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	Others A TERMS OF REFERENCE NOMCOM B TERMS OF REFERENCE REMUNERATION C TERMS OF REFERENCE AUDIT Corporate Social Responsibility Directors Executive Officers Group structure II Amended Articles of Inc II Amended By Laws
	2021 PSEDISCLFORM 17 18 OTHER SEC FORMS REPORTS REQUIREMENTS
	2020 PSEDISCLFORM 17 18 OTHER SEC FORMS REPORTS REQUIREMENTS CMIC FORM 2 REPLY TO INQUIRY PSEDISCLFORM 1710 REPORT ON NUM OF SHAREHOLDERS 31JAN2020 PSEDISCLFORM 1713 FOREIGN OWNERSHIP REPORT 31JAN2020 PSEDISCLFORM 1710 REPORT ON NUM OF SHAREHOLDERS 29FEB2020 PSEDISCLFORM 1713 FOREIGN OWNERSHIP REPORT 29FEB2020 PSEDISCLFORM 48 CHANGE IN DIRECTORS OR OFFICERS 11MAR2020 PSEDISCLFORM 430 MATERIAL INFORMATION TRANSACTIONS 11MAR2020 PSEDISCLFORM 71 NOTICE OF ANNUAL OR SPEC SH MEETING 11MAR2020 ION 03242020 Material Information Transactions ION 04142020 List of Top 100 Stockholders ION 04142020 Request for Extension to File SEC Form 17 A ION 04142020 Request for Extension to File SEC Form 17 Q ION 04152020 Public Ownership Report ION 04292020 Amended Notice of Annual or Special Stockholders Meeting ION 04292020 Postponement of Annual Stockholders Meeting EMS Notice of Postponement COLOR IONICS Notice of Postponement COLOR PSEDISC ION 430 Material Information Transactions 29May2020 PSEDISC ION 1710 Report Number of Shareholders 30APR2020 PSEDISC ION 1713 Foreign Ownership Report 30APR2020 ds0016940 2020ION 1713 Foreign Ownership Report 31May2020 ds0016943 2020ION 1710 Report Number of Shareholders 31May2020 ds0016971 2020ION 176 Initial Statement of Beneficial Ownership Bair Norhata Macatbar Alonto PSEdisc ION Preliminary Information Statement 19June2020 ds0020590 2020ION 1713 Foreign Ownership Report 30June2020 ds0020591 2020ION 1710 Report on Number of Shareholders 30June2020 PSEDisc Amended2 Notice Annual Special Stockholders Meeting 02July2020 PSEDisc Material InformationTransactions 02July2020 Ionics EMS Inc Notice of Postponement 06July2020 FINAL Ionics Inc Notice of Postponement 06July2020 IonicsInc and Subsidiaries SEC Form 17Q Mar312020 PSEDISCLFORM 17 12 LIST TOP100 STOCKHOLDERS 30JUNE2020 PSEDISCLFORM POR1 PUBLIC OWNERSHIP REPORT 30JUNE2020 IonicsInc Amended Manual on Corporate Governance 09July2020 ION Definitive Information Statement PSE Disclosure 24July2020 PSE Disclosure Form 17 11 List of Stockholders PSEDisclosure Form 17 10 Report on Number of Shareholders PSEDisclosure Form 17 13 Foreign Ownership Report PSEDISCLFOR 4 8 CHANGE IN DIRECTORS AND OR OFFICERS 12AUG2020 Ionics Inc and Subsidiaries SEC17Q Report 30June2020 ION ASM Minutes 2020 Final Draft PSEDISCLFORM 424 RESULTS ANNUAL SPEC STOCKHOLDERS MEETING PSEDISCLFORM 425 RESULTS OF ORGANIZATIONAL MEETING PSEDISCLFORM 176 INITIAL STATEMENT BENEFICIAL OWNERSHIP SECURITIES PSEDISCLFORM 1712 LIST TOP100 STOCKHOLDERS 30SEPT2020 PSEDISCLFORM 17 10 REPORT ON NO OF SHAREHOLDERS 31AUG2020 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP REPORT 31AUG2020 PSEDISCLFORM 4 8 CHANGE IN DIRECTORS AND OFFICERS 11SEP2020 PSEDISCLFORM 17 10 REPORT ON NUM OF SHAREHOLDERS 30SEP2020 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP REPORT 30SEP2020 PSEDISCLFORM POR 1 PUBLIC