[Two departments: Advocate that automobile companies and suppliers establish long-term and stable cooperative relationships and cannot lower supply prices on the grounds of shortening the bill period] On September 7, the General Office of the Ministry of Industry and Information Technology and the General Office of the State Administration for Market Regulation issued a notice on promoting automobile companies to standardize supplier account payments. The notice on optimizing account period management points out that automobile companies are encouraged to establish long-term and stable cooperative relationships with suppliers. The validity period of each contract signed should be no less than one year. The content of the contract should be fair and reasonable, avoid setting unfair terms, and ensure the balance of the rights and interests of all parties. The bottom line of costs, hidden quality and safety risks and other factors cannot be ignored to demand price reductions, and supply prices cannot be lowered on the grounds of shortening the account period. Automobile companies are encouraged to implement systems such as stylized contracts and automatic payment when accounts are due to reduce interference from human factors and improve work efficiency.