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Nippon Crucible co.,Ltd. — Investor Relations & Filings

Ticker · 5355 ISIN · JP3755400003 T Manufacturing
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Filings indexed 84 across all filing types
Latest filing 2026-04-23 Regulatory Filings
Country JP Japan
Listing T 5355

About Nippon Crucible co.,Ltd.

https://www.rutsubo.com/

Nippon Crucible Co., Ltd. is a comprehensive manufacturer specializing in refractories and industrial furnaces. The company's core operations are divided into three segments: Refractory, Engineering, and Real Estate. The Refractory business produces and sells a wide range of products, including its foundational graphite crucibles, for the casting, steel, and non-ferrous metal industries. It also supplies specialized refractories for incineration and nuclear power applications. The Engineering division designs, constructs, and maintains industrial furnaces, primarily for non-ferrous metals. The company leverages over a century of accumulated technology in metal melting solutions.

Recent filings

Filing Released Lang Actions
2025年度 当社取締役会の実効性評価について
Regulatory Filings
2026-04-23 Japanese
確認書
Regulatory Filings Classification · 100% confidence The document is titled '確認書' (Confirmation Letter) and explicitly references '金融商品取引法第24条の５の２第１項' (Article 24-5-2, Paragraph 1 of the Financial Instruments and Exchange Act). It serves as an officer certification regarding the accuracy of a semi-annual report. According to the 'CERTIFICATION RULE', documents that are primarily officer certifications or attestations, even if they reference a report (like a semi-annual report), should be classified as Regulatory Filings (RNS) rather than the report itself. H1 186
2025-11-13 Japanese
半期報告書－第186期(2025/04/01－2026/03/31)
Interim / Quarterly Report Classification · 100% confidence The document is a '半期報告書' (Semi-Annual Report) filed by Nippon Crucible Co., Ltd. under the Financial Instruments and Exchange Act of Japan. It contains comprehensive financial statements, including the balance sheet, income statement, and cash flow analysis for the interim period ending September 30, 2025. As it is a formal, comprehensive financial report for a period shorter than a full fiscal year, it falls under the 'Interim / Quarterly Report' category. H1 2026
2025-11-13 Japanese
確認書
Audit Report / Information Classification · 95% confidence The document is a 'Confirmation Letter' (確認書) filed under the Financial Instruments and Exchange Act, specifically related to a correction of a previously filed Annual Securities Report (有価証券報告書). Since it is a regulatory filing confirming the accuracy of a report correction and does not fit into the specific categories of a full report or a simple announcement, it is classified as a Regulatory Filing (RNS). FY 2025
2025-08-14 Japanese
訂正有価証券報告書－第185期(2024/04/01－2025/03/31)
Annual Report Classification · 100% confidence The document is identified as a '訂正有価証券報告書' (Amended Annual Securities Report) for Nippon Crucible Co., Ltd. The header explicitly states '有価証券報告書' (Annual Securities Report), which is the Japanese equivalent of a 10-K filing. It includes detailed financial data, fiscal year information (第185期), and XBRL tags, confirming it is the report itself rather than an announcement. Therefore, it is classified as a 10-K. FY 2025
2025-08-14 Japanese
確認書
Report Publication Announcement Classification · 100% confidence The document is a 'Confirmation Letter' (確認書) filed under the Financial Instruments and Exchange Act, specifically regarding a correction to a Second Quarter Report (訂正第２四半期報告書). Since it is a formal regulatory filing submitted to the Kanto Local Finance Bureau regarding the accuracy of financial reporting, and does not fit into the specific categories of a full report or a simple announcement, it is classified as a Regulatory Filing.
2025-08-14 Japanese

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