Solvay SA

Major Shareholding Notification • Feb 21, 2018

1) Status of the notification

, ur

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 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 Kona
BlackRock Capital Management, Inc.	100 Bellevue Parkway, Wilmington, 19809, U.S.A.
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

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

	Name	Address (for legal entities)
$\bullet$	Please continue entering the information in part II concerning the persons referred to in Sections 5 and 6	Part II
7) Date on which the threshold is crossed
		15/02/2018 (DD/MM/YYYY)
8) Threshold that is crossed (in %)

$+$

$\left| + \right|$

9) Denominator

Please ents isssn 1or before filling in the data

10) Notified details

A) Vo tin igh ts g r	Pr iou oti fic ati ev s n on		Af the ter	tio tra ns ac n
	f v oti it o rig hts ng	oti it o f v	rig hts ng	ol 00 "	50 igh 9 r ts
of ing rig hts Ho lde vot rs		Lin ked uri tie to svc s	t li nk sd the No to Sec uri tie s	Lin ked uri tie to sec s	No t li nke d t he o t uri tie sec s
Bla ckR ock , n c,	0	0		0,0 0%
Ola ckF lor 'k (N eth crI rrd s) By	11, 64 1	11, 64 1		0.0 1%
Bla ckl k ( Sr iv :.' Lim ited mo gr	4,6 88	4,9 47		0,0 0%
ckR Ad 'iso Bta ocK (UK ) L imi ted rs	35 6.8 86	47 8,4 81		0,4 5%
Bla ck Ad vis Ro , L LC ctc ors	101 .4S 7	10 1.4 h7		0,1 0%
Bta ckR ock As Ca da Ma set ent na gem na Lk nit .d	39 ,91 7	39 ,91 7		0,0 4%
Bla ckR ock As Ma set ent na gem De chl and AG uts	140 ,77 8	140 ,24 6		0,1 3%
As Ma No rth Bla ckR ock set ent na gem As ia Lim ited	48 3	3,7 41		0,0 0%
Ca pit al Ma , I Bla ckR ock ent nag em nc.	0	9		0,0 0%
Bla ckR ock Fin ial Ma , I ent anc nag em nc.	19, 169	20 .96 0		0,0 2%
nd Ad vis Bla ckR ock Fu ors	1,0 39 .76 8	1.0 41 .69 0		0,9 8%
ack k I itu tio nal st C BI nst Tru oc om pan y, Na tio nal As iat ion soc	1,2 42 ,37 4	1,2 57 ,37 9		1.1 9%
Bla ckR ock Int atio nal Lim ited ern	4,0 98	4,0 98		0,0 0%
Bla ckR ock Ma Inv ent est nt me na gem (Au lia) Lim ited stra	28 .72 9	29 ,08 2		0,0 3%
Bla ckR ock Inv Ma est nt ent na gem me (UK ) L imi ted	1.3 42 .92 0	1.3 32 ,10 0		1.2 6%
Bla ckR ock Ma Inv ent est nt me na gem LL C	79 ,07 3	110 .86 8		0,1 0%
Bla clc ck Jap Co td. Ro ., L an	104 ,88 8	93 ,60 3		0,0 9%
Su bto tal	4,5 16, 86 9	4,6 70 21 9		4.4 1%
	TO TA L	46 70 ,21 9	0	4.4 1%	0.0 0%

^U Start with 'groups' of holders. Add subtotals with Z, and then finish with the persons who are "alone". For groups, start with the ultimate controlling natural person or legal entity.

The totals, subtotals and % will be updated once you have clicked on .

uiv ale fin cia l i B> Eq nt tru nts an ns me		Af ter	the tio tra ns ac n
Ho lde of uiv alo nt eq rs fin cia l i tru nts an ns me	Ty of fin cia l i nst t pe an rum en	pir ati da Ex te on	Ex ise rio d o erc pe r da te	f v oti rig hts 8 o ng tha be t m ay uir ed if t he acq ins is tru nt me ise d ex erc	% of tin igh ts vo g r	Se ttle nt me
Bla ckR ock Ad vis (UK ) L imi ted ors	Se itie s L ent cur			114 26 4	0.1 1%	ph ysi cal	—
lnv mi 'ot M p' Bla ckR ock est ,,,s ,r, IUK ) L imi ted	Se itie s L ent cur			39 1,3 64	0.3 7%	ph ysi cat	-
Ad vis ) L imi ted Bla ckR ock (UK ors	For Dif fer ntr act enc e co			1,4 99	0.0 0%	sh ca	-
LC Bla ckR ock Ad vis , L ors	Co Di ffe For ntr act ren ce			25 5	0.0 0%	sh ca	-
Bl ack Ro ckl itu tio lTr Co nst ust ntp na arr y, As iat ion Na tio nal soc	Co tFo cD iffe crt rac rer rce			12 1.0 69	01 1%	st, ca	-
Bla ckR ock Int ati al Lim ited ern on	iffe Co Fo r D ntr act ren ce			2.6 89	0.0 0%	sh ca	-
Bla ckA ock Inv Ma est nt nt me na ge me (UK ) L imi ted	Fo Co r D iffe ntr act ren ce			65 ,65 1	0.0 6%	sh ca	—
Bla ckR ock Inv Ma est nt ent na gem me LL C	Co For Dif fer ntr act enc e			20 .66 4	0.0 2%	sh ca	+
	TO TA L			71 7,4 55	0.6 8%
of N o f v oti rig hts % TO TA L ( A & B) ng vo
					tin igh ts g r
			CA LC UL AT E	5,3 87 ,67 4	5.0 9%
Fu ll ch ain of lle d 11 ) nt co ro un	de ki th h wh Ic h th ho ld in is rta ng s ro ug e g Co ol" of H ntr '. ''	ef fe cti ly he ld ve tab	lic ab le , i f a pp
of fo 12 ) In v o r ca se or oy	nl GM r o y on e					(DD !MM ) IYV YY

0 The totals will be updated once you have clicked on

& B) TO TA L ( A	f v oti rig hts N o ng	of tin igh % ts vo g r
	CA LC UL AT E	5,3 87 4 ,67	5.0 9%

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

H '. ''	ol" of Co tab ntr

Ho lde r	will hol d / to ce ase

13) Additional information

obl iga tio . I e d isc los e d al h olc ing in v oti rig hts Bla ckN ock goi abo 5% to tot n a ros ue ng 101 nc. ng ve ure

Do vt ne	,rlo n A , L ond EC 2N 2D L, U.K ven ue on '"
On	16/ 02 /20 18j	(DD /M MJ YY YY )
Na & n ilyl irp me ac	cla rk, Vic e P ide nt res		Sig tur na e	/4 F '— —

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

Name

BlackRock, Inc. BlackRock Holdco 2, Inc. Black Rock 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. Black Rock Holdco 2, Inc. BlackRock Financial Management, Inc.

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