Has ZERO to do with a reverse--ZERO
For example see RDHL (redhill) where 1 ADR represents 10 shares
So IF RLFT wanted to list on Nasdaq "Capital Mkt"--the min there is $2. So they could set 1 ADR of RLFT to equal 60 common shares of RLFT. That would satisfy the $2 minimum (@ 0.035/share) but there are other requires beside price.
What Is an ADR?
ADRs are issued by U.S. depositary banks, and each one represents one or more shares of a foreign stock or a fraction of a share. When you own an ADR, you have the right to obtain the foreign equity it represents, although most U.S. investors find it easier to own the ADR.
For example, let's say that shares of CanCorp (a fictitious Canadian company) sell on the Toronto Stock Exchange for C$5.75 (US$5). A U.S. bank buys a number of shares and sells ADRs at a ratio of 2:1. Therefore, each ADR represents two shares of CanCorp and thus should sell for US$10.
ADRs are held in the vaults of the U.S. banks that issue them. However, the shares they represent are actually held in the home country of the foreign-based corporation by a representative of the U.S. depositary bank. ADRs simplify the process of exchanging foreign shares: since it is only the receipts that are traded, investors do not need to worry about any exchange rate differences or the need to open special brokerage accounts. Furthermore, ADRs entitle investors to all dividends and capital gains.