| Jun. 1966 | Conditional negotiation between San Yang Metal Industrial Co.,Ltd. and Treasure Island Trading Company (TITC) |
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| Aug. 1967 |
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| Aug. 1967 | The Joint Venture Agreement of the three companies, Sintokogio Ltd.,San Yang Metal and TITC, has been signed.Incorporation Founder :- Sintokogio Ltd.：Yoshiyuki Nagai (President),Yoshio Okada (Director), Yuzuru Nagai (Director)
- San Yang Metal：Chin-Hsian Yan (Chairman of the Board), Chao-Bang Yan (Director)、Chen-Sheng Chiu (Director)
- TITC：Ban-Ying, Chen (Chairman of the Board)
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| Nov. 1967 | Establishment of the joint venture is approved by Taiwan Government. |
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| Feb. 1968 | Foundation General Meeting was held. Paid-up Capital was NT$ 100 Million. Mr. Chin-Hsian Yan was appointed as the chairman of the Board, and Mr. Chao-Bang Yan as the executive director. Investment Ratio：Sintokogio Ltd. : 51％、San Yang Metal : 33％、TITC : 16％ |
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| Mar. 1968 | Establishment of the joint venture is approved by the ministry of Economy. This day became our founding anniversary. |
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| Mar. 1985 | Nagai Foundation was established.（later was changed as Nagai .Yan Educational Foundation） |
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| Mar. 1994 | Mr. Ying-Tzung Yan was appointed as the chairman of the Board. |
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| Oct. 1994 | Mr. Chao-Bang Yan won Nagai Award. |
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| Jan. 2004 | Jiangsu Taishintong Machinery Technology Co., Ltd. was found at Wuxi city, Jiangsu province, China. |
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| Mar. 2013 | Founding 45th anniversary (Cosmos Hotel Taipei) |
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| Oct. 2013 | Purchase and transfer of the factory in Guanyin distrct, Taoyuan city, was officially completed. |
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| Nov. 2013 | The 67th anniversary of Industrial Festival Celebration was held at the Yuan-Shan Grand Hotel, the company was awarded as a “40-year long term contribution vendor ” by the ministry of Economy. |
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| Oct. 2014 | Taiwan Sinto and Taiwanabrator Co., Ltd invested and established a joint venture in mainland Chian, “Jiangsu Taishintong Machinery Technology Co., Ltd.”, were approved by the boards of these two companies. |
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| Dec. 2014 | The new building construction ceremony of factory in Guanyin distrct, Taoyuan city, were held by President Yan at 10:00 am. |
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| Sep. 2016 | The opening ceremony of new factory and office building of Jiangsu Taishintong were held by President Yan at 10:00 am. |
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