OWNERSHIP REPORT OF 30SEP2020 PSEDISCLFORM 17 10 REPORT ON NUM OF SHAREHOLDERS 31OCT2020 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP REPORT 31OCT2020 PSEDISCLFORM 4 8 CHANGE DIRECTORS AND OFFICERS 11NOV2020 PSEDISCLFORM 4 30 MATERIAL INFORMATION TRANSACTIONS 11NOV2020 PSEDISCLFORM 176 INITIAL STATEMENT BENEFICIAL OWNERSHIP SECURITIES MEDEL T NERA PSEDISCLFORM 17 10 REPORT ON NUM OF SHAREHOLDERS 30NOV2020 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP REPORT 30NOV2020 Ionics Inc and Subs SEC 17Q Report 30Sep2020 PSEDISCLFORM 17 10 REPORT ON NUMBER OF SHAREHOLDERS 31DEC2020 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP REPORT 31DEC2020 IONICS TOP 100 BENEF OWNERS 31DEC2020 PSEDISCLFORM POR1 PUBLIC OWNERSHIP REPORT OF 31DEC2020
	2019 PSEDisclForm 1710 Report on Number of Sharesholders 31Jan2019 PSEDisclForm 1713 Foreign Ownership Report 31Jan2019 Letter PSE 02Apr2019 attendance CorpGov Seminar Mr deBorja PSEDiscl Form 71 Notice of Annual Spec SH Mtg PSEDiscl Form 1710 Report Number of Sharesholders 28FEB2019 PSEDiscl Form 1710 Report Number of Shareholders 31Mar2019 PSEDISCL FORM 1712 LIST OF TOP 100 SH AS OF 31MAR2019 PSEDiscl Form 1713 Foreign Ownership Report Mar312019 PSEDiscl Form 1713 Foreign Ownership Report 28Feb2019 PSEDISCLFORM 17 5 INFORMATION STATEMENT PSEDisclForm POR1 Public Ownership Report 31Mar2019 PSEDisclForm 1710 Report on Num of Shareholders 30Apr2019 PSEDisclForm 1713 Foreign Ownership Report Apr302019 SEC FORM 20 IS DEFINITIVE INFOSTAT OF IONICS INC Ionics Inc and Subs Q1 SEC 17Q Report 31Mar2019 PSE DISCLOSURE FORM 17 11 LIST OF STOCKHOLDERS SEC Form I ACGR FOR UPLOADING AMENDED PSEDISCLFORM 424 RESULTS ANNUAL SPECIAL STOCKHOLDERS MEETING AMENDED PSEDISCLFORM 425 RESULTS OF ORGANIZATIONAL MEETING PSEDisclForm 424 Results Annual or Special Stockholders Meeting PSEDisclForm 425 Results of Organizational Meeting PSEDisclForm 1710 Report on Number of Shareholders 31May2019 PSEDisclForm 1713 Foreign Ownership Report 31May2019 Draft Minutes Annual Shareholders Meeting Ionics Inc 21June2019 PSEDisclForm 1710 Report on Number of Shareholders 30June2019 PSEDisclForm 1713 Foreign Ownership Report 30June2019 PSEDISCLFORM 1712 LIST OF TOP100 SH 30JUNE2019 PSEDisclForm POR1 Public Ownership Report 30June2019 PSEDisclForm 1710 Report on Number Shareholders 31July2019 PSEDisclForm 1713 Foreign Ownership Report 31July2019 Letter SEC 09Aug2019 reCertificates of Atty DeLima and Ms Cabal Ltr SEC 15Aug2019 recertif of attendance of Diana P Aguilar PSEDisclForm 430 Material Information Transactions Bd 07Aug2019 Ltr to SEC dated 30Aug2019 recertif of attendance of GDLuchangco PSEDisclForm 1710 Report on Number of Shareholders 31Aug2019 PSEDisclForm 1713 Foreign Ownership Report 31Aug2019 PSEDISCLFORM 46 CHANGE IN CORPORATE CONTACT DETAILS AND WEBSITE PSEDisclForm 1710 Report on Number of Shareholders 30Sept2019 PSEDisclForm 1713 Foreign Ownership Report 30Sept2019 PSEDisclForm 4 30 Material Information Transactions PSEDISCLFORM 1712 LIST TOP 100 SH AS OF 30SEPT2019 PSEDisclForm POR1 Public Ownership Report 30Sep2019 Letter AttyJustinaCallangan SEC30Oct2019 CorpGovCertificates9 PSEDISCLFORM 4 8 CHANGE IN DIRECTORS AND OR OFFICERS