Nabtesco : Notice Concerning Additional Contribution to the Board Benefit Trust for Directors and Executive Officers

To whom it may concern:

(Translated) April 30, 2021

Company name: Nabtesco Corporation

Representative: Katsuhiro Teramoto Representative Director, President & CEO

(Securities Code: 6268; 1st Section, Tokyo Stock Exchange)

Contact: Yasushi Minegishi, General Manager, Corporate Communication Department.

(Tel. [phone])

Notice Concerning Additional Contribution to the Board Benefit Trust

for Directors and Executive Officers

Nabtesco Corporation (the "Company") hereby announces that the Board of Directors has resolved, at the meeting held today, with respect to the stock compensation program for Directors and Executive Officers (the "Program," and the trust established based on a trust agreement executed with Mizuho Trust & Banking Co., Ltd., the "Trust") that the Company will make an additional cash contribution to the Trust in order for the trustee to acquire shares of the Company.

For summary of the Program, please refer to "NOTICE OF CONVOCATION OF THE 14TH ANNUAL GENERAL MEETING OF SHAREHOLDERS" dated March 6, 2017.

1. Reason for the Additional Contribution

The company has continued the Program and has decided to make an additional cash contribution to the Trust to provide funds (the "Additional Trust") to acquire necessary shares in the future.

2. Summary of the Additional Trust

1. Date of Additional Trust: May 14, 2021 (planned)
2. Amount of the Additional Trust to acquire the shares: JPY 969,893,028*
3. Type of shares to be acquired: Common stock of the Company
4. Maximum number of shares to be acquired: 188,400 shares
5. Period of acquiring shares: From May 14, 2021 (planned) to May 28, 2021 (planned)
6. Method of acquiring shares: From the stock market

*The Company acquires additional shares using Additional Trust (JPY 969,893,028) and Trust Property (JPY 66,306,972)