividends of RMB 0.22 per share (tax included), the exercise price of the 2022 first stock option incentive plan was adjusted from RMB 74.57 per option to RMB 74.35 per option. The Company’s independent directors issued independent opinions in favor of the above matters.

2. On August 15, 2022, the Company held the 13th meeting of the fourth session of the board of directors and the 12th meeting of the fourth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” The Company’s independent directors issued independent opinions in favor of the above matters. On August 19, 2022, the Company completed the cancellation procedures for a total of 252,251 stock options held by the 17 incentive recipients mentioned above.

3. On October 26, 2022, the Company held, respectively, the 15th meeting of the fourth session of the board of directors and the 14th meeting of the fourth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” The Company’s independent directors issued independent opinions in favor of the above matters. On November 1, 2022, the Company completed the cancellation procedures for a total of 228,512 stock options held by the 49 incentive recipients mentioned above.

4. On November 14, 2022, the Company held, respectively, the 16th meeting of the fourth session of the board of directors and the 15th meeting of the fourth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” The Company’s independent directors issued independent opinions in favor of the above matters. On November 21, 2022, the Company completed the cancellation procedures for a total of 223,437 stock options held by the 18 incentive recipients mentioned above.

5. On March 4, 2023, the Company held, respectively, the 18th meeting of the fourth session of the board of directors and the 17th meeting of the fourth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” The Company’s independent directors issued independent opinions in favor of the above matters. On March 17, 2023, the Company completed the cancellation procedures for a total of 213,076 stock options held by the 16 incentive recipients mentioned above.

6. On April 25, 2023, the Company held, respectively, the 19th meeting of the fourth session of the board of directors and the 18th meeting of the fourth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” The Company’s independent directors issued independent opinions in favor of the above matters. On May 17, 2023, the Company completed the cancellation procedures for a total of 82,298 stock options held by the 13 incentive recipients mentioned above.

7. On June 5, 2023, the Company held, respectively, the 21st meeting of the fourth session of the board of directors and the 20th meeting of the fourth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” The Company’s independent directors issued independent opinions in favor of the above matters. On June 20, 2023, the Company completed the cancellation procedures for a total of 48,729 stock options held by the 7 incentive recipients who left their posts and 1 incentive recipient whose individual-level performance appraisal did not meet the 100% exercise condition.

8. On December 21, 2023, the Company held the 28th meeting of the fourth session of the board of directors and the 27th meeting of the fourth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” On December 29, 2023, the Company completed the cancellation procedures for a total of 168,147 stock options held by the 33 incentive recipients mentioned above.

9. On April 9, 2024, the Company held the 30th meeting of the fourth session of the board of directors and the 28th meeting of the fourth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” On April 18, 2024, the Company completed the cancellation procedures for a total of 24,098 stock options held by the 7 incentive recipients mentioned above.

10. On May 14, 2024, the Company held the 32nd meeting of the fourth session of the board of directors and the 30th meeting of the fourth session of the board of supervisors, and approved the proposal on “Adjusting the Exercise Price of Company Stock Options.” As the Company implemented profit distribution for 2023, where the plan was to distribute cash dividends of RMB 0.18 per share (tax included), the exercise price of the 2022 first stock option incentive plan was adjusted from RMB 74.35 per option to RMB 74.17 per option.

11. On June 3, 2024, the Company held, respectively, the 33rd meeting of the fourth session of the board of directors and the 31st meeting of the fourth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” On June 20, 2024, the Company completed the cancellation procedures for a total of 14,742 stock options held by the 8 incentive recipients mentioned above.

12. On August 2, 2024, the Company held, respectively, the 34th meeting of the fourth session of the board of directors and the 32nd meeting of the fourth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” On August 12, 2024, the Company completed the cancellation procedures for a total of 602,731 stock options held by those remaining not exercised and expiring during the first exercise period.

13. On November 5, 2024, the Company held, respectively, the 3rd meeting of the fifth session of the board of directors and the 3rd meeting of the fifth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” On November 18, 2024, the Company completed the cancellation procedures for a total of 22,372 stock options held by the 8 incentive recipients mentioned above.

