The PSE makes no representation on the accuracy, validity, correctness and completeness of the information stated in the respective PORs of listed companies. The PSE shall use the information contained in the POR submitted by the company in computing a company's weight in the index and this may be updated or adjusted consistent with the policy of the Exchange in managing the PSEi and sector indices.

Ionics, Inc.ION

PSE Disclosure Form POR-1 - Public Ownership Report Reference: Amended Rule on Minimum Public Ownership

Report Type

• Monthly
• Quarterly
• Others

Report Date	Dec 31, 2025

Computation of Public Ownership

Number of Issued Common Shares	857,974,992
Less: Number of Treasury Common Shares, if any	20,844,000
Number of Outstanding Common Shares	837,130,992

Less :

A. Directors

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
Earl Lawrence S. Qua	0	610,000	610,000	0.07
Alfredo R. de Borja	14,000	0	14,000	0
Cecilia Q. Chua	5,584,412	3,000	5,587,412	0.67
Guillermo D. Luchangco	0	19,620,000	19,620,000	2.34
Meliton C. Qua	6,497,362	0	6,497,362	0.78
Raymond C. Qua	8,562,350	0	8,562,350	1.02
Monica Siguion Reyna Villonco	24,000	127,000	151,000	0.02
Lilia B. De Lima	0	50,000	50,000	0
Medel T. Nera	0	1,000	1,000	0
Jay A. Chavez	0	1,000	1,000	0
Marie Lourdes Arsenia Q. Dy	0	150,000	150,000	0.02
	20,682,124	20,562,000	41,244,124	4.92

B. Officers

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
Alfredo R. De Borja (same as above)	-	-	-	-
Raymond C. Qua (same as above)	-	-	-	-
Cecilia Q. Chua (same as above)	-	-	-	-
Ronan R. Andrade	-	-	-	-
Judy C. Qua	-	-	-	-
Cesar G. Caubalejo	-	-	-	-
Manuel R. Roxas	14,500	-	14,500	-
Krisha F. Villanueva	-	-	-	-
	14,500	0	14,500	0

C. Principal/Substantial Stockholders

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
Aqua Holdings, Inc.	335,153,100	-	335,153,100	40.04
Leonardo Siguion Reyna	75,006,000	-	75,006,000	8.96
	410,159,100	0	410,159,100	49

D. Affiliates

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
-	-	-	-	-
	0	0	0	0

E. Government

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
-	-	-	-	-
	0	0	0	0

F. Banks

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
-	-	-	-	-
	0	0	0	0

G. Employees

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
-	-	-	-	-
	0	0	0	0

H. Lock-Up Shares

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
-	-	-	-	-
	0	0	0	0

I. Others

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
-	-	-	-	-
	0	0	0	0

Number of Listed Common Shares	857,974,992
Total Number of Non-Public Shares	451,417,724
Total Number of Shares Owned by the Public	385,713,268
Public Ownership Percentage	46.08

Other Relevant Information
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