KYOKUTO KOWA CORPORATION

Founded on June 17, 1939, Kyokuto Kowa Co., Ltd.

Changed corporate name to Kōa Airplane Industries Co., Ltd.

Changed corporate name to Kōwa Industrial Co., Ltd. and began manufacturing PC sleepers

Established: Showa 23 (1948) March

Founded Railway Gravel Industry Co., Ltd. in Ōsuka-cho, Hiroshima City; performed track bed maintenance work

Relocated headquarters to the former site of the Hiroshima City Niwa no Sato Cavalry; opened Okayama branch (now Okayama Sales Office); established Hiroshima RC plant (closed 1953); registered with the Minister of Construction

Track construction commenced, registered by the Minister of Construction

Re-implementation rights agreement for Fresine method

Opened Ōtake PC plant (closed 1976); began manufacturing PC sleepers; first PC bridge construction at Suwa Station area (Nagano Prefecture); first PC building construction at Hamamatsu-cho Station platform roof (Tokyo)

Our PC bridge first construction at Enokihashi (Fuchu Town) – name change to Kyokuto Kogyo Co., Ltd.

First contract for Posten construction at Minato Bridge (Kochi Prefecture) – name change to Kowa Concrete Co., Ltd.

First Posten construction at Akagawa Bridge (Akita Prefecture)

Osaka office opened (now Osaka branch); Nagoya office opened (now Nagoya branch)

Toyohashi factory opened (closed in 2001)

Fukuoka Sales Office Established (now Fukuoka Branch) Set up Jōzu PC Factory Osaka Sales Office Established (now Osaka Branch)

Otsuki Factory Established (closed 2003) Start of Tokai Shinkansen PC Machida Production

Tokyo office opened (now Tokyo branch)

Supplied Shinkansen PC sleepers; Kobe factory opened (closed in 2005)

MDC method implementation agreement; Ueno-hara factory opened (closed in 1969)

Sendai branch office opened (now Sendai office)

West Yodo First District PC girder construction

Established Kyokuto Shakishi Co., Ltd. (closed in 1995); Ishiwaka factory opened (closed in 1969)

Sagamihara Factory Closed Architecture Division Independent Establishment of Kōwa Architectural Industry Co., Ltd. (business ended 1987)

Headquarters Relocation Higashiku, Hiroshima City Mitsumachi Sanyo Shinkansen Nanano BV External PC Beam Production and Installation Work Start of Sanyo Shinkansen Track Slab Production

Prebeam Construction Method Implementation Rights Agreement

Start of Sanyo Shinkansen Track Slab Production Hiroshima Factory Established (closed 1998) Tsurumi-style Box Calvert Implementation Rights Agreement

Hiroshima Branch Established Sagamihara Equipment Warehouse Established (closed 1991)

Tokyo office opened (now Tokyo branch)

Box Calvert construction start, establishment of related company Kyokuto Marine Development Co., Ltd. (closed 1979)

Shiraishi factory opened (closed in 1980); Fukushima factory opened (closed in 1980)

Acquisition of overseas construction (Iraq expressway)

Opening of Oita Factory and Yamanashi Sales Office

Extrusion method order

Order for Dividark Method

Niigata office opened

Extrusion method order

Order for Mobile Support Work, Opening of Nagano Sales Office, Order for Zhang Construction Method

Order for Cable-Stayed Bridge, Establishment of Related Company Kokujo Techno Co., Ltd. (Closed in 2009)

Order for Egg-Shaped Digesting Tank, Opening of Ueno Hara Equipment Center (Closed in 2005)

Establishment of First-Class Architect Office, Joint investment to establish Related Company Kei-N Information Systems Co., Ltd.

Shizuoka office opened

Registration of Construction Consultant, Establishment of Related Company Kyokuto Takamura Factory Co., Ltd. (now Kyokuto Takamura Co., Ltd.)

Hiroshima branch ISO 9001 certification acquired

Listing on Hiroshima Stock Exchange, Osaka Branch, Tokyo Branch, Fukuoka Branch obtained ISO9001 certification, Opening of Iko Factory (Closed in 2001)

Listing on Tokyo Stock Exchange Second Section, Opening of Hiroshima Sales Office

Headquarters obtained ISO9001 certification, Opening of Nara Sales Office, Independent Repair Division, Establishment of Co-Watenco Co., Ltd. (Business ended in 2005)

Transfer of shares to Holding Company (株) BR Holdings. Holding company listed on Tokyo Stock Exchange Second Section, Kokujo Industrial delisted. Company-wide ISO9001 certification obtained, Opening of Shizuoka Factory

Start of Taiwan Shinkansen track slab production (first overseas project)

Transfer of shares to Holding Company (株) BR Holdings

Company-wide ISO14001 certification obtained, Registration of Construction Consultant, Opening of Fukuoka Sales Office, Opening of Hachinohe Factory, Opening of Omuta Factory

Name changed to Kokujo Kowa Co., Ltd. due to merger

Absorption merger of BR International Co., Ltd.