| 7/26/2023 | EMGN | United Microelectronics plans up to NT$20 billion of straight corporate bonds
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| 6/20/2023 | EM | Fitch Assigns UMC BBB+
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| 9/26/2017 | EM | New Issue: United Microelectronics prices NT$5.4 billion five-, seven-year bonds
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| 10/26/2016 | EM | Taiwan’s United Microelectronics plans up to NT$10 billion bonds
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| 5/30/2014 | EM | New Issue: Taiwan's United Microelectronics issues NT$5 billion 1.7%, 1.95% bonds
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| 4/30/2014 | EM | Taiwan's United Microelectronics plans up to NT$10 billion bonds
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| 4/25/2012 | EM | Taiwan's United Microelectronics to offer up to NT$20 billion bonds
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| 8/25/2008 | EM | Fitch affirms United Microelectronics
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| 5/3/2007 | EM | Fitch: Asia semiconductors stable
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| 3/28/2007 | CVEM | Fitch rates United Microelectronics BBB
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| 1/25/2007 | CVEM | Fitch: United Microelectronic unaffected
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| 1/25/2007 | CVEM | S&P: No change for United Microelectronics
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| 1/3/2006 | CVEMHY | S&P's United Microelectronics ratings unaffected
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| 12/19/2005 | CVEM | Fitch rates United Microelectronics foreign currency debt BBB
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| 9/30/2005 | CVEM | S&P rates United Microelectronics convertible BBB+
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| 9/28/2005 | CVEM | New Issue: United Microelectronics prices $381.4 million 0% convertibles
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| 7/25/2005 | CVEM | United Microelectronics to sell up to $500 million convertibles
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| 2/17/2005 | EM | S&P: United Microelectronics unaffected
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| 6/7/2004 | CVEM | S&P ups United Microelectronics
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