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West Holdings corporation — Investor Relations & Filings

Ticker · 1407 ISIN · JP3154750008 T Electricity, gas, steam and air conditioning supply
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Filings indexed 70 across all filing types
Latest filing 2026-04-14 Regulatory Filings
Country JP Japan
Listing T 1407

About West Holdings corporation

https://www.west-gr.co.jp/

West Holdings Corporation is a general energy management company specializing in renewable energy. The company's business is structured around three core pillars: renewable energy creation, energy conservation, and green power aggregation. In its primary renewable energy segment, West Holdings provides comprehensive, end-to-end services for solar power generation. These services cover the entire project lifecycle, including planning, design, construction, sales, and ongoing operation and maintenance (O&M), for a wide range of applications from residential to large-scale mega-solar installations. The energy conservation division offers solutions to high-consumption facilities like commercial buildings, factories, and hospitals to reduce costs and CO2 emissions. The green power business focuses on supplying electricity generated from its own and other solar power plants.

Recent filings

Filing Released Lang Actions
確認書
Regulatory Filings Classification · 1% confidence The document is a Japanese statutory confirmation letter (“確認書”) under the Financial Instruments and Exchange Law Article 24-5-2, confirming the accuracy of the company’s semi-annual (half-year) report. It is very short (~683 characters) and contains the CEO/CFO attestation rather than the full financial statements or narrative of an Interim/Quarterly Report. It does not present the financial results themselves nor announce the publication of a report—it is a legal/administrative filing with no clear analogue in the provided categories other than the general fallback “Regulatory Filings.” Therefore, it should be classified as RNS.
2026-04-14 Japanese
半期報告書－第21期(2025/09/01－2026/08/31)
Interim / Quarterly Report Classification · 1% confidence The document is a '半期報告書' (Semi-Annual Report) filed by West Holdings Corporation in Japan. It contains detailed financial statements, management analysis, and audit information for the interim period (2025-09-01 to 2026-02-28). 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 2026
2026-04-14 Japanese
確認書
Audit Report / Information Classification · 1% confidence The document is a 'Confirmation Letter' (Kakunin-sho) filed under Article 24-4-2, Paragraph 1 of the Financial Instruments and Exchange Act of Japan. This is a mandatory document filed alongside an Annual Securities Report (Yukashoken Hokokusho) in Japan, where management confirms the accuracy of the report's contents. Since it is a regulatory filing confirming the accuracy of financial reporting and does not fit into the specific categories of the report itself, it is classified as a Regulatory Filing (RNS). FY 2025
2025-11-25 Japanese
有価証券報告書－第20期(2024/09/01－2025/08/31)
Annual Report Classification · 1% confidence The document is a Japanese '有価証券報告書' (Yuuka Shouken Houkokusho), which is the standard Japanese equivalent of an Annual Report (10-K). It includes a header specifying the fiscal year (第20期, 2024-09-01 to 2025-08-31), the company name (West Holdings Corporation), and the filing date (2025-11-25). The presence of XBRL-like tags and detailed financial reporting structure confirms it is the full annual financial filing rather than an announcement or summary. FY 2025
2025-11-25 Japanese
確認書
Regulatory Filings Classification · 1% confidence The document is a 'Confirmation Letter' (確認書) filed under 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 like an interim/semi-annual report. H1 20
2025-04-14 Japanese
半期報告書－第20期(2024/09/01－2025/08/31)
Interim / Quarterly Report Classification · 1% confidence The document is a '半期報告書' (Semi-Annual Report) for West Holdings Corporation, covering the period from September 1, 2024, to February 28, 2025. It includes detailed financial statements, management analysis, and audit review information, which aligns with the definition of an Interim/Quarterly Report (IR). H1 2025
2025-04-14 Japanese

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