24 April 2025
As part of its commitment to reducing the environmental impact of its mining and nickel processing operations, Harita Nickel has built two coal storage domes on Obi Island, North Maluku.
Each dome measures 600 meters in length and 140 meters in width, with a storage capacity of up to 370,000 tons of coal.
“These coal domes prevent coal dust from spreading into the environment. The dust stays inside the dome,” said Tonny Gultom, Director of Health & Safety Environment at Harita Nickel. He illustrated the massive size by comparing it to five football fields combined, all under one roof.
The domes are specially designed to be completely enclosed and are filled with inert gas to lower oxygen levels inside. This reduces the risk of fire and helps maintain coal quality. Beyond protecting the coal from weather exposure, the design also effectively prevents dust from escaping into the surrounding environment.
Another key measure is the use of covered conveyor belts to transport coal from the dock to the storage domes at one of its business units, PT Halmahera Jaya Feronikel (HJF). This system replaces trucks and heavy equipment, significantly reducing fuel consumption and emissions.
“In fact, the use of conveyors has helped cut coal consumption in the smelter by 6.4%, which is equivalent to avoiding 271 tons of CO2e emissions,” he added. “We also use covered conveyor belts to deliver coal from the domes to the power plant,” he said.
While various innovations have been implemented, Harita Nickel remains committed to further minimizing its environmental footprint.
“Harita Nickel stands by its principles: good, responsible, and sustainable mining operations,” Tonny concluded.
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