NX · Quanex Building Products CORP

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 56.513 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 10.201 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 29.372 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 94.476 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 96.992 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 28.246 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 5.963 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 86.722 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 106.499 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 74.529 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

This reported price is a weighted average price. These shares were bought in multiple transactions within the range of $15.65 and $16.43 The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

The securities reported herein are held by Teleios Global Opportunities Master Fund, Ltd., a Cayman Islands exempted company (the "Master Fund"). The reported securities may be deemed beneficially owned by Teleios Capital Partners GmbH, the investment manager of the Master Fund, and Teleios Capital Partners GmbH's managing member and controlling shareholder: Igor Kuzniar. Each of Mr. Kuzniar, the Master Fund, and Teleios Capital Partners GmbH, a Reporting Person. Teleios Capital Partners GmbH and Igor Kuzniar each disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that each Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

This reported price is a weighted average price. These shares were bought in multiple transactions within the range of $16.49 and $16.52. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

The securities reported herein are held by Teleios Global Opportunities Master Fund, Ltd., a Cayman Islands exempted company (the "Master Fund"). The reported securities may be deemed beneficially owned by Teleios Capital Partners GmbH, the investment manager of the Master Fund, and Teleios Capital Partners GmbH's managing member and controlling shareholder: Igor Kuzniar. Each of Mr. Kuzniar, the Master Fund, and Teleios Capital Partners GmbH, a Reporting Person. Teleios Capital Partners GmbH and Igor Kuzniar each disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that each Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Shares were sold to cover taxes due in connection with the grant of common stock relating to the vesting of Performance Shares originally granted on December 7, 2022.

Shares were sold to cover taxes due in connection with the grant of common stock relating to the vesting of Performance Shares originally granted to the reporting person on December 7, 2022.

Shares were sold to cover taxes due in connection with the lapse of forfeiture restrictions on restricted stock originally granted to the reporting person on December 7, 2022.

Shares were sold to cover taxes due in connection with the lapse of forfeiture restrictions on restricted stock originally granted to the reporting person on December 7, 2022.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 69.407 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 0.7364 shares credited to the reporter's account as the result of dividend reinvestments under the Company's Employee Stock Purchase Plan.

Includes 54.2476 shares credited to the reporter's account as the result of dividend reinvestments under the Company's Employee Stock Purchase Plan.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 20.6530 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Includes 74.1871 shares credited to the reporting person's account as the result of prior dividend reinvestments under the Company's Employee Stock Purchase Plan.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 104.816 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Includes 83.545 shares credited to the reporter's account as the result of dividend reinvestments under the Company's Employee Stock Purchase Plan.

Each restricted stock unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock.

The restricted stock units vest immediately. The restricted stock units will become payable upon the grantee's death, disability, cessation of service as a director, or change in control of the Company.

Each Restricted Stock Unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock.

The restricted stock units vest immediately and will pay out upon the death, disability, cessation of the Director's service as a director, or change in control of the Company.

Each Restricted Stock Unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock.

The restricted stock units vest immediately and will pay out upon the death, disability, cessation of the Director's service as a director, or change in control of the Company.

Each Restricted Stock Unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock.

The Restricted Stock Units vest immediately, and will pay out on the earlier of the third anniversary of the date of grant or the reporting person's death, disability, cessation of service as a director, or change in control of the Company.

Each Restricted Stock Unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock.

The restricted stock units vest immediately. The restricted stock units will become payable upon the grantee's death, disability, cessation of service as a director, or change in control of the Company.

Each restricted stock unit represents a contingent right to receive cash in an amount equivalent to the value of one share of NX common stock.

The restricted stock unit will vest immediately. The restricted stock units will become payable upon the first anniversary of the date of grant or the reporting person's death, disability or cessation of service on the board or change of control of the Company.

Each Restricted Stock Unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock.

The Restricted Stock Units vest immediately and will pay out upon the death, disability, Director's cessation of service as a director, or change of control of the Company.

Each Restricted Stock Unit represents a contingent right to receive cash in an amount equivalent to the value of one share of Quanex common stock.

The Restricted Stock Units vest immediately and will pay out on the death, disability, cessation of service as a director, or change in control of the Company.

Each restricted stock unit represents a contingent right to receive cash in an amount equivalent to the value of one share of NX common stock.

The restricted stock units vested immediately and were settled in cash on the first anniversary of their grant date, pursuant to the payment election made by the reporting person.

Represents the total number of restricted stock units that were settled in cash pursuant to their terms.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 57.908 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 10.789 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 46.823 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 73.845 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 4.935 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 40.794 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.

Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director.

Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation.

Includes 68.767 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment.