YAC Systems Singapore Pte Ltd

Established HYAC Corporation in Akishima City, Tokyo with a capital of 2.1 million yen.

Y.A.C. Co., Ltd. was established at Akishima, Tokyo with a capital of 2.1 million yen.

Entered the industrial packaging machinery industry. Began developing and selling packaging machines for the food industry and for the cleaning industry.

Penetrated into industrial package business and started to sell packaging equipment to food industry and cleaning industry.

Relocated headquarters to Tachikawa City, Tokyo.

Corporate head quarter moves to Tachikawa City, Tokyo.

Akishima factory completed in Akishima City, Tokyo.

Builds Akishima factory at Akishima-Shi, Tokyo.

Entered the semiconductor industry.

Penetrated into semiconductor business.

Headquarters factory completed. Relocated headquarters to Akishima City, Tokyo.

Built a headquarter factory at Akishima.

Developed and began selling POS systems for liquor stores.

Developed and started to sell POS system for liquor store.

Entered the magnetic disk industry.

Started magnetic memory disk business.

本社工場（東京都昭島市）増築工事竣工。

Corporate main factory extends floors.

Established a representative office in Santa Clara, California, USA.

Opens California Representative Office at Santa Clara, California.

Established a Technical Center in Akishima City, Tokyo.

Builds Technical Center at Akishima City, Tokyo.

Registered shares on the over-the-counter market with the Japan Securities Dealers Association (now the JASDAQ Securities Exchange).

Started to traded on counter of Japan Securities Dealers Association (present “JQ”).

Established HYAC Corporation in California, USA with capital of 200,000 US dollars. Established YAC Systems Singapore Pte Ltd in Singapore with capital of 300,000 Singapore dollars.

Established YAC Systems Singapore Pte. Ltd. at Singapore with a capital of S$300 thousand.

昭島第二工場竣工。

Builds the 2nd Akishima Factory.

Merged with Plasma Systems Inc. and acquired the Handler division from M.C. Electronics Inc.

Merged with Plasma System co., Ltd.

Acquired the commercial cleaning machinery business from Fuji Vehicle Co., Ltd. and Fuji Washing Machine Co., Ltd.

Purchases industrial laundry equipment business from Fuji car Mfg group.

Made Yoshimura Precision Machinery Co., Ltd. a consolidated subsidiary and renamed it HYAC Niigata Precision Machinery Co., Ltd. Listed on the Second Section of the Tokyo Stock Exchange.

Acquires and consolidates Yoshimura Machinery Co., Ltd and changes the corporate name to YAC Niigata Machinery Co., Ltd.

Listed on TSE2.

Designated as a First Section company of the Tokyo Stock Exchange.

Listed on TSE1.

Acquired the solar cell business division from SES Co., Ltd.

Purchases Photo Voltaic business from S.E.S. Co., Ltd.

Established a local subsidiary in Korea.

Establishes subsidiary in Korea.

Established the local subsidiary Waai Xin (Shanghai) International Trading Co., Ltd. in China.

Established YAC (Shanghai) International Trade Co., Ltd. in Shanghai, P.R.C.

Made Denko Co., Ltd. a consolidated subsidiary.

Acquired and consolidated Denko Co., Ltd. and changed name into YAC Denko Co., Ltd.

Renamed Denko Co., Ltd. to YAC Denko Co., Ltd.

DENKO Co., Ltd. changes corporate name to YAC DENKO Co., Ltd.

Made Kokusai Denetsu Kogyo Co., Ltd. a consolidated subsidiary, renamed YAC International Electric Heating Co., Ltd.

Acquired and consolidated Kokusai Dennetsu Co., Ltd and changed name into YAC Kokusai Dennetsu Co., Ltd.

Acquired and consolidated Ohkura Electric Co., Ltd.

Established YAC Dastech Co., Ltd.

Established YAC Dastech Co., Ltd.

Made YAC Feton Co., Ltd. a consolidated subsidiary.

Acquired and consolidated Pheton Co., Ltd. and changed name into YAC Pheton Co., Ltd.

Established Shaoxing Wei Ai Xin Electronics Equipment Co., Ltd.

Established Shaoxing Weiaixin Electronic Equipment Co., Ltd.

Made Nihon Garter Co., Ltd. a consolidated subsidiary.

Acquired and consolidated Nihon Garter Co., Ltd.

