Solvay SA

Declaration of Voting Results & Voting Rights Announcements • Jun 20, 2017

PARTICIPATION NOTIFICATION BY BLACKROCK INC.

Brussels, Tuesday June 20, 2017, 8h00 CET --- According to the Belgian transparency legislation in force (Law of May 2, 2007), BlackRock Inc. (55 East 52nd Street, New York, NY, 10055, U.S.A.) has notified Solvay SA that on June 14, 2017, the number of direct voting rights held by BlackRock Inc. together with the voting rights held through equivalent financial instruments, crossed upward the 3% statutory threshold, detaining 3.03% of the existing voting rights emitted by Solvay S.A.

The declarations by BlackRock Inc. are published in the Investor Relations Section of Solvay's website.

Notification on June 15, 2017:

• Reason for the notification: Acquisition of voting securities or voting rights
• Notified by: BlackRock Inc. (55 East 52nd Street, New York, NY, 10055, U.S.A.)
• Persons subject to the notification requirement:

Name	Address (for legal entities)
BlackRock, Inc.	55 East 52nd Street, New York, NY, 10055, U.S.A.
BlackRock (Netherlands) B.V.	Rembrandt Tower, 17th floor, Amstelplein, Amsterdam, Netherlands
BlackRock (Singapore) Limited	20 Anson Road #18-01, Singapore, 79912, Singapore
BlackRock Advisors (UK) Limited	12 Throgmorton Avenue, London, EC2N 2DL, U.K.
BlackRock Advisors, LLC	100 Bellevue Parkway, Wilmington, DE, 19809, U.S.A.
BlackRock Asset Management Canada Limited	161 Bay Street, Suite 2500, Toronto, Ontario, M5J 2S1, Canada
BlackRock Asset Management Deutschland AG	Max-Joseph-Straße 6, Munich, 80333, Germany
BlackRock Asset Management North Asia Limited	15/F, 16/F, 17/F Citibank Tower & 17/F ICBC Tower, 3 Garden Road, Central, Hong Kong
BlackRock Financial Management, Inc.	55 East 52nd Street, New York, NY, 10055, U.S.A.
BlackRock Fund Advisors	400 Howard Street, San Francisco, CA, 94105, U.S.A.
BlackRock Institutional Trust Company, National Association	400 Howard Street, San Francisco, CA, 94105, U.S.A.
BlackRock International Limited	Exchange Place One, 1 Semple Street, Edinburgh, EH3 8BL, U.K.
BlackRock Investment Management (Australia) Limited	Level 37, Chifley Tower, 2 Chifley Square, Sydney NSW 2000 Australia
BlackRock Investment Management (UK) Limited	12 Throgmorton Avenue, London, EC2N 2DL, U.K.
BlackRock Investment Management, LLC	1 University Square Drive, Princeton, NJ, 8540, U.S.A.
BlackRock Japan Co., Ltd.	1-8-3 Marunouchi Chiyoda-ku, Trust Tower Main, Tokyo, 100-8217, Japan

• Date on which the threshold is crossed: June 14, 2017
• Threshold crossed: 3% upward (lowest declaration threshold)
• Denominator: 105,876,416

Notification details: The voting rights and equivalent financial instruments total 3,205,652 voting rights or 3.03%.

A) Voting rights	Previous notification	After the transaction
	# of voting rights	# of voting rights		% of voting rights
Holders of voting rights		Linked to securities	Not linked to the securities	Linked to securities	Not linked to the securities
BlackRock, Inc.		0		0.00%
BlackRock (Netherlands) B.V.		10,456		0.01%
BlackRock (Singapore) Limited		4,409		0.00%
BlackRock Advisors (UK) Limited		436,407		0.41%
BlackRock Advisors, LLC		40,812		0.04%
BlackRock Asset Management Canada Limited		33,841		0.03%
BlackRock Asset Management Deutschland AG		116,939		0.11%
BlackRock Asset Management North Asia Limited		855		0.00%
BlackRock Financial Management, Inc.		3,553		0.00%
BlackRock Fund Advisors		930,783		0.88%
BlackRock Institutional Trust Company, National Association		1,055,379		1.00%
BlackRock International Limited		2,506		0.00%
BlackRock Investment Management (Australia) Limited		31,694		0.03%
BlackRock Investment Management (UK) Limited		139,021		0.13%
BlackRock Investment Management, LLC		79,039		0.07%
BlackRock Japan Co., Ltd.		102,928		0.10%
Subtotal		2,988,622		2.82%

