Exploitatiemaatschappij L'Ortye Stein BV — Elsloo, Netherlands
| Certificate Number | 420-CSC21-2023 | Date of certification | Jun 25, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 420-CSC21-2023 | Date of certification | Jun 25, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 165-CSC24-2025 | Date of certification | Dec 22, 2025 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 247-CSC21-2023 | Date of certification | Dec 4, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Nederlands |
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| Certificate Number | 1968-CSC24-2025 | Date of certification | Dec 10, 2025 |
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| Certificate Type | Aggregate | Version | 3.0 Deutsch |
| Client website — Certificate | |||
| Certificate Number | 513-CSC21-2023 | Date of certification | Dec 20, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Nederlands |
| Client website — Certificate | |||
| Certificate Number | 1352-CSC21-2023 | Date of certification | May 23, 2024 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Nederlands |
| Client website — Certificate | |||
| Certificate Number | 67-CSC21-2023 | Date of certification | Sep 15, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 376-CSC21-2023 | Date of certification | Nov 15, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Nederlands |
| Client website — Certificate — R-Module | |||
| Certificate Number | 1567-CSC24-2024 | Date of certification | Sep 1, 2024 |
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| Certificate Type | Concrete, Precast | Version | 3.0 NL |
| Certificate | |||
| Certificate Number | 110-CSC24-2025 | Date of certification | Dec 4, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 NL |
| Client website — Certificate | |||
| Certificate Number | 293-CSC21-2023 | Date of certification | Jul 19, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Nederlands |
| Client website — Certificate | |||
| Certificate Number | 88-CSC24-2024-U | Date of certification | Nov 1, 2024 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 175-CSC24-2024 | Date of certification | Jan 10, 2025 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 340-CSC21-2023 | Date of certification | Apr 27, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Nederlands |
| Client website — Certificate | |||
| Certificate Number | 107-CSC24-2025 | Date of certification | Dec 4, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 NL |
| Client website — Certificate | |||
| Certificate Number | 101-CSC24-2025 | Date of certification | Dec 4, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 NL |
| Client website — Certificate | |||
| Certificate Number | 108-CSC24-2025 | Date of certification | Dec 4, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 NL |
| Client website — Certificate | |||
| Certificate Number | 68-CSC21-2023 | Date of certification | Sep 15, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 266-CSC24-2026 | Date of certification | Apr 21, 2026 |
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| Certificate Type | Aggregate | Version | 3.0 English |
| Certificate | |||
| Certificate Number | 1957-CSC24-2025 | Date of certification | Nov 27, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 NL |
| Client website — Certificate | |||
| Certificate Number | 256-CSC21-2021 | Date of certification | Nov 10, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Nederlands |
| Client website — Certificate | |||
| Certificate Number | 126-CSC24-2024 | Date of certification | Oct 1, 2024 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 970-CSC21-2022 | Date of certification | May 5, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Nederlands |
| Client website — Certificate | |||
| Certificate Number | 865-CSC24-2025 | Date of certification | Apr 28, 2025 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 421-CSC21-2023 | Date of certification | Jul 20, 2023 |
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| Certificate Type | Cement | Version | 2.1 English |
| Certificate | |||