(a) the name, sex, age, nationality, occupation, work unit and domicile of the party concerned, the name and domicile of the legal person or other organization, and the name and position of the legal representative or principal responsible person;
(2) the request and the facts and reasons on which it is based;
(3) Evidence and its sources, names and residences of witnesses.
Legal basis: Article 2 of People's Republic of China (PRC) Civil Procedure Law The task of People's Republic of China (PRC) Civil Procedure Law is to ensure that the parties exercise their litigation rights, ensure that the people's courts find out the facts, distinguish right from wrong, correctly apply the law, try civil cases in time, confirm the relationship between civil rights and obligations, punish civil violations, protect the legitimate rights and interests of the parties, educate citizens to consciously abide by the law, maintain social and economic order and safeguard the cause of socialist construction.