Bluemount Holdings investor discloses 16.2% Class B stake

The Schedule 13G says Ms. Siu Hiu Ki Jamie has sole voting and dispositive power over 2,274,185 Class B shares (16.2%) and no plans to influence control.

Rhea-AI Filing Summary

Bluemount Holdings Ltd (BMHL) received a Schedule 13G reporting that Ms. Siu Hiu Ki Jamie, a Singapore citizen, is the beneficial owner of 2,274,185 Class B ordinary shares, representing 16.2% of the Class B ordinary share class.

The filing states that Ms. Siu is deemed to beneficially own these shares through her 60% ownership of Bluemount Group Limited and 15.54% ownership of Echo International Holding Group Limited, which hold the BMHL Class B shares. She has sole voting and dispositive power over all 2,274,185 shares and indicates she has no intention to influence or control Bluemount Holdings Ltd.

Key Figures

Beneficially owned Class B ordinary shares: 2,274,185 shares Percent of Class B ordinary share class: 16.2% Sole voting power: 2,274,185 shares +3 more

6 metrics

Beneficially owned Class B ordinary shares 2,274,185 shares Class B ordinary shares of Bluemount Holdings Ltd reported by Ms. Siu Hiu Ki Jamie

Percent of Class B ordinary share class 16.2% Ownership percentage of Class B ordinary shares attributed to Ms. Siu

Sole voting power 2,274,185 shares Shares over which Ms. Siu has sole power to vote or direct the vote

Sole dispositive power 2,274,185 shares Shares over which Ms. Siu has sole power to dispose or direct the disposition

Ownership of Bluemount Group Limited 60% Equity interest held by Ms. Siu in Bluemount Group Limited

Ownership of Echo International Holding Group Limited 15.54% Equity interest held by Ms. Siu in Echo International Holding Group Limited

Key Terms

beneficially own, Sole Voting Power, Sole Dispositive Power, Percent of class, +1 more

5 terms

beneficially own financial

"is deemed to beneficially own the 2,274,185 Class B ordinary shares"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

Sole Voting Power financial

"5 | Sole Voting Power 2,274,185.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Sole Dispositive Power financial

"7 | Sole Dispositive Power 2,274,185.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Percent of class financial

"11 16.2 % 12 Comment for : Ms. Siu"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

Schedule 13G regulatory

"Bluemount Holdings Ltd (BMHL) received a Schedule 13G reporting"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake in Bluemount Holdings Ltd (BMHL) does Ms. Siu Hiu Ki Jamie report on this Schedule 13G?

Ms. Siu Hiu Ki Jamie reports beneficial ownership of 2,274,185 Class B ordinary shares of Bluemount Holdings Ltd, representing 16.2% of that share class. She reports sole voting and dispositive power over all of these shares.

How does Ms. Siu Hiu Ki Jamie hold her BMHL Class B shares?

Ms. Siu is deemed to beneficially own 2,274,185 Class B shares of BMHL through her 60% ownership of Bluemount Group Limited and 15.54% ownership of Echo International Holding Group Limited, which hold these BMHL shares.

Does the Schedule 13G for BMHL indicate any intent by Ms. Siu to control the company?

No. The Schedule 13G states that Ms. Siu Hiu Ki Jamie has no intention to influence or control Bluemount Holdings Ltd, even though she is deemed to beneficially own 2,274,185 Class B ordinary shares.

What voting and dispositive powers over BMHL shares does Ms. Siu report?

Ms. Siu reports sole voting power over 2,274,185 Class B ordinary shares and sole dispositive power over 2,274,185 shares, with no shared voting or dispositive power reported for Bluemount Holdings Ltd.

What is the citizenship of the reporting person in BMHL’s Schedule 13G?

The reporting person, Ms. Siu Hiu Ki Jamie, is a citizen of Singapore. She files the Schedule 13G as a beneficial owner of Class B ordinary shares of Bluemount Holdings Ltd (BMHL).

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/02/2026 - 06:25 AM EDT Accepted by SEC EDGAR 09/02/2026 - 06:25 AM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Bluemount Holdings Ltd

(Name of Issuer)

Class B ordinary shares

(Title of Class of Securities)

G1194L118

(CUSIP Number)

9/1/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G1194L118

1

Names of Reporting Persons

Siu Hiu Ki Jamie

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

SINGAPORE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,274,185.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,274,185.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,274,185.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

16.2 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Ms. Siu acquired 60% of Bluemount Group Limited and 15.54% of Echo International Holding Group Limited and, as a result, is deemed to beneficially own the 2,274,185 Class B ordinary shares of BMHL held by these entities. She has no intention to influence or control the Issuer.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Bluemount Holdings Ltd
(b)	Address of issuer's principal executive offices: ROOM 1007, CAPITAL CENTRE, 151 GLOUCESTER ROAD, WANCHAI, HONG KONG, 0000
Item 2.
(a)	Name of person filing: Ms. Siu Hiu Ki Jamie
(b)	Address or principal business office or, if none, residence: 21-01 , 22 St. Thomas Walk, Singapore 238107
(c)	Citizenship: Singapore
(d)	Title of class of securities: Class B ordinary shares
(e)	CUSIP Number(s): G1194L118
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2,274,185
(b)	Percent of class: Class B ordinary share
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,274,185
	(ii) Shared power to vote or to direct the vote: Nil
	(iii) Sole power to dispose or to direct the disposition of: 2,274,185
	(iv) Shared power to dispose or to direct the disposition of: Nil
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Siu Hiu Ki Jamie

Signature:	Siu Hiu Ki Jamie
Name/Title:	Siu Hiu Ki Jamie
Date:	09/02/2026