Table 1: Historical production statistics for the Dornod open pit mine

 Year Waste
produced

(tonnes)
Ore produced
(tonnes)
Ore grade
(%U)
Ore grade
   (%U3O8)
Uranium
recovered

(pounds U3O8)
Uranium 
recovered 

(tU) 

1988 6 128 000 117 400 0.090 0.106 253 000 97
1989 7 515 750 122 400 0.091 0.108 267 000 103
1990 3 864 250 75 000 0.100 0.118 163 000 63
1991 160 500 66 000 0.100 0.118 158 000 61
1992 222 500 100 000 0.104 0.123 248 000 95
1993 609 000 76 600 0.091 0.108 167 000 64
1994 824 750 150 500 0.104 0.123 374 000 144
1995—96 Unknown 238 000 0.071 0.084 Ore stockpiled -

Total   945 900 0.091 0.108 1 630 000 627

The Dornod Uranium Project in Mongolia: Wallace M. Mays

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