United Chemical Co., Ltd., Shaanxi, China.Global leader in chemical Manufacturer, providing high-quality sodium cyanide (AuCyan™), activated carbon (AuCarb™), and eco-friendly leaching agents (AuLeach™) for gold mining.We provide cost-effective, high-recovery solutions for gold mining operations worldwide. Factory direct pricing, expert technical support, and international shipping compliance.+8617392705576info@unitedchemicalcn.com 💬 WhatsApp 聊天 📍 Shaanxi, China