Chusei Kogyo Co., Ltd.

Established Chusei Kogyosho at 4-17 Yajie-cho, Minami-ku, Nagoya.

Built a new factory at 1-57-1 Higashimatabei-cho, Minami-ku, Nagoya.

Changed the company name to Chusei Kogyo Co., Ltd.

Built Building 1 at the Yamanashi Factory.

Started ultra-precision machining and precision sheet metal processing of semiconductor manufacturing equipment components.

Built Building 2 at the Yamanashi Factory and separated the machine shop from the sheet metal shop.

Added machinery and completed an employee cafeteria.

Built Building 3 at the Yamanashi Factory.

Began designing and developing in-house sputtering equipment.

Obtained ISO 9001 certification.

Set up an assembly area on the first floor of Building 3 at the Yamanashi Factory.

Began contract assembly of LCD manufacturing equipment.

Built Building 5 at the Yamanashi Factory and closed the Nagoya Factory.

Moved the head office to Yamanashi and consolidated operating locations.

Transitioned to ISO 9001:2000.

Discontinued the design and development business for in-house equipment.

Kicked off preparations to obtain JIS Q 9100 aerospace quality management system certification.

Added machinery to Building 3 and reduced contract assembly of LCD manufacturing equipment.

Added machinery to Building 3.

Obtained JIS Q 9100 certification, the first company in Yamanashi to be certified by JQA.

Added machinery to Buildings 1 and 3.

Added one five-axis machine and one horizontal lathe to Building 2.

Transitioned to JIS Q 9100:2008.

Added one five-axis machine and two vertical machining centers to Building 2.

Added one five-axis machine to Building 3.

Added one five-axis machine, one vertical lathe, and one horizontal lathe to Building 2.

Added one vertical machining center to Building 2.

Replaced and expanded machinery in Buildings 2 and 5, including five-axis and vertical machining centers and lathes.

Expanded the assembly area in Building 3 and enlarged the parking lot.

Replaced machinery in Building 2 and disposed of aging equipment in Building 3.

Replaced machinery in Building 1.

Replaced machinery in Building 5 and expanded the 200-square-meter Class 1,000 cleanroom.

Added Dobel Co., Ltd. in Hokuto, Yamanashi, to the group.

Replaced and added machinery in Buildings 1 and 2, including a horizontal multitasking machine.

Renovated the Building 5 office.

Constructed Building 6 in March 2024.

Built the Nirasaki Factory in November 2024.