While the issue isn't serious enough to require complete scrapping of the affected wafers, it has significantly dropped down the company's yield - the percentage of parts etched onto the wafer that actually work as expected. In statements to Business Next, TSMC senior director Sun Youwen is quoted as stating that the issue will not affect the company's current financial forecast. Youwen also explains that it will be contacting its supplier - thought to be Shin-Etsu, JSR, or Dow Chemical - for compensation while increasing production so that its own customers can be put back on track as soon as possible. TSMC has not detailed exactly which products on its 12nm and 16nm production lines were affected, but known customers include Nvidia, Huawei's HiSilicon division, and MediaTek. The issue is the second production setback to hit TSMC in the last year, following a virus infection in August 2018 that shut down several of the company's plants for disinfection.