IFRS 2011 HISTORICAL PRO-FORMA INFORMATION FOR 2013 (UPDATE TO INCLUDE THE INFORMATION FOR THE 4TH QUARTER AND THE FULL YEAR 2013)

The presentation of the pro-forma 2013 historical information reviewed in accordance with the new accounting standard on joint arrangements (IFRS 11) is now available on our website at www.lafarge.com, under the section "Regulated Information". This new standard is applicable as of January 1, 2014, and the pro-forma 2013 historical information will be used as a comparison basis for 2014 quarterly and annual earnings.

NOTES TO EDITORS

A world leader in building materials, Lafarge employs 64,000 people in 62 countries, and posted sales of €15.2 billion in 2013. As a top-ranking player in its Cement, Aggregates and Concrete businesses, it contributes to the construction of cities around the world, through its innovative solutions providing them with more housing and making them more compact, more durable,more beautiful, and better connected. With the world's leading building materials research facility, Lafarge places innovation at the heart of its priorities in order to contribute to more sustainable construction and to better serve architectural creativity.

Disclaimer:

This document does not constitute an offer to sell, or a solicitation of an offer to buy Lafarge shares.

The pro-forma historical information on the impacts of the first application of IFRS 11 presented in the slides mentioned above is to be read as a complement to the elements disclosed in the note 2.27 to the consolidated financial statements as of December 31, 2013. These financial statements are available in the company's Registration document for the fiscal year 2013 filed with the Autorité des Marchés Financiers on April 2, 2014 under the number D.14-0275.