Abstract— This research aims at studying the impact of the interdependence structure of a local pineapple processing supply chain

on supplier performance, which may help increasing value of low-grade pineapples. The study utilizes a mixed research methodology between quantitative and qualitative methods designed to enhance the cause and effect of the research outcomes. The sample groups are consisted of pineapple farmers, middle men, local processors and retailers in Prachuap-Khiri-Khan Province, Thailand.

The results from the quantitative method show that the interdependence structure has a positive effect on supplier performance. Total interdependence has more influence than dependence asymmetry does, in connection with improving supplier performance. According to interviews with the following four groups of participants, pineapple farmers, middle men, local processors  and retailers, the ones who have total interdependence with their regular customers have high performance. The total interdependence creates trust among supply chain members, leading to regular pineapple purchases after launching to the market. This should be beneficial to suppliers because their inventory of fresh pineapples can be substantially reduced, while customers may be confident in quality, taste and price of fresh pineapples. This study may be served as guidance for developing an interdependence structure within the supply chain. Moreover, it may contribute to supplier performance improvement in different aspects, such as product quality, agreement on cost and service in fulfillment of the current and future demands