Established Taiwan Wei Ai Xin Technology Co., Ltd. as a local subsidiary in Taiwan.

Established T.Y.A.C.CORP.

Absorbed YAC Feton Co., Ltd. into a merger.

Merged with YAC Phoeton Co., Ltd.

Acquired shares of Miyuki Elec Co., Ltd. (now YAC Elec Co., Ltd.) and made it a consolidated subsidiary.

Acquired and consolidated Miyuki Elecs Co., Ltd.

Acquired the Ion Beam Application Equipment business from Hitachi Ibaraki Technical Service Co., Ltd.

Acquired ion beam application equipment manufacturing business from Hitachi Ibaraki Technical Service Ltd.

Transitioned to a holding company system and changed the company name to YAC Holdings Co., Ltd.

Transition to holding company system and changed name to Y.A.C. HOLDINGS CO., LTD.

Completed the Fuji Factory in Minami-Torrie District, Yamanashi Prefecture.

Built Fuji factory at Minamitsuru-Gun, Yamanashi.

Divided 13 consolidated subsidiaries into four business areas and initiated a business unit system.

Started Business Unit system by dividing 13 consolidated companies into 4 business field.

Acquired shares of Daiichi Co., Ltd. (Sayama City, Saitama Prefecture) and made it a consolidated subsidiary.

Acquired shares of Daiichi Co., Ltd. (Sayama, Saitama) and made it a consolidated subsidiary.

Merged YAC Garter Co., Ltd. with Daiichi Co., Ltd. and abolished the business unit system.

YAC Garter Co., Ltd. (surviving company) merged with Daiichi Co., Ltd. (disappearing company).

Terminated business unit system.

Merged YAC Denko Co., Ltd. (surviving company) with YAC International Electric Heating Co., Ltd. (dissolved company).

YAC Denko Co., Ltd. (surviving company) and YAC Kokusai Dennetsu Co., Ltd. (disappearing company) merged.

Transitioned from the First Section of the Tokyo Stock Exchange to the Prime Market.

Moved from the First Section of the Tokyo Stock Exchange to the Prime Market.

Merged YAC Machinery Co., Ltd. with YAC Niigata Precision Machinery Co., Ltd.

Y.A.C. Machinery Co., Ltd. (surviving company) and YAC Niigata Machinery Co., Ltd. (disappearing company) merged.

Merged YAC Denko Co., Ltd. with YAC Technologies Co., Ltd.

Acquired shares of JE International Co., Ltd. and GD Tech Co., Ltd., and made them consolidated subsidiaries.

YAC Denko Co., Ltd. (surviving company) and Y.A.C. Technology Co., Ltd. (disappearing company) merged.

Acquired shares of JE International Corporation and GD tech Co., Ltd. and made them consolidated subsidiaries.

Signed a capital partnership agreement with LINUS BIOTECHNOLOGY, INC. of the United States.

Concluded an agreement on capital alliance with Linus Biotechnology Inc.

Ohkura Electric Co., Ltd. acquires all shares of Hosyo-Sangyo Inc. and makes it a consolidated subsidiary.

Established YAI SHI BIO Co., Ltd. and made it a consolidated subsidiary.

YAC BIO Inc. is established and becomes a wholly owned subsidiary.

Acquired a portion of the shares of TT Holdings Co., Ltd. and made it a consolidated subsidiary.

Partial acquisition of TT Holdings, Inc. shares, which owns 100% of the shares of Topcon Technohouse Corporation, to make it a consolidated subsidiary.

Topcon Techno House Co., Ltd. changed its name to Techno Optis Co., Ltd.

Topcon Technohouse Corporation changed its name to TechnoOptis Co., Ltd.

Acquired additional shares of TT Holdings Co., Ltd. and made it a wholly-owned subsidiary.

Acquired additional shares of TT Holdings, Inc., which owns 100% of the shares of TechnoOptis Co., Ltd. to make it a wholly owned subsidiary.

Merged Techno Optis Co., Ltd. with TT Holdings Co., Ltd.

TechnoOptis Co., Ltd. (surviving company) and TT Holdings, Inc. (disappearing company) merged.

Made Sanwa Electric Instruments Co., Ltd. / Sanwa Tesmecc Co., Ltd. subsidiaries.

Acquisition of Sanwa Electric Instrument Co., Ltd. and Sanwa Tesmex Co., Ltd. as subsidiaries.