Green activists urged the Government yesterday to throw out an attempt to resume the disposal of toxic mud in the South China Sea. Greenpeace issued the call as an appeal board was due to decide this week whether to allow the Container Terminal 9 dredging contractor to resume dumping contaminated mud at Erzhou Island, 42km south of Hong Kong in mainland waters. The contractor, a joint venture of Hyundai and the China Civil Engineering Construction Company, was issued a permit to dump one million cubic metres of the material, but operations were halted by the Environmental Protection Department in October after protests by the green group. Campaigner Howard Liu Hung-to said yesterday he would oppose any decision to issue a new permit. 'The department has continued to issue permits despite the fact that our sea-dumping law has banned any dumping that would affect the environment. It makes the developers feel that Hong Kong laws have given them the right to dump in the open.' The contractor was unavailable for comment last night.