| 2016/03/23 | YFO(3622)Fourth Quarter 2015 Investor Conference Document |
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| 2016/03/18 | YFO(3622) Fourth Quarter 2015 Investor Conferences |
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| 2015/03/25 | YFO(3622)Fourth Quarter 2014 Investor Conference Document |
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| 2015/03/19 | YFO(3622) Fourth Quarter 2014 Investor Conferences |
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| 2014/03/26 | YFO(3622)Fourth Quarter 2013 Investor Conference Document |
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| 2014/03/20 | YFO(3622) Fourth Quarter 2013 Investor Conferences |
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| 2014/03/17 | The investor conference of YFO postpones to March 26(Wed) PM2:30 |
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| 2014/03/14 | YFO(3622) Fourth Quarter 2013 Investor Conferences |
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| 2013/11/12 | YFO(3622)Third Quarter 2013 Investor Conference Document |
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| 2013/11/11 | YFO(3622) Third Quarter 2013 Investor Conferences |
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