Composed of 20 companies categorized into four groups.

Advanced development and manufacturing technology
● Keylex Corp.
● Kurashiki Kako Co.,Ltd.
● Daikyo Nishikawa Co.,Ltd.
● Visteon Japan
● Nanjo Sobi Kogyo Co.,Ltd.
● Japan Climate Systems Corp.
● ArvinMeritor Japan K.K.
● Hiroshima Aluminum Industry Co.,Ltd.
● Kolbenschmidt K.K
● Microtechno Corp.
● Yumex Corp.
● Yoshiwa Kogyo Co.,Ltd.
● YNS Inc.

Just On Time distribution across land, sea and air
● Malox Co.,Ltd.
● Mazda Processing Chugoku Co.,Ltd.

Wide areas of engineering
● Toyo Advanced Technologies Co.,Ltd.
● Mazda E&T Co.,Ltd.

Services that maintain and improve people's living environment
● Sanfecce Hiroshima Inc.
● Mazda Ace Co.,Ltd.