Our stock is traded on the OTCQB under the symbol CTBO.
About the OTCQB
The OTCQB Venture Marketplace is an exchange for US and international companies in the entrepreneurial and development stages. It is an equivalent to the London AIM Market in the UK and the Toronto Stock Exchange Venture Market in Canada.
As of June 30, 2015 the OTCQB had a total market cap of $74.2bn and nearly one thousand active companies listed. In order to be eligible for the OTCQB Marketplace companies must be current in their reporting with the SEC or listed on a qualified international stock exchange. They also need to undergo an annual verification and management certification process with the OTC Markets Group itself. In the words of the OTC Markets Group. These standards provide a strong baseline of transparency, as well as the technology and regulation to improve the information and trading experience for investors.