Solvay SA

Major Shareholding Notification • May 11, 2018

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1) Status of the notification

2) Issuer

Name SOLVAY Identification number 0403-091-220

3) Reason for the notification

Acquisition or disposal of voting securities or voting rights

4) Notification by

A parent undertaking or a controlling person

5) Persons subject to the notification requirement

Name	Address (for legal entitles)
BlackRock, Inc.	55 East 52nd Street, New York, NY, 10055, U.S.A.
BlackRock (Netherlands) B.V.	Rembrandt Tower, 17th floor, Amsteiplein, 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 Bellevus 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.	1-6-3 Marunouchi Chiyoda-ku, Trust Tower Main, Tokyo, 100-8217, Japan

6) Persons that dispose of voting rights (only to be filled in if art. 7 of the Law applies)

Name Address (for legal entitles)

¹ Please continue entering the information in part if concerning the
persons referred to in Sections 5 and 6

Part II

7) Date on which the threshold is crossed

Г

07/05/2018 (DD/MM/YYYY)

8) Threshold that is crossed (in %)

同

. Many productions of the company of the contract of the contract of the contract of the contract of the contract of

Simple product popular Control Product 9) Denominator

105,876,416

Please enter the denominator before filling in the data

10) Notified details

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 eatthuoaa	Linked to securities	Not linked to the securities
BlackRock, Inc.	o	0		0.00%
BlackRock (Netherlands) B.V.	12,435	12,435		0.01%
BlackRock (Singapore) Limited	4,947	4,947		0.00%
BlackRock Advisors (UK) Limited	527,351	618,199		0.58%
BlackRock Advisors, LLC	101,481	101,481		0.10%
BlackRock Asset Management Canada Limited	47,139	47,139		0.04%
BlackRock Asset Management Deutschland AG	127,313	127,313		0.12%
BlackRock Asset Management North Asia Limited	1,138	570		0.00%
BlackRock Financial Management, Inc.	34,192	34,186		0.03%
BlackRock Fund Advisors	1,034,309	1,034,698		0.98%
BlackRock Institutional Trust Company, National Association	1,121,727	1,125,199		1.06%
BlackRock International Limited	7,962	7,962		0.01%
BlackRock Investment Management (Australia) Limited	31,328	31,328		0.03%
BlackRock Investment Management (UK) Limited	1,456,691	1,387,963		1.31%
BlackRock Investment Management, LLC	83,156	B2,322		0.08%
BlackRock Japan Co., Ltd.	190.971	125,206		0.12%
Subtotal	4,782,140	4,740,948		4.48%
TOTAL		4,740,948	0	4.48%	0.00%

Start with "groups" of holders. Add subtotats with $\sum$ , and then finish with the persons who are "slone".
For groups, start with the ultimate controlling natural person or legal entity.
The totals, subtotals and % will be

B) Equivalent financial instruments	After the transaction The second continuous companions are as a second control of the companions of the control of the control of the control of the control of the control of the control of the control of the control of the control of the contr B-Couplet second with
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			88,331	0.08%	physical	۰
BlackRock Institutional Trust Company, National Association	Securities Lent			100,000	0.09%	physical	$\bullet$
BlackRock Investment Management (UK) Limited	Securities Lent			307,486	0.29%	physical	۰
BlackRock Advisors (UK) Limited	Contract For Difference			1,382	0.00%	cash	÷
BlackRock Advisors, LLC	Contract For Difference			384	0.00%	cash	$\Rightarrow$
BlackRock Institutional Trust Company, National Association	Contract For Difference			7,911	0.01%	cash	۰
BlackRock International Limited	Contract For Difference			B1	0.00%	cash	٠
BlackRock Investment Management (UK) Limited	Contract For Difference			1,458	0.00%	cash	۰
BlackRock Investment Management, LLC	Contract For Difference			21,860	0.02%	cash	$+$
TOTAL				528,893	0.50%

The totals will be updated once you have clicked on

TOTAL (A & B) --------			# of voting rights % of voting rights .
	CALCULATE _________	5,269,841	4.98%

11) Full chain of controlled undertakings through which the holding is effectively held, if applicable

12) In case of proxy voting for only one GM

Holder		will cease to hold / will hold again	(DD/MM/YYYY) voting rights as of
13) Additional information
	The disclosure obligation arose due to total holding in voting rights for BlackRock, Inc. going below 5%
	Done at 12 Throgmorton Avenue, London EC2N 2DL, U.K.
On		08/05/2018 (DD/MM/YYYY)
	Name & capacity Jana Blumenstein, Director		Signature J. Bleece cees the

Expanding to the internal controlled undertakings through which the holding is effectively held, if applicable and we have been and

Name

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 HK Holdco Limited BlackRock Lux Finco S.a.r.l. BlackRock Trident Holding Company Limited BlackRock Japan Holdings GK BlackRock Japan Co., Ltd.

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 Group Limited BlackRock Investment Management (UK) 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 International Limited

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

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, 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 HK Holdco Limited BlackRock Asset Management North Asia 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 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 Capital Holdings, Inc. BlackRock Advisors, LLC

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 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.

While including BR Jersey International Holdings L.P.5 Computer Statements and Security Computer of Means of the Statements and the Computer of the Computer of the Computer of the Computer of the Computer of the Computer of the Computer o BlackRock Group Limited BlackRock (Netherlands) B.V.