Legal name changes require an official amendment to the licence/permit document and is processed by The Ministry of Natural Resources (MNR) through the Integrated Aggregates Operations Section (IAOS). This new branch of the MNR came into effect on April 1, 2020 and the memo explaining the new delivery model can be found here (PDF 0.25MB).
The IAOS branch is contacted through a general delivery inbox. From there your request will be assigned to an IAOS team member and they will contact you directly. Please send your amendment requests to: ARAapprovals@ontario.ca
For guidance on how to fill out the amendment forms correctly, you can reach out to your local Aggregate Technical Specialist. Click here to find the MNR Aggregate Technical Specialist in your area.