PSEDISCLFORM 4 30 MATERIAL INFORMATION TRANSACTIONS PSEDisclForm 17 10 Report Number of Shareholders 31Oct2019 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP REPORT 31OCT2019 PSEDISCLFORM 4 8 CHANGE IN DIRECTORS AND OR OFFICERS PSEDISCLFORM 4 30 MATERIAL INFORMATION TRANSACTIONS Ionics Inc and Subs Q3 SEC 17Q Report 30Sep2019 PSEDisclForm 48 Change Directors and Officers 11Nov2019 PSEDISCLFORM 176 INITIAL STATEMENT BENEFICIAL OWNERSHIP SECURITIES BAREPOYO PSEDISCLFORM 1712 LIST TOP100 SH AS OF 31DEC2019 PSEDisclForm POR1 Public Ownership Report 31Dec2019 PSEDisclForm 1710 Report Number Shareholders 31DEC2019 Ionics Inc and Subs Q2 SEC 17Q Report 30Jun2019 Ionics Inc and Subsidiaries SEC Form 17A 31Dec2019 SEC FORM I ACGR FOR FISCAL YEAR ENDED DEC312019
	2018 PSEDISCLFORM 1710 REPORT NUMBER SHAREHOLDERS 31JAN2018 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 31JAN2018 PSEDISCLFORM 1710 REPORT ON NUM OF SHAREHOLDERS 28FEB2018 PSEDISCLFORM 1713 FOREIGN OWNERSHIP 28FEB2018 PSEDISCLFORM 4 30 14MAR2018 PSEDISCLFORM 7 1 14MAR2018 PSEDISCLFORM 17 10 REPORT NUMBER SHAREHOLDERS 31MAR2018 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP REPORT 31MAR2018 PRELIM INFOSTAT FILED ON 06APR2018 PSEDISCLFORM 17 12 LIST TOP100 STOCKHOLDERS 31MAR2018 PSEDISCLFORM POR1 PUBLIC OWNERSHIP 31MAR2018 Ionics Inc and SubsQ1 SEC17Q Report 31Mar2018 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 30APR2018 PSEDISCLFORM 1710 REPORT NUMBER SHAREHOLDERS 30APR2018 PSEDISCLFORM 4 4 AMENDMENTS TO BY LAWS PSEDISCLFORM 71 AMEND1 NOTICEANNUALSPECIALSTOCKHOLDERSMEETING 2018 DEFINITIVE INFOSTAT Ionics Inc Amended Audit Committee Charter Ionics Inc Amended Compensation Committee Charter Ionics Inc Amended Corporate Governance Committee Charter IONICS LIST OF STOCKHOLDERS AS OF RECORDDATE 15MAY2018 AMENDED BY LAWS 06OCT2005 PSEDISCLForm 1718 Other SEC Forms Reports Requirements INTEGRATED CORPORATE GOVERNANCE REPORT PSEDISCLFORM 4 4 AMENDMENTS TO BY LAWS 19JUN2018 PSEDISCLFORM 4 24 RESULTS ANNUAL SPEC SH MTG 19JUN2018 PSEDISCLFORM 4 25 RESULTS OF ORGL MEETING 19JUN2018 PSEDISCLFORM 1710 REPORT ON NUM OF SHAREHOLDERS 31MAY2018 PSEDISCLFORM 1713 FOREIGN OWNERSHIP 31MAY2018 PSEDisclForm 1713 Foreign Ownership Report 30Jun2018 PSEDisclForm 1710 Report on Num of Shareholders 30Jun2018 MINUTES OF THE ANNUAL SH MEETING ON 19JUN2018 PSEDISCLFORM POR1 PUBLIC OWNERSHIP 30JUN2018 PSEDISCLFORM 1712 LIST OF TOP100 STOCKHOLDERS 30JUN2018 PSEDISCLFORM 1710 REPORT ON NUM OF SHAREHOLDERS 31JUL2018 PSEDISCLFORM 1713 FOREIGN OWNERSHIP 31JUL2018 IonicsInc and Subs Q2 SEC 17Q Report 30Jun2018 PSEDISCLFORM 1710 REPORT ON NUM OF SHAREHOLDERS 31AUG2018 PSEDISCLFORM 1713 FOREIGN OWNERSHIP 31AUG2018 PSEDISCLFORM 1710 REPORT NUMBER OF SHAREHOLDERS 30SEP2018 PSEDISCLFORM 1712 LIST TOP100 STOCKHOLDERS 30SEP2018 PSEDISCLFORM 1713 FOREIGN OWNERSHIP 30SEP2018 PSEDISCLFORM POR1 PUBLIC OWNERSHIP 30SEP2018 PSEDISCLFORM 44 AMENDMENTS LAWS APPROVED BY SEC 29OCT2018 PSEDISCLFORM 17 7 RAYMOND QUA PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 31OCT2018 PSEDISCLFORM 1710 REPORT ON NUM OF SHAREHOLDERS 31OCT2018 PSEDISCLFORM 4 30 MATERIAL INFORMATION 09NOV2018 PSEDISCLFORM 4 8 09NOV2018 Ionics Inc and Subs