Manila Water : LIST OF TOP 100 STOCKHOLDERS AS OF DECEMBER 31, 2016

January 9, 2017

PHILIPPINE STOCK EXCHANGE, INC.

Tower One andExchange Plaza, Ayala Triangle,Ayala Avenue, Makati City,Philippines

AttentionMR. JOSE VALERIANO B.ZUNO Ill

OIC -Head,Disclosure Department

Subject List of Top 100 Stockholders as of December 31,2016 Gentlemen

MANILA WATER

CARE IN EVERY DROP

Please seeattached List ofTop 100 Stockholdersof Manila WaterCompany,Inc.asof December 31, 2016.

ChiefLegal Counsel

Assistant CorporateSecretary

MANILA WATER COMPANY. INC.

MWSS Administration Building. 489 Katipunan Road, 1105 Balara, Quezon City,Philippines

T:[phone]

W:www.manilawater .com Customer Service Hotline 1627

RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL‌

1 01000001

2 16000096

3 16000095

4 01000250

AYALA CORPORATION

33/F TOWER 1, AYALA TRIANGLE AYALA AVENUE, MAKATI CITY

PCD NOMINEE CORPORATION (NON-FILIPINO) C/O PCD

PCD NOMINEE CORPORATION (FILIPINO) C/O PCD

ANTONINO AQUINO

31 FORDHAM ST. WHITE PLAINS, QUEZON CITY

FIL U 844,537,196 41.1177% 844,537,196

NOF U 758,094,828 36.9091% 758,094,828

FIL U 374,961,174 18.2556% 374,961,174

FIL U 7,200,000 0.3505% 7,200,000

5	0500000013	ESOWN ADMINISTRATOR 2014 C/O MANILA WATER COMPANY INC., MWSS	FIL	U	6,317,015	0.3075%	6,317,015
ADMINISTRATION
BUILDING, 489 KATIPUNAN ROAD, BALARA, QUEZON CITY

6	1300000033	ESOWN ADMINISTRATOR 2013	FIL	U	5,714,729	0.2782%	5,714,729
C/O MANILA WATER COMPANY
MWSS ADMINISTRATION BUILDING,
KATIPUNAN ROAD, 1105 BALARA, QUEZON CITY

7	0500000002	ESOWN ADMINISTRATOR 2008 C/O MANILA WATER COMPANY MWSS-ADMIN. BUILDING KATIPUNAN ROAD, 1105 BALARA, QUEZON CITY	FIL	U	4,984,630	0.2426%	4,984,630
8	0500000006	ESOWN ADMINISTRATOR 2009	FIL	U	4,701,080	0.2288%	4,701,080
C/O MANILA WATER COMPANY, INC.,
MWSS-ADMIN BUILDING,
KATIPUNAN ROAD, 21105 BALARA,
QUEZON CITY
9	0300000065	JANINE T. CARREON AS MANILA WATER CORP INC ESOP ADMINISTRATOR	FIL	U	4,644,924	0.2261%	4,644,924
C/O MANILA WATER COMPANY INC. MWSS ADMINISTRATION
BUILDING, 489 KATIPUNAN ROAD, 1105 BALARA,
QUEZON CITY

10 0500000007	ESOWN ADMINISTRATOR 2011	FIL	U	4,252,307	0.2070%	4,252,307
C/O MANILA WATER COMPANY
MWSS ADMIN BUILDING
KATIPUNAN ROAD
1105 BALARA, QUEZON CITY

RANK	STOCKHOLDER NUMBER	STOCKHOLDER NAME	NATIONALITY	CERTIFICATE CLASS	OUTSTANDING SHARES	PERCENTAGE	TOTAL
11	0500000009	ESOWN ADMINISTRATOR 2012 C/O MANILA WATER COMPANY MWSS- ADMIN LDNG., KATIPUNAN ROAD BALARA , QUEZON CITY 1105	FIL	U	4,150,482	0.2020%	4,150,482

12 01000002

ANTONINO T. AQUINO

#31 FORDHAM ST. WHITE PLAINS, QUEZON CITY

FIL U 3,600,001 0.1752% 3,600,001

13	03000418	ERNESTO O. CHUA CHIACO AND/OR MARGARET SY CHUA CHIACO	FIL	U	2,240,000	0.1090%	2,240,000
223 RECOLETOS ST. URDANETA VILL., MAKATI CITY 1225

14	14000070	SHERISA P. NUESA	FIL	U	1,900,000	0.0925%	1,900,000
306 LIAN STREET,
AYALA ALABANG VILLAGE,
MUNTINLUPA CITY 1780

15 03000392

GENEVIEVE SY CHUACHIACO 223 RECOLETOS ST.

