The secretary may enter into reciprocal agreements with the appropriate authority of any other state for the purpose of exchanging information with respect to charitable organizations, professional fundraising counsel and professional solicitors. Pursuant to such agreements, the secretary may accept information filed by a charitable organization, professional fundraising counsel or professional solicitor with the appropriate authority of another state in lieu of the information required to be filed in accordance with this act, if such information is substantially similar to the information required under this act. The secretary may also grant exemptions from the requirements for the filing of annual registration statements with the department to charitable organizations organized under the laws of another state having their principal place of business outside this Commonwealth whose funds are derived principally from sources outside this Commonwealth and which have been exempted from the filing of registration statements by the statute under whose laws they are organized if such state has a statute similar in substance to the provisions of this act.