Su-Yin was the CEO of ISR Capital, one of the stocks allegedly manipulated by Soh. She was appointed to that role back in April 29, 2011.
SINGAPORE (Mar 27): Prosecutors at the penny stock saga trial of John Soh Chee Wen and Quah Su-Ling have asked the court to bar two individuals closely-linked to the defendants from attending the court proceedings – if they are to be called as defence witnesses.
The two individuals are Quah Su-Yin, sister of Su-Ling, and Ronald Menon, husband of Su-Yin, both of whom are present at the public gallery today.

