WSP Global Investor Presentation — May 2019

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2Cautionary statement

The Corporation reports itsfinancial results inaccordance with IFRS .However, thefollowing non- IFRS measures areused by

the Corporation :net revenues; EBITDA ;adjusted EBITDA ;adjusted EBITDA margin ;days sales outstanding (orDSO) and net

debt toadjusted EBITDA ratio .Additional details forthese non- IFRS measures can befound inWSP’s MD&A, which isposted

onWSP’s website atwww. wsp .com, and filed with SEDAR atwww .sedar .com .Management believes that these non-IFRS

measures provide useful information toinvestors regarding theCorporation’s financial condition and results ofoperations as

they provide key metrics ofitsperformance .These non- IFRS measures are not recognized under IFRS, donot have any

standardized meaning prescribed under IFRS and may differ from similar computations asreported byother issuers, and

accordingly may not becomparable .These measures should not beviewed asasubstitute forthe related financial

information prepared inaccordance with IFRS .Non -IFRS measuresCertain information regarding WSP contained herein may constitute forward -looking statements .Forward -looking

statements may include estimates, plans, expectations, opinions, forecasts, projections, guidance orother statements that are

not statements offact.Although WSP believes that the expectations reflected insuch forward -looking statements are

reasonable, itcan give noassurance that such expectations will prove tohave been correct .

These statements aresubject tocertain risks and uncertainties and may bebased onassumptions that could cause actual

results todiffer materially from those anticipated orimplied inthe forward -looking statements. WSP's forward -looking

statements areexpressly qualified intheir entirety bythis cautionary statement. The complete version ofthecautionary note