Sino Energy International : UPDATE ON FURTHER ANNOUNCEMENT (1) FURTHER DELAY IN PUBLICATION OF 2019 AUDITED ANNUAL RESULTS AND DESPATCH OF 2019 ANNUAL REPORT; (2) FURTHER DELAY IN PUBLICATION OF 2020 INTERIM RESULTS AND (3) CONTINUED SUSPENSION OF TRADING

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.

(Incorporated in the Cayman Islands with limited liability)

(Stock code: 1096)

UPDATE ON FURTHER ANNOUNCEMENT

(1) FURTHER DELAY IN PUBLICATION OF

2019 AUDITED ANNUAL RESULTS AND DESPATCH OF

2019 ANNUAL REPORT;

1. FURTHER DELAY IN PUBLICATION OF 2020 INTERIM RESULTS AND
2. CONTINUED SUSPENSION OF TRADING

References are made to the announcements ("Announcements") of Sino Energy International Holdings Group Limited (the "Company", together with its subsidiaries, the "Group") dated 31 March 2020, 15 May 2020, 2 June 2020, 30 June 2020, 8 July 2020, 31 July 2020, 5 August 2020, 31 August 2020, 30 September 2020, 6 November 2020, 30 November 2020, 31 December 2020 and 29 January 2021 in respect of the delay in the publication of audited annual results and annual report, as well as the unaudited interim results and interim report. Unless otherwise stated, capitalised terms used herein shall have the same meanings as those defined in the Announcements.

FURTHER DELAY IN PUBLICATION OF 2019 AUDITED ANNUAL RESULTS AND DESPATCH OF 2019 ANNUAL REPORT

As disclosed in the Company's announcement dated 29 January 2021, it is expected that the Audited Annual Results and the Annual Report will be published and despatched by 31 March 2021.

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Further time is required to complete the audit procedures for the Audited Annual Results. Based on the current plan, the Company expects that the Audited Annual Results and the Annual Report can be published by 30 April 2021.

FURTHER DELAY IN PUBLICATION OF 2020 INTERIM RESULTS

The deadline of the Company to issue its 2020 Interim Results is 31 August 2020 as required under the Listing Rules. However, the Company cannot issue its 2020 Interim Results until it first issues its Audited Annual Results. The Company expects that the 2020 Interim Results can be published in two weeks from the date of issuance of the Audited Annual Results.

CONTINUED SUSPENSION OF TRADING

At the request of the Company, trading in shares of the Company was suspended from 9:00 a.m. on 1 September 2020 and will remain suspended pending for the publication of Audited Annual Results and 2020 Interim Results.

Shareholders and potential investors of the Company should exercise caution when they deal or contemplate dealing in the Company's shares or other securities of the Company.

Further announcement(s) will be issued by the Company in relation to the above matters as and when appropriate.

By Order of the Board

Sino Energy International Holdings Group Limited

Chen Jianbao

Chairman

Hong Kong, 31 March 2021

As at the date of this announcement, the executive Directors are Mr. Chen Jianbao, Ms. Cai Xiuman, Mr. Zhang Wenbin, Mr. Wang Qingshan and Mr. Zhu Tianxiang; and the independent non-executive Directors are Mr. Chen Jinzhong, Roy, Mr. Chai Chung Wai and Mr. Chong Cha Hwa.

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