B) Equivalent financial instruments	After the transaction
Holders of equivalent financial instruments	Type of financial instrument	Expiration date	Exercise period or date	# of voting rights that may be acquired if the instrument is exercised	% of voting rights	Settlement
BlackRock Advisors (UK) Limited	Securities Lent			199,896	0.19%	physical
BlackRock Fund Advisors	Securities Lent			4,091	0.00%	physical
BlackRock Institutional Trust Company, National Association	Securities Lent			309	0.00%	physical
BlackRock Advisors (UK) Limited	Contract For Difference			884	0.00%	cash
BlackRock Advisors, LLC	Contract For Difference			110	0.00%	cash
BlackRock Institutional Trust Company, National Association	Contract For Difference			7,691	0.01%	cash
BlackRock Investment Management, LLC	Contract For Difference			4,049	0.00%	cash
Subtotal				217,030	0.20%

Transparency declaration

Regulated information

Chain of control:

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Group Limited BlackRock (Netherlands) B.V.

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock (Singapore) Holdco Pte. Ltd. BlackRock (Singapore) Limited

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Group Limited BlackRock Advisors (UK) Limited

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock Capital Holdings, Inc. BlackRock Advisors, LLC

BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Holdco 3, LLC BlackRock Canada Holdings LP BlackRock Canada Holdings ULC BlackRock Asset Management Canada Limited

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Group Limited BlackRock Investment Management (UK) Limited BlackRock Asset Management Deutschland AG

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock (Singapore) Holdco Pte. Ltd. BlackRock Asia-Pac Holdco, LLC BlackRock HK Holdco Limited BlackRock Asset Management North Asia Limited BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc.

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock Holdco 4, LLC BlackRock Holdco 6, LLC BlackRock Delaware Holdings Inc. BlackRock Fund Advisors

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock Holdco 4, LLC BlackRock Holdco 6, LLC BlackRock Delaware Holdings Inc. BlackRock Fund Advisors BlackRock Institutional Trust Company, National Association

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Group Limited BlackRock International Limited

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Australia Holdco Pty. Ltd. BlackRock Investment Management (Australia) Limited

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock Group Limited BlackRock Investment Management (UK) Limited

BlackRock, Inc. Trident Merger, LLC BlackRock Investment Management, LLC

BlackRock, Inc. BlackRock Holdco 2, Inc. BlackRock Financial Management, Inc. BlackRock International Holdings, Inc. BR Jersey International Holdings L.P. BlackRock (Singapore) Holdco Pte. Ltd. BlackRock Asia-Pac Holdco, LLC BlackRock HK Holdco Limited BlackRock Cayco Limited BlackRock Trident Holding Company Limited BlackRock Japan Holdings GK BlackRock Japan Co., Ltd.

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Solvay is a multi-specialty chemical company, committed to developing chemistry that addresses key societal challenges. Solvay innovates and partners with customers in diverse global end markets. Its products and solutions are used in planes, cars, smart and medical devices, batteries, in mineral and oil extraction, among many other applications promoting sustainability. Its lightweighting materials enhance cleaner mobility, its formulations optimize the use of resources and its performance chemicals improve air and water quality. Solvay is headquartered in Brussels with around 27,000 employees in 58 countries. Net sales were € 10.9 billion in 2016, with 90% from activities where Solvay ranks among the world's top 3 leaders. Solvay SA (SOLB.BE) is listed on Euronext Brussels and Paris (Bloomberg: SOLB.BB - Reuters: SOLB.BR) and in the United States its shares (SOLVY) are traded through a level-1 ADR program.

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