"Punishments specified by the (relevant) laws are very harsh," said Huang. "But the problem is that enforcement of these laws is not strict."

Safety rules made by the central government have not been carried out at every mine in the country and, in some cases, miners lack the most rudimentary knowledge of these rules, let alone the relevant laws, he said.

For instance, the heaviest fine specified by the national safety laws amounts to 2 million yuan ($300,000). However, not a single coal mine in China has ever incurred such a heavy fine for safety violations, Huang said.

"Fines of 800,000 yuan or 1 million yuan, which have been seen in some areas, are regarded as harsh enough," he said.

Moreover, almost no local government officials have been sacked for unlicensed mines illegally operating in their jurisdiction, an example of the way in which the relevant laws are loosely enforced.

Huang also admitted that Chinese coal mines are poorly equipped to protect miners' lives.

"A few years ago, there was a 70 billion yuan shortfall in the funds available to improve safety at State-owned coal mines," he said.

The deficit was reduced slightly over the past few years, since the central government began to allocate an annual 3 billion yuan to help the mines invest in improving safety conditions.

"But more funds are needed," he added, "as one-third of the equipment at key State-owned mines needs to be replaced."

"China has become a country with the world's most deadly mine disasters as a result of lax of enforcement and insufficient investment," Huang said.

The lack of training for migrants who find work in the mines also adds to the potential for mining disasters.

Of the 5.5 million coal miners in China, about half are migrant workers, while almost all those employed at small coal mines come from rural areas.

"Migrant workers are both perpetrators and victims of accidents," said Huang.

In a recent case, 38 miners were killed and another 115 trapped underground at the Wangjialing Coal Mine in Shanxi province on March 28. Most of the miners who were caught up in the ordeal are migrant workers from nearby villages or other provinces.

If China wants to substantially cut down on mining accidents, the country needs to address the fundamental issues regarding safety and the backwardness of its development model, Huang said.