14. On March 19, 2025, the Company held, respectively, the 6th meeting of the fifth session of the board of directors and the 6th meeting of the fifth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” On March 31, 2025, the Company completed the cancellation procedures for a total of 4,293 stock options held by the 1 incentive recipient mentioned above.

15. On June 3, 2025, the Company held the 8th meeting of the fifth session of the board of directors and the 8th meeting of the fifth session of the board of supervisors, and approved the proposal on “Adjusting the Exercise Price of Company Stock Options.” As the Company implemented profit distribution for 2024, where the plan was to distribute cash dividends of RMB 0.394 per share (tax included), the exercise price of the 2022 first stock option incentive plan was adjusted from RMB 74.17 per option to RMB 73.78 per option.

16. On June 3, 2025, the Company held the 8th meeting of the fifth session of the board of directors and the 8th meeting of the fifth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” On June 13, 2025, the Company completed the cancellation procedures for a total of 73,761 stock options held by the 8 incentive recipients mentioned above.

17. On September 12, 2025, the Company held the 12th meeting of the fifth session of the board of directors, and approved the proposal on “Adjusting the Exercise Price of Company Stock Options.” As the Company implemented profit distribution for the first half of 2025, where the plan was to distribute cash dividends of RMB 0.15 per share (tax included), the exercise price of the 2022 first stock option incentive plan was adjusted from RMB 73.78 per option to RMB 73.63 per option.

18. On October 23, 2025, the Company held the 13th meeting of the fifth session of the board of directors, and approved the proposal on “the Cancellation of Certain Stock Options.” On November 3, 2025, the Company completed the cancellation procedures for a total of 219,884 stock options held by the 9 incentive recipients who left their posts and for the stock options not exercised by expiry of the second exercise period mentioned above.

19. On March 25, 2025, the Company held the 16th meeting of the fifth session of the board of directors, and approved the proposal on “the Cancellation of Certain Stock Options.” On March 31, 2026, the Company completed the cancellation procedures for a total of 5,574 stock options held by the 5 incentive recipients who left their posts mentioned above.

(4) Exercise status of the 2022 first stock option incentive plan on multiple occasions

1. On June 5, 2023, the Company held, respectively, the 21st meeting of the fourth session of the board of directors and the 20th meeting of the fourth session of the board of supervisors, and approved the proposal on “the Fulfillment of the Exercise Conditions for the First Exercise Period under the 2022 First Stock Option Incentive Plan.” According to the relevant provisions of the “2022 First Stock Option Incentive Plan (Draft),” the exerciseable quantity for the first exercise period under this incentive plan as a proportion of the granted stock options is 22%. The total number of stock options exercisable by 374 incentive recipients in the first period is 611,504. The exercise validity period is from June 20, 2023 to June 19, 2024 (the exercise date must be a trading day), with the exercise method being self-directed exercise. The actual exercise period is from July 18, 2023 to June 19, 2024. As of June 19, 2024, under this incentive plan, a cumulative number of stock options had been exercised in the first exercise period and share transfer registration had been completed for 8,773 shares, representing 1.43% of the total stock options exercisable. During the aforesaid agreed period, a total of 602,713 stock options were not applied for exercise; the Company completed their cancellation on August 12, 2024.

2. On June 3, 2024, the Company held, respectively, the 33rd meeting of the fourth session of the board of directors and the 31st meeting of the fourth session of the board of supervisors, and approved the proposal on “the Fulfillment of the Exercise Conditions for the Second Exercise Period under the 2022 First Stock Option Incentive Plan.” According to the relevant provisions of the “2022 First Stock Option Incentive Plan (Draft),” the exerciseable quantity for the second exercise period under this incentive plan as a proportion of the granted stock options is 24%. The total number of stock options exercisable by 328 incentive recipients in the second period is 603,718. The exercise validity period is from June 20, 2024 to June 19, 2025 (the exercise date must be a trading day), with the exercise method being self-directed exercise. The actual exercise period is from July 1, 2024 to June 19, 2025. As of June 19, 2025, under this incentive plan, a cumulative number of stock options had been exercised in the second exercise period and share transfer registration had been completed for 402,216 shares, representing 66.62% of the total stock options exercisable. During the aforesaid agreed period, a total of 201,502 stock options were not applied for exercise; the Company completed their cancellation on November 3, 2025.

