The Position of Sharia banking in Indonesia legal system is important. The study aims to find out how is the position of sharia banking in the national legal system. The method used in this research is normative juridical with qualitative analysis approach. Moreover, the result is the position of Islamic banks in the economic system is as a bank institution that helps the Indonesian economy in increasing financial inclusion and becomes an institution that carries out an intermediary function. In relation to the national legal system, Islamic banking has a strong position, because it is an inseparable part of the legal system in force in Indonesia.

The Palm Oil Supply Chain (POSC) is a series of companies dealing with materials or products derived from oil palm fresh fruit bunches. The chain is interdependent sequentially and cooperate in the control, management and improvement of the flow of products, money and information from the upstream side to the downstream side. The POSC consists of palm oil seed growers, farmers, traders, CPO factory, refinery factory, distributor/retailers, and consumers. The first party in the chain is the palm oil seed or seedling growers. These growers have a very important role for palm oil farmers because the quality of the seeds determines the quality of further fruits. The aims of this study are to evaluate the feasibility study of growing the seedlings, and measure the sensitivity of the factors to the profitability. By using modified Hayami method for the supply chain, the added value obtained is Rp5.950.227.861 which is 34,73% of the sales. The feasibility analysis calculation with an interest rate of 13.5%, shows the NPV of Rp 38.439.321.865, with the BEP of Rp 828.430.058, while ROI result 78,62%, Payback Periode value 1,27, Modified B/C Ratio 1,69, and IRR 78,33%.