The offering of Common Shares upon the exercise of preemptive rights is being made pursuant to an effective registration statement (including a prospectus) that has been filed with the U.S. Securities and Exchange Commission (“SEC”). Before you invest, you should read the prospectus in that registration statement and other documents that Oi has filed with the SEC for more complete information about the company and the offering of Common Shares upon the exercise of preemptive rights. You may access these documents for free by visiting EDGAR on the SEC web site at www.sec.gov. Alternatively, Oi will arrange to send you the prospectus if you request it by calling toll-free 1-800-628-8536.