Just remember BIOAQ sold all their assets and factory plant.
They have nothing. I'm not sure who holds the patents also. Most assets were liquidated.
The only thing Bio Amber is the office in the US. If there is anyone there. BOD resigned. They had to let go the workers at the plant. The point is, if the company is dissolved be default of Chap 15 proceedings, then it is dissolved. There is no Bio Amber. That being the case, who would then make their filings which are due? If the CUSIP is revoked, it will have to be reapplied for but then, who would do that? Stocks are numbered and identified by CIK and CUSIP. If they cannot meet the filings, the SEC might just revoke the registration since there is no company left, and would be in default anyway.
Ask your broker that.
Dragon52