Gunpowder Capital Corp. (GNPWF: OTCQB) | Supplemental Information Fri, Sep 13, 2019 05:08 - Gunpowder Capital Corp. ( GNPWF : OTCQB) released their Supplemental Information concerning Letter From Former Auditor. To read the complete report, please visit: http://www.otcmarkets.com/financialReportView...&id=230292 .