Cookie Consent by FreePrivacyPolicy.com
Datalog Logo
Free data on 57M+ companies
Home > England & Wales Companies > THE HEARING COMPANY LIMITED
Company Information for

THE HEARING COMPANY LIMITED

SCRIVENS HOUSE, 60 ISLINGTON ROW MIDDLEWAY, EDGBASTON, BIRMINGHAM, B15 1PH,
Company Registration Number
01228289
Private Limited Company
Active

Company Overview

About The Hearing Company Ltd
THE HEARING COMPANY LIMITED was founded on 1975-10-01 and has its registered office in Birmingham. The organisation's status is listed as "Active". The Hearing Company Limited is a Private Limited Company registered in with Companies House and the accounts submission requirement is categorised as DORMANT
  • Company is not active ie not engaged in any business activity or receiving income or profits
  • Is not incurring costs other than: Annual return fee, late filing fees, companies house admin fees eg company name change or share payments
  • Holds no assets capable of producing any profits or income
  • Holds assets that are unlikely to produce profits and income in the near future
  • Investment trusts, pensions and client account companies may show as dormant companies as they are non trading
Key Data
Company Name
THE HEARING COMPANY LIMITED
 
Legal Registered Office
SCRIVENS HOUSE
60 ISLINGTON ROW MIDDLEWAY
EDGBASTON
BIRMINGHAM
B15 1PH
Other companies in B15
 
Previous Names
SCRIVENS (CENTRAL) LIMITED22/03/2006
Filing Information
Company Number 01228289
Company ID Number 01228289
Date formed 1975-10-01
Country 
Origin Country United Kingdom
Type Private Limited Company
CompanyStatus Active
Lastest accounts 29/10/2023
Account next due 31/07/2025
Latest return 31/08/2015
Return next due 28/09/2016
Type of accounts DORMANT
Last Datalog update: 2024-09-09 02:48:07
Primary Source:Companies House
There are multiple companies registered at this address, the registered address may be the accountant's offices for THE HEARING COMPANY LIMITED
Is this data useful to you?
If you found the data here useful, PLEASE HELP US. We are a start-up and believe in making information freely available. Please DONATE to help.
Alternatively by linking to us, posting on twitter, facebook and linkedin about us and generally spreading the word, you'll help us to grow. Our vision is to provide high quality data about the activities of all the companies in the world and where possible make it free to use and view. Finding and integrating data from thousands of data sources is time consuming and needs lots of effort. By simply spreading the word about us, you will help us.
Companies with same name THE HEARING COMPANY LIMITED
The following companies were found which have the same name as THE HEARING COMPANY LIMITED. These may be the same company in different jurisdictions
  Registered addressLast known statusFormation date
THE HEARING COMPANY PTY LTD Active Company formed on the 2013-07-05
THE HEARING COMPANY, INC. 12717 W. Sunrise Blvd. Sunrise FL 33323 Inactive Company formed on the 2005-02-14
THE HEARING COMPANY OF GEORGIA INC Georgia Unknown
THE HEARING COMPANY INC Georgia Unknown

Company Officers of THE HEARING COMPANY LIMITED

Current Directors
Officer Role Date Appointed
NICHOLAS JAMES GEORGEVIC
 Company Secretary 1997-05-12
MARK ANDREW GEORGEVIC
 Director 1993-11-01
NICHOLAS JAMES GEORGEVIC
 Director 1991-08-09
Previous Officers
Officer Role Date Appointed Date Resigned
PATRICK JAMES BULGER
 Director 1998-11-02 2012-10-01
AMANDA MICHELLE GEORGEVIC
 Director 1997-05-12 2012-10-01
DOROTHY GEORGEVIC
 Director 1991-08-31 2012-10-01
KAREN REGINA ROSE GEORGEVIC
 Director 1997-05-12 2012-10-01
ALEXANDER GEORGEVIC
 Director 1991-08-31 2003-09-29
ANTHONY WILLIAM HEWITT
 Director 1991-08-31 2001-03-12
VALENTINE DEVORA SCRIVEN
 Director 1991-08-31 1999-05-01
VALENTINE DEVORA SCRIVEN
 Company Secretary 1991-08-31 1997-05-12
ALAN RAYMOND RUDGE
 Director 1991-08-31 1995-04-26

