I think it's because they both agreed to cancel the latest round of tariffs and to both lower them to 10%, instead, however the previous 20% imposed by the US (

I think it's because they both agreed to cancel the latest round of tariffs and to both lower them to 10%, instead, however the previous 20% imposed by the US (so-called "fentanyl tariff") is not included, which brings effective levels to 30% and 10%. This means a lower general rate that the US have imposed on Taiwan (32%), btw...