In 2023, Japan's import value for exfoliated vermiculite, foamed slag, and expanded mineral stood at approximately 22 million USD. The forecast from 2024 to 2028 shows a steady increase, with the value expected to rise from 22.973 million USD in 2024 to 26.204 million USD in 2028. The year-on-year growth indicates a stable upward trend, with notable increases such as 3.6% from 2025 to 2026. The compound annual growth rate (CAGR) for this period is approximately 3.32%, reflecting moderate but consistent growth.

Future trends to watch for:

Technological advancements in construction materials could drive higher demand.
Environmental regulations may impact import volumes and costs.
Economic factors in Japan could affect purchasing power and influence future import levels.