Valuation and Prioritization of Early-Stage Exploration Projects: a Case Study of Cu–Ag and Au-Mineralized Systems in the Tiltil Mining District, Chile

Engaging Stakeholders in Extraction Problems of the Chilean Mining Industry through a Combined Social Network Analysis‐Analytic Network Process Approach

“…Small and medium-scale mining comprises all those privately owned mines with an extraction capacity of up to 200 tons of "ore" per day. is group's main characteristic is that the smelting and refining processes are carried out by the National Mining Enterprise ENAMI [5,20]. ENAMI is a company for promoting and developing small and mediumsized enterprises in the mining industry of the Government of Chile, which provides them with subsidized payment treatment [5,21].…”

“…is group's main characteristic is that the smelting and refining processes are carried out by the National Mining Enterprise ENAMI [5,20]. ENAMI is a company for promoting and developing small and mediumsized enterprises in the mining industry of the Government of Chile, which provides them with subsidized payment treatment [5,21]. is segment comprises a large group of small miners who adhere to the government's promotion policy, and most of them sell their products to ENAMI's purchasing powers through a tariff system [5,21].…”

“…ENAMI is a company for promoting and developing small and mediumsized enterprises in the mining industry of the Government of Chile, which provides them with subsidized payment treatment [5,21]. is segment comprises a large group of small miners who adhere to the government's promotion policy, and most of them sell their products to ENAMI's purchasing powers through a tariff system [5,21]. Unlike large-scale mining, the demands on small-scale mining in terms of reserves, implementation time, and initial investment are minimal, the capacities and infrastructure needs are moderate, and the employment per unit of production is high.…”

“…However, these activities have been carried out in the same way for more than a century in Chile, where traditional exploitation and treatment practices are difficult to give up. Several other problems are also frequent, e.g., the lack of innovation in their processes and the error in estimating mineral deposits' value [5].…”

Portfólio Em Exploração De Petróleo Sob Incertezas: Condições Para a Guerra De Atrito E a Barganha Cooperativa

“…O Valor Monetário Esperado (VME) é uma medida ponderada do Valor Presente Líquido (VPL) pelo fator de chance do projeto (FC). Essa medida de valor é amplamente aceita em projetos exploratórios (FAÚNDEZ et al, 2020;DIAS, 2004;ROSE, 1999, Cap. 3).…”