Bangladeshi officials have accused the operator of a container depot of exacerbating a deadly blaze by not storing chemicals safely.
Nine firefighters were among more than 40 people killed after fire broke out near the port city of Chittagong.
Officials said containers of hydrogen peroxide were labelled incorrectly - and firefighters doused flames with water instead of foam.
The depot company has yet to comment on the allegations.
On Monday, officials revised down the initial death toll from 49 to 41, saying some bodies had been counted twice. Many of the hundreds injured remain in a critical condition and the number of dead is expected to rise.
