No, things produced in-country are taxed bit by bit along the production and transport chain, each time someone takes the thing and "adds value" to it. It's a value-added tax. Imported things are taxed all at once when imported. In the end it's the same amount of tax.
You could say imports are subject to a sales tax exactly equal to the value-added tax on domestic products. Sort of.
Honestly, I don't quite remember the details of what happens when you export an item. There won't be a sale to collect VAT on, but you'll have paid prices including VAT to your suppliers and there is something about tax credits. But at the end of the day it's a conceptually more complex sales tax but when you're working with it it's simple enough.