Q3 SEC 17Q Report 30Sep2018 PSEDISCLFORM 17 6 POLA LIA CELINA LAMARCA Letter to Dir Callangan 22Nov2018 Attendance Corp Gov Seminar LtrDir Callangan 04Dec2018 reattendance CorpGov Seminar MsCabal PSEDISCLFORM 1710 REPORT NUMBER OF SHAREHOLDERS 30NOV2018 PSEDISCLFORM 1710 REPORT ON NUMBER OF SHAREHOLDERS 31DEC2018 PSEDISCLFORM 1712 LIST OF TOP100 STOCKHOLDERS 31DEC2018 PSEDISCLFORM 1713 FOREIGN OWNERSHIP 31DEC2018 PSEDISCLFORM POR1 PUBLIC OWNERSHIP REPORT 31DEC2018 2018 SEC Form 17 A Ionics Inc and Subsidiaries IONICS INC 2018 Annual Report
	2017 PSE DISCL FORM ACGR 2 UPDATE ON ACGR 4JAN2017 PSE DISCL FORM 9 1 SHARE BUYBACK 3FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 6FEB2017 PSE DISCL FORM 17 10 REPORT ON NUMBER OF SH 31JAN2017 PSE DISCL FORM 17 13 FOREIGN OWNERSHIP 31JAN2017 PSE DISCL FORM 4 30 MATERIAL INFORMATION PSE DISCL FORM 9 1 SHARE BUYBACK 16FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 24FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 27FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 8FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 9FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 14FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 15FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 28FEB2017 PSE DISCL FORM 9 1 SHARE BUYBACK 1MAR2017 PSE DISCL FORM 9 1 SHARE BUYBACK 2MAR2017 PSE DISCL FORM 9 1 SHARE BUYBACK 3MAR2017 PSE DISCL FORM 9 1 SHARE BUYBACK 6MAR2017 PSE DISCL FORM 17 13 FOREIGN OWNERSHIP 28FEB2017 PSE DISCL FORM 17 10 REPORT ON NUMBER OF SH 28FEB2017 PSEDISCLFORM 4 8 CHANGE DIRECTORS OFFICERS 15MAR2017 PSE DISCL FORM 7 1 NOTICE OF ANNUAL OR SPEC SH MTG PSEDISCL FORM 7 1 NOTICE OF ANNUAL SPEC MEETING 24MAR2017 PSE DISCL FORM 9 1 SHARE BUY BACK 31MAR2017 PSEDISCLFORM CGR1 COMPLIANCE REPORT CORPGOV 31DEC2016 PSE DISCL FORM 91 SHARE BUY BACK 3APR2017 PSEDISL FORM 9 1 SHARE BUYBACK 23MAY2017 PSEDISL FORM 9 1 SHARE BUYBACK 22MAY2017 PSEDISCL FORM 9 1 SHARE BUYBACK 24MAY2017 PSE DISCL BD 10MAY2017 PSEDISCLFORM 17 10 REPORT ON NUMBER OF SH 30APR2017 PSEDISCL FORM 17 13 FOREIGN OWNERSHIP 30APR2017 PSEDISCL FORM 17 11 LIST OF SH 25APR2017 PSEDISL FORM 9 1 SHARE BUYBACK 27APR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 26APR2017 PSEDISL FORM 9 1 SHARE BUYBACK 24APR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 25APR2017 PSEDISCL FORM 17 5 DEFINITIVE INFOSTAT PSEDISCL FORM 9 1 SHARE BUYBACK 17APR2017 PSEDISCL FORM 17 12 LIST OF TOP 100 31MAR2017 PSEDISC FORM POR 1 PUBLIC OWNERSHIP REPORT 31MAR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 12APR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 10APR2017 PSEDISCL FORM 17 13 FOREIGN OWNERSHIP 31MAR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 7APR2017 PSEDISCLFORM 17 10 REPORT ON NUMBER OF SH 31MAR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 6APR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 4APR2017 PSEDISCL FORM 9 1 SHARE BUYBACK 3APR2017 PSEDISLFORM CGR1 COMPLIANCE REPORT ON CORPGOV 31DEC16 PSEDISLFORM 7 1 NOTICE OF ANNUAL SPECMEETING 24MAR2017 PSEDISCL FORM 17 5 INFORMATION STATEMENT PSEDISCL FORM 9 1 SHARE BUYBACK 7MAR2017 PSEDISLFRM 17 6 STATEMENT BENEF OWNERSHIP SECFRM23A PSEDISCL FORM 7 