BHP to suspend operations, cut jobs at Australian coking coal mine

BHP, in partnership with Mitsubishi Development, will suspend operations and cut 750 jobs at its Saraji South coking coal mine in Queensland from November 2025. This decision is driven by the combined impact of normalized coking coal prices, which have fallen to $188.80 from 2022 highs, and increased Queensland government royalties, now reaching up to 40%, making lower-margin operations unsustainable. The move highlights significant operational challenges and cost pressures faced by major miners due to market conditions and regulatory policies.

Analysis

BHP Mitsubishi Alliance (BMA) will suspend operations at its Saraji South coking coal mine in Queensland from November 2025, a move that will result in 750 job cuts. The decision is a direct response to margin compression driven by two factors: the normalization of coking coal prices, which have fallen to $188.80 per ton from post-invasion highs of over $600, and a substantial increase in Queensland's government royalties. The revised tax regime, effective July 2022, imposes a top tier of 40% on prices over A$300 per ton, making lower-margin operations unsustainable. While the broader Saraji complex produced 8.2 million metric tons in fiscal year 2025, this specific suspension highlights the acute sensitivity of mining profitability to both commodity cycles and fiscal policy. Despite this operational halt, BHP's management noted that medium-term demand for its hard coking coal remains strong, positioning this as a necessary, cost-driven adjustment rather than a strategic retreat from the commodity.

Key Decisions for Investors

• Investors should treat this as a clear signal of heightened sovereign risk in Queensland, reassessing the profitability of other mining assets in the region under the current royalty framework and normalized commodity prices.
• While the financial impact is delayed until late 2025, this suspension warrants a downward adjustment in production forecasts for BHP's coking coal segment and introduces the risk of future care and maintenance costs impacting segment profitability.
• The decision underscores the importance of focusing on miners with assets in lower-cost quartiles and more stable fiscal jurisdictions, as BHP's action demonstrates that even major producers will shutter operations when margins are eroded by government policy.