The project entitled “Critical Pipelines” was carried out during the maintenance stop. The aim of the project was to increase the factory’s reliability. A number of pipelines were lifted off their supports as a precautionary measure. These were then blasted, painted and returned to their supports. These pipelines are used to transport EDC around the factory. This preventive maintenance ensures that the pipelines will last, making it possible for Shin-Etsu to maintain its position as a reliable supplier in the future.