The EPA said, the assessment focused on the impact on water usage after TSMC changing its manufacturing process. Li Yu-ming, an evaluation committee of EPA, said that based on TSMC’s report the power usage of the 5-nanometer process will be 10 percent of the current 25-nanometer process, And TSMC promised the waste water will be reduced.

TSMC said that the five-nanometer process is still in development, is a plan for the next two to three years, and the company is going to invest billions of dollars.

And because the changing of TSMC’s manufacturing process, The Tainan Science Park will increase of 50,000 tons of water consumption and 700,000 Kw electricity consumption per day.