Legal analysis: There is no specific legal provision. The contract shall be kept for at least 2 years from the date of completion of performance, which is basically not shorter than the limitation of litigation for contract disputes; The unit archives should be divided into three fixed periods: long-term, short-term and permanent. Some important files are formed after the establishment of the unit and need to be kept for at least 2 years after the change or dissolution of the unit.

Legal basis: provisions on the filing scope and file retention period of enterprise documents and materials.

Article 7 The storage period of enterprise archives is defined as permanent and fixed, and the fixed period is generally divided into 30 years and 10 years.

Eighth permanent custody of enterprise management files mainly include:

(a) documents and materials formed in the process of enterprise establishment, merger, division, restructuring, listing, dissolution, bankruptcy or other changes, and documents and materials on the composition, change, convening, performance of duties and safeguarding rights and interests of the board of directors, board of supervisors and shareholders' meeting of the enterprise;

(2) Certification materials for the registration, evaluation and certification of enterprise property rights, certification materials for the transfer, sale, mortgage, lease, license, change and protection of property rights, and certification materials for foreign investment; Documents and materials such as accounting, confirmation, transfer and change of enterprise capital, and documents and materials of enterprise financing;

(3) The instructions, reports, statements and their replies to relevant authorities and higher-level competent units, the important documents and materials issued by relevant authorities and higher-level units that need to be handled by enterprises, and the important decisions made by trade associations and intermediaries to enterprises.

Important documents such as auditing, notarization and adjudication, and important contracts, agreements and supplementary agreements between enterprises and other organizations and individuals;

(four) enterprise development planning, strategic decisions, major reforms, annual plans and summary documents, internal management systems, regulations, methods and other documents;

(5) Important documents and materials on the evolution of enterprise institutions and human resource management; Other important documents and materials related to the rights and interests of the employees of this enterprise; Documents and materials for the construction of enterprise culture;

(6) Important documents and materials on the operation and management of this enterprise;

(seven) the important documents and materials of the production technology management of this enterprise;

(eight) important documents and materials of enterprise administration;

(nine) the important documents and materials of the party-mass work in this enterprise;

(ten) the news media's publicity and reports on important activities, major events and typical figures of this enterprise;

(11) speeches, inscriptions, instructions, audio recordings, video recordings, photos, enterprise work reports and other important documents and materials made by the leaders of relevant organs and higher-level competent units, social celebrities and other important guests when visiting the enterprise; Enterprises participate in the country and society.

Important documents and materials of major events, and important documents and materials formed by employees of the enterprise participating in congresses at or above the provincial level, such as the Party, Youth League, trade unions, people's congresses and CPPCC;

(12) Reports, requests for instructions, replies and other documents and materials submitted by the directly affiliated units, subsidiaries, holding companies, shares and overseas enterprises and institutions of this enterprise on important matters.