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Year archive

China Oilfield Services Limited — 2026 filings

All 63 regulatory filings released by China Oilfield Services Limited (2883) in 2026, sourced directly from the official regulator.

63 Filings
2026 Period
2026 filings (63)
Filing Released Lang
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-06-03 English
Monthly Return of Equity Issuer on Movements in Securities for The Month Ended 31 May 2026
Regulatory Filings
2026-06-01 English
POLL RESULTS OF ANNUAL GENERAL MEETING AND H SHAREHOLDERS CLASS MEETING HELD ON 22 MAY 2026
Declaration of Voting Results & Voting Rights Announcements
2026-05-22 English
FINAL DIVIDEND FOR THE YEAR ENDED 31 DECEMBER 2025 (UPDATED)
Notice of Dividend Amount
2026-05-22 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-05-20 English
Monthly Return of Equity Issuer on Movements in Securities for The Month Ended 30 April 2026
Regulatory Filings
2026-05-06 English
FINAL DIVIDEND FOR THE YEAR ENDED 31 DECEMBER 2025 (UPDATED)
Notice of Dividend Amount
2026-04-29 English
Proxy Form for 2026 First H Shareholders Class Meeting
Proxy Solicitation & Information Statement
2026-04-29 English
Proxy Form for 2025 Annual General Meeting
Proxy Solicitation & Information Statement
2026-04-29 English
NOTICE OF 2025 ANNUAL GENERAL MEETING
Proxy Solicitation & Information Statement
2026-04-29 English
CIRCULAR - FINANCIAL STATEMENTS AND AUDITOR REPORT; FINAL DIVIDEND DISTRIBUTION; THE BOARD REPORT; RE-APPOINTMENT OF AUDIT FIRMS; US DOLLAR LOANS EXTENSION BY WHOLLY-OWNED SUBSIDIARY AND GUARANTEE BY
Proxy Solicitation & Information Statement
2026-04-29 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-04-22 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-04-22 English
CONTINUING CONNECTED TRANSACTIONS - ENTERING INTO THE FINANCIAL SERVICES FRAMEWORK AGREEMENT
Regulatory Filings
2026-04-22 English
2026 First Quarterly Report
Interim / Quarterly Report Q1 2026
2026-04-22 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-04-21 English
2026 FIRST QUARTERLY RESULTS PRESENTATION
Report Publication Announcement
2026-04-14 English
Reminder Letter and Reply Form to Non-registered Shareholders -- Reminder letter regarding the Arrangement of Electronic Dissemination of Corporate Communications
Regulatory Filings
2026-04-14 English
Reminder Letter and Reply Form to Registered Shareholders -- Reminder letter regarding the Arrangement of Electronic Dissemination of Corporate Communications
Regulatory Filings
2026-04-14 English
2025 Environmental, Social and Governance (ESG) Report
Environmental & Social Information
2026-04-14 English
2025 ANNUAL REPORT
Annual Report FY 2025
2026-04-14 English
Monthly Return of Equity Issuer on Movements in Securities for The Month Ended 31 March 2026
Regulatory Filings
2026-04-09 English
NOTICE OF BOARD MEETING
Regulatory Filings
2026-04-07 English
VOLUNTARY ANNOUNCEMENT - EXTENSION OF THE SHAREHOLDING INCREASE PLAN BY THE CONTROLLING SHAREHOLDER
Major Shareholding Notification
2026-04-02 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Report Publication Announcement
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-24 English
FINAL DIVIDEND FOR THE YEAR ENDED 31 DECEMBER 2025
Notice of Dividend Amount
2026-03-24 English
ANNUAL RESULTS ANNOUNCEMENT FOR THE YEAR ENDED 31 DECEMBER 2025
Earnings Release FY 2025
2026-03-24 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-23 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-17 English
PUBLICATION OF THE OFFERING CIRCULAR - CNY5,000,000,000 1.95% GUARANTEED NOTES DUE 2029 ISSUED BY COSL SINGAPORE CAPITAL LTD. AND UNCONDITIONALLY AND IRREVOCABLY GUARANTEED BY CHINA OILFIELD SERVICES
Report Publication Announcement
2026-03-17 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-16 English
NOTICE OF LISTING ON THE STOCK EXCHANGE OF HONG KONG LIMITED - CNY5,000,000,000 1.95% GUARANTEED NOTES DUE 2029 ISSUED BY COSL SINGAPORE CAPITAL LTD. AND UNCONDITIONALLY AND IRREVOCABLY GUARANTEED BY
Capital/Financing Update
2026-03-16 English
2025 ANNUAL RESULTS PRESENTATION
Report Publication Announcement
2026-03-12 English
VOLUNTARY ANNOUNCEMENT - ISSUE OF CNY5,000,000,000 1.95% GUARANTEED NOTES DUE 2029
Capital/Financing Update
2026-03-10 English
VOLUNTARY ANNOUNCEMENT - PROPOSED ISSUANCE OF GUARANTEED NOTES
Capital/Financing Update
2026-03-09 English
NOTICE OF BOARD MEETING
Report Publication Announcement
2026-03-05 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-03-03 English
Monthly Return of Equity Issuer on Movements in Securities for The Month Ended 28 February 2026
Regulatory Filings
2026-03-02 English
Monthly Return of Equity Issuer on Movements in Securities for The Month Ended 31 January 2026 (Revised)
Regulatory Filings
2026-03-02 English
Monthly Return of Equity Issuer on Movements in Securities for The Month Ended 31 January 2026
Share Issue/Capital Change
2026-02-03 English
STRATEGIC GUIDANCE FOR 2026
Regulatory Filings
2026-01-23 English
An announcement has just been published by the issuer in the Chinese section of this website, a corresponding version of which may or may not be published in this section.
Regulatory Filings
2026-01-20 English
Monthly Return of Equity Issuer on Movements in Securities for The Month Ended 31 December 2025
Regulatory Filings
2026-01-05 English