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	Mar 31, 2023

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
Lawrence C. Qua	27,454,760	1,950,000	29,404,760	3.51
Alfredo R. de Borja	14,000	0	14,000	0
Cecilia Q. Chua	5,584,412	3,000	5,587,412	0.67
Virginia Judy Q. Dy	1,033,603	4,887,140	5,920,743	0.71
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 Maria 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	0.01
Medel T. Nera	0	1,000	1,000	0
Robert Joseph M. de Claro	1	0	1	0
	49,170,488	26,638,140	75,808,628	9.06

B. Officers

Name	Direct	Indirect	Total direct & indirect shares	% to Total Outstanding Shares
Lawrence C. Qua (same as above)	-	-	-	-
Raymond Maria C. Qua (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	40.05
Social Security System	21,662,198	-	21,662,198	2.6
Leonardo Siguion Reyna	75,006,000	-	75,006,000	8.96
	431,821,298	0	431,821,298	51.61

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	856,574,992
Total Number of Non-Public Shares	507,644,426
Total Number of Shares Owned by the Public	329,486,566
Public Ownership Percentage	39.36

Other Relevant Information
As discussed with the Listing and Disclosure Department, the number of listed shares will be reconciled by PSE.