Exhibit 10.02

[CITIGROUP LETTERHEAD]

May 1, 2006

Mr. Roberto Hernández Ramirez
Chairman of the Board
Banco Nacional de Mexico
Actuario Roberto Medellin No. 800 - 5th Floor
Col. Santa Fe, 01210
Mexico City, Mexico

Re:Stock Ownership Commitment

Dear Roberto,

The purpose of this letter is to confirm that the Board of Directors ("Board")
of Citigroup Inc. ("Citigroup"), at the recommendation of the Board's Nomination
and Governance Committee, has adopted a resolution granting you a waiver from
Citigroup's Stock Ownership Commitment ("SOC"), which is contained in
Citigroup's Corporate Governance Guidelines, and set your minimum ownership of
Citigroup's common stock pursuant to the SOC at one million shares for so long
as you remain a member of the Board.

Very truly yours,

/s/ Alain J.P. Belda

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Alain J.P. Belda
Lead Director and Chairman of the
Nomination and Governance Committee
Citigroup Inc.

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