The continuous mining was a technology developed by Codelco and a firm called IM2.
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The continuous mining method is an improvement on the block caving method of underground mining technology.
Encina told Kitco News after his presentation that the continuous mining method allows miners to access more rock, which boosts production.
The delays were caused by new Argentine import restrictions, which the company said has hindered its ability to purchase necessary spare parts in-country to keep all open-pit mining equipment in continuous operation.
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