The joint liability of shareholders for capital increase is: if they fail to fully fulfill their capital contribution obligations, the company's creditors may require shareholders to bear joint liability for the company's debts. According to the second paragraph of Article 28 of the Company Law, if a shareholder fails to pay his capital contribution in accordance with the provisions of the preceding paragraph, he shall be liable for breach of contract to the shareholder who has paid his capital contribution in full on schedule. Paragraph 2 of Article 13 of the Supreme People's Court's Provisions on Several Issues Concerning the Application of the Company Law of People's Republic of China (PRC) stipulates that the people's court shall support the creditors of the company who request the shareholders who have not fulfilled their capital contribution obligations or have not fully fulfilled their capital contribution obligations to assume supplementary responsibilities for the outstanding part of the company's debts within the scope of outstanding principal and interest; Shareholders who fail to perform or fully perform their capital contribution obligations bear the above responsibilities, and if other creditors make the same request, the people's court will not support it.

Legal objectivity:

Provisions of the Supreme People's Court on Several Issues Concerning the Application of the Company Law of People's Republic of China (PRC) (III) Article 14 If a shareholder withdraws his capital contribution, the company or other shareholders request him to return the principal and interest of his capital contribution to the company, and other shareholders, directors, senior managers or actual controllers who assist him in withdrawing his capital contribution shall bear joint liability, the people's court shall support him. If the creditor requests the shareholder who withdraws his capital contribution to bear supplementary liability for the outstanding part of the company's debt within the scope of principal and interest of the withdrawn capital contribution, and other shareholders, directors, senior managers or actual controllers who assist in withdrawing his capital contribution bear joint liability, the people's court shall support it; The shareholders who have withdrawn their capital contribution have assumed the above responsibilities, and if other creditors make the same request, the people's court will not support it.