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Penta-Ocean Construction Co., Ltd.

Tokyo, Japan - September 24, 2025 - Sand Techno Co., Ltd. (Penta-Ocean Construction's subsidiary, President Tomoyoshi Danbayashi, hereinafter Sand Techno) participated in a demonstration project conducted by Japan Asphalt Mixture Association (hereinafter, JAMA) aimed at promoting wide-area utilization of recycled aggregates and base course materials via rail container transport.

In urban areas, pavement construction and redevelopment projects produce a significant amount of crushed asphalt and concrete debris. These materials often accumulate in large quantities without being effectively repurposed as recycled aggregates and recycled base course materials. In contrast, regional areas, where such projects are limited, face significant challenges in obtaining adequate quantities or stable supply of these recycled materials, resulting in a notable supply-demand imbalance across different regions.

To address these issues, JAMA launched an initiative to promote utilization of recycled aggregates and recycled base course materials through rail container transport across a wide area. To spearhead the initiative, recycled base course materials produced from concrete debris were transported from Sand Techno Ichikawa Asphalt Recycling Center (in Ichikawa City, Chiba Prefecture) to Maeda Road Construction Co., Ltd. Toyama Asphalt Mixing Plant (in Toyama City) between August 26 and 29. Sand Techno loaded five flexible bags filled with recycled base course materials into rail container transport and conducted the weighing.

The demonstration project intends to identify key challenges, including transportation costs, logistical frameworks, regulatory issues as well as quality control, with the aim of achieving resource circulation across prefectural borders.

Penta-Ocean Construction Group is committed to fostering sustainable social development through its sincere efforts to address pressing sustainability issues.