Announcement on the dilution action of the controlling shareholders and their actual shareholding ratio of

Securities code: Dayu Water-Saving Group Co.Ltd(300021) securities abbreviation: Dayu Water-Saving Group Co.Ltd(300021) Announcement No.: 2022026 bond Code: 123063 bond abbreviation: Dayu convertible bond

Dayu Water-Saving Group Co.Ltd(300021)

Announcement on passive dilution of shareholding ratio of controlling shareholders, actual controllers and persons acting in concert by more than 1%

The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.

Special tips:

This change in the interests of the controlling shareholders, actual controllers and persons acting in concert belongs to the change of the company’s share capital and passive dilution of the shareholding ratio, which does not involve the reduction of shareholders’ shares, will not lead to the change of the company’s control and will not have an impact on the company’s operation and governance structure

Approved by the reply on Approving the registration of Dayu Water-Saving Group Co.Ltd(300021) issuing shares to specific objects (zjxk [2022] No. 325) of China Securities Regulatory Commission, Dayu Water-Saving Group Co.Ltd(300021) Group Co., Ltd. (hereinafter referred to as “the company”) issued 58593750 ordinary shares to 14 investors by issuing shares to specific objects in a simple procedure, The issue price per share is 5.12 yuan / share, and the total amount of raised funds is 30000000 yuan. After this issuance, the total share capital of the company will be increased to 859669029 shares, and the new shares will be listed on the gem of Shenzhen Stock Exchange on March 8, 2022.

Mr. Wang Haoyu, the controlling shareholder and actual controller of the company, and Ms. Qiu Ling, the person acting in concert, changed the proportion of shares held by the company by more than 1% due to the passive dilution of shares issued by the company to specific objects through simple procedures; The details are as follows: 1 Basic information

Information disclosure obligor Wang Haoyu

Address: No. 10, minwang Road, Jingbin Industrial Park, Wuqing District, Tianjin

Acting in concert with Qiu Ling

Address: No. 8, Nanhuan East Road, Suzhou District, Jiuquan City, Gansu Province

Change time of Equity: March 8, 2022

Stock abbreviation Dayu Water-Saving Group Co.Ltd(300021) stock code Dayu Water-Saving Group Co.Ltd(300021)

Change type

(more can be added □ less ■ persons acting in concert have ■ none □

(optional)

Whether it is the largest shareholder or actual controller yes ■ no □

2. Changes in equity this time

Shareholder name share type (a) number of shares increased / decreased (10000 shares) proportion of increase / decrease (%)

Shares, B shares, etc.)

Wang Haoyu A shares 0.1.58%

Qiu Ling A-Shares 0.1.54%

Total 0.3.12%

Centralized trading through stock exchange □ agreement transfer □

Block trading through stock exchange □ indirect transfer □

The way of this equity change (administrative transfer or change of multi-national shares □ execution of court ruling □

(optional) acquisition of new shares issued by listed companies □ succession □

Gift □ transfer of voting rights □

Others ■ (due to the passive dilution of the shareholding ratio of the company issuing new shares to specific objects)

3. Shares of listed companies owned by investors and persons acting in concert before and after the change

Shares held before this change shares held after this change

Nature of shares as a proportion of total share capital as a proportion of total share capital number of shares (shares) cases (%) number of shares (shares) cases (%)

Wang Haoyu holds 23.19% of 185748831 shares and 21.61% of 185748831 shares

Including: shares with unlimited sales conditions 1393116235.80% 1393116235.40%

Shares with limited sales conditions 4643720817.39% 4643720816.21%

Qiu Ling holds 22.63% of 181318818 shares and 21.09% of 181318818 shares

Including: shares with unlimited sales conditions: 18131881822.63%, 18131881821.09%

Shares with limited sales conditions 0-

4. Implementation of commitments, plans, etc

Whether this change has been made for performance yes □ no ■

If yes, please explain the specific conditions and implementation progress of the commitment, intention and plan.

Is there any violation of the securities law and the purchase of Listed Companies in this change

Administrative measures and other laws yes □ no ■

Laws and regulations, departmental rules and regulations, if yes, please explain the specific situation of violations, rectification plan and treatment measures. 5. Documents and business rules of the exchange Shares with restricted voting rights

According to Article 60 of the securities law, yes □ no ■

Whether the provisions of Article 3 exist. If so, please explain the proportion of the corresponding number of shares in the share capital of the existing listed company. Non voting shares 6 Further description of the transfer of voting rights (not applicable) 7 Further explanation on the increase of shares held by more than 30% shareholders (not applicable) 8 Documents for future reference

1. Details of changes in shareholding of China Securities Clearing Co., Ltd

2. Relevant written commitment documents

3. Written opinions of lawyers

4. Other documents required by the exchange

It is hereby announced.

Dayu Water-Saving Group Co.Ltd(300021) board of directors March 8, 2022

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