SAINT_GOBAIN_REGISTRATION_DOCUMENT_2017

Capital and ownership structure Ownership structure

OWNERSHIP STRUCTURE 2. Major shareholders 2.1

At December 31, 2017, Compagnie de Saint-Gobain’s capital stock amounted to €2,214,228,364, represented by 553,557,091 common shares, corresponding to 622,287,669 theoretical voting rights. The following table presents, to the best of the Company’s knowledge, changes in the distribution of the Company’s capital stock and voting rights over the last three years. Decemberb31, 2017 Decemberb31, 2016 Decemberb31, 2015 Number of shares % of capital stock (1) % of voting rights (2) Number of shares % of capital stock (1) % of voting rights (2) Number of shares % of capital stock (1) % of voting rights (2) Group Savings PlanɸFunds 40,898,426 7.4 12.8 42,736,720 7.7 12.7 42,424,604 7.6 11.9 BlackRock Inc. (5) 31,494,449 5.7 5.1 (4) 28,199,633 5.1 4.4 (3) 29,025,332 5.2 4.3 Wendel 14,153,490 2.5 4.5 35,812,635 6.4 11.1 65,812,635 11.7 19.3 Treasury shares 2,110,133 0.4 0.0 1,230,716 0.2 0.0 1,674,679 0.3 0.0 Other shareholders (6) 464,900,593 84.0 77.6 447,300,654 80.6 71.8 422,006,189 75.2 64.5 TOTAL 100 100 100 100 100 100 The percentages of capital stock are calculated with reference to the total number of shares comprising the Company’s capital stock, including treasury shares. (1) The percentages of voting rights are calculated with reference to the number of voting rights exercisable at General Shareholders' Meetings. Since 1987, registered shares in the name of a (2) single shareholder for at least two years benefit from a double voting right. For further information, see Chapterɸ10, Sectionɸ1.1.1.

To the best of the Company’s knowledge, based on the disclosure threshold statement prepared by BlackRock, Inc. on Decemberɸ4, 2015. (3) To the best of the Company’s knowledge, based on the disclosure threshold statement prepared by BlackRock, Inc. on Juneɸ10, 2016. (4)

To the best of the Company’s knowledge, based on the disclosure threshold statement prepared by BlackRock, Inc. on August 29, 2017. For further information, see Chapterɸ8, Sectionɸ2.2.1. (5) The percentage of capital stock and voting rights held by all Directors and members of the Group’s Senior Management is less than 0.5%. The number of shares held by each Director is (6) shown in Chapterɸ6, Sectionɸ1.1.1.

To the best of the Company’s knowledge, at December 31, 2017 no other shareholder directly or indirectly, acting alone or in concert, held more than 5% of the Company’s capital stock or voting rights. According to the latest study of identifiable bearer shares, at December 31, 2017 the number of shareholders was estimated at approximately 210,000. The following graphic shows Compagnie de Saint-Gobain’s ownership structure at December 31, 2017 by major shareholder category.

0.4% TREASURY SHARES

6.7% INDIVIDUALS

2.5% WENDEL

7.4% GROUP SAVINGS PLAN (EMPLOYEES)

22.2% FRENCH INSTITUTIONAL INVESTORS

8

5.7% BLACKROCK

55.1% OTHER FOREIGN INSTITUTIONAL INVESTORS

207 SAINT-GOBAIN - REGISTRATION DOCUMENT 2017