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March 24, 2014

MGM Resorts Will Join World Observance Of EARTH HOUR 2014
Exterior Lighting at Las Vegas and Biloxi Resorts will be dimmed Saturday, March 29, 2014 8:30-9:30pm PDST.

LAS VEGAS and BILOXI, Miss., March 24, 2014 /PRNewswire/ -- MGM Resorts International (NYSE: MGM) will once again this year dim lights at its resorts to join millions around the world in celebrating EARTH HOUR on Saturday, March 29, 8:30 p.m. - 9:30 p.m. PDST.

Exterior lighting, rooftop signage, marquees and front features at the Company's major Strip resorts and Beau Rivage Resort and Casino in Biloxi, Miss. will be turned off during the celebration. Las Vegas's most iconic resorts will unite with some of the world's other famous worldwide landmarks - such as the Eiffel Tower, Burj Khalifa and the Empire State Building - in dimming their lights to promote energy conservation.

"This event is an opportunity for us to join with others all over the world, to unite in a common mission and illustrate our commitment to the planet," said Cindy Ortega, MGM Resorts Senior Vice President and Chief Sustainability Officer. "Yet environmental responsibility is not just a one-hour observance. It is a year-round priority for MGM Resorts that reaches into every aspect of our business."

EARTH HOUR begins in New Zealand and progresses around the world, culminating in the Pacific Time Zone of the United States.

The company has saved 420 million kilowatt hours of energy in the past five years at its resorts -- equivalent to 37,000 homes annually or 228,000 metrics tons of CO2E.

In 2009, CityCenter - which includes ARIA, Vdara and The Shops at Crystals -- was awarded six LEED Gold certifications for sustainable design and construction from the U.S. Green Building Council. In 2012, MGM Resorts was awarded 15 Green Key Hotel rankings for designation of green business operations. Also, in 2012, Green Key Global's Meetings Program awarded the "5 Green Keys" rating to the meetings and convention spaces within Bellagio, ARIA, Mandalay Bay and MGM Grand Las Vegas. For three consecutive years, MGM Resorts has been listed as the highest ranking company in the casino-resort industry among Newsweek Magazine's 500 most environmentally responsible companies.

Additionally, MGM Resorts recently announced the planned installation of one of the largest rooftop solar photovoltaic arrays in the world at the Mandalay Bay Resort Convention Center. The 6.2-megawatt installation will be MGM Resorts' first commercial solar project in the United States and will generate enough electricity to power the equivalent of 1,000 homes.

For more information about MGM Resorts International's commitment to social responsibility, please visit: http://mgmresorts.com/csr/.

About MGM Resorts International (NYSE:MGM)
MGM Resorts International (NYSE: MGM) is one of the world's leading global hospitality companies, operating a peerless portfolio of destination resort brands, including Bellagio, MGM Grand, Mandalay Bay and The Mirage. In addition to its 51% interest in MGM China Holdings Limited, which owns the MGM Macau resort and casino, the Company has significant holdings in gaming, hospitality and entertainment, owns and operates 15 properties located in Nevada, Mississippi and Michigan, and has 50% investments in three other properties in Nevada and Illinois. One of those investments is CityCenter, an unprecedented urban resort destination on the Las Vegas Strip featuring its centerpiece ARIA Resort & Casino. Leveraging MGM Resorts' unmatched amenities, the M life loyalty program delivers one-of-a-kind experiences, insider privileges and personalized rewards for guests at the Company's renowned properties nationwide. Through its hospitality management subsidiary, the Company holds a growing number of development and management agreements for casino and non-casino resort projects around the world. MGM Resorts International supports responsible gaming and has implemented the American Gaming Association's Code of Conduct for Responsible Gaming at its gaming properties. The Company has been honored with numerous awards and recognitions for its industry-leading Diversity Initiative, its community philanthropy programs and the Company's commitment to sustainable development and operations.

For more information about the company please visit www.mgmresorts.com