Skip to main content
WAKACHIKU CONSTRUCTION CO.,LTD. logo

WAKACHIKU CONSTRUCTION CO.,LTD. — Investor Relations & Filings

Ticker · 1888 ISIN · JP3990800009 T Construction
Open in API
Filings indexed 59 across all filing types
Latest filing 2026-03-23 Major Shareholding Noti…
Country JP Japan
Listing T 1888

About WAKACHIKU CONSTRUCTION CO.,LTD.

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

Wakachiku Construction Co., Ltd. is a construction company specializing in marine and offshore civil engineering. Established in 1890, the company is a pioneer in waterfront projects, including dredging, reclamation, and the construction of man-made islands. Its business portfolio also encompasses land-based civil engineering, general building construction, and real estate. Furthermore, the company engages in projects related to regional and urban development, as well as environmental improvement and conservation. Wakachiku Construction operates on both domestic and international projects, leveraging its extensive experience in complex engineering works.

Recent filings

Filing Released Lang Actions
変更報告書
Major Shareholding Notification Classification · 1% confidence The document is the official Japanese large shareholding report (大量保有報告書) filed under the Cabinet Office Order, detailing significant share ownership levels, a change report (変更報告書 No.3) with percent held and threshold crossings. This matches the Major Shareholding Notification category (MRQ).
2026-03-23 Japanese
確認書
Regulatory Filings Classification · 1% 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 confirming the accuracy of a semi-annual report. 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. H1 210
2025-11-11 Japanese
半期報告書－第210期(2025/04/01－2026/03/31)
Interim / Quarterly Report Classification · 1% confidence The document is a '半期報告書' (Semi-Annual Report) filed by Wakachiku Construction Co., Ltd. in accordance with Article 24-5, Paragraph 1 of 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 is classified as an Interim/Quarterly Report. H1 2026
2025-11-11 Japanese
臨時報告書
AGM Information Classification · 1% 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 submitted based on regulations following the resolution of matters at the Annual General Meeting (AGM) held on June 27, 2025. Section 2 details the resolutions passed, specifically the election of 9 Directors and 1 Auditor, along with the voting results (votes for, against, abstentions). This content perfectly matches the definition of reporting the results of a shareholder vote, which corresponds to the Declaration of Voting Results & Voting Rights Announcements (DVA). Although it relates to the AGM, the core content is the voting outcome report, not the AGM presentation materials (AGM-R).
2025-06-30 Japanese
確認書
Regulatory Filings Classification · 1% confidence The document is titled '確認書' (Confirmation Letter) and cites '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 is an officer certification confirming the accuracy of the contents of the 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
2025-06-26 Japanese
内部統制報告書－第209期(2024/04/01－2025/03/31)
Governance Information Classification · 1% confidence The document is titled "内部統制報告書" (Internal Control Report) and explicitly states its 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). It details the scope, criteria (based on the Corporate Accounting Council's standards), and the conclusion of the internal control assessment as of the fiscal year-end (March 31, 2025). This structure and content are characteristic of a formal internal control report filed under Japanese regulations, which is analogous to the Sarbanes-Oxley Section 404 report in the US context. While there isn't a direct mapping to the provided US-centric codes (like 10-K), the closest functional equivalent for a comprehensive annual internal control assessment report, especially when considering the context of comprehensive annual filings, is often grouped with major annual reports or specific regulatory disclosures. Given the options, this document is a specific, mandatory regulatory report focusing on internal controls over financial reporting. Since there is no specific code for a Japanese 'Internal Control Report,' and it is a comprehensive annual assessment, it is most closely related to the Annual Report (10-K) in function, but since it is a distinct, standalone report type, and the document is clearly a full report rather than an announcement (Rule 2), it should be classified based on its content. In the absence of a specific 'Internal Control Report' code, and recognizing it as a mandatory, comprehensive annual regulatory filing, it is best categorized as a specific regulatory disclosure. However, looking at the definitions, 'AR' (Audit Report / Information) is defined as 'Standalone audit reports, applied accounting principles, and results of internal or regulatory stress tests (excluding full Annual Reports).' This report is about internal controls, which is closely related to the audit process and financial integrity. Given the highly specific nature of the document (Internal Control Report), and the lack of a perfect match, I will evaluate the closest fit. Since it is a formal, comprehensive report required annually, it shares characteristics with the 10-K, but it is specifically the internal control component. If we must choose from the list, and recognizing that this is a formal regulatory filing that is not an earnings release (ER) or a quarterly report (IR), and it is not a proxy statement (DEF 14A) or an AGM material (AGM-R), the most appropriate category for a comprehensive, mandatory, non-financial statement report focusing on controls and compliance, which is often filed alongside the 10-K equivalent, is difficult. Given the options, and treating it as a core regulatory disclosure that is not a general earnings release or a short announcement, I will default to the most comprehensive annual filing type if it were part of the 10-K structure, or the closest regulatory report. Since it is a full report and not an announcement, I will lean towards the category that covers comprehensive reports not explicitly listed. If forced to choose the best fit among the provided, 'AR' (Audit Report / Information) is the closest thematic fit as internal control reports are intrinsically linked to the audit process, even if this is management's assertion, not the auditor's opinion. However, the document is explicitly the *management's* report on internal controls, not the auditor's report. Since it is a mandatory, comprehensive regulatory filing, and not an announcement, I will classify it as a specific regulatory filing that is not an earnings release or quarterly report. Given the strict definitions, and the document being a full, formal report, I will select 'AR' as the closest thematic fit related to financial assurance/controls, acknowledging the imperfect mapping.
2025-06-26 Japanese

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.