The Curragh mine is also well advanced in establishing dry-hire arrangements at the Curragh North mining area where four fleets will be converted to a Coronado-operated model.

Curragh's focus for the June quarter and the remainder of 2022 is to continue implementing the "One Curragh Plan" to drive operational performance to the mine plan to ensure greater coal availability.

"Production rates for the mine are weighted to the second half of the year, with an elevated focus on waste removal and box cut works in the first half to improve dragline strike length and decongest the mine," Coronado said.

"Planned maintenance activities to one of Curragh's draglines and the CHPP [coal handling and preparation plant] facilities are planned for the June quarter. Highwall mining activities are scheduled for the second half of the year."

Curragh's run-of-mine production for the March quarter was 3.5 million tonnes, which was 3.9% higher than the December quarter.

"Higher March quarter production rates have been realised compared to the prior quarter, which was impacted by above average wet weather and temporary closure following the safety incident," the company said.