This handbook describes the Plan as in effect January 1, 2024, and serves as the SPD, for employees of the Company and its participating subsidiaries and affiliates (each, an "Employer", and collectively, the "Employer"). Participating subsidiaries and affiliates include any U.S. entity in which the Company owns at least an 80% interest. For a complete list of all the Employers that participate in the Plan, please contact the Citi Benefits Center.

This SPD has been written, to the extent possible, in non-technical language to help you understand the basic terms and conditions of the Plan as they are in effect from time to time. This description is intended to be only a summary of the major highlights of the Plan. In addition, this SPD has been incorporated into a prospectus covering securities that have been registered under the Securities Act of 1933 solely for the purpose of furnishing information describing the Plan and its operations. For more information about the prospectus and the materials incorporated into the prospectus, please see the prospectus. To review the prospectus, please contact the Plan (see "How to Contact the Plan"). This SPD does not incorporate by reference or otherwise any documents that have been filed with the U.S. Securities Exchange Commission by the Company.

No general explanation can adequately give you all the details of the Plan. This general explanation does not change, expand or otherwise interpret the terms of the Plan. If there is any conflict between the Plan document and this SPD, or any written or oral communication by an individual representing the Plan, the terms of the Plan document (as interpreted by the Plan Administrator in its sole discretion) will be followed in determining your rights and benefits under the Plan. If you want a paper copy of the Plan document, please contact the Plan (see "How to Contact the Plan").

The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"), and the Internal Revenue Code of 1986, as amended (the "Code").

The Company reserves the right to amend, modify, suspend or terminate the Plan, in whole or in part, at any time without prior notice, to the extent allowed by law. This means that the Company has the right to change Plan terms (including eligibility for benefits) or to discontinue any part or all of the benefits described herein at any time. Investment options under the Plan also are subject to change at any time without prior notice.

Nothing contained in the Plan or this SPD is to be construed as an express or implied contract of employment for any definite or continuing period of time or for any benefits associated with employment. Likewise, participation in the Plan does not limit your Employer's right to terminate your employment regardless of your Plan participation. Your employment is on an at-will basis.