3. On June 3, 2025, the Company held, respectively, the 8th meeting of the fifth session of the board of directors and the 8th meeting of the fifth session of the board of supervisors, and approved the proposal on “the Fulfillment of the Exercise Conditions for the Third Exercise Period under the 2022 First Stock Option Incentive Plan.” According to the relevant provisions of the “2022 First Stock Option Incentive Plan (Draft),” the exerciseable quantity for the third exercise period under this incentive plan as a proportion of the granted stock options is 26%. The total number of stock options exercisable by 311 incentive recipients in the third period is 606,712. The exercise validity period is from June 20, 2025 to June 19, 2026 (the exercise date must be a trading day), with the exercise method being self-directed exercise. The actual exercise period is from June 30, 2025 to June 19, 2026.

(5) Basic information for the exercise under this equity incentive plan

1. Number of shares exercised by incentive recipients

2. Source of shares exercised in this round

The Company will issue A-shares through targeted additional issuance to incentive recipients.

3. Number of participants

The number of incentive recipients with exercisable options in the third exercise period is 311. As of March 31, 2026, a total of 184 people participated in the exercise.

II. Approval and implementation status of the 2023 first stock option incentive plan

(1) Relevant approval procedures for the 2023 first stock option incentive plan

1. On July 20, 2023, the Company held the 22nd meeting of the fourth session of the board of directors, and approved the proposals on “the <HIDATA Technologies Co., Ltd. 2023 First Stock Option Incentive Plan (Draft)> and its Summary,” “the <Administrative Measures for the Implementation and Performance Appraisal of the 2023 First Stock Option Incentive Plan of HIDATA Technologies Co., Ltd.>,” and “the proposal to authorize the board of directors to handle matters related to the 2023 First Stock Option Incentive Plan.” On the same day, the Company’s 21st meeting of the fourth session of the board of supervisors approved the aforesaid proposals and the proposal on “Verifying the List of Incentive Recipients to Be Granted Stock Options under the 2023 First Stock Option Incentive Plan of the Company.”

2. On July 22, 2023, the Company posted the list of incentive recipients on the website of the Shanghai Stock Exchange () and internally within the Company for public notice. The public notice period was from July 22, 2023 to July 31, 2023. During the public notice period, the Company did not receive any objections from any organization or individual regarding any incentive recipient in this incentive plan. In addition, the board of supervisors conducted a review of the list of incentive recipients, and on August 2, 2023, it disclosed on the website of the Shanghai Stock Exchange the “Board of Supervisors’ Review Opinions on the List of Incentive Recipients of the 2023 First Stock Option Incentive Plan and a Statement on the Public Notice.”

3. On August 7, 2023, the Company held the second extraordinary general meeting of shareholders in 2023, and approved the proposals on “the <HIDATA Technologies Co., Ltd. 2023 First Stock Option Incentive Plan (Draft)> and its Summary,” “the <Administrative Measures for the Implementation and Performance Appraisal of the 2023 First Stock Option Incentive Plan of HIDATA Technologies Co., Ltd.>,” and “the proposal to authorize the board of directors to handle matters related to the 2023 First Stock Option Incentive Plan.” On the same day, the Company disclosed the “Self-Inspection Report on Trading of the Company’s Shares by Insiders Who Have Knowledge of Inside Information Concerning the 2023 First Stock Option Incentive Plan.”

(2) Grant status under the 2023 first stock option incentive plan

1. On August 7, 2023, the Company held, respectively, the 23rd meeting of the fourth session of the board of directors and the 22nd meeting of the fourth session of the board of supervisors, and approved the proposal on “Adjusting Certain Matters Related to the 2023 First Stock Option Incentive Plan” and the proposal on “Granting Stock Options to Incentive Recipients under the 2023 First Stock Option Incentive Plan.” It agreed to set August 7, 2023 as the grant date and to grant stock options of 19,606,675 options to 1,143 eligible incentive recipients, with an exercise price of RMB 55.95 per option. The Company’s independent directors issued independent opinions in favor of the above matters.

2. On August 25, 2023, the Company completed, through China Securities Depository and Clearing Co., Ltd. Shanghai Branch, the registration work for the grant of stock options under the 2023 first stock option incentive plan. Among them: 19,562,971 stock options were granted, and the number of recipients was 1,139.

(3) Adjustments made on multiple occasions after the grant under the 2023 first stock option incentive plan

1. On December 21, 2023, the Company held the 28th meeting of the fourth session of the board of directors and the 27th meeting of the fourth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” On December 29, 2023, the Company completed the cancellation procedures for a total of 585,796 stock options held by the 63 incentive recipients mentioned above.

2. On April 9, 2024, the Company held the 30th meeting of the fourth session of the board of directors and the 28th meeting of the fourth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” On April 18, 2024, the Company completed the cancellation procedures for a total of 675,933 stock options held by the 47 incentive recipients mentioned above.

3. On May 14, 2024, the Company held the 32nd meeting of the fourth session of the board of directors and the 30th meeting of the fourth session of the board of supervisors, and approved the proposal on “Adjusting the Exercise Price of Company Stock Options.” As the Company implemented profit distribution for 2023, where the plan was to distribute cash dividends of RMB 0.18 per share (tax included), the exercise price of the 2023 first stock option incentive plan was adjusted from RMB 55.95 per option to RMB 55.77 per option.

4. On August 2, 2024, the Company held the 34th meeting of the fourth session of the board of directors and the 32nd meeting of the fourth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” On August 12, 2024, the Company completed the cancellation procedures for a total of 409,750 stock options held by the 29 incentive recipients who left their posts and the 3 incentive recipients whose individual-level performance appraisal did not meet the 100% exercise condition mentioned above.

5. On November 5, 2024, the Company held the 3rd meeting of the fifth session of the board of directors and the 3rd meeting of the fifth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” On November 18, 2024, the Company completed the cancellation procedures for a total of 187,205 stock options held by the 15 incentive recipients mentioned above.

6. On March 19, 2025, the Company held the 6th meeting of the fifth session of the board of directors and the 6th meeting of the fifth session of the board of supervisors, respectively, and approved the proposal on “the Cancellation of Certain Stock Options.” On March 31, 2025, the Company completed the cancellation procedures for a total of 82,389 stock options held by the 8 incentive recipients mentioned above.

7. On June 3, 2025, the Company held the 8th meeting of the fifth session of the board of directors and the 8th meeting of the fifth session of the board of supervisors, and approved the proposal on “Adjusting the Exercise Price of Company Stock Options.” As the Company implemented profit distribution for 2024, where the plan was to distribute cash dividends of RMB 0.394 per share (tax included), the exercise price of the 2023 first stock option incentive plan was adjusted from RMB 55.77 per option to RMB 55.38 per option.

8. On August 1, 2025, the Company held the 10th meeting of the fifth session of the board of directors and the 9th meeting of the fifth session of the board of supervisors, and approved the proposal on “the Cancellation of Certain Stock Options.” On August 5, 2025, the Company completed the cancellation procedures for a total of 563,344 stock options held by the 33 incentive recipients who left their posts and the 2 incentive recipients whose individual-level performance appraisal did not meet the 100% exercise condition mentioned above.

9. On September 12, 2025, the Company held the 12th meeting of the fifth session of the board of directors, and approved the proposal on “Adjusting the Exercise Price of Company Stock Options.” As the Company implemented profit distribution for the first half of 2025, where the plan was to distribute cash dividends of RMB 0.15 per share (tax included), the exercise price of the 2023 first stock option incentive plan was adjusted from RMB 55.38 per option to RMB 55.23 per option.

10. On October 23, 2025, the Company held the 13th meeting of the fifth session of the board of directors, and approved the proposal on “the Cancellation of Certain Stock Options.” On November 3, 2025, the Company completed the cancellation procedures for a total of 277,823 stock options held by the 18 incentive recipients who left their posts and the stock options not exercised by expiry of the first exercise period mentioned above.

