Some 220 garment factories have shut down in Bangladesh with the loss of up to 150,000 jobs after the collapse of Rana Plaza shone a light on unsafe working conditions in the ready-to-wear industry, triggering a wave of inspections, according to a report on Saturday. More than 1,100 workers were killed when the building collapsed in 2013, creating urgent demands for global retailers to do more to ensure the safety of their workers in Bangladesh, the world’s second biggest garment exporter after China.