PurposeInvestigate the potential of using “lean” in garment supplier factories to enhance productivity and compliance capability, so as to fulfill a buyer's expectation of lower price, shorter lead time, and higher occupational health and safety (OHS) standards.Design/methodology/approachBy means of an intervention, lean tools integrated with OHS elements were introduced in four Bangladeshi key garment suppliers of a Danish buyer. By employing a qualitative approach, both quantitative and qualitative techniques were used to collect data on productivity, OHS, and buyer–supplier efforts.FindingsThis study demonstrates that lean tools, integrated with OHS elements, can be used to improve the productivity and compliance capabilities of supplier firms, which meet a buyers' changing demands for lower prices, shorter lead times, and higher compliance standards. This study suggests that the improvement of productivity and OHS in supplier firms through lean implementation could be a better choice for buyers than switching to new suppliers with uncertainties in productivity and delivery, as well as OHS compliance problems.Practical implicationsThe findings of this study suggest that garment suppliers can benefit from implementing lean, thereby improving their capacity to meet buyers' expectations. Therefore, both suppliers and buyers have a mutual interest in the application of lean in suppliers' production facilities.Originality/valueBy considering both buyer and supplier perspectives, this research is a unique attempt to investigate the possibilities of lean implementation at the shop-floor level to meet the market challenges in the context of a developing country.