11. On March 25, 2025, the Company held the 16th meeting of the fifth session of the board of directors, and approved the proposal on “the Cancellation of Certain Stock Options.” On March 31, 2026, the Company completed the cancellation procedures for a total of 137,356 stock options held by the 17 incentive recipients who left their posts mentioned above.

(4) Exercise status of the 2023 first stock option incentive plan on multiple occasions

1. On August 2, 2024, the Company held, respectively, the 34th meeting of the fourth session of the board of directors and the 32nd meeting of the fourth session of the board of supervisors, and approved the proposal on “the Fulfillment of the Exercise Conditions for the First Exercise Period under the 2023 First Stock Option Incentive Plan.” According to the relevant provisions of the “2023 First Stock Option Incentive Plan (Draft),” the exerciseable quantity for the first exercise period under this incentive plan as a proportion of the granted stock options is 22%. The total number of stock options exercisable in the first period by 1,000 incentive recipients is 3,932,677. The exercise validity period is from August 25, 2024 to August 24, 2025 (the exercise date must be a trading day), with the exercise method being self-directed exercise. Based on the handling of self-directed exercise procedures, the actual exercise period is from August 26, 2024 to August 24, 2025. As of August 24, 2025, for the first exercise period under this incentive plan, a total of 3,872,698 shares were exercised cumulatively and share transfer registration was completed, representing 98.47% of the total stock options exercisable. During the aforesaid agreed period, a total of 59,979 stock options were not applied for exercise; the Company completed their cancellation on November 3, 2025.

2. On August 1, 2025, the Company held, respectively, the 10th meeting of the fifth session of the board of directors and the 9th meeting of the fifth session of the board of supervisors, and approved the proposal on “the Fulfillment of the Exercise Conditions for the Second Exercise Period under the 2023 First Stock Option Incentive Plan.” According to the relevant provisions of the “2023 First Stock Option Incentive Plan (Draft),” the exerciseable quantity for the second exercise period under this incentive plan as a proportion of the granted stock options is 24%. The total number of stock options exercisable by 944 incentive recipients in the second period is 4,036,498. The exercise validity period is from August 25, 2025 to August 24, 2026 (the exercise date must be a trading day), with the exercise method being self-directed exercise. Based on the handling of self-directed exercise procedures, the actual exercise period is from August 25, 2025 to August 24, 2026.

(5) Basic information for the exercise under this equity incentive plan

1. Number of shares exercised by incentive recipients

2. Source of shares exercised in this round

The Company will issue A-shares through targeted additional issuance to incentive recipients.

3. Number of participants

The number of incentive recipients with exercisable options in the second exercise period is 944. As of March 31, 2026, a total of 816 people participated in the exercise.

III. Arrangements for the listing and trading of exercised shares and changes in share capital structure under the equity incentive plan

1. Listing and trading date for the exercised shares

The Company’s 2022 first stock option incentive plan and 2023 first stock option incentive plan use the self-directed exercise model. The shares obtained by the incentive recipients through exercising will be listed for trading on the second trading day (T+2) after the exercise date (T) (the exercise date is the trading day on which the exercise occurs).

2. Number of shares to be listed and traded

The total number of shares to be listed and traded in the first quarter of 2026 under the Company’s 2022 first stock option incentive plan and 2023 first stock option incentive plan is 439,438 shares.

3. Lock-up and transfer restrictions on exercised shares held by directors and senior management

After incentive recipients exercise options, all newly added shares of the Company will be shares with unrestricted conditions for circulation.

The newly added shares arising from the exercise of options by senior management personnel participating in the 2022 first stock option incentive plan will be locked up for 6 months from the date they exercise in accordance with relevant laws and regulations. When transferring, they must comply with the relevant rules of the China Securities Regulatory Commission and the Shanghai Stock Exchange.

The incentive recipients under the 2023 first stock option incentive plan do not include the Company’s directors and senior management personnel; therefore, after the stock option incentive recipients exercise, their transfer of shares held in the Company is not subject to proportional or time restrictions.