Related Directorships

Officer Related Company Role Date Appointed Role StatusIncorporation dateCompany Status
NICHOLAS JAMES GEORGEVIC RONALD BROWN (OPTICS) LIMITED Company Secretary 2006-09-28 CURRENT 1989-02-23 Dissolved 2016-11-15
NICHOLAS JAMES GEORGEVIC RONALD BROWN GROUP LIMITED Company Secretary 2006-09-28 CURRENT 1989-03-06 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC R3 2009 LIMITED Company Secretary 2003-05-30 CURRENT 1912-09-06 Dissolved 2016-09-29
NICHOLAS JAMES GEORGEVIC SEAMAP LIMITED Company Secretary 2001-12-03 CURRENT 2001-07-20 Active
NICHOLAS JAMES GEORGEVIC ALERTBIND LIMITED Company Secretary 1998-08-26 CURRENT 1998-08-19 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC MERSONA LIMITED Company Secretary 1997-05-12 CURRENT 1968-05-30 Active
NICHOLAS JAMES GEORGEVIC SCRIVENS LIMITED Company Secretary 1997-05-12 CURRENT 1942-12-02 Active
MARK ANDREW GEORGEVIC BRADLEYS OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active
MARK ANDREW GEORGEVIC GREENSLADES OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC OWL OPTICAL LIMITED Director 2015-06-30 CURRENT 1969-01-20 Active
MARK ANDREW GEORGEVIC VARNALS OPTICIANS LIMITED Director 2015-06-30 CURRENT 1954-09-27 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC GORE & HEPWORTH OPTICIANS LIMITED Director 2015-06-30 CURRENT 1977-08-18 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC S. D. H. OPTICIANS (SHIRLEY) LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC HOWES OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active
MARK ANDREW GEORGEVIC MAXWELL KAY OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC S. D. H. OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC SCRIVENS RETIREMENT BENEFIT SCHEME 2010 LTD Director 2010-03-25 CURRENT 2010-03-05 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC SATHC PRODUCTS LIMITED Director 2008-07-10 CURRENT 2008-07-10 Active
MARK ANDREW GEORGEVIC RONALD BROWN (OPTICS) LIMITED Director 2006-09-28 CURRENT 1989-02-23 Dissolved 2016-11-15
MARK ANDREW GEORGEVIC RONALD BROWN GROUP LIMITED Director 2006-09-28 CURRENT 1989-03-06 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC SEAMAP LIMITED Director 2001-12-03 CURRENT 2001-07-20 Active
MARK ANDREW GEORGEVIC ALERTBIND LIMITED Director 1998-08-26 CURRENT 1998-08-19 Active - Proposal to Strike off
MARK ANDREW GEORGEVIC MERSONA LIMITED Director 1993-11-01 CURRENT 1968-05-30 Active
MARK ANDREW GEORGEVIC SCRIVENS LIMITED Director 1993-11-01 CURRENT 1942-12-02 Active
NICHOLAS JAMES GEORGEVIC BRADLEYS OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active
NICHOLAS JAMES GEORGEVIC GREENSLADES OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC OWL OPTICAL LIMITED Director 2015-06-30 CURRENT 1969-01-20 Active
NICHOLAS JAMES GEORGEVIC VARNALS OPTICIANS LIMITED Director 2015-06-30 CURRENT 1954-09-27 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC GORE & HEPWORTH OPTICIANS LIMITED Director 2015-06-30 CURRENT 1977-08-18 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC S. D. H. OPTICIANS (SHIRLEY) LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC HOWES OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active
NICHOLAS JAMES GEORGEVIC MAXWELL KAY OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC S. D. H. OPTICIANS LIMITED Director 2015-06-30 CURRENT 1996-12-12 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC SCRIVENS RETIREMENT BENEFIT SCHEME 2010 LTD Director 2010-03-25 CURRENT 2010-03-05 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC SCRIVENS RBS TRUSTEE LIMITED Director 2010-03-17 CURRENT 2010-03-17 Active
NICHOLAS JAMES GEORGEVIC SATHC PRODUCTS LIMITED Director 2008-07-10 CURRENT 2008-07-10 Active
NICHOLAS JAMES GEORGEVIC RONALD BROWN (OPTICS) LIMITED Director 2006-09-28 CURRENT 1989-02-23 Dissolved 2016-11-15
NICHOLAS JAMES GEORGEVIC RONALD BROWN GROUP LIMITED Director 2006-09-28 CURRENT 1989-03-06 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC SEAMAP LIMITED Director 2001-12-03 CURRENT 2001-07-20 Active
NICHOLAS JAMES GEORGEVIC ALERTBIND LIMITED Director 1998-08-26 CURRENT 1998-08-19 Active - Proposal to Strike off
NICHOLAS JAMES GEORGEVIC SCRIVENS LIMITED Director 1992-08-31 CURRENT 1942-12-02 Active
NICHOLAS JAMES GEORGEVIC MERSONA LIMITED Director 1991-08-09 CURRENT 1968-05-30 Active

More director information

Corporation Filing History
Companies House Filing History
This is a record of the public documents (corporate filing) lodged from Companies House where the company has filed annual returns and other statutory filing documents. Examples of documents filed include: change of registered office, accounts filing, director/officer appointments & resignations, changes in share capital, shareholder members lists etc.

