Corporate purchases for both "La Colorada" and "Dolores" mining units.Achievements:- Savings of USD 5K throughout the negotiation process for the ATLAS Compressors annual maintenance program. Contract amount: USD 221K.- Blanket Purchase Order placed for the whole 2024 consumptions for major components for both cone and jaw crushers. Order amount: USD 86K.

Responsible for purchasing parts of the following heavy machinery SANDVIK, CATERPILLARand RESEMIN; drilling steel and bearings.Achievements:- Approx. 60% reduction in the generation of PO’s related to Drilling Steel during Q4-2021. Joint review along with the Warehouse Coordinator in order to raisereplenishment amounts based on consumption and stock coverage (three-monthcoverage).- Design of a new Excel template for the evaluation of purchases.- Proactive participation with the Warehouse and Costs department, as part of thetransition process from the former “ACCPAC” system to the ERP “ORACLE”.

Daily sending of generated sales in the online channel to suppliers. Coordination with suppliersand transportation companies. Logistics reports summaries and updates.Achievements:- Increase in the time horizon of home delivery planning (daily to weekly frequency),based on implementing a new order scheduling model in Excel.

Purchasing (September 2019 - March 2020)Support to the Senior Buyer in Purchase management of supplies and mine requirements.Generation of purchase orders in Ellipse (ERP).Achievements:- Savings of USD 50,000 for discounts obtained in quotes through negotiation.Warehousing (March 2019 - August 2019)Purchase management of Project goods and services for the warehouse operation. IntegratedManagement System execution. Development in the transportation committee.Achievements:- One week reduction in the delivery of the technical-economic evaluation of the newtransport contract for steel balls and lead and molybdenum concentrates. Saving ofPEN 3 million for the five-year contract.- Proactive participation in the monthly inspections of the Environmental ComplianceIndex, and the respective observations gathering, as part of the environmentalmanagement system.

Tracking on operations and shipping transit (transshipments). Freight rates updating for exportand import services. Trained in the use of Navitrans (ERP).Achievements:- Project approval “Temporary container storage warehouse”. Elaboration of processflowcharts for the procedures of “Entry and exit of containers from the warehouse”,which were part of the deliverables for the new project approval.- Increase on customer satisfaction through the elaboration and delivery on time of the“Status and Ships Arrivals” report from shipments from Callao.- Profit calculation per shipping (purchasing and selling of freights) through the exactregistration of the number of containers loaded in the Navitrans system.

Purchase order management based on quality and price analysis. Supplier tracking andpurchase order delivery scheduling. Reverse logistics.