Notice

SG8 5HE, Johnson Matthey plc: environmental permit application advertisement - EPR/BT7086IJ/V017

Published 6 March 2025

Applies to England

© Crown copyright 2025

This publication is licensed under the terms of the Open Government Licence v3.0 except where otherwise stated. To view this licence, visit nationalarchives.gov.uk/doc/open-government-licence/version/3 or write to the Information Policy Team, The National Archives, Kew, London TW9 4DU, or email: psi@nationalarchives.gov.uk.

Where we have identified any third party copyright information you will need to obtain permission from the copyright holders concerned.

This publication is available at https://www.gov.uk/government/publications/sg8-5he-johnson-matthey-plc-environmental-permit-application-advertisement-eprbt7086ijv017/sg8-5he-johnson-matthey-plc-environmental-permit-application-advertisement-eprbt7086ijv017

Details of the application

The Environment Agency has received an application to vary an environmental permit under the Environmental Permitting (England and Wales) Regulations 2016 involving substantial change to a permit from Johnson Matthey plc.

Application number

EPR/BT7086IJ/V017

Regulated facility type

This chemicals site operates a variety of complex activities mainly involving the refining of precious metals, development of speciality chemicals, and subsequent processing into a diverse range of products. The scheduled activities that are changing as a result of this application are:

  • Section 4.1 Part A(1) (a) (vii) Producing organic chemicals such as organometallic compounds. The operator is applying to vary this activity to expand the existing homogeneous catalyst plant (HomCat), including redirecting abated emissions.

  • Section 4.2 Part A(1) (a) (iv) Producing inorganic chemicals such as salts. The operator is applying to vary this activity to install a new Third Century Refinery, which will replace the existing Platinum Group Metals Refinery, and be able to accept waste classified under five additional waste codes.

  • Section 4.2 Part A(1) (c) (viii) Any manufacturing activity involving the use of, or the use or recovery of, any compound of platinum. The operator is applying to vary this activity to allow the use of iridium.

Regulated facility address

Royston Site
Orchard Road
Royston
Hertfordshire
SG8 5HE

The application contains a description of how the proposed change(s) may affect:

  • the installation
  • the materials, substances and energy it will use and generate
  • the conditions of its site
  • the source, nature and quantity of its foreseeable emissions and their significant effects on the environment
  • the proposed techniques for preventing, reducing, and monitoring its emissions and preventing and recovering waste
  • and an outline of the main alternatives, if any, considered

How to view and comment on the application

If you have any comments on the application send these by 03 April 2025.

You can comment:

Online: view and comment on the application using Citizen Space

Via email: pscpublicresponse@environment-agency.gov.uk

For advice about how to make a representation or if you are unable to make a representation via e-mail, please call 03708 506 506.

The Environment Agency will normally put any comments it receives on the public register. This includes your name but not your personal contact details. Please tell us if you do not want your response to be public.

The privacy notice for permit applicants/operators can be viewed at Privacy Notice

Back to top