Anglesey Mining said a blockade by locals at Labrador Iron Mines (LIM), in which it owns a minority stake, had been lifted after five days.
Locals were staging a protest against the Quebec 'resource development plan', also known as Plan Nord.
This economic strategy, launched last year by the government of Quebec, gives the go-ahead for sustainable mining in certain parts of northern Quebec.
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The company said the blockade had restricted road access from the town of Schefferville to the Canadian mine but operations were minimally impacted.
Anglesey has a 26% stake in LIM, which is Canada's newest iron ore producer.
The firm said the barricade has been removed by agreement and without incident
"LIM will continue to work with the residents of Schefferville and the local aboriginal groups to ensure open and honest dialogue to maintain long-term and mutually-beneficial positive relationships with all stakeholders," it said.
