UNS Energy Corp. (NYSE: UNS) plans to release its financial results for 2012 on Tuesday, February 26, 2013, before the market opens. The release will be followed by a conference call on Tuesday, February 26 at 11 a.m. ET. The earnings release and supplemental information will be available online at uns.com. To participate in the call, please dial in five to 10 minutes prior to the start. A reference code is not necessary to access the live call. Dial-in number: (800) 695-9940 The conference call also can be heard live online at uns.com. A telephone replay will be available for seven days. Replay number: (800) 633-8284 Reference code: 21649272 UNS Energy is a Tucson, Arizona-based company with consolidated assets of approximately $4 billion. UNS Energy's primary subsidiaries include Tucson Electric Power, which serves more than 406,000 customers in southern Arizona; and UniSource Energy Services, provider of natural gas and electric service for about 240,000 customers in northern and southern Arizona. For more information about UNS Energy and its subsidiaries, visit uns.com.