This paper presents an investigation on operational excellence (OpX) models of sustainable supply chains (SSCs) in Sri Lankan manufacturing organizations during Covid-19 pandemic. This investigation consists of multiple case studies of Sri Lankan manufacturing organizations in following industries: rubber and plastic products, wearing apparels, paper and paper products. Based on a pre-existing OpX model, six Critical Success Factors (CSFs) were identified in terms of SSCs. This research was conducted as an exploratory case study where data is collected through in-depth interviews, company websites/reports. By using a deductive approach, findings of CSFs effecting behaviour of OpX models are displayed. Thematic and Content analysis on the behavior of OpX models in SSCs are non-generalizable beyond this research. The findings display the organization in respect to wearing apparels has a more sustainable approach to better manage their OpX model and more strategic Upper Echelons to gain better strategic outcomes before/during Covid-19 pandemic. The profile of a manager was vital in interpreting OpX models in their organizations. The study outcomes can inform organizations to prime their OpX model for a crisis of Covid-19 magnitude. The effects may be generalized further to other industries. The study describes connectivity of Upper Echelons Theory to OpX models and contributes to literature through a demonstration of CSF behaviours in OpX models of SSCs during the Covid-19 crisis.

@article{oscm-2022-126,
  title={Sustainable Supply Chains of Sri Lankan Manufacturing Organizations: A Study on Operational Excellence Models During the COVID-19 Pandemic},
  year={2022},
  author={M.T.D. Malsinghe and M.H.A. Gunathilaka and I.P.C. Dinesh Bandara and A.I. Wijerathne and Nagalingam Nagendrakumar and W.D.N. Madhavika},
  journal={Operations and Supply Chain Management: An International Journal},
  volume={15},
  number={2},
  pages={228--239},
  doi={10.31387/oscm0490343}
}

M.T.D. Malsinghe, M.H.A. Gunathilaka, I.P.C. Dinesh Bandara, A.I. Wijerathne, Nagalingam Nagendrakumar, W.D.N. Madhavika (2022). Sustainable Supply Chains of Sri Lankan Manufacturing Organizations: A Study on Operational Excellence Models During the COVID-19 Pandemic. Operations and Supply Chain Management: An International Journal, 15(2), 228-239. https://doi.org/10.31387/oscm0490343