Contract blasting and explosives engineering in all environments: surface, underground and underwater. Services range from contract blasting to consulting.

Crushed and Broken Granite Mining and Quarrying, Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining, Industrial Sand Mining, All Other Nonmetallic Mineral Mining

All Other Nonmetallic Mineral Mining, Support Activities for Coal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining