Sun Fukusukeya Co., Ltd. of Yachiyo, Chiba Prefecture, led by Representative Director Mitsuo Itakura, announced that from May 2026 it will further strengthen the supply system for its next-generation insulation panel, SD Panel, which is made using offcuts. The move responds to tightening insulation material supply caused by escalating tensions in the Middle East and is intended to help builders and construction companies address procurement challenges. Instability in the Middle East is directly linked to fluctuations in crude oil prices, driving up manufacturing costs and disrupting supply chains for foam plastic insulation materials that rely mainly on petroleum as a raw material. Major domestic insulation manufacturers in Japan have announced successive price increases and order restrictions for some products, while construction sites are increasingly reporting difficulty securing materials and delivery delays. Such conditions may not only raise construction costs but also delay housing supply plans and make quality control harder to maintain. SD Panel offers a solution to these market challenges. The product is manufactured by recycling 100% of insulation material offcuts that would otherwise be discarded, greatly reducing dependence on petrochemical products. This production process enables stable raw material procurement that is less vulnerable to international conditions. The main benefits of SD Panel include stable supply that is resilient to geopolitical risk. Its main raw material is insulation offcuts generated within Japan, allowing continued stable production and supply without being affected by overseas petroleum import conditions or changes in international affairs. It also offers economic advantages that help absorb rising costs. By effectively using offcuts, raw material costs can be significantly reduced, allowing the product to maintain competitive pricing even amid rising insulation prices. Compared with general insulation panels, it is expected t