A B.C. company behind a tailings spill earlier this month has signed an agreement with a First Nation to review the tailings facility in a separate project.

Imperial Metals expects to open its Red Chris gold and copper mine, located in northwestern B.C., later this year.

But the company has faced increased scrutiny after a tailings dam at its Mount Polley mine in central B.C. failed, releasing millions of cubic metres of waste water and silt into several lakes and rivers.

Klabona Keepers blockade - Red Chris mine access road

The Klabona Keepers began blockading the road to Imperial Metals' Red Chris mine site south of Iskut, B.C. on Aug. 8. (Klabona Keepers/Facebook)

Imperial Metals says it has signed an agreement with the  Tahltan Central Council that will see the company pay for an outside engineering firm, chosen by the band, to review the Red Chris  tailings facility.

The company says it has agreed to respond to any issues identified by the review.

A group of Tahltan members known as the Klabona Keepers had started a blockade of the Red Chris site in response to the Mount Polley spill, but a spokeswoman for the group says the blockade has ended with the new agreement