Generally, if a company needs to use much of its earnings for working capital or for capital investments, it will not pay a dividend. Other companies may, as determined by their directors, pay a dividend based on their profits. Common shares normally allow you to vote on certain corporate issues, such as the election of directors. Preferred shares generally do not entitle the holder to vote but do pay a dividend that must be paid before any dividend is paid to holders of common shares. Primary market refers to shares being sold to the public by a broker, usually through an underwriting.
Secondary market refers to the buying and selling of securities already issued.
Full-service brokers provide you with investment advice, analysts' reports and research on companies and industry groups. They charge a commission to cover the cost of these services. I get a lot of calls from brokers promoting mining stocks. Ask for a prospectus of the company and read it carefully so that you have full information on the share issue and the risk of the investment. Through your account at your brokerage firm.