Greenstone Building Blocks from United States
Greenstone building blocks are metamorphic greenstone blocks sawn rectangular for eco-architecture and memorials. The stone contains chlorite, giving it a green hue and durability, and is merely cut by sawing, classifying under tariff item 2516.90.00 as other monumental or building stone.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the stone is not further processed beyond sawing; any grinding or polishing may alter the tariff classification
• Provide a mineralogical description to the CBSA to support classification as greenstone
• Check for any anti-dusting agents added, which are allowed only if they do not make the product suitable for a specific use