From: Benefits of cassiterite mining by artisanal miners in Jos Plateau, Nigeria
Company | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | Latest reserve position |
---|---|---|---|---|---|---|---|
ATMNLTD. | – | 44,436 | 45,172 | 49,165 | 48,165 | 48,840 | 49,313 31 March 1978 |
Ex-lands Nig.Ltd. | 3283 | 2964 | 2969 | 2722 | 3054 | 2953 | 2953, 31 December 1977 |
Kaduna Prospecting Nig.Ltd. | 2300 | 2330 | 2820 | 3083 | 3087 | 2596 | 3004, 31 December 1977 |
Gold and Base Metal Mines of Nig.Ltd. | 2292 | 2190 | 2291 | 2269 | 2510 | 2260 | 2260, 31 December 1977 |
Bisichi-JentarNig.Ltd. | – | – | – | – | – | 11,638 | 11,638, 31 December 1977 |