DateDocument TypeDocument Description
2024-09-02CONFIRMATION STATEMENT MADE ON 31/08/24, WITH UPDATES
2024-07-29ACCOUNTS FOR DORMANT COMPANY MADE UP TO 29/10/23
2024-06-24CESSATION OF ALERTBIND LTD AS A PERSON OF SIGNIFICANT CONTROL
2024-06-24Notification of Seamap Limited as a person with significant control on 2024-06-24
2023-09-08CONFIRMATION STATEMENT MADE ON 31/08/23, WITH NO UPDATES
2023-07-13ACCOUNTS FOR DORMANT COMPANY MADE UP TO 30/10/22
2022-09-02CONFIRMATION STATEMENT MADE ON 31/08/22, WITH NO UPDATES
2022-09-02CS01CONFIRMATION STATEMENT MADE ON 31/08/22, WITH NO UPDATES
2022-07-25ACCOUNTS FOR DORMANT COMPANY MADE UP TO 31/10/21
2022-07-25AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 31/10/21
2021-09-09CS01CONFIRMATION STATEMENT MADE ON 31/08/21, WITH NO UPDATES
2021-06-03AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 25/10/20
2020-09-08CS01CONFIRMATION STATEMENT MADE ON 31/08/20, WITH NO UPDATES
2020-08-13AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 27/10/19
2019-09-05CS01CONFIRMATION STATEMENT MADE ON 31/08/19, WITH NO UPDATES
2019-07-02AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 28/10/18
2018-08-31CS01CONFIRMATION STATEMENT MADE ON 31/08/18, WITH NO UPDATES
2018-07-19AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 29/10/17
2017-09-12CS01CONFIRMATION STATEMENT MADE ON 31/08/17, WITH NO UPDATES
2017-09-11PSC07CESSATION OF NICHOLAS JAMES GEORGEVIC AS A PSC
2017-09-11PSC07CESSATION OF MARK ANDREW GEORGEVIC AS A PSC
2017-07-18AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 30/10/16
2016-09-07LATEST SOC07/09/16 STATEMENT OF CAPITAL;GBP 72
2016-09-07CS01CONFIRMATION STATEMENT MADE ON 31/08/16, WITH UPDATES
2016-07-15AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 31/10/15
2015-09-01LATEST SOC01/09/15 STATEMENT OF CAPITAL;GBP 72
2015-09-01AR0131/08/15 ANNUAL RETURN FULL LIST
2015-06-17AAACCOUNTS FOR DORMANT COMPANY MADE UP TO 26/10/14
2014-09-01LATEST SOC01/09/14 STATEMENT OF CAPITAL;GBP 72
2014-09-01AR0131/08/14 ANNUAL RETURN FULL LIST
2014-07-30AAFULL ACCOUNTS MADE UP TO 27/10/13
2013-09-02AR0131/08/13 ANNUAL RETURN FULL LIST
2013-07-02AAFULL ACCOUNTS MADE UP TO 28/10/12
2012-10-08TM01APPOINTMENT TERMINATED, DIRECTOR DOROTHY GEORGEVIC
2012-10-08TM01APPOINTMENT TERMINATED, DIRECTOR KAREN GEORGEVIC
2012-10-08TM01APPOINTMENT TERMINATED, DIRECTOR AMANDA GEORGEVIC
2012-10-08TM01APPOINTMENT TERMINATED, DIRECTOR PATRICK BULGER
2012-09-07AR0131/08/12 ANNUAL RETURN FULL LIST
2012-07-26AAFULL ACCOUNTS MADE UP TO 30/10/11
2011-09-02AR0131/08/11 ANNUAL RETURN FULL LIST
2011-09-02AD01REGISTERED OFFICE CHANGED ON 02/09/11 FROM Scrivens House Po Box 15666 Birmingham B16 6NR
2011-08-01AAFULL ACCOUNTS MADE UP TO 31/10/10
2010-09-03AR0131/08/10 FULL LIST
2010-09-03CH01DIRECTOR'S CHANGE OF PARTICULARS / MR NICHOLAS JAMES GEORGEVIC / 01/05/2010
2010-09-03CH01DIRECTOR'S CHANGE OF PARTICULARS / MR MARK ANDREW GEORGEVIC / 01/05/2010
2010-09-03CH01DIRECTOR'S CHANGE OF PARTICULARS / MRS KAREN REGINA ROSE GEORGEVIC / 01/05/2010
