[2][3] These 30000 series sets were the final new subway rolling stock to be ordered by the Osaka Municipal Transportation Bureau before it was privatised in 2018.

As of 1 April 2016[update], the Tanimachi Line fleet consists of 13 six-car trainsets and are formed as follows, with car 1 at the Yao-Minami end.

As of 1 April 2016[update], the Midōsuji Line fleet consists of three ten-car trainsets and are formed as follows, with car 1 at the Nakamozu end.

Midosuji Line sets from 31604 onward incorporate a number of design improvements, including new seat covers, LED lighting, and pairs of wide-screen LCD passenger information displays above the doorways.

Changes from the 30000 series include a lower center of gravity, yellow-and-turquoise seat moquette, improved accessibility, and onboard air purifiers.