Here's everything you need to know before Wednesday's opening bell:

  1. AT&T (T - Get Report) plans to offer mobile 5G in a dozen cities, including parts of Dallas, Atlanta and Waco, Texas, by the end of 2018.
  2. 3M (MMM - Get Report) agreed to pay Minnesota $850 million to settle a case alleging the company damaged natural resources and contaminated groundwater.
  3. GM (GM - Get Report) proposed investing $2.8 billion into its loss-making South Korean operations over the next 10 years.
  4. The minutes from the Federal Reserve's January 31 meeting will be released at 2 p.m ET.
  5. U.S. stock futures traded lower as investors continued to eye the bond market.

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