Both men also face further charges of obstruction of justice, with Lwin Moe Tun receiving two counts for this offence and Chua receiving one.
Lwin Moe Tun is accused of deleting a message and photograph related to the unsafe changing of a faulty heater from a WhatsApp conversation between himself and Mr Subbaiyan Marimuthu, who died in the explosion.
He allegedly did this on his phone on Feb 25, 2021 and on Mr Subbaiyan’s phone the next day.
Chua, who also goes by the name Cai Xingda, is accused of abetting Lwin Moe Tun by telling him that it was okay to delete the communications from his phone on Feb 25, 2021.
All three accused will return to court for pre-trial conferences at the end of August.
The penalties for failing to ensure the safety of any machinery kept on the work site and taking steps to ensure the safety and health of employees is up to two years’ jail, a fine of up to S$200,000 or both.
The punishment for a negligent act that endangers the safety or health of employees is jail for up to two years, a fine of up to S$30,000 or both.
Those who obstruct the course of justice, or abet such an act, can be jailed for up to seven years, fined or both.