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Niterra Co., Ltd. — Investor Relations & Filings

Ticker · 5334 ISIN · JP3738600000 LEI · 549300RG3XQGTFM4HH31 T Manufacturing
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Filings indexed 74 across all filing types
Latest filing 2025-06-24 Annual Report
Country JP Japan
Listing T 5334

About Niterra Co., Ltd.

https://www.niterragroup.com/english/

Niterra Co., Ltd., formerly NGK Spark Plug Co., Ltd., is a global manufacturer specializing in technical ceramics. The company's core business is in the automotive sector, where it is renowned for its NGK brand of ignition parts, including spark plugs, and its NTK brand of vehicle electronics and sensors, serving both original equipment and aftermarket customers. Leveraging its ceramics expertise, Niterra has diversified its portfolio to include semiconductor-related parts such as packages and manufacturing equipment components, medical equipment like oxygen concentrators, and industrial ceramic parts, including piezoelectric ceramics and bearing balls.

Recent filings

Filing Released Lang Actions
有価証券報告書－第125期(2024/04/01－2025/03/31)
Annual Report Classification · 100% confidence The document is a Japanese 'Yuuka Shouken Houkokusho' (Securities Report), which is the Japanese equivalent of a 10-K annual report. It explicitly states the fiscal year (2024-04-01 to 2025-03-31) and is filed under the Financial Instruments and Exchange Act. The content includes extensive XBRL tagging for financial statements, segment reporting, and director information, confirming it is the full annual report rather than an announcement. FY 2025
2025-06-24 Japanese
臨時報告書
Board/Management Information Classification · 100% confidence The document is titled "臨時報告書" (Extraordinary Report) and is submitted to the Kanto Local Finance Bureau Director on April 30, 2025. Section 1 explicitly states the reason for filing: the resolution made by the Board of Directors on April 30, 2025, regarding a change in the Representative Director, pursuant to Article 24-5, Paragraph 4 of the Financial Instruments and Exchange Act. Section 2 details the specific change: Mr. Toru Matsui stepping down from the position of Representative Director and Director Vice President. This content directly relates to changes in senior management/board members. This aligns perfectly with the definition for Board/Management Information (MANG).
2025-04-30 Japanese
臨時報告書
M&A Activity Classification · 100% confidence The document is titled with Japanese headers indicating it is a '臨時報告書' (Extraordinary Report or Timely Disclosure Report) submitted to the '関東財務局長' (Kanto Local Finance Bureau Director) on November 25, 2024. The content explicitly states in Section 1 that it is being filed based on Article 24-5, Paragraph 4 of the Financial Instruments and Exchange Act and related Cabinet Office Ordinance, due to the resolution by the Board of Directors to execute a Stock Transfer Agreement for the acquisition of all shares of Toshiba Materials Co., Ltd. This structure and legal basis strongly indicate a mandatory disclosure related to a significant corporate action, specifically an acquisition. In the context of Japanese regulatory filings, a report filed under these provisions for a major event like an acquisition is typically classified as a Timely Disclosure Report or Extraordinary Report. Among the provided codes, 'RNS' (Regulatory Filings) is the most appropriate general category for mandatory, non-periodic regulatory disclosures that don't fit the specific financial report types (like 10-K, IR, ER). While it details an M&A event (TAR), the document itself is the formal regulatory filing announcing the transaction, which aligns best with the broad 'RNS' category for mandatory disclosures, or potentially 'TAR' if the focus is purely on the M&A nature. Given the explicit reference to the Financial Instruments and Exchange Act filing requirements ('臨時報告書' - Extraordinary Report), RNS serves as the best fit for a general regulatory disclosure filing that isn't a standard financial report or a specific proxy/insider trade report. However, since the core subject is a takeover/acquisition, 'TAR' (M&A Activity) is also highly relevant. Since this is a formal filing announcing the acquisition details, and 'TAR' is defined as 'Announcements and documents related to merger proposals or takeover bids,' I will prioritize 'TAR' as it is more specific than the general 'RNS' fallback, even though it is presented in the format of a mandatory regulatory filing.
2024-11-25 Japanese
半期報告書－第125期(2024/04/01－2025/03/31)
Interim / Quarterly Report Classification · 100% confidence The document is a 'Hanki Hokokusho' (Semi-Annual Report) filed with the Kanto Local Finance Bureau by Niterra Co., Ltd. It covers the interim accounting period from April 1, 2024, to September 30, 2024. It contains detailed financial statements, management analysis (MDA), and corporate information, which aligns with the definition of an Interim/Quarterly Report (IR). H1 2025
2024-11-08 Japanese
確認書
Regulatory Filings Classification · 100% confidence The document is a 'Confirmation Letter' (確認書) filed under 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 should be classified as Regulatory Filings (RNS), even if they reference a specific report type like an interim/semi-annual report. H1 125
2024-11-08 Japanese
自己株券買付状況報告書（法２４条の６第１項に基づくもの）
Transaction in Own Shares Classification · 100% confidence The document is titled "自己株券買付状況報告書" (Report on the Status of Treasury Stock Acquisition) and explicitly states its basis as Article 24-6, Paragraph 1 of the Financial Instruments and Exchange Act (金融商品取引法第24条の６第１項). It details the acquisition of treasury stock (own shares) during a specific reporting period (July 1 to July 31, 2024). This directly corresponds to the definition of a report detailing the company buying back or selling its own shares, which is classified as 'Transaction in Own Shares' (POS). The document is a detailed report, not an announcement of a report, so RPA/RNS is not appropriate.
2024-08-05 Japanese

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