Impact: The chapter aims to examine the level of corporate environmental disclosures (CED) and the influence of managerial efficiency, human capital, and research and development (R&D) to the increased level of CED through the multilevel theoretical framework. Following market capitalization method, the study takes 100 sample manufacturing corporations listed into consideration and finally utilizes 96 annual reports in the year 2017. The study conducts an ordinary least square regression analysis to reach the conclusions for the proposed hypotheses. The study explores CED with the view of the agent efficiency, organizational power, and resources in terms of organizational capacity. The study findings indicate that human capital and R&D have positive, significant association with CED. The role of managerial efficiency is also positive in growing CED. Researchers’ personal decisions are utilized in the content analysis and data collection from the annual reports in addition to one firm-year observation. Policy-makers’ attention and industry practitioners’ rationality are tensed how eco-management practice is incorporated in the business operations. In addition, the study attracts policy-makers’ vision on how corporations can invest more in R&D. The study attempts to explore CED with the multilevel theoretical framework in which operationalization capacities of different levels of resources are highlighted as the pivotal players in achieving organizational environment-friendly operations and disclosures.