Pg9. We conducted 125 manufacturing supplier audits and assessments covering labor rights during FY22, approximately 93% of which were audits conducted by independent third-party auditors. For non-manufacturing suppliers that provide goods and services for HP at their own facilities, we conducted 107audits, all of which were conducted by independent third-party auditors.
"a supplier self-assessment questionnaire is used to prioritize audits. If and audit is schedule, it will evaluate the supplier's conformance to the HP Supplier Code of Conduct and/or specialized HP labour standards."
It seems like they conduct onsite visits themselves and with independent audits. p.
7 : "For selected manufacturing and non-manufacturing suppliers with high risk, we conduct onsite assessments in conformance with our Supply Chain Foreign Migrant Worker Standard."
This is part of the remediation process, but it is a way of monitoring compliance and involves third-party auditors: p.8 "HP schedules an onsite validation visit which consists of document review and
confidential worker interviews conducted by certified auditors."