J-Star Holding Co., Ltd. — 424B4 Filings
1 424B4 filing on record
This page lists all 424B4 filings submitted to the SEC by J-Star Holding Co., Ltd. (YMAT), sorted by most recent first. Each row links to the full filing on EdgarLookup. J-Star Holding Co., Ltd. has filed 1 424B4 document with the SEC since 2021. To view all SEC filings by J-Star Holding Co., Ltd., see the full filings list.
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 424B4 | 424B4 | 0001641172-25-021687 | Jul 31, 2025 | — |