The most-traded September copper contract on the Shanghai Futures Exchange fell 1.1% to 69,020 yuan ($10,650.08) a tonne, tracking overnight losses in London.
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Residents near MMG’s Las Bambas mine have blocked a road used to transport the metal after a two-week truce, community leaders said on Tuesday.
Last month, a four-day-long blockade disrupted operations of the mine, which produces about 400,000 tonnes of copper a year.
Peru’s new socialist government said this week it is working with the mining industry on a new approach to community relations to unlock more of the country’s huge mineral wealth.
“All companies are happy, so far,” Minister of Energy and Mines Ivan Merino said in an interview Saturday.
“We all agree that all projects must be given a new social face, that we need a new pact.”
The minister’s conciliatory and pragmatic tone may further ease fears stoked by talk in the election campaign of greater state intervention in natural resources that would stifle investment and future output.
Tense relations between mining projects and often isolated rural communities combined with slow permitting have hampered progress in the industry.
Mining comprises 60% of exports from Peru, primarily for the Chinese market.
(With files from Reuters and Bloomberg)