There was never a voluntary delisting. PWC informed FINRA of the liquidations outcome which was insolvent BioAmber being liquidated for $4.34 mil and leaving all of its creditors impaired to upwards of $100 mil of unpaid debt. With no way of ever repaying the debt as BioAmber was no longer in business for over a year and would never be coming back FINRA ended it for good
Show one insolvent PUBCO liquidated of all assets for pennys leaving all of its creditors impaired coming back years later.