 CALGARY, Alberta, May 03, 2021 GLOBE NEWSWIRE -- NXT Energy Solutions Inc. NXT or the Company TSX:SFD; OTC QB:NSFDF reports that it has filed amended consolidated financial statements for the years ended December 31, 2020, 2019 and 2018 with all instances of the word unaudited having been removed, and clerical errors in two headings having been corrected, as follows: 