Cluster Group Holdings Ltd Co SEC filings CLUS
Cluster Group Holdings Ltd Co has 181 filings in SEC EDGAR's recent list, going back to Jan 9, 2006. Its latest annual report, Form 10-K, was filed on Jun 12, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on May 29, 2018 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Aug 14, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | Jun 25, 2026 | Mar 31, 2026 |
| 10-K | Annual report | Jun 12, 2026 | Dec 31, 2025 |
| NT 10-Q | Request for extension | May 15, 2026 | Mar 31, 2026 |
| NT 10-K | Extension | Mar 31, 2026 | Dec 31, 2025 |
| 10-Q | Quarterly report | Nov 14, 2025 | Sep 30, 2025 |
| 10-Q | Quarterly report | Aug 14, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | Jul 7, 2025 | Mar 31, 2025 |
| NT 10-Q | Extension | May 15, 2025 | Mar 31, 2025 |
| 10-K | Annual report | Apr 15, 2025 | Dec 31, 2024 |
| NT 10-K | Extension | Mar 31, 2025 | Dec 31, 2024 |
| 10-Q | Quarterly report | Nov 15, 2024 | Sep 30, 2024 |
| NT 10-Q | Filing | Nov 15, 2024 | Sep 30, 2024 |
| UPLOAD | Letter from the SEC | Nov 6, 2024 | — |
| CORRESP | Letter to the SEC | Oct 31, 2024 | — |
| 10-12G/A | Amendment no 2 | Oct 31, 2024 | — |
| UPLOAD | Letter from the SEC | Oct 31, 2024 | — |
| CORRESP | Letter to the SEC | Oct 16, 2024 | — |
| 10-12G/A | Filing | Oct 16, 2024 | — |
| UPLOAD | Letter from the SEC | Sep 24, 2024 | — |
| 10-12G | Filing | Aug 27, 2024 | — |
| 15-15D | Filing | Nov 6, 2020 | — |
| NT 10-Q | Notification of late filing | Aug 14, 2018 | Jun 30, 2018 |
| 10-K/A | Amended annual report | Jun 27, 2018 | Dec 31, 2017 |
| 10-K/A | Amended annual report | Jun 26, 2018 | Dec 31, 2017 |
| 10-Q | Quarterly report | Jun 1, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Officer or director change
|
May 29, 2018 | May 25, 2018 |
| NT 10-Q | Notification of late filing | May 17, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Officer or director change
|
Apr 27, 2018 | Apr 24, 2018 |
| 8-K |
Current report
Officer or director change
|
Apr 13, 2018 | Apr 12, 2018 |
| 10-K | Annual report | Apr 2, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Officer or director change
|
Jan 4, 2018 | Dec 29, 2017 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Dec 22, 2017 | Dec 22, 2017 |
| 10-Q | Quarterly report | Nov 21, 2017 | Sep 30, 2017 |
| 8-K/A |
Amended current report
Material agreement, Acquisition or sale of assets, Results of operations, Unregistered share sale, Officer or director change
|
Nov 15, 2017 | Nov 13, 2017 |
| NT 10-Q | Notification of late filing | Nov 15, 2017 | Sep 30, 2017 |
| 8-K/A |
Amended current report
Material agreement, Acquisition or sale of assets, Results of operations, Unregistered share sale, Officer or director change
|
Nov 14, 2017 | Nov 13, 2017 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Results of operations, Unregistered share sale, Officer or director change
|
Nov 13, 2017 | Nov 13, 2017 |
| NT 10-Q | Notification of late filing | Aug 14, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Auditor change
|
Jul 12, 2017 | Jul 6, 2017 |
| 8-K |
Current report
Auditor change
|
Jul 5, 2017 | Jun 28, 2017 |
| 10-Q | Quarterly report | May 23, 2017 | Mar 31, 2017 |
| NT 10-Q | Notification of late filing | May 15, 2017 | Mar 31, 2017 |
