Samsung said the planned merger is legitimate and would not hurt the value of shareholders, accusing the US fund of filing a lawsuit aimed at taking away high dividends.
The Seoul Central District Court promised to rule on July 1 on the dispute, which pits Elliott against South Korea's richest family, who control the USD 270 billion Samsung business empire.
In recent years, the group controlled by hospitalised Samsung patriarch Lee Kun-Hee has merged, broken out or newly listed some key units as he prepares to hand over the reins to his son, JY Lee.
Elliott has filed separate injunctions aimed at blocking Samsung's friendly shareholder, KCC Corp, from voting at the meeting of shareholders next month.
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At Friday's hearing, Samsung rebutted Elliott's claim that Cheil Industries, the group's virtual holding company, was using illicit means to lowball Samsung C&T's minority shareholders, according to the Yonhap news agency.
Elliott, the third-largest shareholder of Samsung C&T with a 7.1 per cent stake, insisted the merger was based on an underestimation of Samsung C&T's value and an exaggerated assessment of Cheil Industries.
The fund also said the merger ratio was not properly calculated.
"The merger... Is aimed at facilitating the transfer of family leadership, not for the interests of Samsung C&T," the US fund said through lawyers cited by Yonhap.
Samsung C&T controls a 4.1 per cent stake in Samsung Electronics, the group's flagship unit and the world's top maker of smartphones and mobile phones.
The Lee family, which controls the group via a complex web of cross shareholdings between its subsidiaries, currently has a less than five per cent stake in Samsung Electronics, a holding that will be boosted by the merger.