1 NOTICE OF ANNUAL SPEC SH MTG PSEDISCLFORM 4 8 CHANGE DIRECTORS OFFICERS 15MAR2015 PSEDISCL FORM 17 13 FOREIGN OWNERSHIP REPORT PSEDISCLFORM 17 10 REPORT NUM OF SHAREHOLDERS 31MAY2017 PSEDISCL FORM 23 A OF STEPHANIE MAREE N DYSANGCO PSEDISCL FORM 23 A OF ATTY ANNA MELISSA R LICHAYTOO PSE DISL FORM 4 25 30MAY2017 PSE DISL FORM 4 24 30MAY2017 AMENDED MANUAL ON CORPORATE GOVERNANCE MAY2017 ANNEX A ION ASM 2017 ATTENDANCE ANNEX B ION RCBC CERTIFICATION ATTENDANCE 30MAY2017 ION SH 30MAY2017 PSEDISCLFORM 17 18 AMENDED MANUAL CORP GOV 31MAY2017 PSEDISCL FORM 9 1 SHARE BUY BACK 9JUNE2017 PSEDISCL FORM 9 1 SHARE BUYBACK 13JUNE2017 PSEDISCL FORM 9 1 SHARE BUYBACK 14JUNE2017 PSEDISCL FORM 9 1 SHARE BUYBACK 15JUNE2017 PSEDISCL FORM 9 1 SHARE BUYBACK 28JUNE2017 DISCLOSURE IPI STOCK DIVIDEND IONICSINC and SUBSQ1 SEC17Q REPORT 31MAR2017 PSEDISCLFORM 17 10 REPORT ON NUMBER OF SH 30JUNE2017 PSEDISCL FORM 17 13 FOREIGN OWNERSHIP 30JUNE2017 PSEDISCFORM POR1PUBLIC OWNERSHIP REPORT 30JUNE2017 PSEDISCLFORM 17 10 REPORT ON NUM OF SH 31JULY2017 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 31JULY2017 PSEDISCLFORM 4 8 CHANGE IN DIRECTORS OFFICERS SEC FORM 23A LILIA B DE LIMA PSEDISCL FORM 17 13 FOREIGN OWNERSHIP 31AUG2017 PSEDISCL FORM 17 10 REPORT ON NUMBER OF SH 31AUG2017 PSEDISCLFORM 17 10 REPORT ON NUM OF SH 30SEP2017 PSEDISCLFORM 17 12 LIST OF TOP 100 30SEP2017 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 30SEP2017 IONICSINC LETTER ATTY CALLANGAN ISSUECERTOfATTENBYSGV PSEDISCFORM POR1 PUBLIC OWNERSHIP 30SEPT2017 PSEDISCLFORM 4 30 MATERIAL INFORMATION 07NOV2017 PSEDISCLFORM 17 10 REPORT ON NUMBER OF SH 31OCT2017 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 31OCT2017 PSEDISCLFORM 17 18 OTHER SEC FORMS 07NOV2017 IonicsInc and SubsQ2SEC 17Q Report 30Jun2017 IonicsInc and SubsQ3SEC 17Q Report 30Sept2017 PSEDISCLFORM 17 10 REPORT NUMBER OF SH 30NOV17 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 30NOV17 LTRTOSECDTD 13DEC2017 CORPCERT LILIADELIMA MONICAVILLONCO PSEDISCLFORM 1710 REPORT ON NUMBER OF SH 31DEC2017 PSEDISCLFORM 17 13 FOREIGN OWNERSHIP 31DEC2017 PSEDISCFORM POR 1 PUBLIC OWNERSHIP REPORT 31DEC2017 PSEDISCLFORM 17 12 LIST OF TOP 100 31DEC2017 2017 SECForm 17A IonicsInc and Subsidiaries
	2016 ION ACGR FULL JAN 2016 PSEDISCL FORM 17 7 GDL 23 B SOLD TOTAL OF 1MM PSEDISCL FORM 17 13 FOREIGN OWNERSHIP 31JAN2016 PSE DISCL FORM 17 10 31JAN2016 PSE DISCL FORM 17 13 29FEB2016 PSE DISCL FORM 17 10 29FEB2016 PSE DISCL FORM 4 8 15MARCH2016 PSE DISCL FORM 4 30 15MARCH2016 PSE DISCL FORM 7 1 15MARCH2016 PSE DISCL FORM CGR 1 DATED 15MAR2016 PSE DISCL FORM 17 5 INFOSTAT PSE DISCL FORM 17 13 31MARCH2016 PSE DISCL FORM 17 10 31MARCH2016 PSE DISCL FORM 4 31 PRESS RELEASE 5APRIL2016 PSE DISCL FORM 17 5 INFORMATION STATEMENT PSE DISCL FORM 17 11 LIST OF SH Ionics Inc and Subs Q1 SEC 17Q Report 31Mar2016 PSE DISCL FORM 17 13 30APRIL2016 PSE DISCL FORM 17 10 30APRIL2016 ION SH 20MAY2016 Annex B ION RCBC Cert of Attendance 20May Annex A ION ASM 2016 Attendance PSE DISCL FORM 4 30 12MAY2016 PSE DISCL FORM POR 1 31MARCH2016 PSE DISCL FORM 17 12 AS OF 31MARCH2016 Annex B ION RCBC Certification of Attendance 20May Annex A ION ASM 2016 Attendance ION SH 20MAY2016 PSE