Baidu : INSIDE INFORMATION - BUSINESS UPDATE ON CERTAIN OPERATING METRICS

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

Under our weighted voting rights structure, our share capital comprises Class A ordinary shares and Class B ordinary shares. Each Class A ordinary share entitles the holder to exercise one vote, and each Class B ordinary share entitles the holder to exercise 10 votes, respectively, on all matters subject to the vote at general meetings of the Company. Shareholders and prospective investors should be aware of the potential risks of investing in a company with a weighted voting rights structure. Our American depositary shares, each representing eight of our Class A ordinary shares, are listed on Nasdaq in the United States under the symbol BIDU.

Baidu, Inc.

百度集團股份有限公司

(A company controlled through weighted voting rights and incorporated in the Cayman Islands with limited liability)

(Stock Code: 9888)

INSIDE INFORMATION

BUSINESS UPDATE ON CERTAIN OPERATING METRICS

This announcement is issued pursuant to Rule 13.09 of the Rules Governing the Listing of the Securities on The Stock Exchange of Hong Kong Limited (the "Listing Rules") and under Part XIVA of the Securities and Futures Ordinance (Cap. 571).

On April 26, 2021, Baidu, Inc. (the "Company") planned to announce certain operating metrics on its Mobile Ecosystem at the 2021 Wanxiang Conference as follows:

• Baidu App's monthly active users ("MAUs") reached 558 million, among which daily logged in users accounted for over 75%, in March 2021;
• Baijiahao (BJH) accounts reached 4.2 million as of March 31, 2021; and
• Smart Mini Program MAUs reached 416 million in March 2021.

By Order of the Board

Baidu, Inc.

Mr. Robin Yanhong Li

Chairman of the Board

and Chief Executive Officer

Hong Kong, April 26, 2021

As at the date of this announcement, the board of directors of the Company comprises Mr. Robin Yanhong Li as director, and Mr. James Ding, Mr. Brent Callinicos, Mr. Yuanqing Yang and Mr. Jixun Foo as independent directors.