general objective of the study was to establish the factors affecting e-procurement in tea processing factories and it was guided by the following objectives; to establish the extent to which system security affects e-procurement implementation, to find out the extent to which cost affects e-procurement implementation, to determine the extent to which legal requirements affects e-procurement implementation in Tea Processing Factories In Nyamira County. This study employed a case study research design to assess e-procurement implementation in Tea Processing Factories in Nyamira County. This study targeted 50 individuals from Tea Processing Factories in Nyamira County. The heads of procurement and stores department and employees among other departments which work with procurement function will be targeted. This study adopted a stratified sampling technique whereby the researcher will carry out a simple random selection of five respondents from the procurement departments and 5 from given sections in finance, marketing and production functions giving a sample size of 40. From the findings it was revealed that; Legal protection of confidential information and the ability to authenticate and enforce electronic contracts were clearly the most cited challenges. Lack of support from the existing legal infrastructure and means for protecting and safeguarding business interest legally while using electronic platform was also seen to be a key challenge. This is clearly corroborated by the fact that currently the ICT policy in existence has not fully created a supportive legal framework where related issues are addressed. The integration of suppliers into a seamless procurement platform as a key objective of any e-procurement system was also noted. Notably internet connectivity and system integration with those of suppliers were key impediments. Lack of trained personnel and necessary support hardware were still key impediments just as was in the case of cost consideration. I recommend that, Supplier enablement to be considered since it might be a component that requires both the firms and its suppliers to work together and create a system that is efficient and mutually integrated. It is Is recommendation as well that both the company should look at a means of working together as a team and build systems that will allow easier e-procurement functionality. More so each party must solicit the support of the other either by sharing related costs, IT platform and resources. Despite internet connectivity being currently a challenge it may not last due to the advent of the fiber optic cable spreading across the country.