>> The 24th of April, 2013. 1,138 people crushed to death, and 2,500 injured, as the Rana Plaza textiles factory came crashing to the ground in Bangladesh. The disaster sparked global calls to improve working conditions and the transparency of industry supply chains. But four years later, it seems little has changed.
>> I'm Reuters' reporter Mia Wormsley on Oxford Street, one of London's most iconic shopping districts. Now new research shows that none of us have enough information about where or how the clothes we buy are made. And whether or not our money is being used to support exploitation, human rights abuses, and environmental destruction.
>> The fashion transparency index looked at 100 of the biggest global fashion brands and the information they give about their supply chains. None of the companies scored above 50% and 3 scored 0, including luxury fashion house Dior. They did not reply to requests for a comment. Sarah Ditty is the author of the index.
>> Basic health and safety measures don't, still don't exist for a lot of garment workers in the fashion industry, 80% whom are women between the ages of 18 and 35. We know that modern day slavery exists in the garment supply chain. As consumers I truly believe that we don't want to be supporting unwittingly exploitation of people who make our clothes.
But we are not equipped with the knowledge to understand if we are or if we aren't.>> Marks & Spencer, Adidas, Reebok, and H&M got the highest score, with 48%. But a member of the European Parliament, Anna Leets says, while many brands are making positive changes, more needs to be done.
>> It's great to have European national initiatives like the German textile initiative, Netherlands, fashion revolution in Great Britain. But what it needs is a European framework. We have to have European standards that the business can rely on, produce situations. But also that we as consumers, European-wide, can be relying on, this has been produced in the way that we feel not ashamed of it.
>> This week global movement fashion revolution wants shoppers to use the #WhoMadeMyClothes. It hopes it'll encourage companies to be more open, arguing that if you can't see it, you can't fix it.