More Jetblack Corp. news Jetblack Corp.OTC: JTBK Jetblack Corp. Filed First Quarter 2021 Report, Gross Revenues Increase 375% From Previous Quarter May 19, 2021 · Issued by Jetblack Corp. As issuedPlain English Jetblack Corp. (OTC: JTBK) has released its first quarter 2021 report which can be found at the link provided. JTBK Q1 2021 Report