◎ Resources: Silver resources (including associated resources) were 14612 tonnes, which was in the top rank in China. Iron ore resources were 478 million tonnes.
◎ Production: The Group produced 1,088,966kg of silver, representing an increase of 19.45% compared with the same period last year (same period last year: 911,649kg).

Among which，701,508kg of silver was produced from refineries as by-product, representing an increase of 16.37% compared with the same period last year (same period last year: 602,842kg);

387,458kg of mined silver was produced, representing an increase of 25.47% compared with the same period last year (same period last year: 308,806kg).

3.35 million tonnes of iron ore were produced, representing a decrease of 21.09% compared with the same period last year (same period last year: 4.25 million tonnes).

3,643 tonnes of mined-tungsten, 4,576 tonnes of mined-molybdenum and 2,506 tonnes of mined-cobalt were produced.

Certain copper, zinc and gold refineries produced 3,022,987 tonnes of sulphuric acid as by-product, representing an increase of 2.38% compared with the same period last year (same period last year: 2,952,731 tonnes).

◎ Costs:  In 2022, the unit cost of sales of mine-produced silver was RMB1.63/gramme, representing an increase of 4.22% compared with the same period last year (same period last year: RMB1.57/gramme); the unit cost of sales of iron ore was RMB214.16/tonne, representing an increase of 2.43% compared with the same period last year (same period last year: RMB209.08/tonne).

◎ Contribution:  Sales income from silver, iron ore and other products represented 32.27% (after elimination) of the operating income during the reporting period, the gross profit of which represented 18.33% of the gross profit of the Group.