| 10-K | Annual report | Mar 27, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Auditor change
|
Dec 2, 2016 | Dec 2, 2016 |
| 8-K/A |
Amended current report
Material agreement, Unregistered share sale, Officer or director change
|
Nov 15, 2016 | Nov 15, 2016 |
| 8-K |
Current report
Auditor change
|
May 14, 2015 | May 8, 2015 |
| 8-K/A |
Amended current report
Material agreement, Acquisition or sale of assets, Results of operations, Unregistered share sale, Change in control, Officer or director change
|
Apr 17, 2015 | Apr 17, 2015 |
| 10-K | Annual report | Apr 15, 2015 | Dec 31, 2014 |
| NT 10-K | Notification of late filing | Mar 31, 2015 | Dec 31, 2014 |
| 8-K |
Current report
Officer or director change
|
Mar 20, 2015 | Mar 19, 2015 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Results of operations, Unregistered share sale, Change in control, Officer or director change
|
Jan 29, 2015 | Jan 28, 2015 |
| 10-Q | Quarterly report | Nov 18, 2014 | Sep 30, 2014 |
| 8-K |
Current report
Auditor change
|
Nov 18, 2014 | Nov 12, 2014 |
| NT 10-Q | Notification of late filing | Nov 17, 2014 | Sep 30, 2014 |
| 10-Q | Quarterly report | Aug 14, 2014 | Jun 30, 2014 |
| 8-K |
Current report
Material agreement
|
Aug 8, 2014 | Jun 30, 2014 |
| 8-K |
Current report
Auditor change
|
Aug 4, 2014 | Jul 31, 2014 |
| 10-Q | Quarterly report | May 20, 2014 | Mar 31, 2014 |
| NT 10-Q | Form nt 10-q | May 16, 2014 | Mar 31, 2014 |
| 10-K | Annual report | Apr 21, 2014 | Dec 31, 2013 |
| NT 10-K | Form nt 10-k | Apr 1, 2014 | Dec 31, 2013 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Jan 17, 2014 | Jan 7, 2014 |
| 10-Q | Quarterly report | Nov 29, 2013 | Sep 30, 2013 |
| NT 10-Q | Form nt 10-q | Nov 15, 2013 | Sep 30, 2013 |
| 10-Q | Quarterly report | Aug 23, 2013 | Jun 30, 2013 |
| NT 10-Q | Form nt 10-q | Aug 15, 2013 | Jun 30, 2013 |
| 8-K |
Current report
Officer or director change
|
Jun 7, 2013 | Jun 6, 2013 |
| 10-Q | Quarterly report | May 20, 2013 | Mar 31, 2013 |
| NT 10-Q | Filing | May 16, 2013 | Mar 31, 2013 |
| 10-K | Annual report | Apr 22, 2013 | Dec 31, 2012 |
| NT 10-K | Filing | Apr 1, 2013 | Dec 31, 2012 |
| 8-K |
Current report
Officer or director change
|
Mar 27, 2013 | Jan 24, 2013 |
| 10-Q | Quarterly report | Nov 14, 2012 | Sep 30, 2012 |
| 10-Q | Quarterly report | Aug 14, 2012 | Jun 30, 2012 |
| 10-Q | Quarterly report | May 15, 2012 | Mar 31, 2012 |
| 10-K/A | Amended annual report | May 15, 2012 | Dec 31, 2011 |
| 10-K | Annual report | Apr 16, 2012 | Dec 31, 2011 |
| 10-Q/A | Amended quarterly report | Apr 16, 2012 | Sep 30, 2011 |
| 10-Q/A | Amended quarterly report | Apr 16, 2012 | Jun 30, 2011 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Bylaw or fiscal year change, Other events
|
Apr 5, 2012 | Mar 30, 2012 |
| NT 10-K | Extension of the 2011 annual report | Mar 30, 2012 | Dec 31, 2011 |
| 10-Q | Quarterly report | Dec 30, 2011 | Sep 30, 2011 |
| 10-Q | Quarterly report | Dec 30, 2011 | Jun 30, 2011 |
| 10-Q | Quarterly report | Dec 30, 2011 | Mar 31, 2011 |
| 10-K | Annual report | Dec 29, 2011 | Dec 31, 2010 |
| 8-K |
Current report
Material agreement
|
Dec 1, 2011 | Nov 28, 2011 |
| NT 10-K | Extension form 10k 12/31/10 | Apr 1, 2011 | Dec 31, 2010 |
| 10-Q | Quarterly report | Nov 16, 2010 | Sep 30, 2010 |
| NT 10-Q | Quarterly extension | Nov 16, 2010 | Sep 30, 2010 |
