Untitled - Manila Water Company

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
1 16000096 PCD NOMINEE CORPORATION (NON-FILIPINO)
NOF U 882,004,426 43.1994% 882,004,426
C/O PCD
2 01000001 AYALA CORPORATION
FIL U 651,912,996 31.9298% 651,912,996
33/F TOWER 1, AYALA TRIANGLE
AYALA AVENUE, MAKATI CITY
3 16000095 PCD NOMINEE CORPORATION (FILIPINO)
FIL U 268,213,324 13.1367% 268,213,324
C/O PCD
4 13000001 MITSUBISHI CORPORATION
JAP U 168,999,999 8.2774% 168,999,999
C/O MANILA WATER CO.,INC.
5 05000101 ESOWN ADMINISTRATOR 2005
FIL U 16,147,501 0.7908% 16,147,501
C/O MANILA WATER
6 0500000006 ESOWN ADMINISTRATOR 2009
FIL U 6,214,157 0.3043% 6,214,157
C/O MANILA WATER COMPANY, INC.,
MWSS-ADMIN BUILDING,
KATIPUNAN ROAD, 21105 BALARA,
QUEZON CITY
7 0500000002 ESOWN ADMINISTRATOR 2008
FIL U 5,466,370 0.2677% 5,466,370
C/O MANILA WATER COMPANY
MWSS-ADMIN. BUILDING
KATIPUNAN ROAD, 1105
BALARA, QUEZON CITY
8 13000155 RUEL T. MARANAN (AS MWCI ESOP ADMINISTRATOR)
FIL U 4,644,924 0.2275% 4,644,924
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
9 0500000007 ESOWN ADMINISTRATOR 2011
FIL U 4,507,400 0.2207% 4,507,400
C/O MANILA WATER COMPANY
MWSS ADMIN BUILDING
KATIPUNAN ROAD
1105 BALARA, QUEZON CITY
10 0500000009 ESOWN ADMINISTRATOR 2012
FIL U 4,312,414 0.2112% 4,312,414
C/O MANILA WATER COMPANY
MWSS- ADMIN LDNG., KATIPUNAN ROAD
BALARA , QUEZON CITY 1105
11 03000418 ERNESTO O. CHUA CHIACO AND/OR MARGARET SY CHUA CHIACO
FIL U 2,240,000 0.1097% 2,240,000
223 RECOLETOS ST.
URDANETA VILL., MAKATI CITY 1225
12 14000070 SHERISA P. NUESA
FIL U 1,900,000 0.0930% 1,900,000
306 LIAN STREET,
AYALA ALABANG VILLAGE,
MUNTINLUPA CITY 1780
13 03000392 GENEVIEVE SY CHUACHIACO
FIL U 1,462,500 0.0716% 1,462,500
223 RECOLETOS ST.
URDANETA VILLAGE, MAKATI CITY 1225
14 0300000028 ERNESSON SY CHUA CHIACO
FIL U 1,136,000 0.0556% 1,136,000
223 RECOLETOS STREET,
URDANETA VILLAGE,
MAKATI CITY 1225
15 0300000030 MARGARET SY CHUA CHIACO
FIL U 1,090,000 0.0533% 1,090,000
223 RECOLETOS STREET, URDANETA VILLAGE,
MAKATI CITY 1225
Page 1 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
16 0500000001 ESOWN ADMINISTRATOR 2007
FIL U 1,027,499 0.0503% 1,027,499
C/O MANILA WATER
MWSS-ADMIN. BLDG.
KATIPUNAN ROAD, 1105 BALARA
QUEZON CITY
17 20000148 LOZANO A. TAN
FIL U 850,000 0.0416% 850,000
4/F SYCIP LAW ALL ASIA CENTER,
105 PASEO DE ROXAS, MAKATI CITY
18 0100000013 MAGDALENO B. ALBARRACIN AND/OR TRINIDAD ALBARRACIN
FIL U 625,000 0.0306% 625,000
PENTHOUSE, PHINMA PLAZA
39 PLAZA DRIVE ROCKWELL CENTER
MAKATI CITY
19 0600000003 FORESIGHT REALTY & DEVELOPMENT CORPORATION
FIL U 618,000 0.0302% 618,000
308 SEN. GIL PUYAT AVENUE EXTN.,
MAKATI CITY
20 05000102 ESOWN ADMINISTRATOR 2006
FIL U 597,313 0.0292% 597,313
C/O MANILA WATER
21 03000406 CONSTANTINO CHUA AND/OR WILLINGTON AND/OR GEORGE WY CHUA
FIL U 500,000 0.0244% 500,000
ROOM 307 WELLINGTON BLDG.
