Simon Files Lawsuit Against State of Indiana

INDIANAPOLIS, Nov. 3, 2011 /PRNewswire/ — Simon Property Group, Inc.
(NYSE:SPG), the country’s largest owner, developer and manager of high quality
retail real estate, announced today that it has filed a complaint against the
State of Indiana in Marion County Circuit Court.

SPG is not seeking monetary damages. This action is being filed to benefit all
of Indiana’s taxpayers and the state’s bricks-and-mortar retailers, many of
which are SPG’s tenants at its 27 shopping centers in Indiana.

The lawsuit is being filed after SPG requested the State of Indiana begin
collecting sales taxes on sales made by Amazon.com within the State of Indiana
as required by existing Indiana law. Amazon.com is required by Indiana law to
collect and remit sales and use taxes to the state, for sales made over the
Internet, but has consistently refused to do so even though it is required by
current Indiana laws.

As a proud Indiana company which employs thousands of Hoosiers, Simon Property
Group believes we have a responsibility to ensure the laws are equally applied
to everyone. Main Street retailers are being harmed by this unequal playing
field in Indiana and their existence is being jeopardized and threatens the
employment of hundreds of thousands of retail employees in our state.

Simon Property Group

Simon Property Group, Inc. is an S&P 500 company and the largest real estate
company in the U.S. The Company currently owns or has an interest in 391 retail
real estate properties comprising 261 million square feet of gross leasable area
in North America, Europe and Asia. Simon Property Group is headquartered in
Indianapolis, Indiana and employs more than 5,000 people worldwide. The
Company’s common stock is publicly traded on the NYSE under the symbol SPG. For
further information, visit the Simon Property Group website at www.simon.com.

SOURCE Simon Property Group, Inc.