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Nihon Suido Consultants Co., Ltd. — Investor Relations & Filings

Ticker · 261A ISIN · JP3678050000 T Professional, scientific and technical activities
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Filings indexed 13 across all filing types
Latest filing 2026-03-25 Regulatory Filings
Country JP Japan
Listing T 261A

About Nihon Suido Consultants Co., Ltd.

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

Nihon Suido Consultants Co., Ltd. (NSC) is a specialized engineering consulting firm focused on water and environmental infrastructure. As a pioneer in water consulting, the company provides comprehensive technical services across the entire water cycle. Core activities include planning, surveying, design, and project supervision for a wide range of projects, encompassing water supply systems, sewerage and wastewater treatment facilities, drainage, sanitation, and river engineering. Operating under the concept of a 'Water Architect,' NSC delivers integrated solutions for the sustainable development and management of water resources for both public and private sector clients.

Recent filings

Filing Released Lang Actions
確認書
Regulatory Filings Classification · 100% confidence The document is titled '確認書' (Confirmation Letter) and explicitly states it is submitted under Article 24-4-2 of the Financial Instruments and Exchange Act. It serves as an officer certification regarding 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 68
2026-03-25 Japanese
有価証券報告書－第68期(2025/01/01－2025/12/31)
Annual Report Classification · 100% confidence The document is a 'Yuka Shoken Hokokusho' (Securities Report), which is the Japanese equivalent of a 10-K. It contains comprehensive financial statements, management discussion, and audit information for the fiscal year ending December 31, 2025. It is a formal regulatory filing submitted to the Kanto Local Finance Bureau under the Financial Instruments and Exchange Act. FY 2025
2026-03-25 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 accompanying a semi-annual report (第２四半期報告書). It confirms the accuracy of the financial reporting for the period ending June 30, 2025. Since this is a regulatory filing required to accompany financial reports in Japan and does not constitute the financial report itself, it falls under the general regulatory filing category.
2025-08-14 Japanese
半期報告書－第68期(2025/01/01－2025/12/31)
Interim / Quarterly Report Classification · 100% confidence The document is a 'Semi-Annual Report' (半期報告書) for the company 'Nihon Suido Consultants Co., Ltd.' covering the period from January 1, 2025, to June 30, 2025. It contains detailed financial statements, including the balance sheet, income statement, and cash flow analysis, as required by the Financial Instruments and Exchange Act of Japan. This fits the definition of an Interim/Quarterly Report (IR) as it provides comprehensive financial data for a period shorter than a full fiscal year. H1 2025
2025-08-14 Japanese
確認書
Audit Report / Information Classification · 95% confidence The document text contains Japanese regulatory headers and content related to the '有価証券報告書' (Annual Securities Report). Key phrases include '【提出書類】 確認書' (Filing Document: Confirmation document), '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), and confirmation by the CEO regarding the appropriateness of the '有価証券報告書' (Securities Report) for the fiscal year ending December 31, 2024. In the US context, a comprehensive annual securities report filed under the Financial Instruments and Exchange Act is analogous to the US SEC's Form 10-K. Since the provided definitions do not have a specific code for a Japanese 'Yuka Shoken Hokokusho' confirmation, and given that the content directly relates to the annual reporting cycle and confirmation of the annual report's accuracy, the closest equivalent among the provided codes is '10-K' (Annual Report). The document itself is a confirmation statement accompanying the annual report, but its subject matter is definitively the annual report. FY 2024
2025-03-27 Japanese
内部統制報告書－第67期(2024/01/01－2024/12/31)
Governance Information Classification · 100% confidence The document explicitly states in the cover page ("【提出書類】") that it is an "内部統制報告書" (Internal Control Report). It cites 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"). The content discusses the framework, scope, criteria date (2024年12月31日), and the conclusion regarding the effectiveness of internal controls over financial reporting for the consolidated fiscal year. This type of report, focusing on internal controls over financial reporting, is a specific regulatory filing in Japan. While there isn't a direct one-to-one mapping for the Japanese 'Internal Control Report' in the provided English definitions, it is a comprehensive, formal report detailing internal governance and control structures related to financial reporting, which aligns most closely with the scope of Governance Information (CGR) or potentially an Audit Report (AR) if it were an external auditor's opinion, but since it is the management's report on internal controls, CGR is the closest fit among the governance/control-related categories, or it could be considered a specialized regulatory filing (RNS). Given the detailed nature and specific focus on internal control standards, it is a formal governance document. However, looking at the provided codes, 'AR' (Audit Report / Information) covers 'applied accounting principles' and 'internal or regulatory stress tests'. 'CGR' (Governance Information) covers 'internal rules, board structure, and governance practices'. Since this is the management's formal assessment of internal controls over financial reporting, it is a core governance document. In the context of US filings, this is often part of the 10-K, but as a standalone document focusing purely on internal controls, CGR is the most appropriate classification for governance structure documentation.
2025-03-27 Japanese

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