This study’s main goal is to evaluate a theoretical framework that links the degree of voluntary disclosure made by listed corporations with four important corporate governance determinants. on Nigeria Exchange Group (NGX). These factors that determine corporate governance include firm profitability, board size, positional duality and block-holder ownership, The results show that there is a substantial positive link between board size, firm profitability, and the overall level of voluntary disclosure. This finding suggests that in Nigeria, these factors are the primary motivators for voluntary disclosure. On the other hand, there is no significant link discovered among board size, duality in position, and the total amount of voluntary disclosure about corporate governance. Instead, a negative significant correlation was identified between block-holder ownership and duality in position and voluntary disclosure. Evidence from this empirical study supports the view that Nigeria is one of Africa’s growing markets with respect to the voluntary corporate disclosure environment. It is concluded that firm profitability of emerge market in Nigeria implied that there was reasonable performance, while board size, duality in position implied that for a unit increase on EXTVDIS with the emerge market in Nigeria would decrease, while block-holder ownership. shows reasonable performance. It is recommended that all the management should keep frequency of their meetings periodically, and regularly, to maintain the performance of firm profitability in an emerges market in Nigeria, it is advised that block holder is to increase the company common shares to boost the performance of the firms.