Issuer ? Anthracites du Tonkin
| Year | Bénéfices nets | Bénéfices industriels | Dividende action |
|---|---|---|---|
| 1925 | 763.000 | 1.858.000 | 9 |
| 1926 | 1.760.027 | 4.152.891 | 15 |
| 1927 | 1.585.700 | 3.186.252 | 12 |
| 1928 | 1.601.100 | 3.220.100 | |
| 1929 | 113.200 | 1.280.400 | |
| 1930 | 429.300 | 8.200 | |
| 1931 | 1.032.900 |