ORIENTE ST., BINONDO
MANILA
21 13000277 RUEL TERNATE MARANAN
FIL U 500,000 0.0244% 500,000
NO. 37 QUEENSVILLE ST.
WHITE PLAINS, QUEZON CITY
22 08000020 ALFREDO HENARES
FIL U 400,000 0.0195% 400,000
C/O FILIPINAS PALMOIL
INDUSTRIES INC. 7/F CITIBANK
CENTER, 8741 PASEO DE ROXAS
MAKATI CITY
23 0100000008 ADMINISTRATOR 2006 ESOWN II
FIL U 398,499 0.0195% 398,499
C/O MANILA WATER ESOWN
24 0100000032 JORGE B. ABAD JR
FIL U 370,000 0.0181% 370,000
ROYAL BAY CONDOMINIUM, 465 UN AVENUE, ERMITA
MANILA
25 0800000004 EDDIE LIM HAO
FIL U 329,100 0.0161% 329,100
804 FEDERAL TOWER BUILDING
DASMARIÑAS ST., BINONDO, MANILA
26 1200000012 ROY S. LIM
FIL U 300,000 0.0146% 300,000
21 DALAHICAN STREET, DAMAR VILLAGE, QUEZON CITY
26 0100000001 ROGER C ANG
FIL U 300,000 0.0146% 300,000
401 DUKE ST., GREENHILLS EAST
MANDALUYONG
METRO MANILA
27 16000085 ROLAND RONQUILLO POLIDO
FIL U 288,400 0.0141% 288,400
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
28 0300000020 RAUL THOMAS CONCEPCION
FIL U 273,100 0.0133% 273,100
17 TANGUILE, NORTH FORBES PARK,
MAKATI CITY
Page 2 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
29 2300000001 WILCAR MANAGEMENT & DEVELOPMENT CORPORATION
FIL U 260,000 0.0127% 260,000
69 MERCEDES STREET,
BEL-AIR VILLAGE, MAKATI CITY
30 06000102 MA. FIORELLA D. FABELLA
FIL U 225,000 0.0110% 225,000
47 ORANGE ST, SSS VILLAGE,
MARIKINA CITY
31 04000091 LOIDA STA MARIA DIÑO
FIL U 220,000 0.0107% 220,000
4 GUIHO ST. TOWN AND COUNTRY
EXECUTIVE VILLAGE, MAYAMOT
ANTIPOLO CITY
32 19000233 JOSE MA CLEMENTE SALCEDA
FIL U 200,000 0.0097% 200,000
63-C MALAYA ST, MANDALUYONG CITY
32 13000126 JUAN JOSE DINIO MIJARES II
FIL U 200,000 0.0097% 200,000
B5 L11 SAMPAGUITA AVE.,
SEABREEZE SUBD., STA. CRUZ,
CAVITE CITY, CAVITE 4100
32 1800000003 OSCAR S. REYES
FIL U 200,000 0.0097% 200,000
C/O MS. FELICIA M. CARVAJAL
MWC ESOWN ADMINISTRATOR
32/F TOWER ONE AYALA TRIANGLE
AYALA AVENUE, MAKATI CITY
32 01000250 ANTONINO AQUINO
FIL U 200,000 0.0097% 200,000
31 FORDHAM ST. WHITE PLAINS,
QUEZON CITY
33 0100000023 MAGDALENO B. ALBARRACIN, JR.
