Printto Magicbeat is a voicebank originally made for UTAU. He recieved a Chinese NIAONiao voicebank in 2016.
His test demo can be found here.
His voicebank is available for download here.
As seen in the demo, there are some pronunciation issues (e.g. "耳[er]" being pronounced like the English sound "ir" instead of "ar") and it is missing the 用 (yong) phoneme.
PRINTmov allows the voicebank to be imported into UTAU manually. An example of his NIAONiao voicebank in UTAU can be seen here.