DISCL FORM 4-32-REPLY TO EXCHANGE27S QUERY PSE DISCL FORM 17 6 CLPASQUIL PSE DISCL FORM 4 24 20MAY2016 PSE DISCL FORM 4 25 20MAY2016 PSE DISCL FORM POR 1 31MARCH2016 AMENDED PSE DISCL FORM 17 13 31MAY2016 PSE DISCL FORM 17 10 31MAY2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 8JUNE2016 ION ACGR FULL JAN2016 updated PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 13JUNE2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 14JUNE2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 16JUNE2016 PSE DISCL FORM 9 1 17JUNE2016 PSEDISCL FORM 17 13 FOREIGN OWNERSHIP 30JUNE2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 21JUNE2016 PSEDISCL FORM 9 1 SHARE BUY BACK TRANSACTION 22JUNE2016 PSEDISCL FORM 9 1 SHARE BUY BACK TRANSACTIONS 23JUNE2016 PSEDISCL FORM 9 1 SHARE BUY BACK TRANSACTIONS 24JUNE2016 PSEDISCL FORM 9 1 SHARE BUY BACK TRANSACTIONS 1JULY2016 PSEDISCL FORM 9 1 SHARE BUY BACK TRANSACTIONS 4JULY2016 PSE DISCL FORM 4 30 15JULY2016 PSE DISCL FORM POR 1 30JUNE2016 PSE DISCL FORM 17 12 AS OF 30JUNE2016 AMENDED PSE DISCL FORM 9 1 17JUNE2016 PSE DISCL FORM 17 10 31JULY2016 PSE DISCL FORM 17 13 FOREIGN OWNERSHIP 31JULY2016 PSE DISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 25AUG2016 Ionics Inc and Subs Q2 SEC 17Q Report 30June2016 PSE DISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 30AUG2016 PSE DISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 31AUG2016 PSE DISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 1SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 6SEPT2016 PSE DISCL FORM 17 10 31AUG2016 PSE DISCL FORM 17 13 31AUG2016 PSEDISCL FORM 4 1 ACQ DISP ASSETS AMENDED 8NOV2016 PSEDISCL FORM 17 10 REPORT NO SHAREHOLDERS 30JUNE2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 8SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 14SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 19SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 20SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 21SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 22SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 28SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 29SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 4OCT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 6OCT2016 PSEDISCL FORM 17 10 30SEPT2016 PSEDISCL FORM 17 13 30SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 7OCT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 10OCT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 12OCT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 11OCT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTIONS 13OCT2016 PSEDISCL FORM POR 1 FOR THE QTR ENDING 30SEPT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 24OCT2016 PSEDISCL FORM 9 1 SHARE BUY BACK TRANSACTION 25OCT2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 26OCT2016 PSEDISCL FORM 9 1 SHARE BUYBACK 28October2016 PSEDISCL FORM 17 10 31OCT2016 PSEDISCL FORM 17 13 31OCT2016 PSEDISCL FORM 4 1 ACQ OR DISP ASSETS AMENDED 8NOV2016 Ionics Inc and Subs Q3 SEC 17Q Report 30Sep2016 PSE DISCL FORM 17 10 30NOV2016 PSEDISCL FORM 9 1 SHARE BUYBACK TRANSACTION 1DEC2016 PSEDISCLFORM 9 1 SHARE BUYBACK TRANSACTION 18NOV2016 