Plus Tech Co., Ltd.

We, Plus Tech, were established in 1939 (Showa 14) as Kuroya Shoten Co., Ltd.

Established Kuroya Shoten Co., Ltd. in Shinagawa, Kyobashi Ward (now Chuo Ward), Tokyo City.

Name changed to Kuroya Shoten Co., Ltd. Oil Division.

Name changed to Yonezawa Industrial Co., Ltd.

Renamed to the current company name in 1949 (Showa 24).

We were among the first in Japan to start manufacturing and selling soft PVC compound and PVC hoses.

Established Hiratsuka Factory in Ono Town, Nakagō District, Kanagawa Prefecture (now eastern part of Hiratsuka City) and began synthetic resin processing.

Name changed to Plus Tech Co., Ltd.

Headquarters moved to Shinagawa, Chuo Ward, Tokyo.

Headquarters moved to Yaesu, Chuo Ward, Tokyo.

Headquarters moved to 3-4-5 Kyobashi, Chuo Ward, Tokyo.

Capital increased to 100 million yen.

Listed on the Second Section of the Tokyo Stock Exchange.

Established Osaka Sales Office in Naihigashi Town, Higashi Ward (now Chuo Ward), Osaka City.

Capital increased to 200 million yen.

Osaka Sales Office renamed to Osaka Sales Office.

Capital increased to 300 million yen.

Osaka Sales Office moved to Takara Bridge, Higashi Ward (now Chuo Ward), Osaka City.

Capital increased to 600 million yen.

Established Nagoya Branch Office in Chikusa Ward, Nagoya City.

Nagoya Branch Office renamed to Nagoya Sales Office.

Established Nabari Factory in Yawata, Nabari City, Mie Prefecture.

Renamed Osaka Sales Office to Osaka Branch.

Moved Headquarters to 3-2-4 Kyobashi, Chuo-ku, Tokyo.

Established Tsukuba Factory in Ami-machi, Inashiki-gun, Ibaraki Prefecture.

Moved Headquarters to 5-11-13 Kiba, Koto-ku, Tokyo.

Capital participation in Tosco Polyvin Corporation (Batangas, Philippines).

Acquired the factory of Vinicron Co., Ltd. as Namba Office Mitsuike Factory (now Namba Factory).

Moved Headquarters to 1-1 Kousumi no Sato, Ami-machi, Inashiki-gun, Ibaraki Prefecture.

Closed Nagoya Sales Office and merged into Osaka Branch.

Moved Osaka Branch to 3-11-3 Shinmachi, Nishi-ku, Osaka.

Delisted from the Tokyo Stock Exchange Second Section and registered on the Green Sheet Market (price disclosure system) operated by the Japan Securities Association.

Capital increased to 870 million yen.

Moved Osaka Branch to 1-2-6 Dojima-hama, Kita-ku, Osaka.

Renamed Osaka Branch to Osaka Office.

Moved Osaka Office to 4-4-9 Takaraibashi, Chuo-ku, Osaka.

Converted Namba Factory (Yahata Factory) to a warehouse and consolidated production at Namba Factory (Mitsuike Factory).

Abolished the Green Sheet Market system.

Established a shareholder community with Mizuho Securities Co., Ltd. as an operating member.

Dissolved the shareholder community.

Moved Osaka Office to 4-3-8 Awajimachi, Chuo-ku, Osaka.