 SHANGHAI, March 25, 2021 PRNewswire -- CooTek Cayman Inc. NYSE: CTK CooTek or the Company, a fast-growing global mobile internet company, today reported unaudited financial results for the fourth quarter and full year ended December 31, 2020. Fourth Quarter 2020 Highlights Net revenue was US102.4 million, an increase of 48 from US69.0 million during the same period last year. 