Asos, a UK-based online clothing and cosmetics retailer, is asking third-party brands that want to sell on its website to sign up to the Transparency Pledge.

Being a signatory to the pledge requires businesses to publicly declare their manufacturing supply chain, joining the ranks of other brands like H&M, Next, Inditex, Pentland Brands, and Asos.

This step comes as Boohoo was recently targeted and accused of modern slavery practices, as the garment workers in the Leicester, England factory were being paid below minimum wages.

Asos wants partner brands to strengthen their commitment to transparency and responsible action while mapping all parts of their UK supply chain. The company also wants evidence of the same. Partner brands will additionally have to identify risks within the supply chain and offer solutions to mitigate them.

Along with the Transparency Pledge, brands will have to join Fast Forward, an auditing programme to improve labour standards by uncovering hidden exploitation.

Asos co-founded Fast Forward in 2014. The Fast Forward auditing programme has seen many giants become a part of it since inception including Debenhams, M&S, Missguided, New Look, Next, and River Island.

While initially focused only on the UK, Asos plans to take this initiative to harbour better working conditions across its supply chains international and will be holding a workshop in September to help brands reach these commitments.