In this task, you need to translate the given English sentence to the French language

When do I not charge GST/HST to Canadian customers?
Quand ne pas facturer la TPS/TVH aux clients canadiens?

What must be done?
Que doit-on faire?

What are the factors driving demand and supply in the sector?

Quels facteurs orientent la demande et l’offre dans ce secteur?

