From the 10-Q, the last SEC filing: Date: July 22, 2019 /s/ Jung Yong Lee Jung Yong Lee, President and CEO (Principal Executive Officer) Date: July 22, 2019 /s/ William Sawyer William Sawyer, CFO (Principal Accounting Officer) https://www.sec.gov/Archives/edgar/data/1478682/000149315219010947/form10-q.htm