Hong Kong authorities have been urged by lawmakers to disclose the locations of pipes lined with bitumen and to install sensors to monitor water quality after the substance was discovered in the ...

The water pipe believed to have introduced black particles of bitumen into the freshwater supply at two public housing estates in Hong Kong last month will be replaced by early July, the development ...

Hong Kong will begin replacing a 400-metre (437 yards) section of water pipe lined with bitumen this year before carrying out citywide work, as it is believed to be the source of black particles ...