The purpose of the Hong Kong Equal Treatment Act is to ensure that Hong Kong is treated the same as mainland China by the United States government. It aims to impose sanctions on individuals who undermine democracy and human rights in Hong Kong. The key provisions of the Act include a prohibition on any special treatment for Hong Kong compared to China. It also mandates that the President of the United States impose sanctions on foreign individuals who are found to be involved in actions that harm democracy or human rights in Hong Kong.