legal ground
Article 78 of the Company Law of People's Republic of China (PRC)
The establishment of a joint stock limited company shall have two or more promoters, of whom more than half of the promoters shall have their domicile in China.
Article 79 of the Company Law of People's Republic of China (PRC)
The promoters of a joint stock limited company undertake the preparatory work of the company.
The promoters shall sign a promoter agreement to clarify their respective rights and obligations during the establishment of the company.