Greentech Technology International's (HKG:0195) Rension Project of Bluestone Mines Tasmania Joint Venture saw a 14.8% increase in tin production to 3,329 tons in the fourth quarter of 2024, from 2,899 tons in the third quarter, a Thursday Hong Kong bourse filing said.
The project mined 218,567 tons of ore and processed 180,721 tons during the three months ended Dec. 31, 2024.
The grade of ore mined increased by 0.19 percentage points to around 2.10%, while the average quarterly recoveries increased by 2.2 percentage points to 81.16% from 78.96% in the previous quarter.
Greentech has a 50% equity interest in the Renison project through unit YT Parksong Australia Holding.
Shares of the mining business company plummeted nearly 36% on Thursday's close.
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