For Immediate Release Citigroup Inc. (NYSE symbol: C) (12 November 2006)

Citigroup Mobilizes 30,000–plus Volunteers Across 100 Countries for Inaugural “Global Community Day” November 18, 2006

Citigroup Hong Kong Volunteers Support “The Community Chest Flag Day” and “WWF-Workout for Nature”

Citigroup employees volunteer year-round in the communities in which they live and work. “Global Community Day” is a new initiative to have Citigroup’s employees, along with their families and friends, come together as a global team on a single day each year. On this day, Citigroup colleagues in 100 countries around the world will join forces to demonstrate their commitment to their local communities. Volunteer teams will be working on hundreds of local projects addressing specific community needs, including literacy, housing, environmental protection, nutrition, health care and disaster relief. Citigroup expects more than 30,000 volunteers to participate in more than 800 projects in 400 cities.

The themes for Hong Kong are People & Environment: reaching out to a large number of people and engaging in environmental protection. The two activities are: The Community Chest Flag Day and WWF-Workout for Nature. Citigroup Hong Kong senior managers and employees, along with family and friends will be joining these activities.

Over 1,000 volunteers in Hong Kong will participate in a street flag sale across the territory to raise money for the Community Chest’s social welfare agencies. Volunteers will be spread across 16 full-service Citibank branches. Another 200-plus volunteers will help to cut exotic weeds at freshwater ponds at Mai Po Nature Reserve, located in Tam Kon Chau, Yuen Long. Friends and family can also sponsor volunteers according to the weight of weeds they remove from the ponds.

“Citigroup is committed to mobilizing the enthusiasm and talents of our employees for community service,” said Charles Prince, Chairman and Chief Executive Officer of Citigroup. “Citigroup’s Global Community Day is a company-wide effort, with tens of thousands of volunteers working in Asia Pacific, Latin America, Europe, the Middle East, Africa, and North America. This initiative certainly highlights the power

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and diversity of Citigroup’s employees and our unwavering commitment to making communities better where we live and work,” said Prince.

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Citigroup, the leading global financial services company, has some 200 million customer accounts and does business in more than 100 countries, providing consumers, corporations, governments and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, and wealth management. Major brand names under Citigroup's trademark red umbrella include Citibank, CitiFinancial, Primerica, Smith Barney and Banamex. Additional information may be found at www.citigroup.com

Certain statements in this document are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act. These statements are based on management's current expectations and are subject to uncertainty and changes in circumstances. Actual results may differ materially from those included in these statements due to a variety of factors. More information about these factors is contained in Citigroup's filings with the Securities and Exchange Commission.

Media Contact(s): Kathy Cheung 2962 8570 [email protected] Diane Lam 2868 8989 [email protected]

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