Zheng Lijun: I won’t answer the chip 50% and 50 points. Taiwan Electric has not participated in the negotiations with Taiwan and the United States.

 8:14am, 8 October 2025

The Fifth Round of Taiwan and the United States has just ended. The outside world is paying attention to whether Taiwan's official forces are participating in the debate. Zheng Lijun, the vice president of the Executive Yuan who has just returned to Taiwan from the United States, said today, "I can tell everyone very clearly, no." Regarding Taiwan-US chip production capacity, she reiterated that Taiwan has never promised it and will not answer this condition in the future.

The US tax policy on the other hand came into effect on August 7, with Taiwan's temporary tax rate of 20%, and the fifth round of practical consultations were completed from September 25 to 29. Zheng Lijun and Executive Yuan Trade General Officer Yang Zhenni and Deputy Minister of Economic Affairs He Xun-chan jointly held a reporter's meeting to explain the progress of the Fifth Route's actual consultation.

Regarding the US's introduction of the US chip production capacity statement, Zheng Lijun reiterated today that Taiwan has never promised it, and this is different from the supply chain cooperation plan discussed in the past, and it will not answer this condition in the future.

Zheng Lijun explained that the so-called semiconductor proportion calculation is quite complex. It depends on whether the numerator of the calculation project is different from the denominator. The numerator includes advanced processes, advanced addition mature processes, and denominator also has pure crystalline foundry, or pure crystalline foundry, integrated component manufacturer (IDM).

She said that different combinations calculate different results. Judging from 2024, Taiwan's production value for pure crystal circle foundry and the first-level production process below 5 nanometers will be more than 90%. However, if advanced and mature processes are used, the production value of pure crystal circle foundry is 56%.

Zheng Lijun said that if the denominator is changed to IDM and pure crystalline foundry, the advanced maturity process will account for 27%. The proportion of semiconductor process is calculated in complex, so both parties will not discuss this way.

Regarding whether Taiwan Electricity will participate in the Taiwan-US negotiation process, Zheng Lijun clearly responded, "I can tell everyone very clearly, no."

Extended reading: Zheng Lijun: I have never made a promise to make a chip, and I will not answer this condition. Taiwan tax 32%→20%! They stood on the first line and had to know the three "discussing female power" that they must know