The cuts at the Adelaide support office for the Olympic Dam operations come about six months after BHP scrapped about 90 permanent positions and 210 contractor jobs.
The company will hear by June 30 whether it will be allowed to mine polyhalite, a type of potash fertilizer, from a deposit located under Brittan’s North York Moors national park.
Teck is facing sanctions over infractions that include openings in the deposit where the ore is stored and a failure to build sufficient water infrastructure.
Collectively, Canada's energy sector lost more than $600 million in the first three months of this year, and the Canadian economy shrank in the same period, as the collapse in oil prices took its toll.
The probe focused on a 2010 deal through which the company gave a 9% of its South Deep mine to a group of black investors in order to meet government’s regulations aimed to boost black ownership.