Quality Certificates Concrete Units SANS 677-2020 – EXP 30 March 2025 Concrete Units ISO 9001 – EXP 19 January 2025 Concrete Units ISO 14001 Dekra – EXP 05 May 2024 Concrete Units ISO 45001 Dekra – EXP 30 May 2024 Concrete Units SANS 986-2019 – EXP 28 June 2023