One of my teachers in high school was complaining about Boeing being exempt from Washington state sales tax for the sale of...airplanes. Is that a subsidy? I wouldn't count it as such.
For a company with international sales, sales tax (and VAT) should be handled in the district where the sale occurs, not where the product is manufactured. The big problem with the USA is that it doesn't have a VAT system in place to make it all work out equitably.
In effect maybe, but this isn't considered a subsidy on paper though... from my understanding the distinction is "giving" is a subsidy vs "not taking" is a tax break?