After 50 years of continuous operationOperation, the SPCC Ilo Copper RefineryCopper refinery is carrying out its modernization projectModernization project with the aim of renewing its major equipmentEquipment, which has frequent stops that entail production losses. The project consists of implementing permanent cathode technologyPermanent cathode technology to replace the currentCurrent copperCopper starting sheets technologyTechnology. Project implementation does not consider an increase in production; however, it has been conceptualized so that it is aligned with future expansions. The project has been divided into 5 stages, which include the development of metallurgical tests at industrial level to prove the technical feasibility of the new process. The present work describes the results achieved in the tests, in which cathodesCathode up to 190 kg have been produced maintaining high current efficiencyCurrent efficiency (> 98.0%), with an excellent metallurgical rejection rate due to physical appearance (<1%). The conception of the project and the designDesign of the process have been carried out using the know-how of the technical staff of the Ilo Refinery, who also designed and manufactured a semi-automatic machine for strippingStripping heavy cathodesCathode in the tests stage. The cathodesCathode are being commercialized as a new product (SPCC-ILO-PE), which has the same chemical quality as currently recognized SPCC-ILO copperCopper cathodesCathode.