Our company has been producing high-quality mountain sand for concrete use from the mountains of Osogoe in Iwakuni City. The mountain sand is refined at our own manufacturing plant and contains a significant amount of weathered granite sourced from the mountains of Osogoe in Iwakuni City. It does not contain salt like sea sand, and we carefully wash and remove organic matter and fine soil, which has earned us a reputation for providing very clean sand. In order to meet our customers' needs, we are committed to producing better products with a focus on high quality and low cost, and we strive for continuous improvement every day.