Notice Regarding Dividends of Surplus

May 12, 2026

Press Release

Company name: Nittobo (registered as Nitto Boseki Co., Ltd.)

Representative: Hisanobu Hayashi, Representative and Chief Executive Officer (Securities Code: 3110, TSE Prime Market)

Contact: Hiroki Kajikawa, Senior Executive Officer

(Tel: +81-3-4582-5040)

Nittobo (the "Company") announces a resolution of the Board of Directors meeting regarding the dividends of surplus with a record date of March 31, 2026.

Note that this dividend of surplus will be submitted for approval to the ordinary general meeting of shareholders to be held on June 19, 2026.

1. Description of dividends

   	Determined amount	Recent dividend forecast (as of February 5, 2026)	Dividend for the previous fiscal year-end (March 31, 2025)
   Record date	March 31, 2026	March 31, 2026	March 31, 2025
   Dividend per share	99.50 yen	86.50 yen	78.50 yen
   Total amount of dividends	3,639 million yen	-	2,871 million yen
   Effective date	June 22, 2026	-	June 20, 2025
   Source of dividends	Retained earnings	-	Retained earnings

2. Reason

The Company maintains a sound financial structure while making investments for sustainable business growth. At the same time, the dividend policy for shareholders has been designated one of the most important issues for management. In the Medium-Term Management Plan (FY2024-2027), the

Company's basic policy is to pay a dividend with a minimum of 55 yen per share and a consolidated dividend payout ratio of 30% of steady earnings.

Based on this policy, the Company plans to pay 99.50 yen per common share for the year-end dividend of the current fiscal year.

(Reference) Breakdown of annual dividend