There have been reports that Japanese NAND

There have been reports that Japanese NAND manufacturer Kiosia is raising its plant utilization rate to 100%. The company is said to invest 6 trillion won, including "government subsidies," to invest in high-tech lines.

If you think about it as simple as possible..
Let's say the government gives a 30% subsidy (1.8 trillion) to an investment of 6 trillion (in fact, Japan is known to provide a 30% subsidy to semiconductor investment).

A 10-year depreciation would save 180 billion won in manufacturing costs (depreciation costs) per year after line operation.  

Depreciation annualized 600 billion (6.8 trillion / 10 years) ----> Depreciation annualized 420 billion (4.8 trillion / 10 years) with subsidies

According to the report analyzed by Deloitte at the request of the Korea Chamber of Commerce and Industry, 30 percent of subsidies will result in about 10 percent cost savings in DRAM, 3-nano foundry and 5-nano foundry based on 300 mm wafer. It is a considerable amount.

We have tax credits for semiconductor investments, but no subsidies. The tax credit has a similar effect to subsidies in that it refunds part of the investment. However, the industry regrets that it is applied only to facility investment (excluding building investment) or that 20% of the refund must be paid as a special agricultural tax.

Competitive countries such as the U.S., Japan, China, and Europe seem to provide tax benefits and subsidies at the same time..
We want subsidies to be discredited, and the industry wants us to make sure that we have tax benefits..