| 10-Q | Quarterly report | Aug 16, 2010 | Jun 30, 2010 |
| 10-Q | Quarterly report | May 20, 2010 | Mar 31, 2010 |
| NT 10-Q | Extension to quarterly report | May 18, 2010 | Mar 31, 2010 |
| 10-K | Annual report | Apr 15, 2010 | Dec 31, 2009 |
| NT 10-K | Form 10k extension | Mar 31, 2010 | Dec 31, 2009 |
| 8-K |
Current report
Officer or director change
|
Mar 22, 2010 | Mar 12, 2010 |
| 8-K |
Current report
Material agreement
|
Jan 4, 2010 | Dec 29, 2009 |
| 10-Q | Quarterly report | Nov 16, 2009 | Sep 30, 2009 |
| 8-K |
Current report
Officer or director change
|
Sep 22, 2009 | Sep 21, 2009 |
| 10-Q | Quarterly report | Aug 14, 2009 | Jun 30, 2009 |
| 4 | Insider transaction | Jul 24, 2009 | Jul 16, 2009 |
| 4 | Insider transaction | Jul 13, 2009 | Jul 6, 2009 |
| 4 | Insider transaction | Jul 1, 2009 | Jun 29, 2009 |
| 10-Q | Quarterly report | May 14, 2009 | Mar 31, 2009 |
| 10-K | Annual report | Mar 30, 2009 | Dec 31, 2008 |
| DEF 14C | Information statement | Dec 29, 2008 | Jan 20, 2009 |
| PRE 14C | Information statement | Dec 17, 2008 | Dec 16, 2008 |
| 10-Q | Quarterly report | Nov 14, 2008 | Sep 30, 2008 |
| 3 | Initial insider ownership | Nov 7, 2008 | Oct 16, 2008 |
| 8-K |
Current report
Material agreement
|
Nov 5, 2008 | Nov 3, 2008 |
| 8-K |
Current report
Officer or director change
|
Oct 17, 2008 | Oct 16, 2008 |
| 10-Q | Quarterly report | Aug 11, 2008 | Jun 30, 2008 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale
|
Jul 31, 2008 | Jul 29, 2008 |
| 4 | Insider transaction | Jul 2, 2008 | Jun 30, 2008 |
| 4 | Insider transaction | Jul 2, 2008 | May 14, 2008 |
| 4 | Insider transaction | May 22, 2008 | May 14, 2008 |
| 10-Q | Quarterly report | May 20, 2008 | Mar 31, 2008 |
| NT 10-Q | Quarterly extension for the period ending 03/08 | May 16, 2008 | Mar 31, 2008 |
| 3 | Initial insider ownership | May 6, 2008 | Apr 30, 2008 |
| 8-K |
Current report
New debt, Unregistered share sale
|
Apr 24, 2008 | Apr 22, 2008 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Apr 9, 2008 | Apr 7, 2008 |
| 10KSB | 2007 annual year end report | Mar 31, 2008 | Dec 31, 2007 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Mar 11, 2008 | Feb 14, 2008 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Feb 28, 2008 | Feb 21, 2008 |
| EFFECT | Filing | Feb 4, 2008 | — |
| CORRESP | Letter to the SEC | Jan 31, 2008 | — |
| SB-2/A | Amendment no. 8 to registration statement | Jan 31, 2008 | — |
| SB-2/A | Amendment no. 7 to registration statement | Jan 28, 2008 | — |
| UPLOAD | Letter from the SEC | Jan 24, 2008 | — |
| SB-2/A | Amendment no. 6 to registration statement | Jan 18, 2008 | — |
| CORRESP | Letter to the SEC | Jan 14, 2008 | — |
| CORRESP | Letter to the SEC | Jan 14, 2008 | — |
| SB-2/A | Amendment no. 5 to registration statement | Jan 14, 2008 | — |
| SB-2/A | Amendment no. 4 to registration statement | Jan 8, 2008 | — |
| UPLOAD | Letter from the SEC | Jan 4, 2008 | — |
| SB-2/A | Amendment no. 3 to registration statement | Dec 28, 2007 | — |
| UPLOAD | Letter from the SEC | Dec 18, 2007 | — |
| SB-2/A | Amendment no. 2 to registration statement | Dec 7, 2007 | — |
| UPLOAD | Letter from the SEC | Nov 23, 2007 | — |
| 10QSB | Quarterly report for the period ending 09/07 | Nov 15, 2007 | Sep 30, 2007 |
| NT 10-Q | Quarterly extension for the period ending 09/07 | Nov 14, 2007 | Sep 30, 2007 |
