See pg 25 for discussion of whistle-blower policy. I'm assuming this only applies for direct employees. pg 25 also refers to SRG looking into ways to get factory workers to be able to make reports.
Pg. 11
“Whistleblowing Policy
Outlines for Team Members, Trade Partners, Service Providers and others, the mechanisms for reporting and investigating concerns about conduct suspected to be unethical, illegal, or contrary to our values. Concerns may be raised to the Integrity Officer in writing, by phone through the Integrity Line (for our China-based Team Members) or anonymously via ‘Whispli’ on https://superretailgroup.whispli.com/IntegrityLine”