The Mexican Tax Administration (SAT) has issued Official Letter No. 700-04-00-00-00-2020-108, which was published in the Official Gazette on 9 September 2020. The letter contains an updated list of non-resident digital service providers that have registered under Mexico's new requirements, which generally apply from 1 June 2020. The list, which contained 13 companies in July, now contains 35 c…