Key facts
- This page summarizes Chiang Jing-Bin's Form 3 filing for J-Star Holding Co., Ltd. (YMAT).
- 0 reported transactions and 0 derivative rows are listed below.
- Accepted by SEC: 18 Mar 2026, 09:01.
Chiang Jing-Bin - 18 Mar 2026 Form 3 Insider Report for J-Star Holding Co., Ltd. (YMAT)
- Reporting relationship
- Director, Chairman, 10%+ Owner
- Issuer ticker
- YMAT
- Reported as of
- 18 Mar 2026
- Net transaction value
- $0
- Reporting owner signature
- /s/ Chiang Jing-Bin
Source evidence
Original filing metadata and source links for verification.
3 source fields
Reporting owner
1 detail
Key filing fact
Chiang Jing-Bin filed Form 3 for J-Star Holding Co., Ltd. (YMAT) on 18 Mar 2026.
Change
- No earlier filing in this sequence is available for direct comparison.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Official SEC source
View source filing
Ownership activity is grounded in SEC Form 3 disclosures.
Reporting Owners (1)
CIK 0002098136
Primary reporting owner
Chiang Jing-Bin
- Relationship
- Director, Chairman, 10%+ Owner
- Address
- 7/F-1, NO. 633, SEC. 2, TAIWAN BLVD.,, XITUN DISTRICT,, TAICHUNG CITY, TAIWAN
- Signature
- /s/ Chiang Jing-Bin
- Signature date
- 18 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
YMAT
holding
Class B Ordinary Shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 4,888,092
- Date
- 18 Mar 2026
- Ownership
- Refer to Footnote
- Footnotes
- F1
YMAT
holding
Class B Ordinary Shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 1,209,091
- Date
- 18 Mar 2026
- Ownership
- Direct
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
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 Jing-Bin Chiang is the sole shareholder and holds the voting and dispositive power over the ordinary shares held by such entity.