Same company. EVOMY shares are ADR (depository receipts) .. worth 20 ordinary shares. Enviromision's home is the Australian Stock Exchange under symbol EVM (http://www.asx.com.au/asx/research/companyInfo.do?by=asxCode&asxCode=EVM ). They are also traded on the Frankfurt exchange as ticker E8B (http://xetra.com/xetra/dispatch/en/xetraInstruments/gdb_navigation/trading/20_tradable_instruments/100_Shares/400_master_data?micid=XFRA&isin=AU000000EVM6 ). Maybe EVOMF is the OTC-version of the Frankfurt shares?