




Job Summary: Perform sampling activities, concentrator plant preparation, mineral sample preparation, lime and water analysis, and laboratory equipment maintenance. Key Responsibilities: 1. Bulk yard sampling and batch preparation. 2. Mineral sample preparation and chemical analysis. 3. Laboratory equipment cleaning, verification, and maintenance. **Date:** 2 Jul 2026 **Location:** 14 \- LIMA, PE **\#job\-location.job\-location\-inline { display:** inline; } **Company:** Buenaventura Perform sampling activities, concentrator plant preparation per shift, and bulk yard sampling and batch preparation. Perform mineral sample preparation (crushing, drying, and pulverizing), lime and water analysis, composite sample preparation, and analysis by dry method, wet method, and Atomic Absorption. Clean and verify Atomic Absorption equipment, check calibration standards, inspect equipment using a checklist, and report material, equipment, and tool requirements—including tools in poor condition. Prepare standard reference samples and maintain their inventory. Record results in notebooks and SIGM, and enter the quantity of acids used after sample digestion


