Arsenic metal prices refer to the market cost of arsenic — usually quoted per kilogram or tonne — in global raw material markets. Arsenic is a metalloid, meaning it has both metallic and non-metallic properties. Although arsenic often has a negative reputation because of its toxicity, it plays a real role in specific industrial applications. Because demand for arsenic comes mostly from practical use rather than investment or speculation, its price trend tends to follow real economic activity, supply conditions, and regulatory factors.