Surcharge Update - January 2015
| Grades | Nov | Dec | Jan | Feb | Mar | Apr |
| 15-5 | 0.5532 | 0.5183 | 0.5320 | 0.5028 | * | * |
| 15-7 | 0.8214 | 0.7521 | 0.7738 | 0.7309 | * | * |
| 17-4 | 0.5375 | 0.5059 | 0.5164 | 0.4898 | * | * |
| 17-7 | 0.7196 | 0.6637 | 0.6989 | 0.6477 | * | * |
| 18SR | 0.2599 | 0.2451 | 0.0833 | 0.2445 | * | * |
| 201 | 0.5407 | 0.5024 | 0.5233 | 0.4928 | * | * |
| 301 7.0% | 0.7176 | 0.6632 | 0.7377 | 0.6462 | * | * |
| 302/304/304L | 0.7818 | 0.7216 | 0.7607 | 0.7038 | * | * |
| 304-8.5% | 0.8139 | 0.7507 | 0.7923 | 0.7319 | * | * |
| 305 | 1.0427 | 0.9596 | 1.0185 | 0.9334 | * | * |
| 309 | 1.0718 | 0.9893 | 1.0481 | 0.9630 | * | * |
| 310 | 1.5376 | 1.4156 | 1.5089 | 1.3741 | * | * |
| 316/316L | 1.0626 | 0.9738 | 1.0127 | 0.9449 | * | * |
| 317L | 1.2280 | 1.1254 | 1.1641 | 1.0909 | * | * |
| 321 | 0.8373 | 0.7712 | 0.8152 | 0.7514 | * | * |
| 347 | 1.1048 | 1.0388 | 1.0828 | 1.0190 | * | * |
| 409/409 Mod | 0.2079 | 0.1919 | 0.1918 | 0.1916 | * | * |
| 410/410S | 0.2143 | 0.1986 | 0.1984 | 0.1982 | * | * |
| 430 | 0.2518 | 0.2368 | 0.2365 | 0.2363 | * | * |
| 434 | 0.3152 | 0.2939 | 0.2898 | 0.2908 | * | * |
| 439 | 0.2597 | 0.2448 | 0.2445 | 0.2443 | * | * |
| 440A | 0.2518 | 0.2368 | 0.2365 | 0.2363 | * | * |
| 2205 | 0.8947 | 0.8254 | 0.8358 | 0.8033 | * | * |
| 2507 | 0.9572 | 0.8838 | 0.8978 | 0.8599 | * | * |
| 20 | 3.1711 | 3.0855 | 2.9699 | 2.4911 | 2.4627 | 2.4885 |
| 263 | 6.5976 | 6.6404 | 6.4026 | 5.4841 | 5.3508 | 5.3868 |
| 276 | 7.5358 | 7.3927 | 7.0490 | 5.9081 | 5.8131 | 5.8284 |
| A286 | 2.1594 | 2.0983 | 2.0213 | 1.6852 | 1.6621 | 1.6857 |
| 330 | 2.8115 | 2.7233 | 2.6309 | 2.1918 | 2.1727 | 2.2115 |
| 400 | 5.2890 | 5.1104 | 4.9206 | 4.1084 | 4.0801 | 4.1106 |
| 600 | 5.6638 | 5.4787 | 5.2848 | 4.3779 | 4.3518 | 4.4342 |
| 601 | 4.7999 | 4.6488 | 4.4904 | 3.7453 | 3.7231 | 3.7898 |
| 625 | 7.3493 | 7.2024 | 6.9453 | 5.9882 | 5.9282 | 5.9674 |
| 718 | 6.6878 | 6.5603 | 6.3880 | 5.6714 | 5.6361 | 5.6828 |
| X-750 | 6.1274 | 5.9474 | 5.7590 | 4.8771 | 4.8517 | 4.9317 |
| 800H/HT | 2.5391 | 2.4627 | 2.3826 | 1.9994 | 1.9814 | 2.0148 |
| 825 | 3.6146 | 3.5173 | 3.3765 | 2.8085 | 2.7751 | 2.8056 |
| HX | 4.9650 | 4.8538 | 4.6281 | 3.8182 | 3.7574 | 3.7827 |
| 188 | 7.6000 | 7.5000 | 7.6000 | 7.3200 | * | * |
| L-605 | 8.2700 | 8.1400 | 8.2700 | 8.0600 | * | * |