They are Datuk Seri Ng Chian Sia, 55; Teh Swee Chin, 31; Bee Hooi Siang, 44; Eee Ching Hock, 47; Jeremy Cheng Yee Fun, 34; Mah Chee Seng, 46; Yeoh Kah Man, 26; Goh Chun Shien, 36; Ng Ah Boey, 37; Yeoh Choon Hin, 37, and Teng Kok Haw, 26.

The others are Lim Leong Huat, 27; Chee Chia Heng, 32; Song Wai Hon, 33; Teoh Jong Yow, 36; Yeoh Choon Hong, 45; Lee Chew Hong, 40; Tan Soo Ching, 36; Teh Hang Beng, 38; Tang Soon Poh, 24; Teoh Chin Yeow, 24, and Teng Kok Loon, 29.

All of them, who were in handcuffs, made the plea after the charge was read out to them separately in Mandarin before Judicial Commissioner Ab Karim Ab Rahman.

They were charged with becoming members of the organised criminal group in the Timur Laut district between Jan 1, 2015 and Jan 29 this year.

The charge, under Section 130V(1) of the Penal Code, provides an imprisonment for up to 20 years, if found guilty.

However, they were not allowed bail as the offence is under the Security Offences (Special Measures) Act 2012, which is not bailable.

The prosecution was conducted by deputy public prosecutors Mohd Izhanudin Alias and Muhammad Fadzlan Mohd Noor.

Lawyers Muhammad Shafee Abdullah represented Chian Sia, while Ashok Athimulan and Michael KL Chee represented Choon Hin.

Athimulan also represented Choon Hong, while the other accused were represented by lawyer Ranjit Singh Dhillon.

The court set May 4 for mention.