When was the secretary system of the board of directors introduced to China?

The secretary system of the board of directors in China originated from 1993 when Chinese mainland state-owned enterprises planned to go public in Hong Kong for financing. As the Hong Kong Companies Ordinance stipulates that "every company must have a secretary", Chinese enterprises began to use the word secretary in Hong Kong law to define the functional personnel of the company secretary. Subsequently, this system was introduced into China stock market, and it has been 20 years since then.