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NIHON SEIKO CO.,LTD. — Investor Relations & Filings

Ticker · 5729 ISIN · JP3721000002 T Manufacturing
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Filings indexed 58 across all filing types
Latest filing 2025-11-14 Regulatory Filings
Country JP Japan
Listing T 5729

About NIHON SEIKO CO.,LTD.

https://www.nihonseiko.co.jp/en/

NIHON SEIKO CO.,LTD. is a manufacturer specializing in the production and sale of antimony products and atomized metal powders. The company's operations are organized into two primary segments: Antimony and Atomized Metal Powder. Its core product, antimony trioxide, is widely utilized as a flame retardant in plastics, textiles, and other materials. The company also produces various metal sulfides. The Atomized Metal Powder division manufactures a range of metallic powders for diverse industrial applications. NIHON SEIKO is a leading supplier of antimony-based products.

Recent filings

Filing Released Lang Actions
確認書
Regulatory Filings Classification · 100% confidence The document is a 'Confirmation Letter' (確認書) filed under Article 24-5-2, Paragraph 1 of the Financial Instruments and Exchange Act of Japan. 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 specific report type (in this case, a semi-annual report), should be classified as Regulatory Filings (RNS) rather than the report itself, as they do not contain the actual financial statements. H1 2025
2025-11-14 Japanese
半期報告書－第131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 Nihon Seiko Co., Ltd. under the Financial Instruments and Exchange Act of Japan. It contains comprehensive financial statements, management analysis (MDA), and operational data for the interim period ending September 30, 2025. As it is a formal, comprehensive interim financial report containing actual financial data, it is classified as an Interim/Quarterly Report (IR). H1 2026
2025-11-14 Japanese
内部統制報告書－第130期(2024/04/01－2025/03/31)
Governance Information Classification · 100% confidence The document is explicitly titled "内部統制報告書" (Internal Control Report) in the cover section and throughout the text. It references the legal basis as Article 24-4-4, Paragraph 1 of the Financial Instruments and Exchange Act (金融商品取引法第24条の４の４第１項), which mandates the filing of an Internal Control Report in Japan. The content details the framework, scope, criteria (as of March 31, 2025), and the conclusion that internal controls over financial reporting are effective. This directly corresponds to the requirements for an Internal Control Report, which is a mandatory annual filing in Japan, often filed alongside the 10-K equivalent (which is the Annual Securities Report in Japan, but the specific document type here is the Internal Control Report itself). Given the provided classification options, this document is a specific type of regulatory report focusing on internal controls, which is best categorized as an Audit Report/Information (AR) as it deals with the assurance/evaluation of financial reporting integrity, although it is not a traditional external audit report, it fits better here than other options. However, since the document is a formal, comprehensive report detailing internal control evaluation, and not just an announcement of a report, it is a primary filing. In the context of US filings, this is analogous to the management report on internal controls often included in the 10-K. Since 'AR' is defined as 'Standalone audit reports, applied accounting principles, and results of internal or regulatory stress tests', this evaluation of internal controls fits best under 'AR' among the choices, as it is a formal report on the integrity of financial reporting processes.
2025-06-27 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４の２第１項' (Article 24-4-2, Paragraph 1 of the Financial Instruments and Exchange Act). It serves as an officer certification confirming the accuracy of the company's Annual Securities Report (有価証券報告書). According to the 'CERTIFICATION RULE', documents that are primarily officer certifications or attestations should be classified as Regulatory Filings (RNS), even if they reference a specific report type. FY 2025
2025-06-27 Japanese
臨時報告書
AGM Information Classification · 100% confidence The document is titled "臨時報告書" (Extraordinary Report/Timely Disclosure Report) and explicitly states in Section 1 that it is being filed because resolutions were passed at the Annual General Meeting (AGM) held on June 26, 2025, in accordance with Japanese financial regulations (FIEA Article 24-5, Paragraph 4). Section 2 details the resolutions, which include the approval of dividends (Item 1), amendments to the Articles of Incorporation (Item 2), and the election of Directors and Auditors (Items 3 and 4). The content is a formal report on the results of a shareholder meeting, specifically detailing the voting outcomes for each resolution. This directly corresponds to the definition of 'Declaration of Voting Results & Voting Rights Announcements' (DVA), which covers official results from shareholder votes at any general meeting.
2025-06-27 Japanese
有価証券報告書－第130期(2024/04/01－2025/03/31)
Annual Report Classification · 100% confidence The document is a Japanese 'Yuka Shoken Hokokusho' (Securities Report), which is the Japanese equivalent of a 10-K annual report. It contains a formal cover page identifying the company (Nihon Seiko Co., Ltd.), the fiscal period (130th term, April 1, 2024 to March 31, 2025), and the submission date (June 27, 2025). The document includes XBRL-like metadata tags and structured financial reporting data, confirming it is the full annual financial report rather than an announcement or summary. FY 2025
2025-06-27 Japanese

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