In your report, go to Step 3: Review Chemical Inventory
Click on the "Import Chemical" button, found in the upper right corner of this section
Click on the "Pick Facility" link
Select the facility from your list that stores the chemicals you want to import over
Check the box next to the Chemicals to be imported to your report from the list, then click "Import"
Confirm that you want to import the chemicals selected
Verify that the chemical you imported is now listed in the Chemical List under Section 3 of your facility report.
Edit the chemical, and update all storage quantities and storage locations for the facility you are completing the report for.