Hindustan Zinc Ltd’s (HZL) mined metal production increased by 2 per cent during 2025-26. However, HZL’s refined metal production declined by 0.4 per cent, and silver production fell by 9 per cent during the year.
A media statement said that HZL recorded the highest-ever mined metal production at 1,114 kt (thousand tonnes) during 2025-26 against 1,095 kt in 2024-25, a growth of 2 per cent. It attributed this growth in production to higher ore production and better grades.
Mined metal production stood at at 315 kt during the fourth quarter of 2025-26 as against 310 kt in the corresponding period of 2024-25, recording a growth of 2 per cent.
Refined metal in FY26
Refined metal production of the company stood at 1,048 kt during 2025-26 as against 1,052 kt in 2024-25, registering a decline of 0.4 per cent.
During 2025-26, refined zinc production increased by 3 per cent to 851 kt (827 kt in 2024-25), and refined lead production declined by 13 per cent to 197 kt (225 kt).
The statement said the refined zinc production was driven by commissioning of de-bottlenecking projects and 160 ktpa roaster along with Pyro operations on zinc-lead mode for full year. Refined zinc production includes output from Hindustan Zinc Alloys (100 per cent subsidiary of HZL).
It said that refined lead production declined by 13 per cent, primarily on account of Pyro operations running partially on lead mode in the previous period and lower plant availability.
Fourth quarter
Refined metal production of the company stood at 282 kt during the fourth quarter of 2025-26 as against 270 kt in the corresponding period of 2024-25, registering a growth of 5 per cent.
The statement said that the record quarterly refined metal production at 282 kt was driven by additional capacity unlocked by the de-bottlenecking projects at Chanderiya and Dariba, improved operational efficiency and higher plant availability.
During Q4 2025-26, refined zinc production increased by 6 per cent to 227 kt (214 kt in Q4 2024-25), and refined lead production declined by 2 per cent to 55 kt (56 kt).
Silver
Silver production declined by 9 per cent to 627 tonnes during 2025-26 (687 tonnes), in line with lead production. It was affected by lower silver input from mines in accordance with the mining sequence. Silver production declined by 0.2 per cent to 176 tonnes during Q4 2025-26 (177 tonnes in Q4 2024-25).
Wind power
HZL’s wind power production increased to 372 million units in 2025-26 from 348 million units in 2024-25, a growth of 7 per cent. However, wind power generation declined by 11 per cent to 56 million units in Q4 2025-26 from 63 million units in Q4 2024-25.