Subscription Receipts 가 무엇인가요?

Fortis Inc. (Fortis or the Corporation) (TSX:FTS) announced today that it has entered into an agreement with CIBC, Scotiabank and TD Securities Inc. (the Underwriters) pursuant to which the Underwriters have agreed to purchase from Fortis and sell to the public 18,500,000 Subscription Receipts of the Corporation (the Offering) for a purchase price of $32.50 per Subscription Receipt (the Purchase Price). The Underwriters will also have the option to purchase up to an additional 2,775,000 Subscription Receipts at the Purchase Price to cover over-allotments, if any, during the 30 days following the closing of the Offering (the Over-Allotment Option).
여기서 Subscription Receipts를 한국말로 하면?