An explosion that ripped through the Dongfang Mine shaft on August 19 killed 27 workers and injured one, causing direct economic losses of over 45 million yuan.
Among the 42 people who have been penalised, 21 have been transferred to judicial organs for their alleged crimes, 20 received punishments for violating discipline, and another one received administrative punishment, state-run Xinhua news agency reported.
An investigation showed that the mine was operating illegally at the time of the incident.
The Dongfang mine's license has been suspended and illegal income has been confiscated, the report said.