Five years on from the Rana Plaza disaster, lobby group Fashion Revolution has published a report on the supply chain transparency of the top 150 biggest fashion brands.
The 2018 review ranked retailers according to how much they disclose about their social and environmental policies, practises and impact.
Brands were given a score out of 250, with points rewarded on public disclosure across five key areas singled out by Fashion Revolution: policy and commitments, governance, traceability, know show and fix, and spotlight issues.
The points were then translated into percentages.
Amazon scored just ten per cent in the scoring, with Monsoon Accessorize scoring just nine per cent and Dior and Longchamp scoring zero per cent.
At the other end of the league table Adidas and Reebok tied with 58 per cent of possible points, with H&M coming in at 55 per cent and Marks and Spencer scoring 51 per cent.
No retailers managed anything higher than 58 per cent, leaving plenty of room for improvement in the transparency index.
The results also found Asos, The North Face and Primark were among the companies who had managed to increase their level of disclosure overall.
Marc Jacobs, Dolce & Gabbana and Chanel were singled out by the Fashion Transparency Index as among the least transparent businesses when it comes to being open about the labour conditions on their supply chains.
The research comes at the start of Fashion Revolution week, running from April 23 to 29, marking the fifth anniversary of the Rana Plaza factory collapse in Bangladesh which killed 1,138 people.
To mark the week, the group is encouraging consumers to ask brands #whomademyclothes over social media or email, with the aim of developing greater transparency within the fashion supply chain.
“Transparency is like water. After the Rana Plaza factory collapsed in Bangladesh five years ago, transparency started a slow trickle,” Fashion Revolution founder Carry Somers said on release of the report.
“It began bubbling up through the cracks. Now it is seeping into some of the darkest corners, permeating the fabric of the industry” she added.
Overall, the average score among the 150 brands and retailers was 21 per cent, of just 52 points out of a possible 250.
It marks a one per cent increase in transparency from Fashion Revolution’s 2017 results but shows there is a long way to go for the wider industry.