The 777 mine is expected to remain open until the fourth quarter of 2021, according to the latest information from Hudbay.
Daniel Weinerman, a spokesperson for Hudbay said the current 777 mine plan has the mine life extended until 2021.
“A reassessment of the mine plan and achievable mining rates led to a plan where the reserves are fully mined out in 2021,” said Weinerman.
“At this time, we anticipate the 777 mine’s reserves to be depleted in the fourth quarter of 2021 and we are continuing efforts to extend the mine.”
According to Weinerman, the 777 mine engineering and geology team is conducting an assessment to determine whether there are additional ores that could be mined profitably.
Resource estimates from Jan. 1, 2018 showed there were about 3.8 million proven and probable tonnes of mineral reserves at the 777 mine.
Hudbay announced at the beginning of 2017 that the 777 mine was coming to the end of its lifespan. In April 2017, Hudbay confirmed that 777 was expected to close in late 2020, after previously being vague about whether the mine would close in 2019 or 2020. At the time, resource estimates showed 4.47 million proven and probable tonnes of ore. It was reported that the closure of the mine would prompt the closure of the mill, and that the zinc plant could remain open at a reduced capacity, dependent on sufficient cost savings being secured.
The existing contract between Hudbay and the unions expires in 2020. Weinerman said Hudbay maintains open and transparent communications with stakeholders as to its business plan.
Elsewhere, Reed Lake mine is expected to stop production in late July, at which point closure and remediation efforts will begin.
“Reed was built with its closure in mind,” said Weinerman.
“It is within the boundary of a Manitoba provincial park, so when the mine closes, we expect to remediate it so that it is indistinguishable from other areas in the park that have been cleared for use as picnic grounds and campsites.”