I believe they are still on the OTCQB, as per TDAMERITRADE.
OTCQB is part of the OTC group which includes Pink sheet tier(OTCQB is the second tier):
THE pink sheets are the lowest tier: OTCPK These are branded as the Pink OTCs.
Pink Sheet Markets & Listing Requirements
OTCQX
This is the premium tier. The best-of-the-best pink sheets reside here. Companies don’t need to register or report to the SEC. Instead, they must report financial information to the OTC Markets Group. These companies must be operational. That means no shell companies, bankruptcies, or penny stocks allowed.
OTCQB
This is a lower-level tier. Companies must have an annual certification with the OTC Markets Group. They’re also required to keep up-to-date reporting on their finances. But it’s not as stringent as OTCQX.
OTCPK
These are branded as the Pink OTCs. These are the lowest tier of all the pink sheets. There are no standards or reporting required. This tier includes shell companies, bankruptcies, and true penny stocks. This is the Wild West of the pink sheets.
These companies don’t have to be transparent with their finances. They don’t need to provide periodic reports or information to the SEC. The reporting status for OTCPK stocks is noted on the OTC Markets Group website. This is listed as one of the following: