New Moon Corp (YMAT) reports 4.89M Class B shares in initial insider filing

Rhea-AI Filing Summary

J-Star Holding Co., Ltd. insider New Moon Corp filed an initial ownership report showing it directly holds 4,888,092 Class B Ordinary Shares. This Form 3 does not report a new trade; it establishes New Moon Corp as a more than ten percent beneficial owner of J-Star’s Class B shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider New Moon Corp

Role 10% Owner

Type	Security	Shares	Price	Value
holding	Class B Ordinary Shares	--	--	--

Holdings After Transaction: Class B Ordinary Shares — 4,888,092 shares (Direct)

Footnotes (1)

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

New Moon Corp

(Last) (First) (Middle)

OMC CHAMBERS, WICKHAMS CAY 1, ROAD TOWN,

(Street)

TORTOLA

(City) (State) (Zip)

VIRGIN ISLANDS, BRITISH

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
J-Star Holding Co., Ltd. [ YMAT ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B Ordinary Shares	4,888,092	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

The registered address of NEW MOON CORPORATION, a British Virgin Islands company, is OMC Chambers, Wickhams Cay 1, Road Town, Tortola, British Virgin Islands. 4,888,092 Class B Ordinary Shares directly held by NEW MOON CORPORATION of which Chiang Jing-Bin is the sole shareholder and holds the voting and dispositive power over the ordinary shares held by such entity.

	/s/ Chiang Jing-Bin, Director	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does New Moon Corp’s Form 3 filing for J-Star Holding (YMAT) show?

The Form 3 shows that New Moon Corp directly beneficially owns 4,888,092 Class B Ordinary Shares of J-Star Holding Co., Ltd. This is an initial ownership report, establishing its status as a major shareholder rather than disclosing a new transaction.

Did New Moon Corp buy or sell J-Star (YMAT) shares in this Form 3?

No, the filing does not show a purchase or sale. It is categorized as a holding entry with an unknown transaction code, indicating the disclosure of an existing position of 4,888,092 Class B Ordinary Shares rather than a newly executed trade.

How many J-Star (YMAT) shares does New Moon Corp report owning?

New Moon Corp reports total direct ownership of 4,888,092 Class B Ordinary Shares following the reported position. This figure reflects its beneficial ownership stake as a more than ten percent owner, based on the information disclosed in the Form 3 filing.

What type of security is reported in New Moon Corp’s J-Star (YMAT) Form 3?

The security reported is Class B Ordinary Shares of J-Star Holding Co., Ltd. The filing lists 4,888,092 Class B shares held directly, with no derivative securities reported in the derivative holdings section of the ownership disclosure.

Why is New Moon Corp considered a ten percent owner of J-Star (YMAT)?

In the Form 3, New Moon Corp is identified as a more than ten percent owner. This status reflects its substantial beneficial ownership of 4,888,092 Class B Ordinary Shares and triggers the requirement to file insider ownership reports under the applicable securities rules.