| 5992 CHUO SPRING CO.,LTD. |
| 01/20/2026 11:00 | Notice of TECHNICAL ASSISTANCE AND LICENSING AGREEMENT with Suprajit |
| 05/28/2025 08:00 | NOTICE OF THE 102nd ORDINARY GENERAL MEETING OF SHAREHOLDERS |
10/1 What's new: Rigaku Holdings(268A)
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| 5992 CHUO SPRING CO.,LTD. |
| 01/20/2026 11:00 | Notice of TECHNICAL ASSISTANCE AND LICENSING AGREEMENT with Suprajit |
| 05/28/2025 08:00 | NOTICE OF THE 102nd ORDINARY GENERAL MEETING OF SHAREHOLDERS |

