Concha, an AIM-listed investing company, said Friday that it had suspended trading of its shares on the index as it has not yet implemented its investing policy. The company must either make an acquisition which constitutes a reverse takeover or otherwise implement its approved investing policy by August 9th this year or its shares on AIM will be cancelled. Concha said it is in "advanced negotiations" over two potential investments, and will update the market in the near future.NR