N.S. government approves gypsum mine in Carrolls Corner

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The Nova Scotia government has given the go-ahead to a low-carbon gypsum mine that is expected to open in Carrolls Corner next year.

The Antrim Gypsum Mine, which received environmental assessment approval in 2024, got its industrial approval on Monday, which allows CertainTeed Canada Inc. to operate an open pit mine in the area.

The 27-hectare mine, which is roughly 50 kilometres northeast of Halifax, is expected to produce roughly 1.5 million tonnes of gypsum and anhydrite annually once it launches in 2027. It’s also expected to provide more than 60 full-time jobs.

The site is scheduled to have a lifespan of more than 20 years.

The CertainTeed Canada Inc. website says the mine will have segregated stockpiles for till and organic materials, a rock processing plant and a water management infrastructure for “responsible environmental practices.”

All gypsum material will be transported to a port facility in Sheet Harbour for shipment to manufacturing facilities in North America.

According to the provincial government’s critical mining strategy, which was updated in 2025, gypsum is used in drywall, plaster, cement, fertilizer, dust suppressants, mold-making materials and personal care products.

Last month, the province granted approval to Atlantic Mining Nova Scotia to process roughly three million tonnes of stockpiled gold ore at the Touquoy mine site in Moose River.

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