Coal pit miners work underground at depths of 150 to 200m in low light environments, filled with hot, wet air full of coal dust, and surrounded by the loud noise of conveyors working all day and night.

Nowadays, mining technology has seen an improvement in conditions as pits are shored with hydraulic pillars or firm mobile scaffolds made of steel, facilitating an increase in worker productivity and safety.

Below are a series of photos by Luu Trong Dat demonstrating how workers work in mines.

These photos were one of the entries to Tuoi Tre (Youth) newspaper's year-long competition themed “Vietnam – Country – People" concluding last month.

After work at the Thong Nhat coal company

A shining smile before work

Coal streams transported on conveyors 

Workers assemble a conveyor to transport coal out of the pit.

In the pit at a depth of 200m at the Thong Nhat coal company, the air is hot and wet.

Workers moving soil to get coal 

Vehicles take workers in groups of 60 into the pit.

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