Page 1

SNC LAVALIN FOR IMMEDIATE RELEASE Press Release • • • • • • SNC - Lavalin Reports Third Quarter 2021 Results SNCL Engineering Services revenue of $ 1.5 billion , an organic growth of 2.2 % , or 4.2 % based on constant currency ( 1 ) , compared to Q3 2020 SNCL - Engineering Services Segment Adjusted EBIT ( 2 ) of $ 145.0 million , representing a 9.8 % margin , in line with Q3 2020 Segment Adjusted EBIT to segment revenue ratio ( 3 ) of 9.4 % , 16.3 % and 6.6 % for EDPM , Nuclear and Infrastructure Services , respectively Net income from continuing operations attributable to SNC - Lavalin shareholders of $ 18.6 million , or $ 0.11 per diluted share , compared to a net loss of $ 8.8 million , or $ ( 0.05 ) in Q3 2020 Net income from discontinued operations of $ 582.1 million , which include a gain on disposal of the Oil & Gas business of $ 577.8 million , mainly due to the reclassification to net income of the cumulative exchange differences on translating foreign operations upon disposal of such operations SNCL Engineering Services backlog reached $ 11.1 billion , an increase of 3.7 % compared to September 30 , 2020 ; LSTK construction backlog reduced by $ 235.8 million from the prior quarter Reaffirming outlook of SNCL Engineering Services revenue for full year 2021 to increase by a low single digit percentage , compared to 2020 , and tightening outlook of SNCL Engineering Services Segment Adjusted EBIT to segment revenue ratio ( 3 ) to be between 9.0 % and 9.5 % MONTREAL : October 29 , 2021 - SNC - Lavalin Group Inc. ( TSX : SNC ) , a fully integrated professional services and project management company with offices around the world , today announced its results for the third quarter ended September 30 , 2021 . " I am pleased to share that the Company delivered another quarter of solid performance , building on our year - to - date momentum , and once again led by strong financial results from our SNCL Engineering Services line of business . Across the portfolio , our execution remains sound . SNCL Engineering Services ' strong performance through the first three quarters of the year has been in - line with our expectations , positioning us to achieve our full year financial outlook . At the same time , we continue to progress winding down our remaining LSTK contracts and have reduced the LSTK construction contracts backlog more than 65 % over the last two years , " said lan L. Edwards , President and CEO of SNC - Lavalin Group Inc. " We have established a solid foundation for the Company focusing on our core businesses with an emphasis on delivering revenue growth and positive free cash flow . Our financial performance thus far in 2021 supports the progress we are making and positions us to execute on our " Pivoting to Growth Strategy " . 455 , René - Lévesque Blvd. West , Montreal , Quebec , Canada , H2Z 1Z3 514.393.1000 1