Announcements and Notices - [Date of Board Meeting]

DATE OF BOARD MEETING

Monthly Returns

Monthly Return of Equity Issuer on Movements in Securities for the Month Ended 31 July 2025

Announcements and Notices - [Profit Warning / Inside Information]

PROFIT WARNING

Announcements and Notices - [Discloseable Transaction]

update ANNOUNCEMENT COMPLETION OF MARKET SUPERVISION REGISTRATION PROCEDURES OF THE CAPITAL INCREASE IN HYDRAULIC ENGINEERING T&I SERVICE PROVIDER

Announcements and Notices - [Amendment of Constitutional Documents]

FURTHER AMENDMENT TO THE ARTICLES OF ASSOCIATION

Announcements and Notices - [Results of EGM/SGM / Amendment of Constitutional Documents / Change in Supervisors]

(1) POLL RESULT OF THE 2024 ANNUAL GENERAL MEETING HELD ON 16 MAY 2025； (2) FINAL DIVIDEND DISTRIBUTION PLAN For 2024； (3) AMENDMENTS TO THE ARTICLES OF ASSOCIATION； and (4) ABOLISHMENT OF SUPERVISorY COMMITTEE

Constitutional Documents

ARTICLES OF ASSOCIATION

Monthly Returns

Monthly Return of Equity Issuer on Movements in Securities for the Month Ended 30 April 2025

Circulars - [Other]

REPLY SLIP For THE 2024 ANNUAL GENERAL MEETING OF THE COMPANY TO BE HELD AT 9 A.M. ON FRIDAY， 16 MAY 2025 or AT ANY ADJOURNMENT THEREOF

Announcements and Notices - [Notice of AGM / Closure of Books or Change of Book Closure Period]

NOTICE OF THE 2024 ANNUAL GENERAL MEETING

Announcements and Notices - [Amendment of Constitutional Documents]

PROPOSED AMENDMENTS TO THE ARTICLES OF ASSOCIATION

Announcements and Notices - [Final Results / Other - Miscellaneous]

SUPPLEMENTAL ANNOUNCEMENT IN RELATION TO 2024 ANNUAL REPorT

Circulars - [Other]

Reminder Letter to Registered Shareholders and Reply Form - Arrangement of Electronic Dissemination of Corporate Communications

Financial Statements/ESG Information - [Annual Report / Environmental， Social and Governance Information/Report]

2024 Annual Report

Announcements and Notices - [Change in Company Secretary / Change in Registered Address or Office， Registered Place of Business in HK or Agent for Service of Process in HK]

CHANGE OF JOINT COMPANY SECRETARY， AUTHorISED REPRESENTATIVE and PROCESS AGENT； and WAIVER FROM STRICT COMPLIANCE WITH RULES 5.14 and 11.07(2) OF THE GEM LISTING RULES

Monthly Returns

Monthly Return of Equity Issuer on Movements in Securities for the month ended 28 February 2025

Monthly Returns

Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 December 2024

Circulars - [Other]

REPLY SLIP For THE EXTRAorDINARY GENERAL MEETING OF THE COMPANY TO BE HELD AT 9 A.M. ON TUESDAY， 24 DECEMBER 2024 or AT ANY ADJOURNMENT THEREOF

Announcements and Notices - [Notice of EGM/SGM / Closure of Books or Change of Book Closure Period]

NOTICE OF EXTRAorDINARY GENERAL MEETING

Monthly Return of Equity Issuer on Movements in Securities for the month ended 30 November 2024

Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 October 2024

Announcements and Notices - [Results of EGM/SGM / Amendment of Constitutional Documents]

EXEMPTION UNDER RULE 18.53 OF THE GEM LISTING RULES REGARDING 2024 INTERIM REPORT

EXEMPTION UNDER RULE 18.53 OF THE GEM LISTING RULES REGARDING 2024 INTERIM REPORT

Proxy Forms

FORM OF PROXY FOR USE AT THE EXTRAORDINARY GENERAL MEETING OF THE COMPANY TO BE HELD ON TUESDAY， 8 OCTOBER 2024 or AT ANY ADJOURNMENT THEREOF

Circulars - [Amendment of Constitutional Documents / Other]

PROPOSED CHANGE OF REGISTERED ADDRESS and ADDRESS OF HEAD OFFICE IN CHINA and AMENDMENT TO THE ARTICLES OF ASSOCIATION and NOTICE OF EXTRAORDINARY GENERAL MEETING

Circulars - [Other]

Notification Letter to Non-Registered Holders

Circulars - [Other]

Notification Letter to Registered Shareholders

Announcement of Final Offer Price and Allotment Results

Announcements and Notices - [Allotment Results]

Terms of Reference For Nomination Committee Under The Board of Directors

Announcements and Notices - [Terms of Reference of the Nomination Committee]

Terms of Reference For Audit Committee Under The Board of Directors

Announcements and Notices - [Terms of Reference of the Audit Committee]

Documents on Display

Documents on Display (Multi-Files)

Announcements and Notices - [Formal Notice]

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