 CALGARY, Alberta, April 28, 2021 GLOBE NEWSWIRE -- NXT Energy Solutions Inc. NXT or the Company TSX:SFD; OTC QB:NSFDF announces it will release its first quarter 2021 financial and operating results for the quarter ended March 31, 2021, on Tuesday, May 11, 2021 after market close. A conference call to discuss the first quarter 2021 results will be held on Wednesday, May 12, 2021 at 4:30 p.m. Eastern Time 2:30 p.m. Mountain Time. 