FIL U 185,000 0.0090% 185,000
PENTHOUSE PHINMA PLAZA BUILDING
39 PLAZA DRIVE, ROCKWELL CENTER
MAKATI CITY
34 01000125 BUHAY SANTIAGO ASTUDILLO
FIL U 175,400 0.0085% 175,400
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
35 02000089 ENCARNACION J. BUENAVENTURA
FIL U 174,650 0.0085% 174,650
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
36 2500000005 YE GUILONG
CHN U 165,000 0.0080% 165,000
UNIT 706 AYALA TOWER ONE
AYALA AVENUE COR. PASEO DE ROXAS
MAKATI CITY
36 1000000004 JIANG LIANG
CHN U 165,000 0.0080% 165,000
UNIT 706 AYALA TOWER ONE
AYALA AVENUE COR. PASEO DE ROXAS
MAKATI CITY
37 03000023 JULIA REINORA B. CALUBAQUIB
FIL U 150,345 0.0073% 150,345
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
38 20000145 RENE TIANCO TALE
FIL U 150,000 0.0073% 150,000
807 JAMAICA ST, VERMONT PARK
EXECUTIVE VILLAGE
ANTIPOLO CITY
38 0100000015 VERONA S. AGUSTINES
FIL U 150,000 0.0073% 150,000
#300 MANGO DRIVE
AYALA ALABANG VILL.
MUNTINLUPA CITY
Page 3 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
39 19000024 DEBLYN ELISCUPIDES SAMONTE
FIL U 146,050 0.0071% 146,050
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
40 0800000001 HI-LIGHT CORPORATION
FIL U 140,400 0.0068% 140,400
1120 J.P. RIZAL STREET, MAKATI CITY
41 0700000023 MANUEL I. GUTIERREZ AND/OR MARTINA MARIA ELIZABETH Y. GUTIERREZ
FIL U 127,000 0.0062% 127,000
12 SAMAR AVENUE
SOUTH TRIANGLE, QUEZON CITY
42 12000038 AILEEN PAULOS LAZARO
FIL U 126,620 0.0062% 126,620
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
43 1900000006 HENRY SOESANTO
IDN U 120,000 0.0058% 120,000
1389 CAMPANILLA ST.,
DASMARIÑAS VILLAGE,
MAKATI CITY
43 0300000052 KRISTINE CO CHUACHIACO
FIL U 120,000 0.0058% 120,000
113 RENTAS STREET, BINONDO, MANILA 1006
43 0300000051 BENEDICT CO CHUACHIACO
FIL U 120,000 0.0058% 120,000
113 RENTAS STREET, BINONDO, MANILA 1006
43 0300000050 ANTHONY CO CHUACHIACO
FIL U 120,000 0.0058% 120,000
113 RENTAS STREET, BINONDO, MANILA 1006
44 16000026 ROLANDO CORTEZ PALAC
FIL U 119,950 0.0058% 119,950
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
45 1300000027 GLORIA R. MATEO
FIL U 119,925 0.0058% 119,925
11 BALLATER ST.
BRITTANY NEOPOLITAN SUBD.
BRGY. PASONG PUTIK QUEZON CITY
46 13000129 JOYCELYN ALBAÑO MILLAN
FIL U 115,615 0.0056% 115,615
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
47 1600000001 JOSE LUIS M. PERTIERRA OR CRISTINA N. CANGKE ITF MICHAEL C. PERTIERRA
FIL U 115,000 0.0056% 115,000
114 BAGONG SILANG
CALATAGAN
BATANGAS 4215
48 1300000020 MAPAZON CORPORATION
FIL U 111,600 0.0054% 111,600
1120 J.P. RIZAL STREET,
MAKATI CITY 1200
49 0100000029 MAGDALENO B. ALBARRACIN, JR. AND TRINIDAD M. ALBARRACIN
FIL U 110,000 0.0053% 110,000
PENTHOUSE PHINMA PLAZA,
39 PLAZA, DR. ROCKWELL CENTER,
MAKATI CITY
50 2000000002 GUILLERMO N. TANTUCO AND/OR CLARITA C. TANTUCO
FIL U 107,200 0.0052% 107,200
C/O TANTUCO INDUSTRIAL
DEVELOPMENT CORP.
