Data is retrieved from U.S International Trade Commission and then manipulated on a monthly basis. Unfortunately, there is no different category for Quartzite so we believe from our past experience that Quartzite is also followed under the same HTS number as Granite, hence these data include not only granite but also quartzite import data.
| HTS Number | Type | Description |
| 6802.23.0000 | Granite | GRANITE MON OR BLDG STONE SMPLY CUT OR SAWN W FLAT OR EVN SURFACE |
| 6802.93.0010 | Granite | GRANITE FOR MONUMENTAL OR BUILDING PURPOSES OF SUBHDG 6802.23.00, NOT CUT TO SIZE, WITH ONLY ONE FACE SURFACE-WORKED MORE THAN SIMPLY CUT OR SAWN |
| 6802.93.0025 | Granite | GRANITE,MONUMENTAL OR BUILDING,CUT TO SIZE,ONE OR MORE FACES OR EDGES WORKED MORE THAN SIMPLY CUT OR SAWN, MAX THICKNESS OVER 1.5 BUT NOT OVER 7.5 CM |
| 6802.93.0090 | Granite | GRANITE, NESOI |
| 6802.99.0060 | Granite | OTHER STONE, NESOI |