Brussels, December 23, 2015 --- Solvay in accordance with Article 15 of the Law of 2 May 2007 on disclosure of major holdings in issuers whose shares are admitted to trading on a regulated market,  announces today that further to its rights issue which closed on 21 December 2015:

• the total capital of Solvay SA amounts to € 1,588,146,240;

• the total number of securities granting the right to vote of Solvay  amounts to 105,876,416 shares (without nominal value);

• the total number of voting rights of Solvay  amounts to 105,876,416 (denominator for notification purposes in the framework of the transparency rules).

The applicable thresholds regarding the obligation to notify a major holding in the framework of the transparency rules, in accordance with Article 18 of the abovementioned Law of 2 May 2007 and the Articles of Association of Solvay, are the following: 3%, 5%, 7.5% and multiples of 5%.

Any notification must be addressed to the company and to the FSMA in accordance with the abovementioned Law of 2 May 2007 and its implementing provisions.

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These written materials do not constitute an offer to sell, or a solicitation of offers to purchase or subscribe for, securities in the United States or any other jurisdiction. The securities referred to herein have not been, and will not be, registered under the Securities Act of 1933, as amended, and may not be offered, exercised or sold in the United States absent registration or an applicable exemption from registration requirements. There is no intention to register any portion of the offering in the United States or to conduct a public offering of securities in the United States.

The issue, exercise or sale of securities in the offering, are subject to specific legal or regulatory restrictions in certain jurisdictions. Solvay assumes no responsibility in the event there is a violation by any person of such restrictions.

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An international chemical and advanced materials company, Solvay assists its customers in innovating, developing and delivering high-value, sustainable products and solutions which consume less energy and reduce CO2 emissions, optimize the use of resources and improve the quality of life. Solvay serves diversified global end markets, including automotive and aerospace, consumer goods and healthcare, energy and environment, electricity and electronics, building and construction as well as industrial applications. Solvay is headquartered in Brussels with about 30,000 employees spread across 53 countries. It generated pro forma net sales of close to € 12 billion in 2014, with 90% made from activities where it ranks among the world’s top 3 players. Solvay SA (SOLB.BE) is listed on EURONEXT Brussels and EURONEXT Paris (Bloomberg: SOLB:BB - Reuters: SOLB.BR).