The **Siam UAV Industries Mercury-1** is a **fixed-wing military/ISR drone from Thailand** that appears to be designed around **long-endurance surveillance-style missions** rather than consumer or commercial imaging work. Based on the supplied confirmed data, it combines a **25 kg maximum takeoff weight**, a listed **12-hour endurance**, and a **2,000 m ceiling**, making it notable as a **persistence-focused platform** rather than a short-hop tactical multirotor.