Compagnie de Saint-Gobain

Share Issue/Capital Change • Jun 25, 2019

Compagnie de Saint-Gobain – a French Société anonyme With a share capital of euros 2,186,340,004 « Les Miroirs » – 18, avenue d'Alsace – 92400 Courbevoie, France

On June 25 th, 2019

Update of the Liquidity Agreement

On June 20, 2019, Compagnie de Saint-Gobain entered into a new liquidity agreement with Exane BNP Paribas, acting as liquidity provider, following changes to the regulation applicable to liquidity agreements, and in particular, the French Financial Markets Authority (Autorité des marches financiers – "AMF") decision n°2018-01 of July 2, 2018 establishing liquidity contracts pertaining to equity securities as an admitted market practice (the "AMF Decision").

This new liquidity agreement, taking effect retroactively from January 1, 2019, is concluded for a period of 12 months, automatically renewable and replaces the existing liquidity agreement entered into on November 16, 2007 with Exane BNP Paribas.

The agreement involves the shares of Compagnie de Saint-Gobain (ISIN FR0000125007) (the "Shares") listed on the regulated market of Euronext Paris (trading platform on which the transactions under the contract will be carried out) and provides for the following resources to be made available to Exane BNP Paribas:

• €4,002,006.22 ; and
• 21,000 Shares,

it being specified that the resources made available to Exane BNP Paribas on December 31, 2018 were respectively of €942,205 in cash and 116,559 Shares.

It is also specified that, pursuant to the agreement, the situations or conditions leading to the suspension of the agreement are as follows:

• at the request of Compagnie de Saint-Gobain for a period it specifies; or
• when the conditions set out in article 5 of the AMF Decision are met.

The agreement may also be terminated in the following conditions:

• at any time by Compagnie de Saint-Gobain, without prior notice, under the conditions of closing of the liquidity account provided for in the agreement; and
• at any time by Exane BNP Paribas with a one-month prior notice.