4. Changes in share capital structure in this round

Unit: shares

IV. Share registration details and plan for the use of raised funds

As of March 31, 2026, under the 2022 first stock option incentive plan’s third exercise period and the 2023 first stock option incentive plan’s second exercise period, shares transferred and registered cumulatively through the self-directed exercise method at China Securities Depository and Clearing Co., Ltd. Shanghai Branch were 3,498,603 shares, and a total amount of RMB 199,123,415.69 was raised.

The above raised funds will be used to supplement the Company’s working capital.

V. Impact of newly added shares after the first quarter exercise on the most recent financial report

The newly added shares from the Company’s stock option exercises in the first quarter do not constitute any material impact on the Company’s financial condition and operating results.

This announcement is hereby made.

Board of Directors of HIDATA Technologies Co., Ltd.

April 2, 2026

Stock code: 603160 Stock abbreviation: HIDATA Announcement No.: 2026-018

HIDATA Technologies Co., Ltd.

Announcement on the Progress of the Share Buyback by the Company

under the Centralized Competitive Trading Method

The board of directors of the Company and all directors hereby warrant that there are no false records, misleading statements, or material omissions in the contents of this announcement, and assume legal responsibility for the authenticity, accuracy, and completeness of the contents herein.

Key highlights:

I. Basic information on the share buyback

HIDATA Technologies Co., Ltd. (hereinafter referred to as the “Company”) held the 14th meeting of the fifth session of the board of directors on November 21, 2025, and approved the proposal on “Repurchasing the Company’s Shares by Using the Centralized Competitive Trading Method.” It was agreed that the Company would use its own funds to repurchase the Company’s shares using the centralized competitive trading method. The repurchase price shall not exceed RMB 124.15 per share (inclusive), and the repurchase amount shall be no less than RMB 200 million (inclusive) and no more than RMB 400 million (inclusive). The repurchase period shall not exceed 12 months from the date on which the board of directors approves this share buyback plan.

On November 22, 2025, the Company disclosed the “Report on Repurchasing the Company’s Shares by Using the Centralized Competitive Trading Method” (Announcement No.: 2025-075). The specific contents of the above matters are set out in the relevant announcements disclosed by the Company in the “China Securities Journal,” “Shanghai Securities News,” “Securities Times,” and on the website of the Shanghai Stock Exchange (www.sse.com.cn).

II. Progress of the share buyback

In accordance with the relevant provisions such as the “Shanghai Stock Exchange Listing Company Self-Regulatory Guidance No. 7—Share Repurchases” and other relevant rules, listed companies should disclose the progress of their share repurchases within the first 3 trading days of each month, covering the repurchase status as of the end of the previous month. The progress of the share buyback is hereby disclosed as follows:

In March 2026, the Company repurchased 265,900 shares of the Company through the centralized competitive trading method. The repurchased shares account for 0.06% of the Company’s total share capital. The highest purchase price was RMB 73.34 per share, and the lowest purchase price was RMB 65.85 per share. The total amount paid was RMB 18.096112 million (including transaction fees).

From the start date of implementing the share buyback to March 31, 2026, through the centralized competitive trading method, the Company’s special securities account for share repurchase had repurchased a total of 2,830,400 shares. The repurchased shares account for 0.61% of the Company’s total share capital. The highest purchase price was RMB 80.08 per share, and the lowest purchase price was RMB 65.85 per share. The total amount paid was RMB 218.16M (including transaction fees).

The above progress of the share buyback complies with the requirements of relevant laws and regulations and the Company’s share repurchase plan.

III. Other matters

The Company will strictly comply with the relevant provisions such as the “Rules for the Repurchase of Shares by Listed Companies” and the “Shanghai Stock Exchange Listing Company Self-Regulatory Guidance No. 7—Share Repurchases,” and within the repurchase period, make and implement repurchase decisions when appropriate based on market conditions. At the same time, based on the progress of the repurchase matters, the Company will fulfill its information disclosure obligations in a timely manner. Investors are kindly requested to pay attention to investment risks.

This announcement is hereby made.

Board of Directors of HIDATA Technologies Co., Ltd.

April 2, 2026

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