Calls are growing from institutional investors for improved labour standards and supply chain oversight in Bangladesh following recent factory disasters, as a fresh wave of fund managers and activist groups sign an appeal for change.

The number of signatories to a statement urging reforms has swelled by more than 60% over the last two months to more than 200 organisations with $3.1 trillion in assets, according to the latest list published by the Interfaith Center on Corporate Responsibility. The ICCR, an activist investor group, first published the statement in May.