PSE DISCL FORM 9 1 21NOV2016 PSE DISCL FORM 9 1 SHARE BUYBACK 22NOV2016 PSE DISCL FORM 9 1 SHARE BUYBACK TRANSACTION 23NOV2016 PSE DISCL FORM 9 1 SHARE BUYBACK TRANSACTION 24NOV2016 PSE DISCL FORM 9 1 SHARE BUYBACK 28November2016 PSE DISCL FORM 9 1 SHARE BUYBACK 29NOV2016 PSE DISCL FORM 9 1 SHARE BUYBACK TRANSACTION 5DEC2016 PSE DISCL FORM 17 13 30NOVEMBER2016 PSE DISCL FORM 17 13 31DEC2016 PSE DISCL FORM 17 10 31DEC2016 PSE DISCL FORM POR 1 31DEC2016 IonicsInc and SubsSEC Form 17 A Report2016 ION ACGR MAY 2016 PSEDISCLFORM 9 1 SHARE BUYBACK TRANSACTIONS 21OCT2016 PSEDISCLFORM 9 1 SHARE BUYBACK TRANSACTION 20JUNE2016 PSEDISCLFORM 9 1 SHARE BUYBACK TRANSACTIONS 27JUNE2016 PSEDISCLFORM 17 12 FOR THE QTR ENDING 30SEPT2016
	2015 SCAN COPY OF THE DEFINITIVE INFOSTAT FOREIGN OWNERSHIP REPORT 30 APRIL 2015 NO OF SHAREHOLDERS AS OF 30 APR 2015 DISCL SEC FORM 23 B OF ALFREDO DE BORJA DISCL SH15 MAY 2015 ANNUAL STOCKHOLDERS 27 MEETING DISCL SEC FORM 23 A OF IBARRA MALONZO IONICS INC DRAFT MINUTES AGM 15MAY15 FOREIGN OWNERSHIP REPORT 31 MAY 2015 PSE DISCL FORM 17 1 IONICS-UPDATED ACGR JUNE 2015 v2 DISCL-SEC FORM 23-A OF TEH LIN YANG AMD AI OF IONICS INC APPROVED BY THE SEC ON 25 JUNE 2015 Report on the Number of Shareholders PSE Disclosure Form 17 10 Foreign Ownership Report PSE DISCL FORM 17 12 TOP 100 STOCKHOLDERS PUBLIC OWNERSHIP 30 JUNE 2015 PSE DISCL FORM 17 10 REPORT ON NUMBER OF SHAREHOLDERS FOREIGN OWNERSHIP REPORT AS OF 31 JULY 2015 PSE DISCL FORM 4 8 CHANGE IN DIR AND OR OFFICERS PSE DISCL FORM 4 2 ACQ DISP SHARES OF ANOTHER CORP IONICS PSE DISCL FORM 4 1 ACQ OR DISP OF ASSETS PSE DISL FORM 4 30 MATERIAL INFORMATION TRANSACTIONS 2 PSE DISCL FORM 13 1 PSE DISCLOSURE FORM 13 1 PSE DISCL FORM 17 13 FOREIGN OWNERSHIP REPORT 31 AUG 2015 PSE DISCL FORM 17 10 REPORT NO OF SHAREHOLDERS AUG 2015 PSE DISCLOSURE FORM 17 7 LAWRENCE C QUA PSE DISCL FORM 17 7 OF LCQUA 810000 PSE DISCL FORM 13 1 ADBORJA 27000 PSE DISCL FORM 13 1 LCQUA 1000000 PSE DISCL FORM 17 7 OF ADB 27000 PSE DISCL FORM 17 7 LCQUA 1000000 PSE DISCL FORM 17 7 OF ABC 52000 PSEDISCL FORM 1710 REPORT NUMBER OF SHAREHOLDERS SEPT PSEDISCL FORM1712 TOP100 AND BENEF OWNERS 30SEPT2015 PSEDISCL FORM 1713 FOREIGN OWNERSHIP OF 30SEPT2015 PSE DISCLOSURE FORM 17 13 31OCTOBER2015 PSE DISCL FORM 17 10 31OCTOBER 2015 FOREIGN OWNERSHIP REPORT AS OF 30NOV2015 PSE DISCL FORM 17 10 30NOV2015 PSEDISCLFORM 13 1 ADB SOLD 647000 SHARES PSE DISCLOSURE FORM POR 1 SEPT302015 PSE DISCL FORM 17 7 ADB SOLD 647000 PSE DISCL FORM 13 1 ADB SOLD 980000 PSE DISCL FORM 17 7 ADB SOLD 980000 PSE DISCL FORM 4 30 18DEC2015 PSE DISCL FORM 4 30 21DEC2015 PSEDISCL FORM 1710 REPORT NO OF SHAREHOLDERS 31DEC2015 PSEDISCL FORM 13 1 GDL SOLD 1 MILLION SHARES PSEDISCL FORM 17 13 FOREIGN OWNERSHIP OF 31DEC2015 PSEDISCL FORM ACGR 2 UPDATE ON ACGR FOR 2015 PSEDISCL FORM POR1 PUBLIC OWNERSHIP REPORT 31DEC2015 PSEDISCL FORM 17 12 FOR QTR ENDING 31DEC2015 Ionics Inc and Subs Q3 SEC 17Q Report 30Sep2015 Ionics Inc and Subs SEC Form17 A Report 2015 Ionics Inc and Subs Q2 SEC 17Q Report 30June2015 Ionics Inc and Subs Q1 SEC 17Q Report 31Mar2015
