Hyoyoung's tweets in particular were used and focused on when the "bullying situation" in T-ara first appeared. Hyoyoung was appearing to defend her sister, as they are sisters and both are in Core Contents Media.
Core Contents Media said on the 31st that, "Hwayoung's situation has nothing to do with Hyoyoung," and emphasized that Hyoyoung's current position will not change.
Hyoyoung debuted in September of 2010 with Coed School, and now is a member of the girl group 5dolls. Yesterday, it was announced that CCM has terminated Hwayoung's contract with T-ara.
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Source: http://news.nate.com.../20120730n18709
Translated by: Nathaniel @ Diadem