"Whistleblowing policy - We encourage all or our employees, customers, and other business partners to report any concerns related to the direct activities, or the supply chains of, NHP. This includes any circumstances that may give rise to enhanced risk of slavery or human trafficking. Our whistleblowing procedure is designed to make it easy for employees to make disclosures, without fear of retaliation." (p. 5)
I did not choose supply chain workers even though they do encourage to report any concerns related to the supply chains of NHP. I do not think supply chain workers would be included under the "other business partners" category of people encouraged to report.