PRESS RELEASE

Empresas Banmédica, UnitedHealth Group Complete Combination

January 31, 2018

Empresas Banmédica, a leading health care provider and insurer serving Chile, Colombia and Peru, and UnitedHealth Group (NYSE:UNH) successfully completed the combination of the two companies. With the closing of the transaction, UnitedHealth Group now owns 96.8% of Empresas Banmédica.

UnitedHealth Group and Empresas Banmédica share a strong commitment to increasing access to better care and improving the health and wellness of the people they serve and the communities where they live and work. Additional details on Empresas Banmédica can be found in an informational package on the Investor Information page of the UnitedHealth Group website, http://www.unitedhealthgroup.com/Investors.aspx.

About Empresas Banmédica

Empresas Banmédica is a Chilean-based company focused on health care insurance and clinical services, with presence in Chile, Colombia and Peru. It is a leading private health care company across the markets in which it operates, serving more than 2.1 million consumers through health benefits and nearly 4 million patients through the delivery of health care across 13 hospitals and 143 medical centers. The company has had strong service and financial performance due to focusing on patient and member experience, business and process performance, and innovation. For more information, visit Empresas Banmédica at www.empresasbanmedica.cl.

About UnitedHealth Group

UnitedHealth Group (NYSE: UNH) is a diversified health and well-being company dedicated to helping people live healthier lives and helping make the health system work better for everyone. UnitedHealth Group offers a broad spectrum of products and services through two distinct platforms: UnitedHealthcare, which provides health care coverage and benefits services; and Optum, which provides information and technology-enabled health services. For more information, visit UnitedHealth Group at www.unitedhealthgroup.com or follow @UnitedHealthGrp on Twitter.