一、享有开发区的全部优惠政策:1、区内生产性“三资”企业,其所得税减按15%的税率计征,经营期在10年以上的,自获利年度起,两年免征,三年减半征收。2、允许外商在区内投资兴建机场、港口等能源交通项目,从获利年度起,对其所得税实行前五年免征,后五年减半征收。 First, the enjoyment of all the preferential policies for the zone: 1, the production of productive “three-funded” enterprises, the income tax deducted by 15% tax rate, operating period of 10 years or more, since the profit-making year, two years exemption Levy, reduced by half for three years. 2. Foreign investors are allowed to invest in the construction of energy transport projects such as airports and ports in the region. Exemption of their income tax for the first five years from the profit-making year and half of the next five years will be allowed.