1120 J.P.RIZAL ST.,MAKATI CITY
Page 4 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
51 16000007 WILFREDO MANGULABNAN PABLO
FIL U 106,110 0.0051% 106,110
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
52 03000018 FLORANTE JIMENEZ CALARA
FIL U 105,145 0.0051% 105,145
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
53 03000396 ERNESSON S. BY:ERNESTO CHUA CHIACO CHUA CHIACO
FIL U 100,000 0.0048% 100,000
223 RECOLETOS ST.
URDANETA VILLAGE, MAKATI CITY 1225
53 18000036 ARSENIO ALIGORA REYES
FIL U 100,000 0.0048% 100,000
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
53 22000068 CHRISTOPHER REGALA VISTRO
FIL U 100,000 0.0048% 100,000
#6 NORTH ROAD,
ST. JUDE LUXURY HOMES,
T. SORA, QC
54 02000038 SAMUEL DIPOL BARRIOS
FIL U 99,780 0.0048% 99,780
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
55 01000094 JOCELYN ALAMBRA ANGELES
FIL U 98,710 0.0048% 98,710
27 MA. ELENA STREET, HAYAVILLE SUBD.,
PROJ. 6, QUEZON CITY
56 01000003 CRISOLOGO ZARATE ABALOS
FIL U 96,360 0.0047% 96,360
NO. 11 ROAD 18, PROJECT 8,
BAHAY TORO, QUEZON CITY
57 1300000013 ROBERTO L. MARCELINO
FIL U 95,000 0.0046% 95,000
C/O MS. FELICIA M. CARVAJAL
MWC ESOWN ADMINISTRATOR
34/F TOWER ONE AYALA TRIANGLE
AYALA AVENUE, MAKATI CITY
58 06000009 MARISSA GUIAO FALLORINA
FIL U 94,125 0.0046% 94,125
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
59 2600000002 ZHANG ZHENZU
CHN U 94,000 0.0046% 94,000
UNIT 706 AYALA TOWER ONE & EXCHANGE PLAZA
AYALA AVE., COR. PASEO DE ROXAS
MAKATI CITY
60 03000431 DANILO A. CHUA AND/OR LEA A. CHUA
FIL U 93,920 0.0046% 93,920
44 MAYON ST., QUEZON CITY
60 03000416 DANILO A. CHUA AND/OR ROSANA R. BALONKITA-CHUA
FIL U 93,920 0.0046% 93,920
44 MAYON ST., STA.MESA HEIGHTS
QUEZON CITY
61 22000012 ARNULFO GATAPIA VALENCIA
FIL U 93,470 0.0045% 93,470
214 MALIGAYA ST., BRGY. SAN
ANTONIO, USPS, SAN PEDRO,
LAGUNA
62 13000060 MA TERESA CRUZ MARCELO
FIL U 92,325 0.0045% 92,325
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
Page 5 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
63 20000045 JOY OCAVA TORRES
FIL U 90,400 0.0044% 90,400
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
64 01000310 CRAIG AWAD
FIL U 90,000 0.0044% 90,000
2135 PASONG TAMO ST.
MAKATI CITY
64 01000312 KENNETH AWAD
FIL U 90,000 0.0044% 90,000
2135 PASONG TAMO ST.
MAKATI CITY
65 16000034 ALMA GALANG PANGILINAN
FIL U 89,925 0.0044% 89,925
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
66 05000004 ANTONIO PAYUMO EDUARDO
FIL U 87,280 0.0042% 87,280
102 SAIGON STREET, GREENPARK VILLAGE,
MANGGAHAN, PASIG CITY 1612
67 07000018 TITO RAFAEL GUILLERMO GAMUROT
FIL U 86,505 0.0042% 86,505
16C 10TH AVENUE., BRGY. SOCORRO,
CUBAO, QUEZON CITY
68 14000026 OFELIA ALDEA NIEVA
FIL U 85,870 0.0042% 85,870
BLK8 LOT14 PHI MONTANA DR., ST. METRO MONTANA VILL
