SPB exchange provides access to various markets:
Global securities can be admitted to public trading on the secondary market in Russia without agreement with the issuer. In that case listing can be initiated by the Exchange and the exchange takes responsibility for disclosing information about the issuer.
Today SPB exchange has already listed securities with primary listing on NYSE, NASDAQ, LSE, Frankfurt Stock Exchange, Luxembourg Stock Exchange and Irish Stock Exchange.
Описание скопировано с Yell.ru - https://www.yell.ru/moscow/com/saint-petersburg-exchange_12290479/