Heinz Mitteldorf Sand- und Kieswerke GmbH & Co. KG — Kelsterbach, Germany
| Certificate Number | 974-CSC21-2022 | Date of certification | Feb 20, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 Deutsch |
| Certificate | |||
| Certificate Number | 974-CSC21-2022 | Date of certification | Feb 20, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 Deutsch |
| Certificate | |||
| Certificate Number | 973-CSC21-2022 | Date of certification | Feb 20, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 Deutsch |
| Certificate | |||
| Certificate Number | 972-CSC21-2022 | Date of certification | May 9, 2023 |
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| Certificate Type | Cement | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 971-CSC21-2022 | Date of certification | Dec 22, 2022 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Deutsch |
| Client website — Certificate — CO₂-Module | |||
| 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 | 969-CSC21-2022 | Date of certification | Feb 1, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 968-CSC21-2022 | Date of certification | Feb 1, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 966-CSC21-2022 | Date of certification | May 5, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Deutsch |
| Client website — Certificate — R-Module — CO₂-Module | |||
| Certificate Number | 965-CSC24-2025 | Date of certification | Dec 12, 2025 |
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| Certificate Type | Cement | Version | 3.0 Deutsch |
| Certificate | |||
| Certificate Number | 964-CSC21-2022 | Date of certification | Jan 26, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Deutsch |
| Certificate | |||
| Certificate Number | 963-CSC21-2022 | Date of certification | Mar 6, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Deutsch |
| Client website — Certificate | |||
| Certificate Number | 961-CSC24-2025 | Date of certification | Nov 21, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 Deutsch |
| Certificate | |||
| Certificate Number | 960-CSC24-2025 | Date of certification | Nov 19, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 Deutsch |
| Certificate | |||
| Certificate Number | 958-CSC24-2025 | Date of certification | Nov 19, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 Deutsch |
| Certificate | |||
| Certificate Number | 957-CSC24-2025 | Date of certification | Nov 28, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 Deutsch |
| Certificate | |||
| Certificate Number | 956-CSC21-2022 | Date of certification | Dec 19, 2022 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||
| Certificate Number | 955-CSC24-2025 | Date of certification | Dec 1, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 Deutsch |
| Client website — Certificate | |||
| Certificate Number | 954-CSC21-2022 | Date of certification | Dec 22, 2022 |
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| Certificate Type | Aggregate | Version | 2.1 Deutsch |
| Client website — Certificate | |||
| Certificate Number | 951-CSC21-2022 | Date of certification | Jan 1, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Certificate | |||
| Certificate Number | 950-CSC21-2022 | Date of certification | Jan 1, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Certificate | |||
| Certificate Number | 949-CSC21-2022 | Date of certification | Jan 1, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Certificate | |||
| Certificate Number | 948-CSC21-2022 | Date of certification | May 9, 2023 |
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| Certificate Type | Cement | Version | 2.1 English |
| Client website — Certificate | |||
| Certificate Number | 947-CSC21-2022 | Date of certification | Jun 29, 2024 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 945-CSC21-2022 | Date of certification | Feb 21, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Certificate | |||
| Certificate Number | 944-CSC21-2022 | Date of certification | Feb 21, 2023 |
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| Certificate Type | Aggregate | Version | 2.1 English |
| Client website — Certificate | |||