BURGOS MONTALBAN RIZAL
69 19000107 JOSEFINA GANIBE STA. MARIA
FIL U 84,750 0.0041% 84,750
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
70 13000197 MAKATI SUPERMARKET CORPORATION,
FIL U 84,000 0.0041% 84,000
2/F ODC INTERNATIONAL PLAZA
CONDO. #219 SALCEDO ST.,
LEGASPI VILLAGE, MAKATI CITY 1227
71 11000008 MIRIAM O. KATIGBAK
FIL U 80,000 0.0039% 80,000
UNIT 501-A, 3 SALCEDO PLACE, TORDESILLAS ST.,
SALCEDO VILLAGE, MAKATI CITY
71 0300000007 CHIA TZU CHERN
SGN U 80,000 0.0039% 80,000
8 ROSEBURN AVENUE
SINGAPORE 456359
72 03000044 AMANTE BATAD CARDENAS
FIL U 72,815 0.0035% 72,815
MANILA WATER CO., INC
489 KATIPUNAN RD., BALARA, QUEZON CITY
73 04000276 JEAN A. DECENA
FIL U 70,100 0.0034% 70,100
17B CABANATUAN ST.,PHILAMHOMES
QUEZON CITY
74 05000087 EDWARD M. / CYNTHIA C. ESTORNINOS
FIL U 70,000 0.0034% 70,000
479 MA. CRISTINA ST, AYALA ALABANG, MUNTINLUPA
75 0700000027 JOSELITO Y. GUTIERREZ ITF MATTHEW ANTHONY C. GUTIERREZ
FIL U 68,000 0.0033% 68,000
# 12 SAMAR AVE., SOUTH TRIANGLE
QUEZON CITY 1103
Page 6 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
76 07000057 CLAUDIO TOMINES GLORIOSO
FIL U 67,060 0.0032% 67,060
1 BEIZAYUYO ST., AMPARO VILL., CALOOCAN CITY 1425
77 06000036 EVANGELINE BUEN FORONDA
FIL U 66,620 0.0032% 66,620
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
78 18000055 GENEROSO LOGATOC ROBLEDO JR.
FIL U 66,345 0.0032% 66,345
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
79 07000033 ISABELITA NORTE GARCIA
FIL U 65,000 0.0031% 65,000
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
80 05000035 WILFREDO GARCIA ESTRADA
FIL U 61,435 0.0030% 61,435
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
81 21000042 LEE LAI UY
CAN U 61,000 0.0029% 61,000
223 RECOLETOS ST.
URDANETA VILL.,MAKATI CITY 1225
82 03000125 MANUEL RAMOS CRUZ
FIL U 60,390 0.0029% 60,390
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
83 14000047 SHERWIL FARAH NUESA
FIL U 60,000 0.0029% 60,000
306 LIAN ST., AYALA ALABANG
VILLAGE, MUNTINLUPA CITY
84 02000125 ROSAURO PANERGO BABIA
FIL U 59,200 0.0028% 59,200
177 MINDANAO AVENUE,
BAHAY TORO, QUEZON CITY
85 0100000011 HAZEL P. ALMODIEL
FIL U 56,120 0.0027% 56,120
15 ROAD 23. PROJ 8, BRGY. BAHAY TORO,
QUEZON CITY 1106
86 0200000013 RENE B. BLANCAVER
FIL U 55,500 0.0027% 55,500
CLUSTER 2, OUT-PATIENT DEPT.
ST. ANTHONY COLLEGE HOSPITAL
SAN ROQUE EXT., ROXAS CITY
87 1200000015 LIU SHUYUE
CHN U 54,000 0.0026% 54,000
UNIT 706 AYALA TOWER ONE
AYALA AVENUE COR. PASEO DE ROXAS
MAKATI CITY
88 04000006 EDWIN COLOMA DALLARTE
FIL U 52,640 0.0025% 52,640
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
89 03000019 GRACIANO B. CALAYAN JR.
FIL U 50,000 0.0024% 50,000
18 M. ALMEDA STREET,
PATEROS, METRO MANILA
89 02000188 FILEMON BERBA JR.
