How many years can foreign contract workers of Beijing Huanya Lidu Co., Ltd. become employees in the establishment?

Nine years. Because the labor law stipulates that a continuous ten-year contract is an open-ended contract, that is, it has been compiled, but in fact many contract workers will change their forms in the ninth year, that is to say, they will sign labor dispatch contracts with other units in the tenth year, so it is difficult to achieve the continuous ten-year contract stipulated by law.