Description
Enhances Coal Output at Coal Mine
Coal Output IV
Requirements
| Level | Prerequisites | Research Cost | Time | Bonus | Power |
|---|---|---|---|---|---|
| 1 |
Research Center 23 Iron Mining III 1 |
 1 200 000  1 200 000  240 000  62 000  16 000 |
11:06:40 |
Coal Output: 8.00% |
2080 |
| 2 |
Research Center 24 |
1 700 000 1 700 000 340 000 86 000 22 000 |
16:40:00 |
Coal Output: 8.00% |
2080 |
| 3 |
Research Center 25 |
3 700 000 3 700 000 740 000 180 000 48 000 |
1d 20:26:40 |
Coal Output: 10.00% |
2600 |