FIL U 50,000 0.0024% 50,000
8 GARDENIA DRIVE
BEVERLY HILLS, ANTIPOLO CITY
Page 7 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
89 03000225 PETER CHUA
FIL U 50,000 0.0024% 50,000
#32 REAL ST., URDANETA
VILLAGE, MAKATI CITY 1225
89 03000223 JENNIFER CHING
FIL U 50,000 0.0024% 50,000
140-A J. ARELLANO ST., SAN
JUAN, METRO MANILA
89 08000023 VIRGINIA M. HERNANDEZ
FIL U 50,000 0.0024% 50,000
B15 L1 GOODWILL HOMES 1 SAN
BARTOLOME, NOVALICHES, QC
89 14000046 DOMINIC CARLO NUESA
FIL U 50,000 0.0024% 50,000
306 LIAN ST., AYALA ALABANG
VILLAGE, MUNTINLUPA CITY
89 15000029 WILLY L. ONG
FIL U 50,000 0.0024% 50,000
292 D. TUAZON ST., QUEZON CITY
89 19000178 ROMEO R. SY
FIL U 50,000 0.0024% 50,000
1898 PROVINCIAL ROAD, BRGY
DITA, STA ROSA LAGUNA
89 19000179 MARGARITA SAN JUAN
FIL U 50,000 0.0024% 50,000
15 FIRST ST., ST. IGNATIUS
VILLAGE, QC
89 19000183 CLARA SY
FIL U 50,000 0.0024% 50,000
25 8TH ST., NEW MANILA,
QUEZON CITY
89 19000249 GLICERIO SICAT
FIL U 50,000 0.0024% 50,000
3089 PAGATPAT COR. APPLE STREETS
UNITED HILLS VILLAGE
PARANAQUE CITY 1713
89 1200000022 ALEXANDER CHUA LEE
FIL U 50,000 0.0024% 50,000
863 TETUAN ST., STA. CRUZ
1003 MANILA
89 0500000010 ORLANDO LAGUA ESPAÑOLA AND/OR AMAPOLA JINANG ESPAÑOLA
FIL U 50,000 0.0024% 50,000
8774C SAMPALOC STREET, SAN ANTONIO VILLAGE,
MAKATI CITY
89 0400000020 VICTOR J. DEL ROSARIO OR MA. RITA S. DEL ROSARIO
FIL U 50,000 0.0024% 50,000
12F PHINMA PLAZA,
39 PLAZA DR.,
ROCKWELL CENTER, MAKATI CITY
89 02000123 EMMANUEL BARCELON
FIL U 50,000 0.0024% 50,000
#126 BEETHOVEN ST., SANTAROSA
ESTATES , STA. ROSA LAGUNA
89 02000139 CARLOS BANIQUED
FIL U 50,000 0.0024% 50,000
SUITE 803, JOLLIBEE CENTER, SAN MIGUEL AVENUE,
PASIG CITY
90 0700000020 MARTINA MARIA ELIZABETH Y. GUTIERREZ AND/OR CRISPIN RAFAEL Y. GUTIERREZ
FIL U 46,000 0.0022% 46,000
12 SAMAR AVENUE
SOUTH TRIANGLE, QUEZON CITY
Page 8 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
91 07000199 DALE BRIAN GO
FIL U 45,000 0.0022% 45,000
8 COL. VER STREET,
LITTLE BAGUIO,
SAN JUAN CITY 1500
92 1300000017 JHOANNA BANARES MENDOZA
FIL U 42,400 0.0020% 42,400
9 BONN AVENUE
CAPITOL HOMES, DILIMAN
QUEZON CITY
93 06000130 JENNY FRANCISCO
FIL U 42,070 0.0020% 42,070
BLOCK 1 LOT 23 METROGATE,
DASMARINAS, CAVITE
94 04000206 MARIA ESPERANZA DE CASTRO
FIL U 41,320 0.0020% 41,320
B1 L18 URBAN BLISS BARANGKA,
MARIKINA CITY 1803
95 03000412 BUN TENG CHING
FIL U 40,000 0.0019% 40,000
389 QUIRINO HI-WAY, NOVALICHES
QUEZON CITY
95 03000306 CESAR B. CRISOL AND/OR SUSANA S
FIL U 40,000 0.0019% 40,000
23-C MARIPOSA ST., CUBAO, QC
95 18000008 FREDRICH MARINAS RAMIREZ
FIL U 40,000 0.0019% 40,000
ESTRELLA SUBD., ZONE 6,
RIZAL, NUEVA ECIJA
95 02000055 MAIDY LYNNE ESTUDILLO BAUTISTA
FIL U 40,000 0.0019% 40,000
C/O MANILA WATER COMPANY,
INC., #489 KATIPUNAN RD,
BALARA, QC
1105
95 0100000025 EDUARD ABANDO AGBAY
FIL U 40,000 0.0019% 40,000
BLOCK 15 LOT 47 PHASE C-1, FRANCISCO HOMES,
CSJDM, BULACAN 3023
95 2200000007 ROBERTO VIZCARRA VASQUEZ, JR.
