MONTREAL -- SNC-Lavalin Group Inc. says it won't be "invited" to negotiate a remediation agreement with federal prosecutors at this time, but it will continue to operate as it has since the RCMP laid charges against the company in 2015.

The Montreal-based engineering and construction company and two of its subsidiaries were charged in February 2015 with fraud and corruption following an RCMP investigation into the their dealings in Libya.

SNC-Lavalin says it continues to defend itself against all charges and is reviewing its option to appeal a decision by Public Prosecution Service of Canada, which has told the company it will not negotiate a remediation agreement.

A conviction could prevent the company from bidding on federal projects. A remediation agreement would permit the company to defer prosecution in exchange for fines, remediation and co-operation.

SNC says it has made many changes -- including changing key personnel and establishing rigorous policies -- since 2012, when the company became embroiled in a series of scandals involving several former executives.