Subsidized interest fee refers to the loan interest subsidy provided by the government or financial institutions to encourage enterprises or individuals to invest and consume and to promote economic development. When a borrower is unable to bear the full cost of interest during the loan process, the government or financial institution will provide a subsidized interest fee to reduce the borrower's burden. The interest rate subsidy can be in the form of a direct subsidy or a reduction in the interest rate of the loan, and so on. Interest rate subsidies are used in a wide range of areas, including agriculture, industry, construction, education, health care and so on. In various project bids, the discount fee is also an important factor that can affect the company's chances of obtaining the project.