FIL U 40,000 0.0019% 40,000
B28 L37 NEW CAPITOL ESTATES
QUEZON CITY
95 20000187 MARK ANTHONY S. TUAZON
FIL U 40,000 0.0019% 40,000
#77 SUMULONG COR. GEN. LUNA STREETS,
BRGY. SAN ROQUE, ANTIPOLO
RIZAL
96 17000035 MAIDY LYNNE QUINTO
FIL U 38,000 0.0018% 38,000
10 KENT FILINVEST EAST,
ANTIPOLO CITY
97 0200000003 ELENA R. BALONKITA
FIL U 35,000 0.0017% 35,000
44 MAYON ST., QUEZON CITY
98 16000215 LIZA V. POLLOSO
FIL U 31,765 0.0015% 31,765
BLK 11 LOT 10 DAHLIA ROAD
ALMAS SUBD.,NOVALICHES
CAMARIN, CALOOCAN CITY
99 03000345 RICHARD CHONG BIAN
FIL U 30,000 0.0014% 30,000
2 FAROL ST., URDANITA
VILLAGE, MAKATI 1225
Page 9 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10

BPI STOCK TRANSFER OFFICE
MANILA WATER COMPANY
TOP 100 STOCKHOLDERS
AS OF MARCH 31, 2013
RANK STOCKHOLDER NUMBER STOCKHOLDER NAME NATIONALITY CERTIFICATE CLASS OUTSTANDING SHARES PERCENTAGE TOTAL
99 09000037 RICARDO D. INTERIOR JR.
FIL U 30,000 0.0014% 30,000
NO. 10 MT. WILLIAMSON ST,
FILINVEST I, BATASAN HILLS,
QUEZON CITY
99 0100000007 JAMES A. ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
99 2500000003 MA. KATRINA M. YATCO
FIL U 30,000 0.0014% 30,000
210 SAN RAFAEL STREET
AYALA ALABANG, MUNTINLUPA
99 01000314 NITA M. ARCILLAS
FIL U 30,000 0.0014% 30,000
340 DON ALFREDO ST.
PAGUIRAN, FLORIDABLANCA
PAMPANGA
99 01000248 EVANGELINE ALTRES
FIL U 30,000 0.0014% 30,000
KM 7, PUROK I-B, BARANGAY
BONIFACIO, SURIGAO CITY
8400
99 01000179 ANTONIO NOEL I. ALDEGUER
FIL U 30,000 0.0014% 30,000
# 645 LEE ST., MANDALUYONG
CITY
99 01000194 LILY ANG
FIL U 30,000 0.0014% 30,000
RM. 204 GRACE BUILDING,
ORTIGAS AVE., SAN JUAN, METRO
MANILA, 1500
99 0100000006 ELOISE A ALBA
FIL U 30,000 0.0014% 30,000
367 FORDHAM ST.,
WACK WACK VILLAGE
MANDALUYONG CITY
100 15000099 O. LEDESMA & CO.INC.
FIL U 29,000 0.0014% 29,000
RM.203 LEDESMA BLDG.
GEN. LUNA ST., INTRAMUROS
MANILA
GRAND TOTAL 2,037,447,052
Page 10 of 10