Nov 21 (Reuters) - SNC-Lavalin Group Inc SNC.TO
* SNC-Lavalin announces private offering of $300 million of unsecured debentures
* SNC-Lavalin Group Inc - priced an offering of $300 million aggregate principal amount of 2.689% series 1 unsecured debentures due November 24, 2020
* SNC-Lavalin Group Inc - intends to use net proceeds of offering to repay certain indebtedness outstanding under its existing main credit agreement