Pages 11-12 under 'Supplier Capability Improvement', training and coaching is provided to supplier for improving their sustainability performance (and as discussed on pages 9-11, sustainability performance includes performance on the CSR requirements which included items related to modern slavery - see 'Huawei CSR Red Lines in Procurement')

I tend to disagree since there is no specific mention of agency, contract or temporary workers, therefore, I have changed the answer.