2010-09-03CH01DIRECTOR'S CHANGE OF PARTICULARS / MRS DOROTHY GEORGEVIC / 01/05/2010
2010-09-03CH01DIRECTOR'S CHANGE OF PARTICULARS / MRS AMANDA MICHELLE GEORGEVIC / 01/05/2010
2010-09-03CH01DIRECTOR'S CHANGE OF PARTICULARS / PATRICK JAMES BULGER / 01/05/2010
2010-09-03CH03SECRETARY'S CHANGE OF PARTICULARS / MR NICHOLAS JAMES GEORGEVIC / 01/05/2010
2010-08-06AAFULL ACCOUNTS MADE UP TO 25/10/09
2010-05-26AD01REGISTERED OFFICE CHANGED ON 26/05/2010 FROM SCRIVENS HOUSE PO BOX 15666 BIRMINGHAM B16 6NR
2010-05-26AD01REGISTERED OFFICE CHANGED ON 26/05/2010 FROM MONACO HOUSE BRISTOL STREET BIRMINGHAM B5 7AR
2009-09-01363aRETURN MADE UP TO 31/08/09; FULL LIST OF MEMBERS
2009-09-01288cDIRECTOR'S CHANGE OF PARTICULARS / AMANDA GEORGEVIC / 01/08/2009
2009-09-01288cDIRECTOR'S CHANGE OF PARTICULARS / KAREN GEORGEVIC / 01/05/2008
2009-09-01288cDIRECTOR'S CHANGE OF PARTICULARS / DOROTHY GEORGEVIC / 01/08/2009
2009-09-01AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 26/10/08
2008-09-05363aRETURN MADE UP TO 31/08/08; FULL LIST OF MEMBERS
2008-09-05288cDIRECTOR'S CHANGE OF PARTICULARS / MARK GEORGEVIC / 01/05/2008
2008-09-01AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 28/10/07
2007-09-09363aRETURN MADE UP TO 31/08/07; FULL LIST OF MEMBERS
2007-09-06AAFULL ACCOUNTS MADE UP TO 29/10/06
2007-03-20288cSECRETARY'S PARTICULARS CHANGED;DIRECTOR'S PARTICULARS CHANGED
2006-10-05363aRETURN MADE UP TO 31/08/06; FULL LIST OF MEMBERS
2006-10-05288cDIRECTOR'S PARTICULARS CHANGED
2006-09-05AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 30/10/05
2006-07-03288cSECRETARY'S PARTICULARS CHANGED;DIRECTOR'S PARTICULARS CHANGED
2006-03-22CERTNMCOMPANY NAME CHANGED SCRIVENS (CENTRAL) LIMITED CERTIFICATE ISSUED ON 22/03/06
2005-12-08AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 31/10/04
2005-09-05363aRETURN MADE UP TO 31/08/05; FULL LIST OF MEMBERS
2005-08-02244DELIVERY EXT'D 3 MTH 31/10/04
2004-09-17363aRETURN MADE UP TO 31/08/04; FULL LIST OF MEMBERS
2004-08-24AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 26/10/03
2003-10-18288bDIRECTOR RESIGNED
2003-10-02363aRETURN MADE UP TO 31/08/03; FULL LIST OF MEMBERS
2003-09-02AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 27/10/02
2002-09-10363aRETURN MADE UP TO 31/08/02; FULL LIST OF MEMBERS
2002-08-29AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 28/10/01
2001-09-24363aRETURN MADE UP TO 31/08/01; FULL LIST OF MEMBERS
2001-08-15AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 29/10/00
2001-03-23288bDIRECTOR RESIGNED
2000-11-21363aRETURN MADE UP TO 31/08/00; FULL LIST OF MEMBERS
2000-11-10288cDIRECTOR'S PARTICULARS CHANGED
2000-09-25288cDIRECTOR'S PARTICULARS CHANGED
2000-08-24AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 31/10/99
1999-10-04363aRETURN MADE UP TO 31/08/99; FULL LIST OF MEMBERS
1999-09-02AAACCOUNTS FOR 'MEDIUM' CO. MADE UP TO 25/10/98
1999-07-14288bDIRECTOR RESIGNED
Industry Information
SIC/NAIC Codes
99 - Activities of extraterritorial organisations and bodies
-
99999 - Dormant Company




