In Indonesia’s palm oil frontier, the state and companies play a huge role in its institutionalization and authentication to legitimize the existing extractive power structures, while only a small number of companies joined as members of the sustainable certification. Alongside the growing demand for ethical products, sustainable certification is enacted as a legitimate ‘independent body’ to authenticate the commodity for supervising ethical practices within the business, such as the Roundtable Sustainable Palm Oil (RSPO). In most of the palm oil supply chain practices, the monoculture business is often engaged in violation of social and ecological rights, done mostly by the corporations, including the RSPO-certified members. This paper explores further the trend of “sustainable” palm oil and how it is still far from representing genuine reform, and instead legitimizes the long-standing palm oil giants (companies) to disguise the displacement process and ecological damage by mediating the power relations between the states, corporations, civil societies, and the non-human environment. To make the scope focused, this essay used the case study of West Sumatra, Indonesia, to further depict the political-economic reality. Integrating the concept of spatializing states and the process of audit culture by using rendering technicalities  to depict the discriminative institutionalization of palm oil politics (Ferguson & Gupta, 2002; Li, 2007; Shore & Wright, 2024) In the latter part, the analysis will focus on the function of the authenticity concept to explore palm oil actors’ attempt in making sustainable and ethical markets.