	2014 17-C (9 MAY 2014) 17-C (16 MAY 2014) 17-C (17 MARCH 2014) 2014 AMENDED GIS OF IONICS INC RECEIVED BY THE SEC SEC FORM 20 IS DEF INFOSTAT Top 20 Stockholders IOMNI Amended AOI No of Directors Principal Address IPI Amended AOI Principal Address SYNERTRONIX Amended AOI Principal Address II Subs SEC FORM 17Q 31 Mar 2014 Q2 II Subs SEC 17Q Report 30 Jun 2014 Q3 II Subs SEC 17Q Report 30 Sep 2014 IONICS Updated ACGR 23 December 2014 2014 FORM 17 A Ionics Inc Subs
	2013 II SEC FORM 17Q 1st Quarter 2013 II SEC FORM 17Q 2nd Quarter 2013 II SEC FORM 17Q 3rd Quarter 2013 II SEC FORM 17A 2013
	2012 Annual Corporate Governance Report 2012 Annual Corporate Governance Report 2012 (Updated)
	2010 SEC 17-Q 1stQ 2010 01 Others Ionote 02 Others Verizon 03 Others Announcement of Stockholders Meeting 04 Others Purchase of Shares in Ionics EMS Inc. 05 Others Purchase of Additional Shares 06-01-10 06 Others Purchase of Additional Shares 06-02-10 07 Others Purchase of Additional Shares 06-03-10 08 Others Purchase of Additional Shares 06-04-10 09 Others Purchase of Additional Shares 06-07-10 10 Others Purchase of Additional Shares 06-08-10 11 Others Purchase of Additional Shares 06-10-10 12 Others Purchase of Additional Shares 06-11-10 13 Others Update on Voluntary Delisting of Ionics EMS, Inc 14 Others Purchase of Additional Shares 06-18-10 15 Others Purchase of Additional Shares 06-22-10
	2009 SEC 17-A 2009 SEC 17-Q 3rd Qtr 2009 SEC 17-Q 2nd Qtr 2009 SEC 17-Q 1st Qtr 2009 SEC 23-B (LCQ) SEC 23-B (LSR) Others - IPI Shares Others - Stock Transfer Agent Others - April 2009 Number of Stockholders Others - EMS Equity Restructuring Others - EMS Agreement to Note AB Others - Sale of Investment Others - Date of Stockholders Meeting Others - Iomni Announcement Others - EMS Announcement Others - Directors of the Corp 2009 Others - May 2009 Number of Stockholders Others - June 2009 Number of Stockholders Others - Top 100 Stockholders - June 2009
	2008 SEC 17-A 2008 with AFS SEC 17-C Reports Jan 24 2008 SEC 17-C Reports Jan 30 2008 SEC 17-C Reports Mar 05 2008 SEC 17-C Reports Mar 31 2008 SEC 17-C Reports Apr 03 2008 SEC 17-C Reports Apr 04 2008 SEC 17-C Reports May 16 2008 SEC 17-C Reports Nov 13 2008 SEC 17-C Reports Nov 13 2008 (IOMNI) SEC 17-Q 1st Qtr 2008 SEC 17-Q 2nd Qtr 2008 SEC 17-Q 3rd Qtr 2008 Others - Attendance on Corp Governance Seminar Jan 2008 Others - CG Scorecard Jan 2008 Others - Filing of Amended Articles of Incorporation Dec 2008 Others - Website Redesigned and Upgraded Mar 05 2008
	2007 SEC 17-A 2007 SEC 17-C Reports Mar 30 2007 SEC 17-C Reports Apr 12 2007 SEC 17-C Reports May 11 2007 SEC 17-C Reports Jun 19 2007 SEC 17-C Reports Aug 10 2007 SEC 17-C Reports Aug 14 2007 SEC 17-C Reports Sep 05 2007 SEC 17-C Reports Sep 24 2007 SEC 17-C Reports Sep 26 2007 SEC 17-C Reports Sep 26 2007 (IOMNI) SEC 17-C Reports Oct 11 2007 SEC 17-C Reports Nov 12 2007 SEC 17-Q 1st Qtr 2007 SEC 17-Q 2nd Qtr 2007 SEC 17-Q 3rd Qtr 2007
	2006 SEC 17-A 2006 SEC 17-C Reports Mar 30 2006 SEC 17-C Reports Jun 02 2006 SEC 17-C Reports Aug 11 2006 SEC 17-C Reports Nov 13 2006 SEC 17-C Reports Dec 21 2006 SEC 17-Q 1st Qtr 2006 SEC 17-Q 2nd Qtr 2006 SEC 17-Q 3rd Qtr 2006

For more information and queries:
Judy Qua
VP-Corporate Affairs
judy.qua@ionics-ems.com

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