Four company directors and a workshop manager were charged in the Selayang Sessions Court today in connection with the pollution in Sungai Gong which resulted in water supply disruption to more than 1.2 million people recently.

They are brothers Yip Kok Wai, 53, Yip Kok Mun, 58, Yip Kok Kuin, 70, and Yip Kok Wong, 60, who are the board of directors of Yip Chee Seng & Sons Sdn Bhd, and Ho Voon Leong, 59, who is the manager of the company's workshop.

All of them pleaded not guilty to charges made against...