Riemannsum Group Limited
曼和科技集團有限公司
About this company
Riemannsum Group Limited is a Hong Kong private company limited by shares incorporated on August 15, 2019. It is registered with company registration (CR) number 2863767 and business registration number (BRN) 71071119. It is one of 126,770 companies incorporated in Hong Kong in 2019. The company is currently active on the Hong Kong Companies Register. It previously operated under the name Riemannsum Limited until March 25, 2021. Its registered office is at ROOM 1303, COFCO TOWER, 262 GLOUCESTER ROAD, CAUSEWAY BAY HONG KONG. There are 18 documents on file with the Companies Registry dating back to 2019, most recently (E)FND2B - Notice of Change in Particulars of Company Secretary and Director filed on September 16, 2025.
Company Information
- CR Number
- 2863767
- BRN
- 71071119
- Company Type
- Private company limited by shares
- Type Category
- Local company
Dates & Status
- Incorporation Date
- 2019-08-15
- Has Charges
- No
- Dormant
- No
Compliance & Flags
- One-member Company
- Yes 2023-08-15
Registered office
Current address
ROOM 1303, COFCO TOWER, 262 GLOUCESTER ROAD, CAUSEWAY BAY HONG KONG
1 earlier registered-office address on file for this company. (earliest on record: 2023-08-01)
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Name History
| Name | From | To |
|---|---|---|
| 曼和科技集團有限公司 | 2021-03-25 | Current |
| 曼和環球科技有限公司 | 2019-08-15 | 2021-03-25 |
| Riemannsum Group Limited | 2021-03-25 | Current |
| Riemannsum Limited | 2019-08-15 | 2021-03-25 |
Company Documents
(E)FND2B - Notice of Change in Particulars of Company Secretary and Director
2025-09-16 · Director/Secretary Change
(E)FND2B - Notice of Change in Particulars of Company Secretary and Director
2025-09-16 · Director/Secretary Change
(E)FNR1 - Notice of Change of Address of Registered Office
2025-09-16 · Address Change
(E)FNAR1 - Annual Return
2025-08-19 · Annual Return
(E)FNAR1 - Annual Return
2024-08-16 · Annual Return
Information Sheet regarding Using Business Registration Number as Unique Business Identifier
2023-12-27 · Other
(E)FNAR1 - Annual Return
2023-08-24 · Annual Return
(E)FNR1 - Notice of Change of Address of Registered Office
2023-08-09 · Address Change
(E)FND2B - Notice of Change in Particulars of Company Secretary and Director
2023-08-09 · Director/Secretary Change
(E)FNAR1 - Annual Return
2022-08-24 · Annual Return
(E)FNAR1 - Annual Return
2021-09-02 · Annual Return
(E)FNNC2 - Notice of Change of Company Name
2021-03-25 · Name Change
Certificate of Change of Name
2021-03-25 · Name Change
(E)FNAR1 - Annual Return
2020-08-27 · Annual Return
(E)FND2B - Notice of Change in Particulars of Company Secretary and Director
2020-08-27 · Director/Secretary Change
(E)FNNC1 - Incorporation Form (Company Limited by Shares)
2019-08-15 · Share Related
(E)Articles of Association
2019-08-15 · Memorandum & Articles
Certificate of Incorporation
2019-08-15 · Incorporation
| Document | Type | Filing Date | Order |
|---|---|---|---|
| (E)FND2B - Notice of Change in Particulars of Company Secretary and Director | Director/Secretary Change | 2025-09-16 | |
| (E)FND2B - Notice of Change in Particulars of Company Secretary and Director | Director/Secretary Change | 2025-09-16 | |
| (E)FNR1 - Notice of Change of Address of Registered Office | Address Change | 2025-09-16 | |
| (E)FNAR1 - Annual Return | Annual Return | 2025-08-19 | |
| (E)FNAR1 - Annual Return | Annual Return | 2024-08-16 | |
| Information Sheet regarding Using Business Registration Number as Unique Business Identifier | Other | 2023-12-27 | |
| (E)FNAR1 - Annual Return | Annual Return | 2023-08-24 | |
| (E)FNR1 - Notice of Change of Address of Registered Office | Address Change | 2023-08-09 | |
| (E)FND2B - Notice of Change in Particulars of Company Secretary and Director | Director/Secretary Change | 2023-08-09 | |
| (E)FNAR1 - Annual Return | Annual Return | 2022-08-24 | |
| (E)FNAR1 - Annual Return | Annual Return | 2021-09-02 | |
| (E)FNNC2 - Notice of Change of Company Name | Name Change | 2021-03-25 | |
| Certificate of Change of Name | Name Change | 2021-03-25 | |
| (E)FNAR1 - Annual Return | Annual Return | 2020-08-27 | |
| (E)FND2B - Notice of Change in Particulars of Company Secretary and Director | Director/Secretary Change | 2020-08-27 | |
| (E)FNNC1 - Incorporation Form (Company Limited by Shares) | Share Related | 2019-08-15 | |
| (E)Articles of Association | Memorandum & Articles | 2019-08-15 | |
| Certificate of Incorporation | Incorporation | 2019-08-15 |
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Frequently asked questions
When was Riemannsum Group Limited incorporated?
Riemannsum Group Limited was incorporated in Hong Kong on August 15, 2019.
Is Riemannsum Group Limited still active?
Yes. Riemannsum Group Limited is currently active on the Hong Kong Companies Register.
What are Riemannsum Group Limited's CR number and BRN?
Riemannsum Group Limited's company registration (CR) number is 2863767 and its business registration number (BRN) is 71071119.
Where is Riemannsum Group Limited's registered office?
Riemannsum Group Limited's registered office is at ROOM 1303, COFCO TOWER, 262 GLOUCESTER ROAD, CAUSEWAY BAY HONG KONG.
What type of company is Riemannsum Group Limited?
Riemannsum Group Limited is a private company limited by shares on the Hong Kong Companies Registry.
How many documents has Riemannsum Group Limited filed?
Riemannsum Group Limited has 18 documents on file with the Hong Kong Companies Registry, dating back to 2019.
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