There have also been safety concerns - multiple workers have been killed in construction-related accidents and 19 lab workers were charged last year over faking concrete test reports, with one man jailed for eight months last December.
Senior lab technician and supervisor Mak Pui-shing was sentenced to 32 months in prison today, while former assistant Kwong Fu-yin was jailed for 22 months, local media reports said.
The court was told earlier that Kwong's attempts at rigging the tests included substituting the brick with a metal cylinder to meet strength requirements, the South China Morning Post reported.
Dogged by delays, budget overruns, accusations of corruption and the deaths of construction workers, it is unclear when the bridge will officially open. Since 2011, at least 369 industrial accidents and nine deaths have been recorded, according to the labour department.
Building started in 2009 on the 55-kilometre (34-mile) crossing, which includes a snaking road bridge and underwater tunnel, linking Hong Kong's Lantau Island to the southern mainland Chinese city of Zhuhai and the gambling enclave of Macau, across the waters of the Pearl River Estuary.
Officials put the current cost overrun of the main bridge section at 10 billion yuan (USD 1.5 billion), partly driven by engineering challenges, which have included problems with the drifting of reclaimed land.
The original cost of that section, including bank loans, was 37.7 billion yuan.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)
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