There are quite a number of Yonex models made in China - the Basic series and some of the lower end of Carbonex, ISO and MP series are made in China. They are priced lower than those Taiwan made models.
According to Yonex USA, Made in Japan. NS9000-NS5000 AT900-AT300 MP99-MP45 Cab30ms-Cab21 Made in Taiwan NC Tuff AT-250-AT150 MP-29-MP21 ISO-75MF Cab6800ti Made in China ISO30-ISO-20 Basic B-700df-B500