Domestic enterprises engaged in the business in the investment field prohibited by the negative list in the Pilot Free Trade Zone shall issue shares abroad and list them for trading, which shall be examined and approved by the relevant competent departments of the state. Foreign investors shall not participate in the operation and management of enterprises, and their shareholding ratio shall be implemented with reference to the relevant provisions on the management of domestic securities investment by foreign investors. It is forbidden to invest in the exploration, mining and beneficiation of rare earth, radioactive minerals and tungsten. Foreign investors are prohibited from investing in rare earths.