 FERGUS FALLS, Minn.--BUSINESS WIRE--Otter Tail Corporation NASDAQ: OTTR announced today the Board of Directors increased the companys quarterly common stock dividend to 0.39 per share. The increase brings the annual indicated dividend rate to 1.56 per share, an .08 increase over the 2020 rate. The dividend is payable on March 10, 2021 to shareholders of record on February 12, 2021. This 5.4 percent increase demonstrates our strong commitment to our shareholders and shows the confidence 