 SHANGHAI, June 3, 2021 PRNewswire -- CooTek Cayman Inc. NYSE: CTK CooTek or the Company, a global mobile internet company, today reported unaudited financial results for the first quarter ended March 31, 2021. First Quarter 2021 Highlights Net revenue was US81.6 million, a decrease of 24 from US107.0 million during the same period last year due to the restructuring of portfolio products. 