Benetton Group, a global apparel retailer based in Italy, is said to be violating terms of an accord it signed to compensate victims of Rana Plaza disaster.
Clean Clothes Campaign (CCC), one of the largest alliances of labour unions and non-government organisations in the world, made the claim in a press release.
Benetton signed the accord in May 2013 under pressure from a worldwide campaign which generated over a million signatures, the report said on Wednesday.
However, Benetton is now said to be denying compensation to workers injured in the Rana Plaza disaster that killed 1,138 people.
Benetton was called on to pay $5m in compensation to the Rana Plaza victims, however did not do so, the CCC said on the basis of an investigation report.
The CCC is said to have found proof that Benetton did not disclose at least two of their suppliers to the list of factories that would be inspected, a violation of the accord.
This is not the first time Benetton has failed to fulfill its obligations or public commitments in relation to the disaster, the press release said.
They initially denied sourcing from one of the Rana Plaza factories.