A Thesis/ Dissertation Submitted in Partial/ Fulfilment of the Requirements for Award of the Degree of Doctor of Philosophy/Master of Master of science in Procurement and supply Chain Management (MSc-PSCM) of Mzumbe UniversityThis study aimed to assess factors associated with performance of supply chain of Bottled water in Zanzibar: A case study of Drop of Zanzibar Company Limited. This Company embracing and applying necessary measures capable of addressing factors that tend to hinder and affect smooth running of performance of supply chain which seem to be an uphill task. The researcher therefore decided to conduct this study to gain useful insight information that could help the company avoid such effects. The specific objectives of the study were to assess on the performances of supply chain of bottled water at Drop of Zanzibar Ltd on the effects of: environmental uncertainty, information technology, influence of government support and effects of supply chain relationships on performance of Supply Chain of bottled water industry in Zanzibar. The primary data was collected using questioners filled-in by a sample of 90 ICD respondents using purposive sampling procedure from the company’s different departments, whereas Secondary data was extracted from journals and other published documents. Exploratory study design applied was descriptive data analysis using SPSS computer package. The study found that most of the Company’s manpower possess University education and are aged between (18 to 40) years. Majority of the respondents agree that uncertainty on rainfall cannot affect the performance of Supply Chain of bottled water. The study also found that weather changes influence the performance of supply chain of bottled water at Drop of Zanzibar Ltd. It was also revealed that online communication among the water bottler staffs is at higher levels and workers are active in replaying emails for immediate actions. The researcher found that organization use PMIS to handle procurement activities. Most of the respondents agree that the government provides favorable policy to water bottlers on their production activities. The researcher recommend company’s management to improve ICT system capable of enhancing SC performance to ensure timely operations, increasing management integrity, provision of clear records among other factors. The Government on the other hand is advised to assist in building a mega robust ICT infrastructure capable of meeting current developments and technological changes in the industry and reduce network problems.