| SB-2/A | Amendment no. 1 to registration statement | Nov 13, 2007 | — |
| UPLOAD | Letter from the SEC | Oct 5, 2007 | — |
| SB-2 | Registration statement | Sep 4, 2007 | — |
| REGDEX | Auto-generated paper document | Aug 28, 2007 | — |
| 10QSB | Quarterly report for the period ending 06/07 | Aug 20, 2007 | Jun 30, 2007 |
| NT 10-Q | Form 10-qsb extension for the period ending 06/07 | Aug 14, 2007 | Jun 30, 2007 |
| 8-K/A |
Amended current report
Material agreement, New debt, Unregistered share sale
|
Aug 8, 2007 | Aug 6, 2007 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Aug 1, 2007 | Aug 1, 2007 |
| 10QSB | Quarterly report for the period ending 03/07 | May 21, 2007 | Mar 31, 2007 |
| NT 10-Q | Quarterly extension for period ending 03/07 | May 15, 2007 | Mar 31, 2007 |
| 8-K |
Current report
Auditor change
|
May 14, 2007 | Apr 30, 2007 |
| 10KSB | 2006 annual year end report | Apr 16, 2007 | Dec 31, 2006 |
| CORRESP | Letter to the SEC | Apr 12, 2007 | — |
| 8-K/A |
Amended current report
Auditor change
|
Apr 11, 2007 | Apr 4, 2007 |
| UPLOAD | Letter from the SEC | Apr 9, 2007 | — |
| 8-K |
Current report
Auditor change
|
Apr 6, 2007 | Apr 4, 2007 |
| NT 10-K | 2006 annual year end report extension | Apr 2, 2007 | Dec 31, 2006 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Change in control, Officer or director change
|
Mar 29, 2007 | Mar 27, 2007 |
| 8-K |
Current report
Officer or director change
|
Jan 9, 2007 | Jan 8, 2007 |
| 10QSB | Filing | Oct 31, 2006 | Sep 30, 2006 |
| 8-K |
Current report
Officer or director change
|
Oct 31, 2006 | Sep 30, 2006 |
| EFFECT | Filing | Aug 29, 2006 | — |
| POS AM | Filing | Aug 28, 2006 | — |
| 10QSB | Filing | Aug 14, 2006 | Jun 30, 2006 |
| 424A | Filing | May 17, 2006 | — |
| 424A | Filing | May 15, 2006 | — |
| SB-2/A | Filing | Apr 21, 2006 | — |
| UPLOAD | Letter from the SEC | Apr 19, 2006 | — |
| SB-2/A | Filing | Apr 17, 2006 | — |
| SB-2/A | Filing | Apr 14, 2006 | — |
| UPLOAD | Letter from the SEC | Apr 12, 2006 | — |
| SB-2/A | Filing | Apr 6, 2006 | — |
| UPLOAD | Letter from the SEC | Apr 3, 2006 | — |
| SB-2/A | Filing | Mar 24, 2006 | — |
| UPLOAD | Letter from the SEC | Mar 20, 2006 | — |
| SB-2/A | Filing | Mar 14, 2006 | — |
| UPLOAD | Letter from the SEC | Mar 3, 2006 | — |
| SB-2/A | Filing | Feb 16, 2006 | — |
| UPLOAD | Letter from the SEC | Feb 1, 2006 | — |
| SB-2 | Registration statement on form sb-2 | Jan 9, 2006 | — |
Showing 181 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Communications Services, NEC (SIC 4899)
- Listed as
- CLUS (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- FL
- Headquarters
- Shanghai
- SEC filer status
- Non-accelerated filer, Smaller reporting company, Emerging growth company
- SEC CIK
- 1346287
- Former names
- China Teletech Holding Inc (until Nov 15, 2024); GuangZhou Global Telecom, Inc. (until Dec 30, 2011); Guangzhou Global Telecom, Inc. (until Dec 30, 2011); AVALON DEVELOPMENT ENTERPRISES, INC. (until Jan 9, 2007)
Other Communications Services, NEC companies
- EchoStar CORP ECHO
- AST SpaceMobile, Inc. ASTS
- Globalstar, Inc. GSAT
- Viasat Inc VSAT
- Iridium Communications Inc. IRDM
- Calix, Inc CALX
- Telesat Corp TSAT
- Spire Global, Inc. SPIR
Source: SEC EDGAR filings. This is company-reported data, not investment advice.