Chugai Mining Co., Ltd.TSE: 1491

Notice of the Establishment of a Subsidiary(156KB)

· Issued by Chugai Mining Co., Ltd.

February 13, 2026

Listed Company Name: Chugai Mining Co., Ltd.

(Stock code no.: 1491, Tokyo Stock Exchange Standard Market) Representative: Takeo NISHIMOTO, CEO and President

For Inquiry: Isao SAKURABA, IR Center (Telephone: 03-3201-1541)

Notice of the Establishment of a Subsidiary

The Company announces the establishment of Chugai Hawaii LLC, which began operations in November 2025. This subsidiary will conduct real estate business in the state of Hawaii, USA. The investment amount exceeds 10% of our capital stock, and this subsidiary will be classified as a specified subsidiary of our company.

Although this announcement comes after the fact, we are notifying you of the subsidiary's establishment and apologize for the delay in disclosure.

  1. Overview of the Established Subsidiary

    1. Company name

    CHUGAI HAWAII LLC

    2. Location

    1441 Kapiolani Boulevard, Suite 910, Honolulu, Hawaii .96814,USA

    3. Representative's name and title

    Tsuyoshi UCHIKURA, Representative Director

    4. Business description

    Real estate business

    5. Capital

    100,000 USD (at establishment)

    2,422,000 USD (after capital increase) *

    6. Date of establishment

    November 5, 2025

    7. Contribution ratio

    100% subsidiary of the Company

    8. The relationship between the listed company and the company in question

    Capital relationship:

    As stated in the investment ratio

    Personnel relationship:

    One of the Company employees serves as a director of the company in question

    Transaction relationship:

    There are no relevant matters

    9. Consolidated operating results and financial position over the past three years

    As it was established on November 5, 2025, there are no items to record.

    10. Board resolution date

    October 31, 2025

    * In December 2025, we increased the capital of CHUGAI HAWAII LLC.

  2. Impact on Performance and Other Matters

This matter will not affect the consolidated financial results for the fiscal year ending in March 2026. Should any new matters requiring disclosure arise in the future, they will be disclosed promptly.

This is an English translation of the Financial Report prepared in Japanese.

In the event of any discrepancy between the Japanese original and the English translation, the Japanese original shall prevail.

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