No notes according to the filing with a DTC under 5M..
BSTO .04
https://www.otcmarkets.com/otcapi/company/financial-report/386524/content B. Promissory and Convertible Notes Indicate by check mark whether there are any outstanding promissory, convertible notes, convertible debentures, or any other debt instruments that may be converted into a class of the issuer’s equity securities: No: X