When a company is under either PINK SHEETS(PK) or BULLETIN BOARDS(OB,BB) as a tier, They can simply jump right to any of the OTC's. It all depends on the company's structure. In our case, EPGL is planning to manufacture and sell medical devices internationally. In order to do that, they need to belong to tier OTCQX(international business).
There is some guidelines inorder to get to OTCQX from PINKSHEETS. I believe EPGL would have to complete atleast three months or 90 days of trading where their stocks can't trade below .10(DIME) at anytime during the quarter. Once they have shown that their company is a strong company because PPS has stayed above .10, then they can begin the process of converting over to OTCQX.
Now EPGL did say during Q&A that they anticipate on eventually moving up to tier NASDAQ or NYSSE. Inorder to get to this step, EPGL will have to really prove they can survive in the high dollar amounts while in tier OTCQX.