The objectives of the study are to analyze cost and return the productivity of Miang, to
study the supply chain management pattern and to study the management capability of Miang also
find out the guideline to develop the supply chain system of their product. The study focuses on 3
districts within the Northern area of Thailand; Barn Mearua Pardang Sub-district Muang District
Phrae Province, Barn Par Miang Jachorn Sub-district Muang Parn District Lampang Province and
Ban Rhaw Kai Sub-district Meatang District Chiangmai Province. The structure and semi-structure
interview are used for collecting data. The process of data analysis is divided into 2 parts, there are
the accounting data analysis and the supply chain data analysis. The analysis is interpreted both
quality and quantitative form. The result finds that the average total cost of product in Phrae
Province is equal to 12.62 baht per kilogram. In Lampang Province there is an average of that cost
equal to 0.69 baht per kilogram while in Chiangmai the average total cost of product is 4.96 baht
per kilogram. Although the quantity of product in Phrae Province is not difference from Lampang
Province, but it has the most investment on fixed asset when compared with 3 Province in this case
can be affected to the most total cost in Phrea Province. The result of return on investment found
that the ROI in Phrae Province is between 780.13-4,782.18 percent, in Lampang is between 90.80-
789.80 percent and in Chiangmai is between 90.80-525.63 percent. It can be shown that the return
is worthiness to investment in all 3 Provinces. The study of supply chain in those 3 areas found that
the complexity of supply chains is not complicate, the stakeholder within supply chain composed
of the farmer, the distributor and the customer and their function can be overlaid each other. The
extended supply chain might be used for development of supply chain of Miang to manage the risk
of cultural impact. Moreover, the concept of investor for joint venture should be applied to the
project for maintain the balance of sustainable development.