The memorandum of association is a document that regulates a company's external activities. It defines the purpose, objectives, and scope of the proposed company. The memorandum must include clauses for the company name, registered office location, objectives of the company, share capital structure, and share subscriptions by founding members. The memorandum forms the legal framework for the company and is difficult to alter, requiring a special resolution and government approval. Key information like the company name and objectives cannot be changed without following strict procedures.