Shares of L&L Energy, the Seattle operator of Chinese coal mines whose former CEO is awaiting trial on federal securities fraud charges, fell more than 80 percent Monday after trading for the first time in five months.

Nasdaq halted trading in the company’s stock in November, citing a need for unspecified information from the company.

Last week L&L voluntarily delisted from Nasdaq so its shares could trade over the counter. From its previous price of $1.68, the stock dropped $1.47 or 87.5 percent to close at 21 cents.