"Notice on Several Issues Concerning Standardizing the Capital Exchange between Listed Companies and Related Parties and External Guarantee of Listed Companies" stipulates that
(1) A listed company shall not provide guarantee for the controlling shareholder and other related parties or unincorporated units or individuals holding less than 50% of the shares of the company.
(2) The total external guarantee of a listed company shall not exceed 50% of the net assets of the consolidated accounting statements in the latest fiscal year.
(3) The articles of association of a listed company shall stipulate the examination and approval procedures for external guarantee and the credit standard of the guaranteed object. The external guarantee must be signed by more than two-thirds of all members of the board of directors or approved by the shareholders' meeting; It shall not directly or indirectly provide debt guarantee for the guaranteed object whose asset-liability ratio exceeds 70%.
(4) The listed company's external guarantee must require the other party to provide counter-guarantee, and the provider of counter-guarantee should have the actual capacity.
(5) A listed company must strictly abide by the relevant provisions of the Listing Rules and the Articles of Association, earnestly fulfill its obligation to disclose information on external guarantees, and must truthfully provide all external guarantees of the company to certified public accountants as required.
(VI) Independent directors of listed companies shall make special explanations on the accumulated and current external guarantees of listed companies and the implementation of the above provisions in their annual reports, and express their independent opinions.
You can also read the Notice on Regulating the External Guarantee Behavior of Listed Companies.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.