Licences & Regulatory approval
We could not find any licences issued to THE HEARING COMPANY LIMITED or authorisation from an industry specific regulator to operate. These may not be required.
Share this page on Facebook
Share
Risks
Legal Notices
No legal notices or events such as winding-up orders or proposals to strike-off have been issued
Fines / Sanctions
No fines or sanctions have been issued against THE HEARING COMPANY LIMITED
Liabilities
Mortgages / Charges
Total # Mortgages/Charges 0
Mortgages/Charges outstanding 0
Mortgages Partially Satisifed 0
Mortgages Satisfied/Paid 0
Details of Mortgagee Charges
THE HEARING COMPANY LIMITED does not have any mortgage charges so there is no mortgagee data available

  Average Max

This shows the max and average number of mortgages for companies with the same SIC code of 99999 - Dormant Company

Filed Financial Reports
Annual Accounts
2014-10-26
Annual Accounts
2013-10-27
Annual Accounts
2012-10-28
Annual Accounts
2011-10-30
Annual Accounts
2010-10-31
Annual Accounts
2009-10-25
Annual Accounts
2017-10-29
Annual Accounts
2020-10-25
Annual Accounts
2021-10-31

These are the financial reports (either an abhreviated set of accounts or profit& loss statement and balance sheet) have been filed with Companies House. The reports allow you to do a basic business credit check on THE HEARING COMPANY LIMITED

Intangible Assets
Patents
We have not found any records of THE HEARING COMPANY LIMITED registering or being granted any patents
Domain Names

THE HEARING COMPANY LIMITED owns 1 domain names.

scrivens.co.uk  

Trademarks
We have not found any records of THE HEARING COMPANY LIMITED registering or being granted any trademarks
Income
Government Income

Government spend with THE HEARING COMPANY LIMITED

Government Department Income DateTransaction(s) Value Services/Products
Norfolk County Council 2011-03-25 GBP £2,903

How is this useful? The company sells into the government and has the following income from government. This provides an indication of the sources of their revenue. This is unlikely to be a complete picture of their income from government sources since many councils and countries do not disclose this information or do so inconsistently. For example UK central government has a £ 25,000 transaction threshold which means it is possible for significant spend to not be disclosed. Where there are multiple transactions in a month, we consolidate daily transactions to provide an aggregate value for the month - the description will apply to the first transaction and the total may not reflect all spend on the description.

Outgoings
Business Rates/Property Tax
No properties were found where THE HEARING COMPANY LIMITED is liable for the business rates / property tax. This could be for a number of reasons.
  • The council hasnt published the data
  • We havent found or been able to process the councils data
  • The company is part of a group of companies and another company in the group is liable for business rates
  • The registered office may be a residential address which does not have a commercial designation. If the business is run from home then it won't be a commercial property and hence won't be liable for business rates.
  • Serviced offices are increasingly popular and therefore a business may not be paying business rates directly - the building owner is and this is incorporated in the office rental charge.
Government Grants / Awards
Technology Strategy Board Awards
The Technology Strategy Board has not awarded THE HEARING COMPANY LIMITED any grants or awards. Grants from the TSB are an indicator that the company is investing in new technologies or IPR
European Union CORDIS Awards
The European Union has not awarded THE HEARING COMPANY LIMITED any grants or awards.
Ownership
    We could not find any group structure information
    Is this data useful to you?
    If you found the data here useful, PLEASE HELP US. We are a start-up and believe in making information freely available. Please DONATE to help.
    Alternatively by linking to us, posting on twitter, facebook and linkedin about us and generally spreading the word, you'll help us to grow. Our vision is to provide high quality data about the activities of all the companies in the world and where possible make it free to use and view. Finding and integrating data from thousands of data sources is time consuming and needs lots of effort. By simply spreading the word about us, you will help us.
    Need more information?
    We offer bespoke investigations into companies. If you need more information about this company we can gather more information as directed by you. This may, for example, be a forensic investigation such as tracing hidden assets. The engagement is on a time and materials basis. We charge GBP £ 500 per day + VAT. Contact us with a description of what you're looking for and we will assess whether we can help.
    Other companies at postcode B15 1PH