| Assured Concrete - 132A Marconi Road - CM1 1QB |
| Bates For Ballast - 10 Storms Way - CM2 6NU |
| Euromix Concrete Ltd - Boreham - CM3 3AW |
| Hanson Aggregates - Bulls Lodge Quarry - CM3 3HR |
| Hanson Premix - Bulls Lodge Quarry - CM3 3HR |
| Lafarge Aggregates Ltd - Boyton Cross Quarry - CM1 4LT |
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