Solvay SA

Major Shareholding Notification • Mar 20, 2024

2) Issuer

1) Status of the notification

	[Final
	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)
David Einhorn	140 East 45th Street, 24th Floor, New York, NY 10023, USA
DME Advisors GP, Lie	Corporation Trust Center, 1209 Orange Street, Wilmington, DE 19801 USA
DME Capita! Management, LP	Corporation Trust Center, 1209 Orange Street, Wilmington, DE 19801, USA
DME Advisors, LP	Corporation Trust Center, 1209 Orange Street, Wilmington, DE 19801, USA

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

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 securities	Linked to securities	Not linked to the securities
David Einhorn	0	0		0.00%
DME Advisors, LP	132,170	673,120		0.64%
DME Capital Management, LP	3,175,960	4,840,480		4.57%

105,876,416

3,308,130 Subtotal	5,513,600		5.21%
TOTAL	5,513,600	0	5.21%	0.00%

E

Start with "groups" of holders. Add subtotals with L, 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 .

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
	TOTAL			0	0.00%
	The totals will be updated once you have clicked on
	TOTAL (A & B)				U of voting rights % of voting rights
			CALCULATE	5,513,600	5.21%

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

David Einhorn.		DME Advisors, LP and DME Capital Management, LP are controlled by DME Advisors GP, LLC. DME Advisors GP, LLC is controlled by

12) In case of proxy voting for only one GM

Holder	will cease to hold / will hold again	(DD/MMfYYYY) voting rights as of
Additional information 13)
DME Advisors, LP and DME Capital Management, LP are the discretionary investment managers and exercise the voting rights at their discretioin In the absence of specific instructions.

	(DD/MM/YYYY)
	Signature
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