URDANETA VILLAGE, MAKATI CITY 1225

FIL U 1,507,000 0.0733% 1,507,000

16	0300000028	ERNESSON SY CHUA CHIACO	FIL	U	1,274,500	0.0620%	1,274,500
223 RECOLETOS STREET,
URDANETA VILLAGE,
MAKATI CITY 1225

17 0300000030

18 20000148

19 13000277

20 1000000007

MARGARET SY CHUA CHIACO

223 RECOLETOS STREET, URDANETA VILLAGE, MAKATI CITY 1225

LOZANO A. TAN

4/F SYCIP LAW ALL ASIA CENTER,

105 PASEO DE ROXAS, MAKATI CITY

RUEL TERNATE MARANAN NO. 37 QUEENSVILLE ST. WHITE PLAINS, QUEZON CITY

VIRGINIA Z. JUGO

19 SARAZEN STREET, AYALA HILLSIDE ESTATE, OLD BALARA, QUEZON CITY

FIL U 1,106,000 0.0538% 1,106,000

FIL U 950,000 0.0462% 950,000

FIL U 900,000 0.0438% 900,000

FIL U 700,000 0.0340% 700,000

RANK	STOCKHOLDER NUMBER	STOCKHOLDER NAME	NATIONALITY	CERTIFICATE CLASS	OUTSTANDING SHARES	PERCENTAGE	TOTAL
21	0100000013	MAGDALENO B. ALBARRACIN AND/OR TRINIDAD ALBARRACIN	FIL	U	625,000	0.0304%	625,000
PENTHOUSE, PHINMA PLAZA
39 PLAZA DRIVE ROCKWELL CENTER
MAKATI CITY

22 0600000003

FORESIGHT REALTY & DEVELOPMENT CORPORATION CONCEPCION INDUSTRIES BLDG., C/O RAUL CONCEPCION, 308 SEN. GIL PUYAT AVENUE EXTN., MAKATI CITY

FIL U 618,000 0.0300% 618,000

23	0500000001	ESOWN ADMINISTRATOR 2007 C/O MANILA WATER MWSS-ADMIN. BLDG. KATIPUNAN ROAD, 1105 BALARA QUEZON CITY	FIL	U	557,499	0.0271%	557,499
24	03000406	CONSTANTINO CHUA AND/OR WILLINGTON AND/OR GEORGE WY CHUA	FIL	U	500,000	0.0243%	500,000
ROOM 307 WELLINGTON BLDG.
ORIENTE ST., BINONDO
MANILA

24 02000188

FILEMON BERBA JR. 8 GARDENIA DRIVE

BEVERLY HILLS, ANTIPOLO CITY

FIL U 500,000 0.0243% 500,000

25	08000020	ALFREDO HENARES C/O FILIPINAS PALMOIL INDUSTRIES INC. 7/F CITIBANK CENTER, 8741 PASEO DE ROXAS MAKATI CITY	FIL	U	400,000	0.0194%	400,000
26	04000091	LOIDA STA MARIA DIÑO 4 GUIHO ST. TOWN AND COUNTRY EXECUTIVE VILLAGE, MAYAMOT ANTIPOLO CITY	FIL	U	386,000	0.0187%	386,000

27 0100000032

JORGE B. ABAD JR

ROYAL BAY CONDOMINIUM, 465 UN AVENUE, ERMITA MANILA

FIL U 370,000 0.0180% 370,000

28	0700000023	MANUEL I. GUTIERREZ AND/OR MARTINA MARIA ELIZABETH Y. GUTIERREZ	FIL	U	352,100	0.0171%	352,100
#19 BETTLE STREET, VALLE VERDE 6, BRGY UGONG, PASIG CITY

29 1800000003

OSCAR S. REYES

6 KASIYAHAN HOMES, 58 MCKINLEY ROAD, FORBES PARK, MAKATI CITY

FIL U 330,000 0.0160% 330,000