Reducing material resource consumption 3 Industry Relations and Technology Transfer Center, Vietnamese-German University (VGU), 1. Introduction Key words: automotive parts, consumer perception, remanufacturing, resource efficiency, Southeast Asia, Remanufacturing is an important element in enhancing the resource efficiency of economies. Automotive parts are a representative target of remanufacturing. This study has attempted to estimate the potential contribution of automotive parts remanufacturing toward reductions in material resource consumption in the Southeast Asian region. Material consumption for automobiles and automotive spare parts in the region in 2030 is estimated at 5.2 million tons and 314,000 tons, respectively. Of the materials, steel is expected to comprise 3.5 million tons and 213,000 tons, accounting for 2.7% and 0.16%, respectively, of steel use in the region. The material-saving effects of remanufacturing are then considered. The results indicate the potential contribution of automotive parts remanufacturing to the reduction of material consumption in the region in 2030 to be an estimated 251,000 tons of materials and 170,000 tons of steel, accounting for 0.13% of steel use in the region. This article also presents a discussion on potential market barriers to remanufacturing in the region. The major barriers include: 1) manufacturers’ hesitation to undertake remanufacturing, and 2) consumers’ non-acceptance of remanufactured products. The implications of a web-questionnaire survey the study conducted in four countries in the region to assess consumers’ acceptance of remanufactured products are discussed along with items needing further study. sustainable consumption and production than that of Japan, the US or the EU (Table 1). On the other hand, the number of cars owned in the region is 58 million, 4.5% of the global total, and the annual consumption of steel there is 93 million tons, 4.9% of the global total (Table 1), representing the potential for car ownership growth. These factors indicate that the region’s material and energy consumption is most likely to increase significantly in the following decades. Measures are necessary to mitigate the increase. is an essential requirement for realizing a sustainable society. Overconsumption of material resources has been widely warned about since as early as the 1970s. Still, global consumption has continued to increase over time, and it is expected to increase further in the future. The global annual consumption of metal materials has reached 8 billion tons today, and it is predicted to reach 20 billion tons in 2060 (OECD, 2019). The current study focuses on the Southeast Asian region. The region’s economic development is remarkable, and the consumption of material and energy is also increasing rapidly. Today, the region has a population of 662 million, accounting for 8.5% of the global population, and substantially larger Remanufacturing is an industrial process in which used products are restored to their original as-new condition/ performance or better (UNEP-IRP, 2018). Remanufacturing has the effect of reducing material demand because it prolongs the usage of the components of a product and thus reduces the demand for new component manufacturing. Remanufacturing is even 2021 AIRIES 65 Global Environmental Research 25/2021: 065–073 printed in Japan 1 Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Le Lai Street, Hoa Phu Ward, Thu Dau Mot City, Binh Duong Province 75000, Vietnam 2 Research Institute of Science for Safety and Sustainability, 1-2-1 Namiki, Tsukuba-shi, Ibaraki 305-8564, Japan National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba-shi, Ibaraki 305-8569, Japan *E-mail: matsumoto-mi@aist.go.jp Abstract Estimating the Potential Material-saving Effects of Automotive Parts Mitsutaka MATSUMOTO1*, Yoon-Young CHUN2, Thomas GUIDAT3 Remanufacturing in Southeast Asia and Kiyotaka TAHARA2
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